Manual Gossen Metrawatt METRISO INTRO (page 31 of 40) (English)

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METRISO INTRO, BASE, TECH

Insulation, Low Resistance and Voltage Measurement Instrument

3-349-812-03

2/5.15

Operating Instructions

2 GMC-I Messtechnik GmbH

Features Overview of Both Instrument Variants Scope of delivery:

1 Insulation and resistance measuring instrument

1 DAkkS calibration certificate (not METRISO INTRO)

1 Set batteries (8 ea. in battery holder) (not METRISO INTRO)

1Carrying strap

1 Alligator clip (not METRISO INTRO)

1 KS17-4 cable set

1 Condensed operating instructions

1 Supplement Safety Information

1 Detailed operating instructions for download from our website

at www.gossenmetrawatt.com

Battery Compartment Lid and Location of the Fuses

(housing bottom)

METRISO INTRO BASE TECH

Article number M550N M550O M550P

Measurements

INS

U = 1000 V

✓

—

✓

INS

U = 250, 500 V ✓✓✓

INS

U = 50, 100 V — ✓✓

R 10 Ω ... 10 kΩ

—

✓✓

RLO 0.17 Ω ... 10 Ω

✓

✓✓

U 0 ... 1000 V

✓ —

✓

U 0 ... 500 V

✓

✓✓

Display Functions

Backlit display

✓

✓✓

Limit value LED (green/red) for:

Additional acoustic signal, limit value per VDE 0100

INS

LED for dangerous contact voltage

(when switched off)

—

✓✓

LCD symbol for external voltage

✓

✓✓

Battery level display

✓

✓✓

Special Functions

Discharge capacitive devices under test

✓

✓✓

Safety shutdown (UBatt < 8 V)

✓

✓✓

Features

CAT II 1000 V / CAT III 600 V / CAT IV 300 V

✓ —

✓

Measuring category CAT III 600 V / CAT IV 300 V

✓

✓✓

10 MΩ test resistor

—

✓✓

DAkkS calibration certificate

—

✓✓

a b

Replacement Fuse

Fuse

Battery Compartment Lid

GMC-I Messtechnik GmbH 3

Inserting the Battery Holder (side view) Connections (housing top)

Z550A accessory as option: Test probe with a key for triggering measurement, and

an additional key for illuminating the measuring point, including shielded plug-in

connector cable

Battery Holder

Battery Compartment Lid

Battery Holder

Contacts

Battery

Contact

Spring

User Interface

Compartment

COM

SHIELD

Shielded

Cable

Test

Resistor*

Test

Resistor*

Measuring

Test Probe wit h

Control Keys

10 MΩ*

Connector with

Shielded Cable,

Option KS-C (Z541F)

(G500/G100G500/G1000)

Connections

GUARD*

* not METRISO INTRO

4 GMC-I Messtechnik GmbH

User Interface (Example METRISO TECH)

LCD panel

Start measurement

Parameters transfer

Exit

Activate instrument

Continuous

Scroll down:

Red LED: limit value exceeded

Red LED:

– External voltage with device switched off *

Setup menu SEt

Function

selector switch

Guide for

carrying strap

Guide for

carrying strap

M Vk

TRMS

Rlo>10%

MAN

DATA

STORE

ZERO G

ISO

2500V

1000 V

Green LED: limit value adhered to

– SETUP: parameter selection

– V: voltage type selection

– Rlo: polarity reversal

Scroll up:

– SETUP: parameter selection

– V: voltage type selection

– Rlo: polarity reversal

– Test/Measuring voltage with device switched on

for Riso/Rins,

from standby

state

measurement

R & R

– Discharge voltage for Riso/Rins

* not

METRISO INTRO

GMC-I Messtechnik GmbH 5

Digital Display Symbols

1 Battery level indicator

2 Digital display with decimal point and polarity display

3 MAN: Low-resistance measurement:

manual measuring range selection active

4 Rlo: Low-resistance measurement:

special case for automatic low-resistance measure

ment with measurement in both directions of current

flow: both measured values are displayed where

Rlo > 10%

5 Low-resistance measurement:

polarity reversal display (reversed current flow

direction) Ω→ or ←Ω

6 Analog display pointer: bar graph or pointer,

see A.diSP parameter on page 12

Triangle at display: indicates overranging

7 DC/AC: Selected current type

ISO xxxV:

Insulation resistance measurement: selected test voltage

9 Ω V: Unit of measure

10 ZERO:

Cable compensation for low-resistance measurement is

active,

see rLEAd parameter on page 11

11 DATA: Blinks during measurement

Static: measured value is stable

12 Warning regarding dangerous voltage:

U > 50 V AC/DC

13 Acoustic signal (beeper) active for exceeded limit

values, see bEEP parameter on page 12

14 ON Instrument is continuously on

(except with switch in OFF position),

see APOFF parameter on page 12

TRMS

Rlo>10%

MAN

DATA

ZERO

ISO

2500V

1000 V

1 3

4 52

Battery full

Battery OK

Battery weak

Battery (almost) dead, U < 8.5 V

Battery level indicator

6 GMC-I Messtechnik GmbH

Contents Page Contents Page

1 Applications ...............................................................................7

2 Safety Features and Precautions ..............................................8

3 Initial Start-Up ...........................................................................9

3.1 Battery test ......................................................................................9

3.2 Installing or Replacing Batteries .....................................................9

3.3 Query and Set Device Parameters – SETUP Function ...................10

3.3.1 Paths to the Various Parameters ...............................................................10

3.3.2 Querying Parameters – InFo Menu (as moving letters) ..............................11

3.3.3 Entering Parameters – SEt Menu ...............................................................11

3.3.4 Default Settings .........................................................................................13

4 General Operation ....................................................................14

4.1 Switching On, Monitoring and Switching Off ................................14

4.2 Measured Value Display ................................................................15

5 Measuring Insulation Resistance – R

iso

ins

Function ............16

5.1 Connection ....................................................................................16

5.2 Performing the Measurement .......................................................16

5.3 Ending the Measurement ..............................................................17

6 Measuring Direct, Alternating and Pulsating Voltage – V Function .....18

7 Measuring Resistance – k

Function (METRISO BASE/TECH) .......19

8 Measuring Low-Value Resistance (up to 10 Ohm) – R

Function 20

8.1

Measurement with Automatic Polarity Reversal – AUTO Function ........... 21

8.2 Measurement with Manual Polarity Reversal – MAN Function .....22

8.3 Taking Measurement Cables and Extension Cables into Account (up

to 10 Ohm) – ZERO Function (Roffset) ...........................................23

9 Test Resistor for Insulation Measurement for Checking the

Insulation Measuring Instrument ............................................ 23

10 Characteristic Values .............................................................. 24

List of Abbreviations and their Meanings ..................................... 28

12 Maintenance ........................................................................... 28

12.1 Battery and Rechargeable Battery Operation ................................28

12.2 Fuses .............................................................................................29

12.2.1Fuse Link – FUSE Message ........................................................................ 29

12.2.2Electronic Fuse

.....................................................................................................30

12.3 Housing .........................................................................................30

13 Recalibration ........................................................................... 30

14 Appendix ................................................................................. 31

14.1 Sample Connection Layouts for Insulation Resistance Measurement ...... 31

14.2 Attaching the strap to the test instrument ....................................34

14.3 Attaching the Test Probe Holder to the Carrying Strap ................34

14.4 Technical Data for Measurement Cables

(scope of delivery: KS17-4 safety cable set) .................................35

14.5 Optional Accessories (not included) ..............................................36

14.5.1

Application Test Probe for Remote Triggering (Option Z550A) ................................ 36

15 Repair and Replacement Parts Service

Calibration Center and Rental Instrument Service ............................. 37

16 Product Support ...................................................................... 37

GMC-I Messtechnik GmbH 7

1 Applications

These instruments fulfills all requirements of applicable European

and national EC directives. We confirm this with the CE mark. The

relevant declaration of conformity can be obtained from GMC-I

Messtechnik GmbH.

