Manual Gossen Metrawatt METRAHIT X-TRA (page 8 of 71) (English)

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SECULIFE⏐HIT

METRAHIT⏐X-

TRA⏐OUTDOOR⏐TECH⏐PRO⏐BASE

TRMS Digital Multimeter

Operating Instructions

3-349-352-03

11/7.15

2 GMC-I Messtechnik GmbH

Standard Equipment Contact Persons

Standard Equipment

1multimeter

1 KS17-2 measurement cable set

2 batteries

1 abbreviated operating instructions

1 CD ROM (contents: amongst other topics operating

instructions and data sheet)

1 DAkkS calibration certificate

For 15,400 measured values, sampling rate adjustable from 0.1 second to 9 hours

Function

SECU

LIFE

⏐

HIT

METRA

HIT

⏐

X-

TRA/

OUTDOOR

METRAHIT⏐

TECH

METRAHIT⏐

PRO

METRA

HIT

⏐

BASE

V AC / Hz TRMS

(Ri ≥ 9 MΩ)

•

& Filter

•

& Filter

•

& Filter

•

V AC TRMS

(Ri = 1 MΩ)

•

& Filter

•

& Filter

•

& Filter

—

V AC+DC TRMS

(Ri ≥ 9 MΩ)

••••

V DC (Ri ≥ 9 MΩ)

••••

... 1 MHz 5 V AC

• ———

Duty cycle as %

• ———

Hz (V AC)

... 100 kHz ... 100 kHz ... 100 kHz ... 100 kHz

Bandwidth, V AC

15 Hz ... 20 kHz 15 Hz ... 10 kHz 15 Hz ... 10 kHz 15 Hz ... 1 kHz

A AC / Hz TRMS

100 μA

1/10/100 mA

1 A / 10 (16) A

10/100 mA

1 A / 10 (16) A

—

A AC+DC TRMS

—

A DC

—

Fuse

10 A/1000 V 10 A/1000 V 10 A/1000 V —

1kHz

Transformation factor

— • — •

A AC / Hz TRMS

—

mV/A

mA/A

—

mV/A

Ri = 1 MΩ

A AC+DC TRM

—

mV/A

mA/A

—

mV/A

Ri = 1 MΩ

A DC

—

mV/A

mA/A

—

mV/A

Ri = 1 MΩ

Hz (A AC)

... 30 kHz ... 30 kHz ... 30 kHz ... 30 kHz

Resistance Ω

••••

Continuity

••••

Diode ... 5,1 V

••••

Temperature TC (K)

••••

Temperature RTD

• ———

Capacitance

••——

MIN/MAX / data hold

••••

4 MBit memory

• ———

IR Interface

• ———

Power pack adapter

socket

• ———

Protection

IP52 / IP65 IP52 IP52 IP52

Measuring category

1000 V CAT III

600 V CAT IV

1000 V CAT III

600 V CAT IV

1000 V CAT III

600 V CAT IV

1000 V CAT III

600 V CAT IV

Function

SECU

LIFE

⏐

HIT

METRA

HIT

⏐

X-

TRA/

UTDOOR

METRAHIT⏐

ECH

METRAHIT⏐

METRA

HIT

⏐

ASE

GMC-I Messtechnik GmbH 3

Contact Persons

Accessories (sensors, plug inserts, adapters, consumable materials)

The accessories available for your instrument are checked for

compliance with currently valid safety regulations at regular

intervals, and are expanded as required for new applications.

Currently up-to-date accessories which are suitable for your

measuring instrument are listed at the following web address

along with photo, order number, description and, depending

upon the scope of the respective accessory, data sheet and

operating instructions:

www.gossenmetrawatt.com

see also chapter 3.1

(METRAHIT⏐X-TRA⏐OUTDOOR only)

Fuse for current measuring ranges, see chapter 9.3

(not METRAHIT⏐B

ASE)

The device may not be disposed of with the trash.

Further information regarding the WEEE mark can be

accessed on the Internet at www.gossenmetrawatt.com

under the search term WEEE (see also chapter 9.5).

Calibration seal (blue seal):

see also “Recalibration” on page 65.

5 V / 600 mA

Serial number

Registration number

Date of calibraion (year – month)

German Accrediation Body GmbH – Calibration lab

XY123

2012-07

D-K-

15080-01-01

16 GMC-I Messtechnik GmbH

Initial Start-Up – Setup

3 Initial Start-Up

3.1 Inserting Batteries or Rechargeable Batteries

Be certain to refer to chapter 9.2 regarding correct battery

installation.

Momentary battery voltage can be queried in the Info menu (see

chapter 6.3).

Attention!

Disconnect the instrument from the measuring circuit before

opening the battery compartment lid in order to replace the

batteries.

Operation with the Power Pack

(accessory for METRAHIT⏐X-

TRA, not included, see chapter 10.3)

Installed batteries are disconnected electronically if the NA X-TRA

power pack is used, and need not be removed from the

instrument.

If rechargeable batteries are used, they must be recharged

externally.

If the external power supply is switched off, the device is

automatically switched to battery operation without interruption.

3.2 Activation

Switching the Instrument On Manually

Ð Press the ON / OFF | LIGHT key until the display appears.

Power-up is acknowledged with a brief acoustic signal. As

long as the key is held depressed, all of the segments at the

liquid crystal display (LCD) are illuminated.

The LCD is depicted on page 13.

The instrument is ready for use as soon as the key is released.

Display Illumination

After the instrument has been switched on, background illumina-

tion can be activated by briefly pressing the ON / OFF | LIGHT key. Il-

lumination is switched back off by once again pressing the same

key, or automatically after approximately 1 minute.

Switching the Instrument On via PC (METRAHIT⏐X-

TRA⏐OUTDOOR only)

The multimeter is switched on after transmission of a data block

from the PC, assuming the “irStb ” has been set to “ir on ”

(see chapter 6.4).

However, we recommend using the power saving mode: “ir off ”.

Note

Electrical discharge and high frequency interference may

cause incorrect displays to appear, and may disable the

measuring sequence.

Disconnect the device from the measuring circuit. Switch the

instrument off and back on again in order to reset. If the

problem persists, briefly dislodge the battery from the

connector contacts (see also chapter 9.2).

3.3 Setting the Operating Parameters

Setting Time and Date

See the “t iME ” and “dAtE ” parameter in chapter 6.4.

Display Modes for the Analog Display

Selection can be made from two different display modes

(see “A.diSP ” parameter in chapter 6.4).

Display Modes for the Digital Display

Selection can be made from two different display modes

(see “0.diSP ” parameter in chapter 6.4).

GMC-I Messtechnik GmbH 17

Initial Start-Up – Setup

3.4 Switching the Instrument Off

Switching the Instrument Off Manually

Ð Press the ON / OFF | LIGHT key until 0FF appears at the display.

Shutdown is acknowledged with a brief acoustic signal.

Automatic Shutdown

The instrument is switched off automatically if the measured value

remains unchanged for a long period of time (maximum measured

value fluctuation of approx. 0.8% of the measuring range per

minute, or 1 °C or 1 ° F per minute), and if none of the keys or the

rotary switch have been activated before a selected period of time

in minutes has elapsed (see “APoFF ” parameter on page 49.)

Shutdown is acknowledged with a brief acoustic signal.

Exceptions include:

Transmission and memory mode operation, continuous operation

and whenever a dangerous voltage is applied to the input (U > 55

V AC or U > 70 V DC).

Disabling Automatic Shutdown

The instrument can be set to continuous operation.

Ð Simultaneously press the and keys to

this end.

The “Continuous On” function is indicated at by means of the

ON display to the right of the battery symbol.

The “Continuous On” setting can only be cancelled by changing the

respective parameter, and not by switching the instrument off

(see “APoFF ” on page 49).

ON / OFF

LIGHT

FUNC

ENTER

ON / OFF

LIGHT

Auto-Range

8.8.8.8.8

Illumination On

000.00

ON / OFF

LIGHT

Illumination Off

000.00

ON / OFF

LIGHT

0ff

ON / OFF

LIGHT

Long

(1 s)

18 GMC-I Messtechnik GmbH

Control Functions

4 Control Functions

4.1 Selecting Measuring Functions and Measuring Ranges

The rotary switch is linked to the automatic socket blocking

mechanism, which only allows access to two connector jacks for

each function. Be certain to remove the appropriate plug from its

respective jack before switching to and from the “A” functions.

The socket blocking mechanism prevents the user from inadvert-

ently turning the selector switch to impermissible functions after

the measurement cables have been plugged in to the instrument.

4.1.1 Automatic Range Selection

The multimeter is equipped with auto-ranging for all measuring

functions, except for temperature measurement, diode and

continuity testing, and the MHz measuring function. Auto-ranging

is active as soon as the instrument is switched on. The instrument

automatically selects the measuring range which allows for

highest possible resolution of the applied quantity. When the

instrument is switched to frequency measurement, the previously

selected voltage measuring range remains active.

The Auto-Ranging Function

The multimeter is switched automatically to the next higher range

at ±(11999 d + 1 d → 01200 d), and to the next lower range at

±(01100 d - 1 d → 10990 d).

Exception, capacitance measurement:

The multimeter is switched automatically to the next higher range

at ±(1199 d + 1 d → 0120 d), and to the next lower range at

±(0110 d - 1 d → 1099 d).

4.1.2 Manual Measuring Range Selection

Auto-ranging can be deactivated and measuring ranges can be

selected manually in accordance with the following table by

pressing the MAN / AUTO button.

The desired measuring range can then be selected with the

 or

 scroll key.

The instrument is automatically returned to range selection when

the MAN / AUTO key is pressed, the rotary switch is activated or the

instrument is switched off and back on again.

Overview: Auto-Ranging and Manual Range Selection

* Via manual measuring range selection only

Function Display

MAN / AUTO

Manual mode active:

utilized measuring range is fixed

MAN

 or 

Range switching sequence for:

V: 100 mV*

↔

1 V

↔

10 V

↔

100 V

↔

1000 V

Hz: 100 Hz

↔

1 kHz

↔

10 kHz

↔

100 kHz

Ω: 100 Ω

↔

1 kΩ

↔

10 kΩ

↔

100 kΩ

↔

1 MΩ

↔

10 MΩ

↔

40 MΩ

A: METRAHIT⏐X-

TRA⏐OUTDOOR:

100

↔

1 mA

↔

10 mA

↔

100 mA

↔

1 A

↔

10 A (16 A)

METRAHIT⏐T

ECH:

10 mA

↔

100 mA

↔

1 A

↔

10 A (16 A)

METRAHIT⏐P

RO: 1A

↔

10 A (16 A)

A:METRAHIT⏐B

ASE and METRAHIT⏐TECH:

see chapter 5.7.3 ff

F: METRAHIT⏐X-

TRA⏐OUTDOOR and METRAHIT⏐TECH:

10 nF

↔

100 nF

↔

100

↔

1000

MAN

MAN / AUTO

Return to automatic measuring range selection —

GMC-I Messtechnik GmbH 19

Control Functions

4.1.3 Quick Measurements

Measurements performed using a suitable fixed measuring range

are executed more quickly than those which utilize automatic

range selection. Quick measurement is made possible with the

following two functions:

• Manual measuring range selection, i.e. selection of the measuring

range with the best resolution (see chapter 4.1.2).

•With the DATA function (see chapter 4.4). In this way, the

appropriate measuring range is selected automatically after the

first measurement and the second measurement is executed

more quickly.

The selected measuring range remains active for the subsequent

series of measurements with these two functions.

4.2 Zero Offset / Relative Measurements

Depending upon deviation from the zero point, zero balancing or

a reference value for relative measurements can be stored to

memory:

The applicable reference or correction value is deducted

individually for the respective measuring function as an offset from

all subsequent measurements, and remains in memory until

deleted, or until the multimeter is switched off.

Zero balancing and reference value adjustment can be used for

auto-ranging, as well as for manual measuring range selection.

Zero Balancing

Ð Plug the measurement cables into the instrument and connect

the free ends to each other, except for capacitance

measurement in which case the ends of the cables are not

connected to each other.

Ð Briefly press the ZERO | ESC key.