METRISO INTRO/BASE/TECH insulation and resistance measur-

ing instruments allow for quick and efficient testing of protective

measures in accordance with DIN VDE 0100, ÖVE-EN 1 (Austria),

NIV/NIN SEV 1000 (Switzerland), and regulations specific to addi-

tional countries.

The device is equipped with a microprocessor and complies with

IEC/EN 61557 / VDE 0413 regulations:

Part 1: General requirements

Part 2: Insulation resistance measuring instruments

Part 4: Instruments for the measurement of resistance at

earthing conductors, protective conductors and bond-

ing conductors

Part 10: Combined measuring equipment for testing, measuring

or monitoring protective measures

As well as requirements per VDE 0701-0702:

Repair, modification and inspection of electrical appliances.

The test instrument is especially well suited for:

•Systems set-up

• Initial start-up

• Periodic testing

• Troubleshooting in electrical systems

The following measurements and tests can be performed with the

insulation measuring instruments:

• Insulation resistance

• Low-resistance

• Voltage

The following can also be tested by using a shielded measure-

ment cable:

• Floor covering electrostatic discharge capability

8 GMC-I Messtechnik GmbH

2 Safety Features and Precautions

The electronic measuring and test instrument is manufactured

and tested in accordance with safety regulations IEC/EN 61010-1

/ VDE 0411-1 and EN 61557. When used for its intended pur-

pose, safety of the operator, as well as that of the instrument, is

assured.

Read the operating instructions thoroughly and carefully before

using your instrument. Follow all instructions contained therein.

The measuring and test instrument may not be placed into ser-

vice:

• If the battery compartment lid has been removed

• If external damage is apparent

• If connector cable or measuring adapters are damaged

• If the instrument no longer functions flawlessly

• After extraordinary damage due to transport

• After long periods of storage under unfavorable conditions

(e.g. humidity, dust or extreme temperature)

Opening of Equipment / Repair

The equipment may be opened only by authorized service per-

sonnel to ensure the safe and correct operation of the equipment

and to keep the warranty valid.

Even original spare parts may be installed only by authorized ser-

vice personnel.

In case the equipment was opened by unauthorized personnel,

no warranty regarding personal safety, measurement accuracy,

conformity with applicable safety measures or any consequential

damage is granted by the manufacturer.

Meaning of Symbols on the Instrument

Warning concerning a source of danger

(attention: observe documentation!)

Protection class II device

CAT II/ III Device assigned to measuring categories

METRISO INTRO/TECH:

CAT II 1000 V / CAT III 600 V / CAT IV 300 V

METRISO BASE:

CAT III 600 V / CAT IV 300 V

EC mark of conformity

The device and included batteries may not be dis-

posed of with the trash. Further information regarding

the WEEE mark can be accessed on the Internet at

www.gossenmetrawatt.com by entering the search

term “WEEE”.

Calibration Seal (blue seal):

See also “Recalibration” on page 30.

XY123

2013-10

D-K

15080-01-01

Consecutive number

Registration number

Date of calibration (year – month)

Deutsche Akkreditierungsstelle GmbH – calibration lab

GMC-I Messtechnik GmbH 9

3 Initial Start-Up

3.1 Battery test

Four different battery symbols, ranging from fully depleted to fully

charged, continuously indicate the momentary charge level in the

upper left-hand corner of the display

If battery voltage has fallen below the allowable lower

limit, the pictograph shown at the right appears. The

instrument does not function if the batteries have been depleted

excessively, and no display appears.

3.2 Installing or Replacing Batteries

New batteries must be inserted for initial start-up, or if only one

filled segment remains in the battery symbol.