The instrument acknowledges zero balancing with an acoustic

signal, and the “ZERO ΔREL” symbol appears at the LCD. The

value measured at the moment the key is pressed serves as a

reference value.

Ð Zero balancing can be cleared by once again pressing the

ZERO | ESC key.

Note

As a result of TRMS measurement, the multimeter dis-

plays a residual value of 1 to 30 digits with short-circuited

measurement cables as the zero point for V AC / I AC or

V(AC+DC) / I (AC+DC) measurements (non-linearity of the

TRMS converter). This has no influence on specified

accuracy above 2% of the measuring range (or 3% in the

mV range).

Setting the Reference Value

Ð Plug the measuring cables into the instrument and measure a

reference value (max. 5000 digits).

Deviation from zero

– With short-circuited measurement cables for V, Ω, A

– With open input for capacitance unit of measure F

Display

0 to 200 digits ZERO ΔREL

> 200 to 5000 digits ΔREL

20 GMC-I Messtechnik GmbH

Control Functions

Ð Briefly press the ZERO | ESC key.

The instrument acknowledges storage of the reference value

with an acoustic signal, and the “ZERO ΔREL” or the “ΔREL”

symbol appears at the LCD. The value measured at the

moment the key is pressed serves as a reference value.

Ð The reference value can be cleared by once again pressing the

ZERO | ESC key.

Notes Regarding Relative Measurement

• Relative measurement effects the digital display only. The

analog display continues to read out the original measured

value.

• In the case of relative measurement, Ω / F or AC quantities

may also appear as negative values.

4.3 Display (LCD)

4.3.1 Digital Display

Measured Value, Unit of Measure, Type of Current, Polarity

The measured value with decimal and plus or minus sign appears

at the digital display. The selected unit of measure and type of

current are displayed as well. A minus sign appears to the left of

the value during measurement of zero-frequency quantities, if the

plus pole of the measured quantity is applied to the “⊥” input.

The “0.diSP ” parameter can be used to determine whether lead-

ing zeros will be appear or be suppressed at the measured value

display (see chapter 6.4).

Overranging

If the upper range limit of 12,000 digits is exceeded “0L” (overload)

appears at the display.

Exceptions: “0L” appears as of 1200 digits for capacitance

measurement, and as of 5100 digits for diode testing.

4.3.2 Analog Display

Measured Value, Polarity

The analog display demonstrates the dynamic performance of a

moving-coil mechanism. This display is especially advantageous

for observing measured value fluctuation, and for balancing

procedures.

Two different display modes can be selected in the “SET ” menu

with the help of the “A.diSP ” parameter (see chapter 6.4):

• Bar graph

• Pointer: The current measured value is tracked in real-time.

The analog scale displays a negative range of 2 scale divisions for

the measurement of zero-frequency quantities, allowing for

precise observation of measured value fluctuation around zero. If

the measured value exceeds the negative range of 2 scale

divisions, polarity is reversed at the analog display.

Scaling of the analog scale is automatic. This is very helpful for

manual measuring range selection.

Overranging

Overranging in the positive range is displayed by means of the

right triangle symbol.

Refresh Rate

In the bar graph and pointer modes, the analog display is

refreshed 40 times per second.

GMC-I Messtechnik GmbH 21

Control Functions

4.4 Measured Value Storage: DATA (auto-hold / compare)

An individual measured value can be automatically “frozen” with

the DATA function (auto-hold). This is useful, for example, when

contacting the measuring points with the test probes requires

your full attention. After the measuring signal has been applied

and the measured value has settled in in accordance with the

“condition” listed in the table below, the measured value is frozen

at the digital display and an acoustic signal is generated. The test

probes can now be removed from the measuring points, and the

measured value can be read from the digital display. If the

measuring signal falls below the value specified in the table, the

function is reactivated for storage of the next value.

Measured Value Comparison (DATA Compare)

If the currently frozen value deviates from the first saved value by

less than 100 digits, the acoustic signal is generated twice. If

deviation is greater than 100 digits, only a brief acoustic signal is

generated.

Note

The DATA function has no effect on the analog display, at

which the current measured value continues to appear.

However, when the digital display if “frozen”, the decimal

point is fixed as well (fixed measuring range, symbol:

MAN).

The selected measuring range should not be manually

changed as long as the DATA function is active.

The DATA function is deactivated by pressing and holding the

DATA/MIN/MAX key (for approx. 1 second), when the measuring

function is changed or when the instrument is switched off and

back on again.

Reactivation results from falling short of specified measured value limits.

Two acoustic signals are generated the first time a measured value is

saved as a reference value. For subsequent data hold, two acoustic

signals are only generated if the currently frozen value deviates from the

first saved value by less than 100 digits.

Key: MV = measured value, R = measuring range

DATA

Function

Press

DATA /

Min/Max

Condition Response from Instrument

Measuring

Function

Measuring

Signal

Display

Acoustic

Digital

DATA

Activate Brief blinks Once

Save

(stabilized

measured

value)

V, A, F, Hz,

MHz, %

> 10%

of R

Is dis-

played

Static

Once

Twice

≠ 0L

Reactivate

V, A, F, Hz,

MHz, %

< 10%

of R

Stored

Blinks

= 0L

Change to

Min/Max

Brief See table in chapter 4.4.1

Exit Long

Is cleared Is cleared

Twice

V, A, Hz

t [s]

100%

10%

Activated

Reactivated

Save

10,000 digits

of measuring range

F, MHz, %

22 GMC-I Messtechnik GmbH

Control Functions

Example

The voltage measuring range is set manually to 10 V.

The first measured value is 5 V, which is stored to memory

because it is greater than 10% of the measuring range (= 1 V),

and is thus reliably above the background noise level. As soon as

the measured values drops to less than 10% of the measuring

range, i.e. amounts to less than 1 V which corresponds to

removal of the test probes from the measuring point, the

instrument is ready to store a new value.

4.4.1 Saving Minimum and Maximum Values – MIN/MAX Function

Minimum and maximum measured values applied to the

measuring instrument’s input after the Min/Max function has been

activated can be “frozen” at the display. The most important use

of this function is the determination of minimum and maximum

values during long-term measured value observation.

The Min/Max function can be activated in all measuring functions.

The Min/Max function has no effect on the analog display, at

which the momentary measured value continues to appear.

Apply the measured quantity to the instrument and set the

measuring range with the MAN / AUTO key before activating the

Min/Max function.

The Min/Max function is deactivated by pressing and holding the

DATA/MIN/MAX key (for approx. 1 second), when the measuring

function is changed or when the instrument is switched off and

back on again.

Note

As opposed to the DATA function, the Min/Max function

can also be used for temperature measurement.

Min/Max

Function

Press

DATA /

Min/Max

Min. and Max.

Measured Values

Response from Instrument

Display

Acoustic

Signal

Measured Value

Digital

Max.

Min.

Activate

and save

2 x brief are saved

Momentary

measured

value

Max

and

min.

2 x

Save and

display

Brief

Storage continues in

background,

new min. and max.

values are displayed.

Saved min.

value

Min. 1 x

Brief

Saved max.

value

Max. 1 x

Return to 1

Brief

Same as 1,

stored values are not

deleted

Same as 1

Same

as 1

1 x

Stop Long Are deleted

Momentary

measured

value

deleted

2 x

GMC-I Messtechnik GmbH 23

Control Functions

4.5 Measurement Data Recording (METRAHIT⏐X-TRA⏐OUTDOOR only)

The METRAHIT⏐X-

TRA⏐OUTDOOR is capable of recording measure-

ment data using an adjustable sampling rate for long periods of

time in the form of measurement series. Data are stored to a bat-

tery backed memory module, and are retained even after the mul-

timeter is switched off. The system acquires measured values rel-

ative to real-time.

Stored measured values can subsequently be read out with the

help of METRAwin 10 software. The only prerequisite is a PC which

is connected by means of an interface cable to the

USB X-TRA bi-directional interface adapter, which is in turn

plugged onto the METRAHIT⏐X-

TRA⏐OUTDOOR. See also chapter 7.

Memory Parameters Overview (METRAHIT⏐X-TRA⏐OUTDOOR only)

The STORE Menu Function

Ð First set the sampling rate for memory mode operation (see rAtE

parameter in chapter 6.4) , and then start memory mode oper-

ation.

Ð First select the desired measuring function and an appropriate

measuring range.

Ð Check the battery charge level before starting long-term

measurement recordings (see chapter 6.3).

Connect the NA X-TRA power pack if required.

Starting Recording via Menu Functions

Ð Switch to the “SET ” mode by pressing MEASURE | SETUP and se-

lect the “StorE ” menu.

1nFo

 ...  StorE 000.0%  StArt

Ð Memory mode operation is started by pressing FUNC | ENTER.

STORE appears underneath the analog display and indicates

that memory mode operation has been activated.

“StoP ” appears at the digital display.

Ð Press MEASURE | SETUP in order to return to the measuring

function.

Parameter Page: header

CLEAr

24: Clear Memory

EMpty

24: Clear Memory – appears after CLEAr

0CCvP

24: Querying Memory Occupancy

rAtE

48: rAtE – set the sampling rate (METRAHIT⏐X-TRA⏐OUTDOOR only)

StArt

23: Starting Recording via Menu Functions

StoP

24: Ending Recording

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

24 GMC-I Messtechnik GmbH

Control Functions

During Recording

STORE is displayed underneath the analog display during memory

mode operation, and

memory occupancy

can be controlled:

StoP

 000.3%

The following message appears as soon as memory is full: “

100

%”.

In order to be able to observe measured values during recording,

switch to the measuring function by pressing MEASURE | SETUP.

The display is returned to the memory menu after once again

pressing MEASURE | SETUP.

A new memory block is created when another measuring function

is selected with the rotary switch or the FUNC | ENTER key. Data

storage then continues automatically.

Ending Recording

Ð “StoP ” appears at the display after pressing MEASURE | SETUP.

StoP start

Ð Acknowledge the “StoP ” display by pressing FUNC | ENTER.

STORE is cleared from the display, indicating that recording has

been ended.

Ð Press MEASURE | SETUP in order to return to the measuring

function.

Ð Memory mode operation can also be exited by switching the

multimeter off.

Querying Memory Occupancy

Memory occupancy can be queried during recording with the

help of the “1nFo ” menu (see also chapter 6.3).

Memory occupancy range: 000.1% to 099.9%.

1nFo

bAtt



...



0CCvP

017.4

Memory occupancy can be queried before recording is started via

the “StorE” menu.

1nFo

 ...  StorE 017.4 %  StArt

Clear Memory

This function deletes all measured values from memory!

This function cannot be executed during memory mode

operation.

1nFo

 ...  StorE 017.4% w StArt

 CLEAr empty

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

GMC-I Messtechnik GmbH 25

Control Functions

26 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5 Measurements

5.1 Voltage Measurement

Notes Regarding Voltage Measurement

• The multimeter may only be operated with installed batteries or

rechargeable batteries. Dangerous voltages are otherwise not

indicated, and the instrument may be damaged.

• The multimeter may only be operated by persons who are

capable of recognizing contact hazards and taking the appropri-

ate safety precautions. Contact hazards exist anywhere, where

voltages of greater than 33 V RMS may occur.

The test probes may only be only gripped up to the finger

guard.

Do not touch the metallic test probes under any

circumstances.

• Avoid working alone when taking measurements which involve

contact hazards. Be certain that a second person is present.

• Maximum permissible voltage between the connector sockets,

(9 and 10) and ground (8) is 1000 V for measuring category III,

and 600 V for measuring category IV.

• Be prepared for the occurrence of unexpected voltages at

devices under test (e.g. defective devices). For example,

capacitors may be dangerously charged.

• No measurements may be made with this instrument in

electrical circuits with corona discharge (high-voltage).

• Special care is required when measurements are made in HF

electrical circuits. Dangerous pulsating voltages may be

present.

• Be aware of the fact that dangerous voltage spikes are not displayed

during measurement with the low-pass filter.

We recommend measuring voltage without the low-pass filter first, in

order to be able to detect any dangerous voltages.

• Be absolutely certain that the measuring ranges are not

overloaded beyond their allowable capacities. Limit values are

included in chapter 8, “Technical Data”, in the table entitled

“Measuring Functions and Measuring Ranges” in the “Over-

load Capacity” column.

Scope of Functions, Voltage Measurement

A 1 kHz low-pass filter can be used in this case, in order to filter out high

frequency pulses of greater than 1 kHz, for example when performing

measurements at pulsed motor drives.

Input resistance of approx. 1 MΩ. Erroneous displays resulting from

capacitive coupling during voltage measurement in power supply

systems are reduced to a minimum in this way.

Function

METRA

HIT

⏐

X-TRA/

OUTDOOR

METRAHIT⏐

TECH

METRAHIT⏐

PRO

METRA

HIT

⏐

BASE

V AC / Hz TRMS

(Ri ≥ 9 MΩ)

••••

V AC / LP filter 1 kHz

(Ri = 1 MΩ

) TRMS

•••—

V AC+DC TRMS

(Ri ≥ 9 MΩ)

••••

V DC (Ri ≥ 9 MΩ)

••••

MHz at 5 V AC

• ———

Duty cycle as %

• ———

Freq. response, V AC

20 kHz 10 kHz 10 kHz 1 kHz

GMC-I Messtechnik GmbH 27

V/Hz, Ω, Temperature, and A/Hz Measurements

5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC)

Note

Only to observe for METRAHIT⏐TECH: Set the CL iP parameter to

0FF in the current clip setup menu. Otherwise all measured

values are displayed in amperes, and are corrected by the

amount resulting from the selected transformation ratio for

an interconnected clip-on current sensor.

1nFo

 ...  SET rAtE  ...  CL IP

1 / 10/100/1000 / 0ff



Ð In accordance with the voltage to be measured, turn the rotary

switch to V or V .

Ð Connect the measurement cables as shown.

The “⊥” connector jack should be grounded.

Note

An intermittent acoustic signal warns the operator if the meas-

ured value exceeds the upper range limit in the 1000 V range.

Make sure that a current measuring range (“A”) has not been

activated when the multimeter is connected for voltage measure-

ment! If the fuse’s blowing limits are exceeded as a result of oper-

ator error, both the operator and the instrument are in danger!

With the rotary switch in the V position, the multimeter is always

set to the 1 V measuring range immediately after it is switched on.

As soon a the MAN / AUTO key is pressed, and assuming the

measured value is less than 90 mV, the multimeter is switched to

the mV measuring range.

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

COM

Tem p

– (+)

+ (–)

V= : 100 mV…1000 V

020.00

TRMS

020.00

> 55 V AC or > 70 V DC:

> 1000 V:

Warnings regarding dangerous voltage:

Max. 1000 V (< 10 kHz)

V: 100 mV…1000 V

Hz: 1Hz … 100 kHz

Max. 100 V (> 10 kHz)

max

= 3 x 10

V x Hz

Measuring Ranges:

230

FUNC

ENTER

for U > 100 V

28 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.1.2 Alternating Voltage Measurement with 1 MΩ Load Resistance

and Frequency Measurement with Selectable Low-Pass Filter

(METRAHIT⏐X-TRA⏐OUTDOOR⏐TECH⏐PRO only)

The measuring instrument includes a V

1MΩ

switch position for

electricians with an input resistance of approximately 1 MΩ.

Erroneous displays resulting from capacitive coupling during

voltage measurement in power supply systems are reduced to a

minimum in this way.

Note

METRAHIT⏐TECH: see note in chapter 5.1.1.

Ð In accordance with the voltage to be measured, turn the rotary

switch to V~

1MΩ

or .

Ð Connect the measurement cables as shown.

The “⊥” connector jack should be grounded.

Voltage Measurement

Note

An intermittent acoustic signal warns the operator if the

measured value exceeds the upper range limit in the 1000 V

range.

Make sure that a current measuring range (“A”) has not been

activated when the multimeter is connected for voltage measure-

ment! If the fuse’s blowing limits are exceeded as a result of oper-

ator error, both the operator and the instrument are in danger!

Ð You can switch back and forth between voltage measurement

with and without low-pass filter.

Ð Press the FUNC | ENTER multifunction key repeatedly until unit of

measure V or V/Fil appears at the display.

Frequency Measurement

Ð Apply the measured quantity is the same way as for voltage

measurement.

Ð Manually select the measuring range for the voltage amplitude.

When the instrument is switched to frequency measurement,

the previously selected voltage measuring range remains

active.

Ð You can switch back and forth between frequency

measurement with and without low-pass filter.

Press the FUNC | ENTER multifunction key repeatedly until unit of

measure Hz or Hz/Fil appears at the display.

Lowest measurable frequencies and maximum allowable

voltages are included in chapter 8, “Technical Data”.

Measurement with Low-Pass Filter

Attention!

Be aware of the fact that dangerous voltage spikes are not

displayed during this type of measurement (see also “Voltage

Comparator”.

We recommend measuring voltage without the low-pass filter

first, in order to be able to detect any dangerous voltages.

A 1 kHz low-pass filter can be activated if required, in order to

filter out high frequency pulses of greater than 1 kHz, for example

when performing measurements at pulsed motor drives, i.e.

undesired voltages of greater than 1 kHz can be suppressed.

The active low-pass filter is indicated by the Fil display. The

multimeter is automatically switched to manual measuring range

selection.

1 kHz

GMC-I Messtechnik GmbH 29

V/Hz, Ω, Temperature, and A/Hz Measurements

Voltage Comparator for Displaying Dangerous Voltage

The input signal or measuring signal is checked by a voltage

comparator for dangerous spikes, because these do not appear

at the display when the low-pass filter is used.

At voltages of greater than 55 V AC or 70 V DC, a danger symbol

appears at the display: .

COM

Temp

Max. 1000 V (< 10 kHz)

V~: 100 mV…1000 V

Hz: 1Hz … 100 kHz

Max. 100 V (> 10 kHz)

max

= 3 x 10

V x Hz

Measuring Ranges:

> 55 V AC or > 70 V DC:

> 1000 V:

Warnings regarding dangerous voltage:

230

for U > 100 V

1 kHz

1MΩ

1 kHz

0225.6

TRMS

050.00

Hz with Filter

1 kHz

0226.0

TRMS

049.99

V~ with Filter

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

30 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.1.3 Alternating Voltage and Frequency Measurement V AC and Hz

with Selectable Low-Pass Filter

(METRAHIT⏐X-TRA⏐OUTDOOR⏐TECH⏐PRO only)

Note

METRAHIT⏐TECH: see note in chapter 5.1.1.

Ð In accordance with the voltage or frequency to be measured,

turn the rotary switch to V~ or Hz.

Ð Connect the measurement cables as shown.

The “⊥” connector jack should be grounded.

Voltage Measurement

Note

An intermittent acoustic signal warns the operator if the meas-

ured value exceeds the upper range limit in the 1000 V range.

Make sure that a current measuring range (“A”) has not been

activated when the multimeter is connected for voltage measure-

ment! If the fuse’s blowing limits are exceeded as a result of oper-

ator error, both the operator and the instrument are in danger!

Ð You can switch back and forth between voltage measurement

with and without low-pass filter.

Ð Press the FUNC | ENTER multifunction key repeatedly until unit of

measure V or V/Fil appears at the display.

Frequency Measurement

Ð Apply the measured quantity is the same way as for voltage

measurement.

Ð Manually select the measuring range for the voltage amplitude.

When the instrument is switched to frequency measurement,

the previously selected voltage measuring range remains

active.

Ð You can switch back and forth between frequency

measurement with and without low-pass filter.

Press the FUNC | ENTER multifunction key repeatedly until unit of

measure Hz or Hz/Fil appears at the display.

Lowest measurable frequencies and maximum allowable

voltages are included in chapter 8, “Technical Data”.

Measurement with Low-Pass Filter

Attention!

Be aware of the fact that dangerous voltage spikes are not

displayed during this type of measurement (see also “Voltage

Comparator”.

We recommend measuring voltage without the low-pass filter

first, in order to be able to detect any dangerous voltages.

A 1 kHz low-pass filter can be activated if required, in order to

filter out high frequency pulses of greater than 1 kHz, for example

when performing measurements at pulsed motor drives, i.e.

undesired voltages of greater than 1 kHz can be suppressed.

The active low-pass filter is indicated by the Fil display. The

multimeter is automatically switched to manual measuring range

selection.

The specified measuring accuracy is not achieved when the filter

is activated and signals are greater than 100 Hz.

GMC-I Messtechnik GmbH 31

V/Hz, Ω, Temperature, and A/Hz Measurements

Voltage Comparator for Displaying Dangerous Voltage

The input signal or measuring signal is checked by a voltage

comparator for dangerous spikes, because these do not appear

at the display when the low-pass filter is used.

At voltages of greater than 55 V AC or 70 V DC, a danger symbol

appears at the display:

COM

Temp

Max. 1000 V (< 10 kHz)

V~: 100 mV…1000 V

Hz: 1Hz … 100 kHz

Max. 100 V (> 10 kHz)

max

= 3 x 10

V x Hz

Measuring Ranges:

> 55 V AC or > 70 V DC:

> 1000 V:

Warnings regarding dangerous voltage:

230

for U > 100 V

0230.6

TRMS

050.03

0229.6

TRMS

V~ with Filter

1 kHz

050.00

Hz with Filter

1 kHz

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

32 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.1.4 Transient Overvoltages

The multimeters are protected against transient overvoltages of

up to 8 kV with wave-front durations of 1.2 ms and halftimes of

50 μs in the voltage measuring range. If longer pulse durations are

expected, for example when conducting measurements at trans-

formers or motors, we recommend the use of our KS30 measur-

ing adapter. It provides protection against transient

overvoltages of up to 6 kV with wave-front durations of 10, and

halftimes of 1000 μs.

Continuous load capacity is 1200 V

RMS

. Additional influence error

caused by the KS30 measuring adapter amounts to approxi-

mately -2%.

5.1.5 Voltage Measurements at Above 1000 V

Voltages of greater than 1000 V can be measured with a

high-voltage probe, e.g. the HV3

or the HV30

from GMC-I

Messtechnik GmbH. It is absolutely essential to earth the ground

terminal in this case. Observe all applicable safety precautions!

HV3: 3 kV

HV30: 30 kV, for (DC) voltages only

COM

Tem p

Voltage Measurements at Above 1000 V

with the HV3 High-Voltage Probe

Black

Red

Black

x1000

x100

GMC-I Messtechnik GmbH 33

V/Hz, Ω, Temperature, and A/Hz Measurements

5.1.6 Frequency and Duty Cycle Measurements

(METRAHIT⏐X-

TRA⏐OUTDOOR only)

Ð Set the rotary switch to MHz or %.

Ð Connect the measurement cables as shown.

Make sure that a current measuring range (“A”) has not been

activated when the multimeter is connected for frequency or

duty cycle measurement!

Attention!

The applied signal voltage may not exceed 5 V.

Frequency Measurement, MHz

A 5 V signal with a frequency of up to 1 MHz is measured and

displayed using MHz as a unit of measure. Pulse frequency

demonstrates the reciprocal value of pulse period.

Duty Cycle Measurement, t

The ratio of pulse duration to pulse period is measured with

periodic square-wave signals and displayed as a percentage.

Note

The applied frequency must remain constant during duty

cycle measurement.

duty cycle (%) =

pulse duration (t

)

pulse period (t

)

• 100

COM

Tem p

Max. 5 V

1.0323

MHz

002.00

MHz

Pulse Time Quantities

pulse frequency = 1/t

pulse duration

pulse period

– t

interpulse period

pulse or duty cycle

FUNC

ENTER

Measuring Ranges:

MHz t

100 Hz ... 1 kHz 2 ... 98%

... 10 kHz 5 ... 95%

... 100 kHz 10 ... 90%

34 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.2 Resistance Measurement, Ω

Ð Disconnect supply power from the electrical circuit of the

device to be measured, and discharge all high-voltage

capacitors.

Ð Make sure that the device under test is voltage-free.

Interference voltages distort measurement results!

Refer to chapter 5.1.1 regarding testing for the absence of

voltage with the help of the direct voltage measurement.

Ð Set the rotary switch to “Ω”.

Ð Connect the device under test as shown.

Note

Use short or shielded measurement cables in the case of

high-impedance resistance.

Improving Accuracy by means of Zero Balancing

Cable resistance and contact resistance can be eliminated in all

measuring ranges by means of zero balancing (see chapter 4.2).

COM

Tem p

0V !

000.00

100 Ω … 40 MΩ

Measuring Ranges:

GMC-I Messtechnik GmbH 35

V/Hz, Ω, Temperature, and A/Hz Measurements

5.3 Continuity Test

Ð Disconnect supply power from the electrical circuit of the

device to be measured, and discharge all high-voltage

capacitors.

Ð Make sure that the device under test is voltage-free.

Interference voltages distort measurement results!

Ð Set the rotary switch to .

Ð Connect the conductor path under test as shown.

Depending upon the selected limit value, the multimeter

generates a continuous acoustic signal in the case of continuity or

short-circuit, i.e. at a value of less than the selected limit value.

“0L” appears at the display in the case of an open connection.

The limit value can be adjusted in the “SETUP” menu (see also

chapter 6.4):

1nFo

 ...  SET rAtE  ...  bEEP

1, 10, 20, 30, 40, 90 Ω



(10 = default setting)

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

COM

Tem p

0V !

000.8

0.443

R < 1, 10, 20, 30, 40, 90 Ω

FUNC

ENTER

36 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.4 Diode Testing with a Constant Current of 1 mA

Ð Disconnect supply power from the electrical circuit of the

device to be measured, and discharge all high-voltage

capacitors.

Ð Make sure that the device under test is voltage-free.

Interference voltages distort measurement results!

Refer to chapter 5.1.1 regarding testing for the absence of

voltage with the help of the direct voltage measurement.

Ð Set the rotary switch to .

Ð Press the

FUNC

| ENTER

key.

Ð Connect the device under test as shown.

Conducting Direction and Short-Circuit

The instrument displays forward voltage in volts (display: 4

places). As long as voltage drop does not exceed the maximum

display value of 5.1 V, several series connected components or

reference diodes can be tested with a small reference voltage and

reference diodes.

Reverse Direction and Interruption

The measuring instrument indicates overload 0L.

Note

Resistors and semiconductor paths connected in parallel to

the diode distort measurement results!

COM

Temp

Forward Direction Reverse Direction

0V !

0.654

0.L

to 5.100 V

Measuring Range:

–

0.443

000.8

FUNC

ENTER

GMC-I Messtechnik GmbH 37

V/Hz, Ω, Temperature, and A/Hz Measurements

5.5 Temperature Measurement

Temperature measurement is performed with a type K

thermocouple (accessory, not included), which is connected to

the voltage input. Alternatively, a Pt100 or Pt1000 resistance

thermometer can be used with the METRAHIT⏐X-TRA⏐OUTDOOR .

Selecting the Unit of Measure for Temperature

1nFo

 ...  tEMP °C / °F 

(°C = default setting)

5.5.1 Measurement with Thermocouples, Temp TC

Ð Set the rotary switch to “Temp

”.

Note

METRAHIT⏐X-TRA⏐OUTDOOR only:

The last selected temperature measurement or the last

selected temperature sensor, i.e. type K or Pt100/Pt1000,

remains in memory and is accordingly displayed. Press the

FUNC | ENTER key in order to change to the other measuring

function if required.

Ð The reference temperature is measured at the internal

reference junction (see parameter “1tEMP ” in chapter 6.3

regarding querying).

Note

The internal reference temperature (temperature of the inter-

nal reference junction) is measured by a temperature sensor

inside of the instrument. This may be somewhat above room

temperature as a result of internal heat-up, or moving from

warmer to colder surroundings or vice versa.

Ð Connect the sensor to the two accessible jacks. The instru-

ment displays the measured temperature using the selected

unit of measure.

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

Temp

0023.3

°C

Temp

RTD

Type K

COM

Temp

TE (TC)

0256.0

°C

Pt1000

RTD

Measuring Range

TE (TC) K (NiCr-Ni) –250.0 … +1372.0 °C

FUNC

ENTER

38 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.5.2 Measurement with Resistance Thermometers

(METRA

HIT

⏐

X-

TRA

⏐

UTDOOR

only)

Ð Set the rotary switch to “Temp

” or “Temp

RTD

”.

The last selected temperature measurement or sensor, i.e. type K

or Pt100/Pt1000, remains in memory and is accordingly

displayed. Press the FUNC | ENTER key in order to change to the

other measuring function if required. The sensor type, i.e. Pt100

or Pt1000, is detected automatically and displayed.

There are two different ways to compensate for cable resistance:

Automatic Compensation

Ð Press the ZERO | ESC key.

“Short leads” appears at the display.

If you prefer to enter cable resistance directly, you can skip the

following entry prompt.

Ð Short circuit the measuring instrument’s connector cables.

“000.00 ” appears at the display. After pressing the FUNC |

ENTER key, automatic compensation of cable resistance is

activated for all subsequent measurements. The short-circuit

can now be eliminated, and the device is ready for use.

Entering Cable Resistance

Ð Press the ZERO | ESC key once again in the automatic

compensation menu.

Ð Enter the known resistance of the connector cables with the

scroll keys: Select the digit to be changes with the   keys,

and change the respectively selected digit with the

 keys.

The default value is 0.43 Ω. Values can be selected within a

range of 0 to 50 Ω.

Upon pressing the

FUNC | ENTER

key, the selected value is activated and

the display is returned to the measuring function. Cable resistance re-

mains in memory even after the instrument has been switched off.

COM

Temp

0023.3

°C

Temp

RTD

Type K

0025.6

°C

Pt1000

RTD

000.00

Short Leads

R L

Enter Cable Resistance

Automatic

RTD

Compensation

Measuring Ranges

RTD Pt100 – 200.0 … +850.0 °C

RTD Pt1000 –150.0 … +850.0 °C

FUNC

ENTER

FUNC

ENTER

ZERO

ESC

ZERO

ESC

FUNC

ENTER

000.50

R L

GMC-I Messtechnik GmbH 39

V/Hz, Ω, Temperature, and A/Hz Measurements

5.6 Capacitance Measurement

(METRAHIT⏐X-

TRA⏐OUTDOOR and METRAHIT⏐TECH only)

Ð Disconnect supply power from the electrical circuit of the

device to be measured, and discharge all high-voltage

capacitors.

Ð Make sure that the device under test is voltage-free.

Capacitors must always be discharged before measurement is

performed.

Interference voltages distort measurement results!

Refer to chapter 5.1.1 regarding testing for the absence of

voltage with the help of the direct voltage measurement.

Ð Set the rotary switch to “ ”.

Ð Connect the (discharged!) device under test to the sockets

with the measurement cables as shown.

Note

The “–” pole of polarized capacitors must be connected to

the “⊥” jack.

Resistors and semiconductor paths connected in parallel to

the capacitor distort measurement results!

COM

Temp

0V !

10.38

–

10 nF ... 1000 μF

Measuring Ranges:

40 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.7 Current Measurement

Notes Regarding Current Measurement

• The multimeter may only be operated with installed batteries or

rechargeable batteries. Dangerous currents are otherwise not

indicated, and the instrument may be damaged.

• Set up the measuring circuit in a mechanically secure fashion,

and secure it against inadvertent breaks. Select conductor

cross-sections and lay out connections such that they do not

overheat.

• An intermittent acoustic signal warns of current greater than

10 A. An continuous acoustic signal warns of current greater

than 16 A.

• The input for the current measuring range is equipped with a

fuse link. Maximum permissible voltage for the measuring

circuit (= rated voltage of the fuse) is 1000 V AC/DC.

Use specified fuses only! The fuse must have a breaking

capacity of at least 30 kA.

• If the fuse for the active current measuring range blows, “FUSE ”

appears at the digital display, and an acoustic signal is

generated at the same time.

• If a fuse should blow, eliminate the cause of overload before

placing the instrument back into service!

• Fuse replacement is described in chapter 9.3.

• Be absolutely certain that the measuring ranges are not

overloaded beyond their allowable capacities. Limit values are

included in chapter 8, “Technical Data”, in the table entitled

“Measuring Functions and Measuring Ranges” in the “Over-

load Capacity” column.

Scope of Functions, Current Measurement, Direct Connection

Scope of Functions, Current Measurement via Clip-On Current Sensor

Function METRAHIT⏐

X-

TRA /

UTDOOR

METRAHIT⏐

ECH

METRAHIT⏐

ASE

A AC / Hz ~ 100 μA

1/10/100 mA

1 A / 10 (16) A

10/100 mA

1 A / 10 (16) A

—

A AC+DC TRMS

100 μA

1/10/100 mA

1A / 10 (16) A

10/100 mA

1A / 10 (16) A

1 A / 10 (16) A

—

A DC 100 μA

1/10/100 mA

1A / 10 (16) A

10/100 mA

1A / 10 (16) A

1 A / 10 (16) A

—

1000 V fuse

•••—

Function METRAHIT⏐

X-

TRA /

OUTDOOR

METRAHIT⏐

ECH

METRAHIT⏐

ASE

Transformation

Factor

— • — •

A AC / Hz

— • — •

A AC+DC

— • — •

A DC

— • — •

Hz (A AC)

... 30 kHz ... 30 kHz ... 30 kHz ... 30 kHz

GMC-I Messtechnik GmbH 41

V/Hz, Ω, Temperature, and A/Hz Measurements

5.7.1 Direct and Pulsating Current Measurement, Direct Connection,

A DC and A (DC+AC)

(METRAHIT⏐X-

TRA⏐OUTDOOR⏐TECH⏐PRO only)

Ð First disconnect supply power from the measuring circuit or

the power consumer (1), and discharge any capacitors.

Ð In accordance with the current to be measured, turn the rotary

switch to A or A .

Ð Select the current type appropriate for the measured quantity

by briefly pressing the FUNC | ENTER multifunction key. Each

time the key is pressed, the instrument is switched back and

forth between A DC and A (DC + AC)

TRMS

, which is indicated

by means of an acoustic signal. The current type is indicated at

the LCD by means of the DC or the (DC+AC)

TRMS

symbol.

Ð Safely connect the measuring instrument (without contact

resistance) in series to the power consumer (2) as shown.

Ð Switch supply power to the measuring circuit back on (3).

Ð Read the display. Make a note of the measured value if the

instrument is not being operated in the memory mode or the

transmission mode.

Ð Disconnect supply power from the measuring circuit or the

power consumer (1) once again, and discharge any

capacitors.

Ð Remove the test probes from the measuring point and return

the measuring circuit to its normal condition.

COM mA A

Temp

I > 10 A

003.50

TRMS

I > 16 A

Current

Measuring Ranges:

Current measurement

may only be performed

with installed batteries!

FUNC

ENTER

METRAHIT⏐X-TRA/OUTDOOR

METRAHIT⏐PRO

1 A / 10 A (16 A max. 30 s)

100 μA / 1 mA

10 mA / 100 mA

1 A / 10 A (16 A max. 30 s)

METRAHIT⏐TECH

10 mA / 100 mA

1 A / 10 A (16 A max. 30 s)

42 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.7.2 Alternating Current and Frequency Measurement,

Direct Connection, A AC and Hz

(METRAHIT⏐X-TRA⏐OUTDOOR⏐TECH⏐PRO only)

Ð First disconnect supply power from the measuring circuit or

the power consumer (1), and discharge any capacitors.

Ð In accordance with the current or frequency to be measured,

turn the rotary switch to A~ or Hz.

Ð Select the desired measured quantity by briefly pressing the

FUNC | ENTER multifunction key. Each time the key is pressed,

TRMS

and Hz are alternately selected, and

switching is acknowledged with an acoustic signal.

Ð Safely connect the measuring instrument (without contact

resistance) in series to the power consumer as shown.

Ð Switch supply power to the measuring circuit back on (3).

Ð Read the display. Make a note of the measured value if the

instrument is not being operated in the memory mode or the

transmission mode.

Ð Disconnect supply power from the measuring circuit or the

power consumer (1) once again, and discharge any

capacitors.

Ð Remove the test probes from the measuring point and return

the measuring circuit to its normal condition.

COM mA A

Temp

003.50

TRMS

050.10

I > 10 A

I > 16 A

Current measurement

may only be performed

with installed batteries!

Measuring Ranges:

Current

FUNC

ENTER

METRAHIT⏐X-TRA/OUTDOOR

METRAHIT⏐PRO

1 A / 10 A (16 A max. 30 s)

100 μA / 1 mA

10 mA / 100 mA

1 A / 10 A (16 A max. 30 s)

METRAHIT⏐T

ECH

10 mA / 100 mA

1 A / 10 A (16 A max. 30 s)

GMC-I Messtechnik GmbH 43

V/Hz, Ω, Temperature, and A/Hz Measurements

5.7.3 Direct and Pulsating Current Measurement with Clip-On Current Sen-

sor, A DC and A (DC+AC) (METRA

HIT

⏐

ECH

and METRA

HIT

⏐

ASE

only)

Transformer Output, Voltage/Current

When a clip-on current sensor is connected to the multimeter

(METRAHIT⏐T

ECH: V input, METRAHIT⏐BASE: V input), all current

displays appear with the correct value in accordance with the se-

lected transformation factor.

The only prerequisite is that the current

sensor is equipped with at least one of the below listed transformation

factors, and that the factor has been previously selected in the following

menu (

≠

0FF

), see also chapter 6.4.

Current Clip Setup Menu

1nFo

 ...  SET rAtE  ...  CLIP

1 / 10/100/1000 / 0ff 

Maximum allowable operating voltage is equal to the current

transformer’s nominal voltage. When reading the measured value,

additional error resulting from the clip-on current sensor must also

be taken into consideration.

(default setting:

METRAHIT⏐TECH: OFF, METRAHIT⏐BASE: 1:1000)

Trans. Factors

CL IP

Measuring Ranges DMM Clip Types

100 mV 1 V 10 V

1:1

1 mV / 1 mA

100.00 mA 1.0000 A 10.000 A WZ12C

1:10

1m V / 10 mA

1.0000 A 10.000 A 100.00 A

WZ12B, Z201A/B,

METRAFLEX

1:100

1m V / 100 mA

10.000 A 100.00 A 1000.0 A

Z202A/B,

METRAFLEX

1:1000

1 mV / 1 A

100.00 A 1000.0 A (10000.0 A)

Z202A/B, Z203A/B,

WZ12C,

METRAFLEX

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

COM

Temp

Current

003

1:1000

003

1:1000

TRMS

FUNC

ENTER

= 9 M

METRAHIT⏐TECH

COM

Temp

Current

~ 1 M

METRAHIT⏐BASE

METRAHIT⏐TECH

44 GMC-I Messtechnik GmbH

V/Hz, Ω, Temperature, and A/Hz Measurements

5.7.4 Alternating Current Measurement with Clip-On Current Sensor,

A AC and Hz (METRAHIT⏐T

ECH and METRAHIT⏐BASE only)

Transformer Output, Voltage/Current

When a clip-on current sensor is connected to the multimeter

(METRAHIT⏐T

ECH: V input, METRAHIT⏐BASE: V input), all current

displays appear with the correct value in accordance with the se-

lected transformation factor.

The only prerequisite is that the current

sensor is equipped with at least one of the below listed transformation

factors, and that the factor has been previously selected in the following

menu (

≠

0FF

), see also chapter 6.4.

Current Clip Setup Menu

1nFo

 ...  SET rAtE  ...  CLIP

1 / 10/100/1000 / 0ff



Maximum allowable operating voltage is equal to the current

transformer’s nominal voltage. When reading the measured value,

additional error resulting from the clip-on current sensor must also

be taken into consideration.

(default setting:

METRAHIT⏐TECH: OFF, METRAHIT⏐BASE: 1:1000)

Trans. Factors

CL IP

Measuring Ranges DMM Clip Types

100 mV 1 V 10 V

1:1

1 mV / 1 mA

100.00 mA 1.0000 A 10.000 A WZ12C

1:10

1m V / 10 mA

1.0000 A 10.000 A 100.00 A

WZ12B, Z201A/B,

METRAFLEX

1:100

1m V / 100 mA

10.000 A 100.00 A 1000.0 A

Z202A/B,

METRAFLEX

1:1000

1 mV / 1 A

100.00 A 1000.0 A (10000.0 A)

Z202A/B, Z203A/B

WZ12C,

METRAFLEX

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

003.50

TRMS

1:1000

050.10

1:1000

FUNC

ENTER

COM

Temp

Current

~ 1 M

METRAHIT⏐BASE

COM

Temp

Current

= 1 M

Ω/

9 M

METRAHIT⏐TECH

METRAHIT⏐BASE

METRAHIT⏐TECH

1MΩ

1kHz

= 1 M

= 9 M

GMC-I Messtechnik GmbH 45

V/Hz, Ω, Temperature, and A/Hz Measurements

5.7.5

Direct, Pulsating and Current Measurement

with Clip-On Current

Transformer A DC, A (DC+AC), A AC and Hz (METRAHIT⏐T

ECH only)

Transformer Output, Current/Current

When a clip-on current transformer is connected to the multimeter

(METRAHIT⏐T

ECH: mA/A input), all current displays appear with

the correct value in accordance with the selected transformation

factor. The only prerequisite is that the current transformer is

equipped with at least one of the below listed transformation fac-

tors, and that the factor has been previously selected in the fol-

lowing menu

(

≠

0FF

)

, see also chapter 6.4.

Current Clip Setup Menu

1nFo

 ...  SET rAtE  ...  CLIP

1 / 10/100/1000 / 0ff



(default setting:

METRAHIT⏐TECH: OFF)

Trans. Factors

CL IP

Measuring Ranges DMM Clip Types

100 mA 1 A 10 A

1:1

1mA/1mA

100,00 mA 1,0000 A 10,000 A

1:10

1mA/10mA

1,0000 A 10,000 A 100,00 A

1:100

1mA/100mA

10,000 A 100,00 A 1000,0 A

1:1000

1 mA/1 A

100,00 A 1000,0 A (10000,0 A)

WZ12A, WZ12D,

WZ11A, Z3511,

Z3512, Z3514

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

COM

Temp

Current

003

1:1000

003

1:1000

TRMS

FUNC

ENTER

≤

METRAHIT⏐TECH

003.50

TRMS

050.10

FUNC

ENTER

46 GMC-I Messtechnik GmbH

Device and Measuring Parameters

6 Device and Measuring Parameters

The instrument’s “SET ” mode (menu mode) makes it possible to

set operating and measuring parameters, query information and

activate the interface.

Ð The menu mode is accessed by pressing the MEASURE | SETUP

key, assuming that the instrument is switched on and set to

“Measure” (measuring mode operation).

“1nFo ” appears at the display.

Ð The main menus, i.e. the “SET ” and “tEMP ” menus, as well as

the “SEnd ” and “StorE ” menus included with the

METRAHIT⏐X-

TRA⏐OUTDOOR, are accessed, and the display is

returned to “1nFo” by activating the

  keys (in any

direction).

Ð After selecting the desired main menu, sub-menus are

accessed by pressing the FUNC | ENTER key.

Ð The desired parameter is selected by repeatedly pressing the

 or  key.

Ð In order to check or change a parameter, acknowledge it with

the FUNC | ENTER key.

Ð The

  keys can be used to position the cursor at the entry

position.

The desired value is selected with the help of the

 keys.

Ð Changes can only be accepted with the FUNC | ENTER key.

Ð You can return to the sub-menu without making any changes

by pushing the ZERO | ESC key, and to the main menu by press-

ing the same key once again etc.

Ð You can switch to the measuring mode from any menu level by

pressing the FUNC | ENTER key.

After repeatedly pressing the MEASURE | SETUP key (without first

turning the multimeter off), you can return to the last selected

menu or parameter from the measuring mode.

Example: Setting Time

1nFo

 ...  set rAte  ...  t iME

10:24 (hh:mm)

 

Setting hours and minutes:

 

Advance to desired entry position.

 Change the setting, the entry position blinks.

Press and hold the key

to change the setting rapidly.

The new time setting is activated after

acknowledgement.

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

GMC-I Messtechnik GmbH 47

Device and Measuring Parameters

6.1 Paths to the Various Parameters 6.2 List of All Parameters

bAtt:

VerSion

1tEMP:

dAtE:

t iME:

0CCvP: *

1nFo

tEMPSEnd

* SET StorE *

* METRAHIT⏐X-

TRA⏐OUTDOOR only

** METRAHIT⏐B

ASE only

StArt

StoP

000.0

CLEAr

StArt/

StoP

Sub-Menus / Parameters ↓

rAtE *

0.diSP

.diSP

APoFF

bEEP

irStb

Addr *

dAtE

tiME

CLiP **

°C

°F

Main Menus →

Query Set Set Set Set

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

1nfo

MEASURE

SETUP

020

TRMS

Selection

FUNC

ENTER

Selection

FUNC

ENTER

Selection

FUNC

ENTER

Selection

FUNC

ENTER

Parameter X

TRA

ECH

ASE

Page: Header

0.diSP ••••48: 0.diSP – show/hide leading zeros

Addr

• ———

53: Configuring Interface Parameters

A.diSP ••••49: A.diSP – analog display: select display mode

APoFF

••••

49: APoFF – specified time for automatic shutdown

and continuous ON

bAtt

••••

48: bAtt – query battery voltage

bEEP

••••

49: bEEP – set the limit value for continuity testing

CLEAr

• ———

23: Measurement Data Recording (METRAHIT⏐X-

TRA⏐OUTDOOR only)

CLIP

— • — •

43:

Direct and Pulsating Current Measurement with

Clip-On Current Sensor, A DC and A (DC+AC)

(

METRAHIT

⏐

ECH

and

METRAHIT

⏐

ASE

only)

dAtE

••••

48: dAtE – query date, 50: dAtE – enter date

EMpty

• ———

23: Measurement Data Recording (METRAHIT⏐X-

TRA⏐OUTDOOR only)

1nfo

••••

48: Querying Parameters – InFo Menu (as moving letters)

irStb

• ———

53: Configuring Interface Parameters

1tEMP

••••

48: ItEMP – query reference temperature

0CCvP

• ———

23: Measurement Data Recording (METRAHIT

⏐

X-

TRA

⏐

DOOR

only)

rAtE

• ———

48: rAtE – set the sampling rate (METRAHIT

⏐

X-

TRA

⏐

DOOR

only)

SEnd

• ———

52: Activating the Interface

SET

••••

48: Entering Parameters – SETUP Menu

StArt

• ———

23: Measurement Data Recording (METRAHIT⏐X-

TRA⏐OUTDOOR only)

StoP

• ———

store

• ———

tEMP

••••

37: Temperature Measurement

t iME

••••

48: tiME – query time, 50: tiME – set time

vErSion

••••

48: vErSion – query firmware version

48 GMC-I Messtechnik GmbH

Device and Measuring Parameters

6.3 Querying Parameters – InFo Menu (as moving letters)

bAtt – query battery voltage

1nFo bAtt

2.75 V.

vErSion – query firmware version

1nFo bAtt:  vErSion

2.09

ItEMP – query reference temperature

The temperature of the internal reference junction is measured with a

temperature sensor in close proximity to the input sockets.

1nFo bAtt:



...



1tEMP

dAtE – query date

1nFo bAtt:



...



dAtE

05 (DD.MM.YY)

D = day, M = month, Y = year

Date and time must be reentered after replacing the batteries.

tiME – query time

1nFo bAtt



...



t iME

(hh:mm:ss)

h = hours, m = minutes, s = seconds

Date and time must be reentered after replacing the batteries.

OCCUP – query memory occupancy (METRAHIT⏐X-TRA⏐OUTDOOR only)

1nFo bAtt



...



0CCUP

000

6.4 Entering Parameters – SETUP Menu

rAtE – set the sampling rate (METRAHIT⏐X-TRA⏐OUTDOOR only)

The sampling rate specifies the time interval after which the

respective measured value is transmitted to the interface, or to

measured value memory.

Any one of the following sampling rates can be selected:

00:00.1, 00:00.2, 00:00.5, 00:01.0, 00:02.0, 00:05.0

[h:mm:ss.t] (h = hours, m = minutes, s = sec.,

t = tenths of a sec.

)

0:00:10, 0:00:20, 0:00:30, 0:00:40, 0:00:50, 0:01:00, 0:02:00,

0:05:00, 0:10:00, 0:20:00, 0:30:00, 0:40:00, 0:50:00, 1:00:00,

2:00:00, 3:00:00, 4:00:00, 5:00:00, 6:00:00, 7:00:00, 8:00:00,

9:00:00

Setting the Sampling Rate

1nFo



...



SET rAtE

00:00.1 ... 00:00.5 ... 9:00:00 

(00:00.5 = 0.5 seconds = default value)

0.diSP – show/hide leading zeros

This parameter determines whether or not leading zeros will

appear in the measured value display.

1nFo



...



SET rAtE  ...  0.diSP

0000.0 : with leading zeros (default setting)

0.0 : leading zeros suppressed



MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

GMC-I Messtechnik GmbH 49

Device and Measuring Parameters

A.diSP – analog display: select display mode

One of two different display modes can be selected for the

analog display:

• bArG: bar graph

• Point: pointer

1nFo

 ...  SET rAtE  ...  A.diSP

bArG / Point



(bArG = default value)

APoFF – specified time for automatic shutdown and continuous ON

The instrument is switched off automatically if the measured value

remains unchanged for a long period of time, and if none of the

keys or the rotary switch have been activated before the specified

time “APoFF ” (entered in minutes) has elapsed.

If the on setting is selected, the multimeter is set to continuous

operation and

ON appears in the display to the right of the battery

symbol. In this case, the multimeter can only be switched off

manually. The “on ” setting can only be cancelled by changing the

respective parameter, and not by switching the instrument off.

1nFo

 ...  SET rAtE  ...  APoFF

10 ... 59 min on



(10 minutes = default setting)

bEEP – set the limit value for continuity testing

1nFo

 ...  SET rAtE  ...  bEEP

1, 10, 20, 30, 40, 90 Ω 

(10 Ω = default setting)

irStb – status of the infrared receiver in the stand-by mode

(METRAHIT⏐X-

TRA⏐OUTDOOR only)

See chapter 7.2 on page 53 regarding settings.

Addr – select device address (METRAHIT⏐X-TRA⏐OUTDOOR only

See chapter 7.2 on page 53.

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

50 GMC-I Messtechnik GmbH

Device and Measuring Parameters

dAtE – enter date

Entering the current date makes it possible to acquire measured

values in real-time.

1nFo

 ...  SET rAtE  ...  dAtE

31.12 (DD: day . MM: month)

 

2005 (YYYY: year)

 

Date and time must be reentered after replacing the batteries.

tiME – set time

Entering the correct time makes it possible to acquire measured

values in real-time.

1nFo  ...  SET rAtE  ...  t iME

10:24 (hh:mm)  

Date and time must be reentered after replacing the batteries.

CLIP – set transformation factor (METRAHIT⏐BASE only)

See chapter 5.7.3 ff.

6.5 Default Settings

Previously entered changes can be undone, and the default

settings can be reactivated. This may be advisable under the

following circumstances:

• After the occurrence of software or hardware errors

• If you are under the impression that the multimeter does not

work correctly

Ð Disconnect the device from the measuring circuit.

Ð Remove the batteries temporarily (see also chapter 9.2).

Ð Simultaneously press and hold

the and keys,

and reinsert the batteries at the same time.

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

ZERO

ESC

ON / OFF

LIGHT

GMC-I Messtechnik GmbH 51

Device and Measuring Parameters

52 GMC-I Messtechnik GmbH

Interface Operation

7 Interface Operation (METRAHIT⏐X-TRA⏐OUTDOOR only)

The METRAHIT⏐X-TRA⏐OUTDOOR is equipped with an infrared inter-

face for the transmission of measurement data to a PC. Measured

data are optically transferred through the instrument housing by

means of infrared light to an interface adapter (accessory), which

attached to the multimeter. The adapter’s USB interface allows for

the establishment of a connection to the PC via an interface cable.

Beyond this, commands and parameters can be transmitted from

the PC to the multimeter as well. The following functions can be

executed:

• Configuration and read-out of measuring parameters

• Measuring function and measuring range selection

• Start measurements

• Read out stored measured values

7.1 Activating the Interface

The interface is automatically activated for receiving operation

(multimeter receives data from the PC) as soon as the interface is

addressed by the PC, assuming that the “irStb ” parameter has

been set to “ir on ” (see chapter 7.2), or the instrument is already

switched on (the first command wakes up the multimeter, but

does not yet execute any further commands).

The “continuous transmission” operating mode is selected

manually as described below. In this operating mode, the

instrument continuously transmits measurement data to the PC

via the interface adapter, which can then be displayed with the

help of a terminal program.

Starting Continuous Transmission Operation with Menu Functions

1nFo

 ...  SEnd StArt send

The symbol blinks at the display in order to indicate interface

operation.

Stopping Continuous Transmission Operation with Menu Functions

1nFo

 ...  SEnd send

stop send

The symbol is cleared from the display.

Automatic Activation and Deactivation of Transmission Mode Operation

If the sampling rate is 10 seconds or longer, the display is

switched off automatically between samples in order to prolong

battery service life. The only exception is when the multimeter is

set to continuous operation.

As soon as an event occurs, the display is automatically switched

back on.

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

GMC-I Messtechnik GmbH 53

Interface Operation

7.2 Configuring Interface Parameters

irStb – status of the infrared receiver in the stand-by mode

There are two possible switching statuses for the infrared

interface when the multimeter is switched off:

ir on: IR appears at the display and the infrared interface is

active, i.e. signals such as making commands can be

received, and power is consumed even though the

multimeter is switched off.

ir oFF: IR does not appear at the display and the infrared

interface is switched off, signals cannot be received.

1nFo

 ...  SET rAtE  ...  irStb

ir on / ir oFF 

(irstb = ir oFF = default setting)

Addr – Address

If several multimeters are connected to the PC via an interface

adapter, a separate address can be assigned to each instrument.

Address number 1 should be selected for the first instrument, 2

should be assigned to the second and so forth.

1nFo

 ...  SET rAtE  ...  Addr

00 ... 01 ... 15



(15 = default setting)

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

54 GMC-I Messtechnik GmbH

Technical Data

8 Technical Data

Values of less than 200 digits are suppressed in the mV range.

At 0 ° ... + 40 °C

Display up to max. 5.1 V, “OL” in excess of 5.1 V.

Residual value deviates within 1 ... 30 d from the zero point due to TRMS converter

when probe tips are short-circuited. See frequency influence on page 56.

Switch-off time/Cool-down time > 30 min and T

≤ 40 °C

Meas.

Function

Measuring Range

Resolution at Upper

Range Limit

Input Impedance

Intrinsic Errorunder Reference Conditions

Overload Capacity

±(... % rdg. + ... d) ±(... % rdg. + ... d) ±(... % rdg. + ... d)

11,999 1199

~ /

Value Time

100 mV 10 μV ≥ 9MΩ≥ 9MΩ // < 50 pF 0.09 + 5 with ZERO 1 + 30 (> 300 d)

1 + 30 (> 300 d)

1000 V

RMS

sine

continuous

1 V 100 μV ≥ 9MΩ≥ 9MΩ // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

10 V 1 mV ≥ 9MΩ≥ 9MΩ // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

100 V 10 mV ≥ 9MΩ≥ 9MΩ // < 50 pF 0.05 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

1000 V 100 mV ≥ 9MΩ≥ 9MΩ // < 50 pF 0.09 + 3 0.5 + 9 (> 200 d) 1 + 30 (> 300 d)

Voltage drop, approx. at upper range limit

X-

TRA

OUTDOOR

PRO

100 μA 10 nA 12 mV 12 mV 0.5 + 5 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

0.2 A

continuous

1 mA 100 nA 120 mV 120 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

10 mA 1 μA 16 mV 16 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

100 mA 10 μA 160 mV 160 mV 0.5 + 3 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

1 A 100 μA 40 mV 40 mV 0.9 + 10 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

10 A: ≤ 5 min

16 A: ≤ 30 s

10 A 1 mA 600 mV 600 mV 0.9 + 10 1.5 + 10 (> 200 d) 1.5 + 30 (> 200 d)

ECH

10 mA 1 μA 16 mV 16 mV 0.1 + 5 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)

0.2 A

continuous

100 mA 10 μA 160 mV 160 mV 0.1 + 5 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)

1 A 100 μA 40 mV 40 mV 0.9 + 10 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)

10 A: ≤ 5 min

16 A: ≤ 30 s

10 A 1 mA 600 mV 600 mV 0.9 + 10 1 + 10 (> 200 d) 1.5 + 30 (> 200 d)

Factor: 1:1/10/100/1000

Input Input impedance

ECH

0.1/1/10/100 A 100 mA

Current measuring input

(A socket)

Specification see current ranges A (T

ECH)

Measuring input

1/10/100/1000 A 1 A 0.2 A continuous

10 A: 5 min

10/100 / 1 00 0 / 10000 A

10 A plus clip-on current sensor error

ECH

BASE

0.1/1/10/100 A 100 mV

Voltage measurement input

ECH: (V socket) Ri =1 MΩ/9 MΩ

ASE: ( V socket) Ri ~1 MΩ

±(0.5% rdg. + 10 d)

±(1% rdg. + 30 d)

> 300 d

±(1% rdg. + 30 d)

> 300 d

Measurement input

1/10/100/1000 A 1 V

1000 V RMS Max. 10 s

10/100 / 1 00 0 / 10000 A

10 V Plus clip-on current sensor error

Open-circuit voltage

Meas. curr. @ range limit

±(... % rdg. + ... d)

100 Ω 10 mΩ < 1.4 V Approx. 300 μA 0.2 + 5

with active ZERO function

1000 V

RMS

sine

Max. 10 s

1kΩ 100 mΩ < 1.4 V Approx. 250 μA 0.2 + 5

10 kΩ 1 Ω < 1.4 V Approx. 100 μA 0.2 + 5

100 kΩ 10 Ω < 1.4 V Approx. 12 μA 0.2 + 5

1MΩ 100 Ω < 1.4 V Approx. 1.2 μA 0.2 + 5

10 MΩ 1kΩ < 1.4 V Approx. 125 nA 0.5 + 10

40 MΩ 10 kΩ < 1.4 V Approx. 20 nA 2.0 + 10

100 Ω —0.1Ω Approx. 8 V Approx. 1 mA const. 3 + 5

5.1 V

— 1 mV Approx. 8 V Approx. 1 mA const. 0.5 + 3

TRA

UTDOOR

PRO

TECH

GMC-I Messtechnik GmbH 55

Technical Data

At 0 ° ... + 40 °C

Applies to measurements at film capacitors

Lowest measurable frequency for sinusoidal measuring signals symmetrical to the zero point

Overload capacity of the voltage measurement input:

power limiting: frequency x voltage, max. 3 x 10

V x Hz for U > 100 V

Overload capacity of the current measurement input:

See current measuring ranges for maximum current values.

10)

Input sensitivity, sinusoidal signal, 10% to 100% of the measuring range

11)

Plus sensor deviation

Key: R = meas. range, d = digit(s), rdg. = measured value (reading)

Meas.

Function

Measuring Range

Resolution at Upper

Range Limit

Input impedance

Intrinsic Error under Reference Conditions

Overload Capacity

11,999 1199 ~ / Value Time

Discharge resistance U

0 max

±(... % rdg. + ... d)

X-

TRA

OUTDOOR

TECH

10 nF 10 pF 10 MΩ 0.7 V 1 + 6

with ZERO function active

1000 V

RMS

Sine

Max. 10 s

100 nF 100 pF 1 MΩ 0.7 V 1 + 6

1 μF 1 nF 100 kΩ 0.7 V 1 + 6

10 μF10nF12kΩ 0.7 V 1 + 6

100 μF 100 nF 3 kΩ 0.7 V 5 + 6

1000 μF1μF3kΩ 0.7 V 5 + 6

min

±(... % rdg. + ... d)

Hz (V)

Hz (A)

Hz (A )

100.00 Hz 0.01 Hz

1Hz

0.05 + 3

10)

Hz (V)

Hz(A )

1000 V

Hz (A):

)

Max. 10 s

1.0000 kHz 0.1 Hz

10.000 kHz 1 Hz

Hz (V)

100.00 kHz 10 Hz 10 Hz

Hz (A)

30.00 kHz 10 Hz 10 Hz

MHz

X-

TRA

OUTDOOR

100 Hz ... 1 MHz

0.01 ...

100 Hz

1 ... 100 Hz 0.05 + 3 > 2 V ... 5 V

1000 V Max. 10 s

X-

TRA

OUTDOOR

2.0 ... 98% — 0.01% 100 Hz ... 1 kHz 1 Hz 0.1 R per kHz > 2 V ... 5 V

5.0 ... 95% — 0.01% ... 10 kHz 1 Hz 0.1 R per kHz > 2 V ... 5 V

10... 90% — 0.01% ... 100 kHz 1 Hz 0.1 R per kHz > 2 V ... 5 V

±(... % rdg. + ... d)

°C/°F

Pt100

X-TRA

OUTD.

– 200.0 ...

+850.0 °C

0.1 °C

0.3 + 15

11)

1000 V

DC/AC

RMS

Sine

Max. 10 s

Pt1000

X-TRA

OUTD.

– 150.0 ...

+850.0 °C

0.3 + 15

11)

(NiCr-Ni)

– 250.0 ...

+1372.0 °C

1% + 5 K

11)

56 GMC-I Messtechnik GmbH

Technical Data

Influencing Quantities and Influence Error

With zero balancing

Power limiting: frequency x voltage max. 3 x 10

V x Hz for U > 100 V

The accuracy specification for frequency response is valid within a dis-

play value range of 10% to 100% of the measuring range for both mea-

suring modes with the TRMS converter in the AC and (AC+DC) ranges.

METRAHIT⏐X-TRA⏐OUTDOOR: Frequency response up to 20 kHz,

METRAHIT⏐T

ECH: Frequency response up to 10 kHz,

METRAHIT⏐P

RO: Frequency response up to 10 kHz,

METRAHIT⏐B

ASE: Frequency response up to 1 kHz

Influencing

Quantity

Sphere of

Influence

Measured Quantity /

Measuring Range

Influence Error

(...% rdg. + ... d) / 10 K

Tempe ratu re

0 °C ... +21 °C

and

+25 °C ... +40 °C

V 0.2 + 10

V 0.4 + 10

100 Ω ... 1 MΩ 0.5 + 10

> 1 MΩ 1 + 10

mA/A 0.5 + 10

mA/A 0.8 + 10

10 nF ... 100 μF1 + 5

Hz 0.2 + 10

°C/°F (Pt100/Pt1000) 0.5 + 10

°C/°F thermocouple K 0.2 + 10

Influencing

Quantity

Measuring Quantity

Influence Error

(...% rdg. + ... d)

DATA V, A, Ω, Hz ±10 d

MIN / MAX V, A, Ω, Hz ±30 d

Influencing

Quantity

Meas. Quantity/

Meauring

Range

Sphere of Influence

Intrinsic Error

±( ... % rdg. + ... d)

METRAHIT⏐X-

TRA

METRA

HIT



UTDOOR

METRAHIT⏐TECH

METRAHIT⏐PRO

METRAHIT⏐BASE

Frequency

100.00 mV

> 15 Hz ... 45 Hz 3 + 30 3 + 30

> 65 Hz ... 1 kHz 2 + 30 3 + 30

> 1 kHz ... 10 kHz 3 + 30 —

1.0000 V

...

100.00 V

> 15 Hz ... 45 Hz 2 + 9 3 + 9

> 65 Hz ... 1 kHz 1 + 9 3 + 9

> 1kHz...10/20kHz

3 + 9 —

1000.0 V

> 15 Hz ... 45 Hz 2 + 9 3 + 9

> 65 Hz ... 1 kHz 2 + 9 3 + 9

> 1 kHz ... 10 kHz 3 + 30 —

100.00 μA

...

10.0000 A

> 15 Hz ... 45 Hz

3 + 10 —

> 65 Hz ... 10 kHz

100 mV /

1 V / 10 V

> 65 Hz ... 1 kHz — 3 + 10

GMC-I Messtechnik GmbH 57

Technical Data

Except for sinusoidal waveshape

Reference Conditions

Ambient temperature +23 °C ±2K

Relative humidity 40 ... 75%

Measured qty. frequency 45 ... 65 Hz

Measured qty. waveshape sine

Battery voltage 3 V ±0.1 V

Response Time (after manual range selection)

Internal Clock

Time format TT.MM.JJJJ hh:mm:ss

Resolution 0.1 s

Accuracy ±1 minute per month

Temperature

influence 50 ppm/K

Influencing

Quantity

Sphere of

Influence

Measured Quantity /

Measuring Range

Influence Error

Crest factor CF

1 ... 3

V, A

± 1% rdg.

> 3 ... 5 ± 3% rdg.

Influencing Qty. Sphere of Infl. Measured Quantity Influence Error

Relative

humidity

75%

3 days

instrument off

V, A, Ω, Hz, °C1 x intrinsic error

Influencing

Quantity

Sphere of Influence

Measured Quantity /

Measuring Range

Damping

Common Mode

Interference

Voltage

Interference quantity max. 1000 V V > 120 dB

Interference quantity max. 1000 V

50 Hz ... 60 Hz, sine

1 V , 10 V > 80 dB

100 V > 70 dB

1000 V > 60 dB

Series Mode

Interference

Voltage

Interference quantity: V ,, respective

nominal value of the meas. range,

max. 1000 V , 50 Hz ... 60 Hz, sine

V> 50dB

Interference quantity max. 1000 V V > 110 dB

Measured Quantity /

Measuring Range

Response Time

Digital Display

Measured Quantity Jump Function

V, V

AV , A

1.5 s

From 0 to 80%

of upper range limit value

100 Ω ... 1 MΩ 2s

From ∞ to 50%

of upper range limit value

10/40 MΩ 5s

Continuity < 50 ms

°C (Pt100) max. 3 s

1.5 s

10 nF ... 100 μFmax. 2s

From 0 to 50%

of upper range limit value

1 000 μFmax. 7s

>10 Hz 1.5 s

58 GMC-I Messtechnik GmbH

Technical Data

Data Interface (METRAHIT⏐X-TRA⏐OUTDOOR only)

Type Optical via infrared light through the

housing

Data transmission

(data transfer) Serial, bidirectional (not IrDa compatible)

Protocol Device specific

Baud Rate 38,400 baud

Functions – Select/query measuring functions and

parameters

–

Query/transmit momentary measurement

data

– Read out stored measurement data

The USB X-TRA plug-in interface adapter (see accessories) is

used for adaptation to the PC’s USB port.

Internal Measured Value Storage

(METRAHIT⏐X-

TRA⏐OUTDOOR only)

Memory capacity 4 MBit / 540 kB for approx. 15,400

measured values with time stamp

Power Supply

Battery 2 ea. 1.5 V mignon cell (2 ea. size AA),

alkaline manganese per IEC LR6

(2 ea. 1.2 V NiMH rechargeable battery

also possible)

Service life With alkaline manganese: approx. 200

hours

Battery test Battery capacity display with battery

symbol in 4 segments: .

Querying of momentary battery voltage via

menu function.

Power OFF function The multimeter is switched off

automatically:

– If battery voltage drops to below approx.

1.8 V

– If none of the keys or the rotary switch

are activated for an adjustable duration

(10 to 59 min.), and the multimeter is not

in the continuous operating mode

Power pack connector socket

(METRAHIT⏐X-

TRA⏐OUTDOOR only)

If the NA X-TRA power pack (see

accessories) has been plugged into the

instrument, the batteries are disconnected

automatically.

Rechargeable batteries can only be

recharged externally.

GMC-I Messtechnik GmbH 59

Technical Data

Display

LCD panel (65 mm x 36 mm) with analog and digital display

including unit of measure, type of current and various special

functions

Background illumination

Background illumination is switched off approximately 1 minute

after it has been activated.

Analog

Display LCD scale with bar graph or pointer,

depending upon A.diSP parameter setting

Scaling With 4 division lines each

1 bar/pointer corresponds to 500 digits at

the digital display

Polarity display With automatic switching

Overflow display With the symbol

Measuring rate 40 per second and display refresh

(U and I)

Digital

Display / Char. Height

7-segment characters / 15 mm

Number of places 4½ place 11,999 steps

Overflow display “0L” is displayed for ≥12,000 digits

Polarity display “–” (minus sign) is displayed

if plus pole is connected to “⊥”

Measuring rate 10 measurements per second;

40 per second with Min/Max function

except with capacitance, frequency and

duty cycle measuring functions

Refresh Rate 2 times per sec., every 500 ms

Acoustic Signals

For voltage Intermittent signal at above 1000 V

For current Intermittent signal at above 10 A

Continuous signal at above 16 A

Fuse for METRAHIT⏐X-TRA⏐OUTDOOR⏐TECH⏐PRO

Fuse FF (UR) 10 A/1000 V AC/DC,

10 x 38 mm,

switching capacity:

30 kA at 1000 V AC/DC,

protects the current input socket in the

100 μA to 10 A ranges

Electrical Safety

per IEC 61010-1:2010/VDE 0411-1:2011

Safety class

Measuring category III IV

Operating voltage 1000 V 600 V

Fouling factor

Test voltage

6.7 kV~

60 GMC-I Messtechnik GmbH

Technical Data

Electromagnetic Compatibility (EMC)

Interference emission

EN 61326-1:2006, class B

Interference immunity

EN 61326-1:2006

EN 61326-2-1:2006

Ambient Conditions

Operating

temp. range T

−10 °C ... +50 °C

Storage

temp. range −25 °C ... +70 °C (without batteries)

Relative humidity Max.75%, no condensation allowed

METRAHIT O

UTDOOR only: max. 96 %

Elevation to 2000 m

Deployment

Indoors; outdoors only within specified

ambient conditions

Mechanical Design

Housing Impact resistant plastic (ABS)

Dimensions 200 x 87 x 45 mm

(without protective rubber cover)

Weight Approx. 0.35 kg with batteries

Protection Housing: IP 52

Extension of the

METRA

HIT

 OUTDOOR

Housing: IP 65

Table Excerpt Regarding Significance of the IP Code

IP XY

(1st digit X)

Protection against pene-

tration of solid particles

IP XY

(2nd digit Y)

Protection against

penetration by water

5 Dust protected 2 Dripping (15° inclination)

6 Dust-proof 5 Jet-water

GMC-I Messtechnik GmbH 61

Technical Data

62 GMC-I Messtechnik GmbH

Maintenance – Calibration

9 Maintenance and Calibration

Attention!

Disconnect the instrument from the measuring circuit before

opening the battery compartment lid or fuse cover in order

to replace batteries or fuses!

9.1 Displays – Error Messages

9.2 Batteries

Note

Removing the Batteries During Periods of Non-Use

The integrated quartz movement draws power from the

batteries even when the instrument is switched off. It is

advisable to remove the batteries during long periods of

non-use for this reason (e.g. vacation). This prevents

excessive depletion of the battery, which may result in

damage under unfavorable conditions.

Note

Battery Replacement for METRAHIT⏐X-TRA⏐OUTDOOR

Stored measurement data are lost when the batteries are

replaced. In order to prevent data loss, it is advisable to

backup your data to a PC with the help of METRA⏐V

IEW soft-

ware before replacing the batteries.

The selected operating parameters remain in memory,

although date and time must be reentered.

Battery

The current battery charge level can be queried in the “1nfo”

menu:

1nFo bAtt

2.75 V.

Make sure that no battery leakage has occurred before initial

start-up, as well as after long periods of storage. Continue to

inspect the batteries for leakage at short, regular intervals.

If battery leakage has occurred, carefully and completely clean the

electrolyte from the instrument with a damp cloth, and replace the

batteries before using the instrument.

If the “ ” symbol appears at the display, the batteries should

be replaced as soon as possible. You can continue working with

the instrument, but reduced measuring accuracy may result.

The instrument requires two 1.5 V batteries in accordance with

IEC R 6 or IEC LR 6, or two equivalent rechargeable NiCd

batteries.

Message Function Meaning

FUSE

Current measurement Blown fuse

In all operating modes Battery voltage has fallen below 1.8 V

Measurement Indicates overflow

MEASURE

SETUP

FUNC

ENTER

GMC-I Messtechnik GmbH 63

Maintenance – Calibration

Replacing the Batteries

Attention!

Disconnect the instrument from the measuring circuit before

opening the battery compartment lid in order to replace the

batteries.

Ð Set the instrument face down onto the working surface.

Ð Turn the slotted screw on the lid with the battery symbols

counterclockwise.

Ð Lift off the lid and remove the batteries from the battery

compartment.

Ð Insert two new 1.5 V mignon batteries into the battery

compartment, making sure that the plus and minus poles

match up with the provided polarity symbols.

Ð When replacing the battery compartment lid, insert the side

with the guide hooks first.

Tighten the screw by turning it clockwise.

Ð Please dispose of depleted batteries in accordance with

environmental protection regulations!

9.3 Fuse (METRA

HIT

⏐

X-

TRA

⏐

UTDOOR

, METRA

HIT

⏐

ECH

and

METRA

HIT

⏐

only)

Testing the Fuse

The fuse is tested automatically:

• When the instrument is switched on with the rotary switch in

the A position

• When the instrument is already on and the rotary switch is

turned to the A position

• In the active current measuring range when voltage is applied

If the fuse is blown or has not been inserted, “FuSE” appears at

the digital display. The fuse interrupts the current measuring

ranges. All other measuring ranges remain functional.

Replacing the Fuse

If a fuse should blow, eliminate the cause of overload before

placing the instrument back into service!

Attention!

Disconnect the instrument from the measuring circuit before

opening the fuse cover in order to replace the fuse!

Ð Set the instrument face down onto the working surface.

Ð Turn the slotted screw on the cover with the fuse symbol

counterclockwise.

Ð Lift off the cover and pry the fuse out using the flat side of the

fuse cover.

Ð Insert a new fuse. Make sure that the fuse is centered, i.e.

between the tabs at the sides.

Ð When replacing the fuse cover, insert the side with the guide

hooks first.

Tighten the screw by turning it clockwise.

Ð Dispose of the blown fuse with the trash.

Blown Fuse

fuse

64 GMC-I Messtechnik GmbH

Maintenance – Calibration

Attention!

Use specified fuses only!

If fuses with other blowing characteristics, other current

ratings or other breaking capacities are used, the operator

is placed in danger, and protective diodes, resistors and

other components may be damaged.

The use of repaired fuses or short-circuiting the fuse holder

is prohibited.

Note

Testing the Fuse with the Instrument Switched On

After inserting the fuse with the instrument switched on, the

instrument must be switched off briefly and then switched

back on, or briefly switched to a non-current measuring

range and then back to the “A” measuring range.

If contact is poor or the fuse is blown, FUSE appears at the

display.

9.4 Housing Maintenance

No special maintenance is required for the housing. Keep outside

surfaces clean. Use a slightly dampened cloth for cleaning. Avoid

the use of cleansers, abrasives or solvents.

9.5 Return and Environmentally Sound Disposal

The instrument is a category 9 product (monitoring and control

instrument) in accordance with ElektroG: German electrical and

electronic device law). This device is subject to the RoHS

directive. Furthermore, we make reference to the fact that the cur-

rent status in this regard can be accessed on the Internet at

www.gossenmetrawatt.com by entering the search term WEEE.

We identify our electrical and electronic devices in ac-

cordance with WEEE 2012/19/EU and ElektroG with

the symbol shown at the right per DIN EN 50419.

These devices may not be disposed of with the trash.

Please contact our service department regarding the return of old

devices (see page 4).

If you use batteries or rechargeable batteries in your instrument or

accessories which no longer function properly, they must be duly

disposed of in compliance with the applicable national regula-

tions.

Batteries or rechargeable batteries may contain harmful sub-

stances or heavy metal such as lead (PB), cadmium (CD) or mer-

cury (Hg).

They symbol shown to the right indicates that batteries or

rechargeable batteries may not be disposed of with the

trash, but must be delivered to collection points specially

provided for this purpose.

Pb Cd Hg

GMC-I Messtechnik GmbH 65

Maintenance – Calibration

9.6 Recalibration

The respective measuring task and the stress to which your mea-

suring instrument is subjected affect the ageing of the compo-

nents and may result in deviations from the guaranteed accuracy.

If high measuring accuracy is required and the instrument is fre-

quently used in field applications, combined with transport stress

and great temperature fluctuations, we recommend a relatively

short calibration interval of 1 year. If your measuring instrument is

mainly used in the laboratory and indoors without being exposed

to any major climatic or mechanical stress, a calibration interval of

2-3 years is usually sufficient.

During recalibration* in an accredited calibration laboratory

(DIN EN ISO/IEC 17025) the deviations of your instrument in rela-

tion to traceable standards are measured and documented. The

deviations determined in the process are used for correction of

the readings during subsequent application.

We are pleased to perform DAkkS or factory calibrations for you in

our calibration laboratory. Please visit our website at

www.gossenmetrawatt.com (→ Company → DAkkS Calibration

Center or → FAQs → Calibration questions and answers).

By having your measuring instrument calibrated regularly, you ful-

fill the requirements of a quality management system per

DIN EN ISO 9001.

* Verification of specifications or adjustment services are not part of the

calibration. For products from our factory, however, any necessary ad-

justment is frequently performed and the observance of the relevant

specification is confirmed.

9.7 Manufacturer’s Guarantee

All METRAHIT⏐ digital multimeters and calibration instruments are

guaranteed for a period of 3 years after date of shipment. The

manufacturer’s guarantee covers materials and workmanship.

Damages resulting from use for any other than the intended pur-

pose or operating errors, as well as any and all consequential

damages, are excluded.

The calibration certificate confirms that the product conformed to

the specified technical data at the time of calibration. We guaran-

tee the observance of the specified technical data within the ad-

missible tolerance limits for a period of 12 months from delivery.

66 GMC-I Messtechnik GmbH

Accessories

10 Accessories

10.1 General

The extensive accessories available for our measuring

instruments are checked for compliance with currently valid safety

regulations at regular intervals, and are expanded as required for

new applications. Currently up-to-date accessories which are

suitable for your measuring instrument are listed at the following

web address along with photo, order number, description and,

depending upon the scope of the respective accessory, data

sheet and operating instructions: www.gossenmetrawatt.de

(→ Products → Measuring Technology – Portable →

Multimeters → METRAHIT ... → Accessories).

10.2 Technical Data for Measurement Cables

(included: KS17-2 safety cable set)

Electrical Safety

Ambient Conditions (EN 61010-031)

Tempera tu re –20 °C ... + 50 °C

Relative humidity 50 to 80%

Fouling factor 2

Application KS17-2

Attention!

Please observe the maximum values of the electrical

supply of the device.

In conformity with standard DIN EN 61010-031, mea-

surements in an environment according to measuring

category III and IV may only be performed with the safety

cap applied to the test probe of the measurement cable.

For establishing contact in 4 mm jacks you have to remove the

safety cap by levering out the snap lock of the safety cap with an-

other sharp object (e.g. the second test probe).

10.3 NA X-TRA Power Pack (not included)

Use only the power pack from GMC-I Messtechnik GmbH in

combination with your instrument. This assures operator safety by

means of an extremely well insulated cable, and safe electrical

isolation (nominal secondary ratings: 5 V / 600 mA). Installed

batteries are disconnected electronically if the power pack is

used, and need not be removed from the instrument.

Maximum Rated Voltage 600 V

1000 V

Measuring Category

CAT IV CAT III CAT II

Maximum Rated Current 1 A 1 A 16 A

with safety cap applied

••—

without safety cap applied —

—

•

GMC-I Messtechnik GmbH 67

Accessories

10.4

Interface Accessories for METRA

HIT

⏐

X-

TRA

⏐

UTDOOR

(not included)

USB X-TRA Bidirectional Interface Adapter

This adapter makes it possible to connect STARLINE multimeters

which are equipped with a serial IR interface to the USB port at a

PC. The adapter allows for data transmission

between the multimeter and the PC.

METRAwin 10 PC Analysis Software

METRAwin 10 PC software is a multilingual, measurement data log-

ging program* for recording, visualizing, evaluating and

documenting measured values from METRAHIT⏐ multimeters.

Details on the system requirements are given in the installation

instructions of METRAwin 10/METRAwin 45.

* runs under any IBM compatible Windows operating system

68 GMC-I Messtechnik GmbH

Index

11 Index

Numerics

0.diSP ................................................................... 48

A.diSP ................................................................... 49

Addr ...................................................................... 53

APoFF ................................................................... 49

Automatic Shutdown

Disabling

.......................................................17

Specifying a Time .........................................17

AUTO-Range Function ......................................... 18

bAtt ....................................................................... 48

Batteries

Charge Level .................................................62

Charging Level ..............................................13

Periods of Non-Use ......................................62

Replacement .................................................63

bEEP ..................................................................... 49

Cable Resistance ................................................. 38

Capacitance Measurement ................................. 39

Clear Memory ....................................................... 24

Clip-On Current Sensor ................................. 43, 44

Clip-On Current Transformer .............................. 45

Continuity Test ..................................................... 35

Current Measurement

Notes .............................................................40

Scope of Functions .......................................40

dAtE ................................................................. 48, 50

Default Settings ....................................................50

Diode Test ............................................................. 36

Display Illumination ..............................................16

Duty Cycle Measurement .....................................33

Error Messages ....................................................62

Fuse

Characteristic Values ....................................59

Housing Maintenance .......................................... 64

Interfaces

Accessories ...................................................67

States ............................................................13

irStb ....................................................................... 53

itEMP .....................................................................48

Manufacturer’s Guarantee ................................... 65

Measured Value Storage

DATA Function ..............................................21

Min-Max Values ............................................22

Measurement Cables ........................................... 66

Measuring Category

Characteristic Values

....................................59

Significance .....................................................8

Measuring Range Selection

Automatic

...................................................... 18

Manual .......................................................... 18

Memory

Ending Recording ......................................... 24

Querying Occupancy .................................... 24

Start Recording ............................................. 23

OCCUP ...................................................................48

Overview

Keys and Connections .................................. 12

Parameters ................................................... 47

Power Pack

Accessories .................................................. 66

Connector Socket Position ........................... 15

Initial Start-Up ............................................... 16

Product Support ......................................................3

Product Support Hotline .........................................3

rAtE ........................................................................48

Recalibration Service ........................................4, 65

Remote ..................................................................37

Repair and Replacement Parts Service .................4

Replacing the Fuse ...............................................63

Resistance Measurement .....................................34

Return of Old Devices ...........................................64

Safety Precautions ..................................................8

Software Enabling ...................................................3

GMC-I Messtechnik GmbH 69

Index

Standard Equipment .............................................. 2

Switching the Instrument On

Manual ..........................................................16

Via PC ............................................................16

Symbols

Digital Display ...............................................13

Instrument .....................................................15

Rotary Switch Positions ................................14

Temperature Measurement

With Resistance Thermometers ...................38

With Thermocouples .....................................37

tiME ................................................................. 48, 50

Training ................................................................... 3

Use for Intended Purpose .................................... 10

vErSion .................................................................. 48

Voltage Comparator ....................................... 29, 31

Voltage Measurement

Notes .............................................................26

Over 1000 V .................................................32

Scope of Functions .......................................26

WEEE Mark ........................................................... 15

Edited in Germany • Subject to change without notice • A pdf version is available on the internet

GMC-I Messtechnik GmbH

Südwestpark 15

90449 Nürnberg •

Germany

Phone +49 911 8602-111

Fax +49 911 8602-777

E-Mail info@gossenmetrawatt.com

www.gossenmetrawatt.com

GMC-I Messtechnik GmbH 71

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