Attention!

Before opening the battery compartment (see page 5 for

location), disconnect the instrument from the measuring

circuit (mains) at all poles.

Eight 1.5 V size AA batteries in accordance with IEC LR 6 are

required for operation of the insulation measuring instrument. Use

new alkaline manganese batteries only.

Rechargeable NiCd or NiMH batteries may also be used. These

can only be recharged externally. We recommend rechargeable

NiMH batteries.

Always replace batteries in complete sets.

Dispose of batteries in an environmentally sound fashion.

Ð Loosen both slotted screws for the battery compartment lid

on the back, and remove the lid.

Ð Remove the battery holder and insert eight 1.5 V size AA bat-

teries with correct polarity in accordance with the symbols.

Attention!

Make sure that all of the batteries are inserted with correct

polarity. If just one battery is inserted with reversed polar-

ity, it will not be recognized by the instrument and may

result in leakage from the batteries.

Ð Push the battery holder into the battery compartment such

that the battery holder’s contacts touch the contact springs at

the bottom of the battery compartment (see drawing on

page 3).

If the battery holder is not inserted as specified, the instrument

cannot be supplied with power.

Ð Replace the battery compartment lid and retighten the

screws.

Attention!

The instrument may only be placed into service if the

battery compartment lid is securely fastened!

10 GMC-I Messtechnik GmbH

3.3 Query and Set Device Parameters

– SETUP Function

Ð Turn the rotary switch to the SETUP position.

info appears at the display.

Ð Press ENTER to query battery voltage or firmware version.

Ð Then select the desired operating parameters with the scroll

keys and acknowledge by pressing the ENTER key.

The desired information is displayed in the scroll mode (moving

letters).

3.3.1 Paths to the Various Parameters

info

SETUP

bAtt:

uers

ion

1nFo SET

Query Parameter ↓

rlead

APoFF

blight

bEEP

A.d

iSP

0..d

iSP

START

ENTER

Acknowledge

START

ENTER

Set Parameter ↓

←

Main Menus →

ESC

stby OFF

START

ENTER

ESC

stby OFF

GMC-I Messtechnik GmbH 11

List of all parameters (alphabetical order)

3.3.2 Querying Parameters – InFo Menu (as moving letters)

bAtt – Query Battery Voltage

1nFo bAtt: 12.05 V.

vErSion – Query Firmware Version

1nFo bAtt:  uErS ion: 1.0.0

3.3.3 Entering Parameters – SEt Menu

rLEAd – Offset Resistance for Low-Resistance Measurement

Measurement cable ohmic resistance can be subtracted from the

measurement results automatically. Offset must be determined

and saved to memory via the rLEAd parameter to this end.

Ð Connect the measurement cables to the + and COM jacks.

Ð Short circuit the two test probes connected to the measure-

ment cables (including extension cables).

Ð Select the rLEAd parameter and acknowledge by pressing the

ENTER key. Select ZERO and acknowledge by pressing the

START key in order to trigger measurement of offset resistance:

1nFo

 SET rlead

zero / Clear 

Low-resistance measurement as described in section 8.1 is con-

ducted in both directions with automatic polarity reversal.

Note

If the test probes are not short circuited, the SHort LEAdS

prompt appears at the display.

The measurement results, i.e. the resistance of the two measure-

ment cables, are subtracted from future low-resistance measure-

ments as an offset value, and ZERO appears in the footer.

After selecting the CLEAr parameter and acknowledging by

pressing the ENTER key, you’re provided with the opportunity of

performing future measurements without using the offset. If this is

the case, ZERO is no longer displayed. In this case, measurement

cable resistance is included in the measurement.

Parame-

ter

Page: Header

iSP

13: 0.diSP – Show/Hide Leading Zeros

iSP

12: A.diSP – Analog Display: Select Display Mode

APoFF

12: APoFF – Specified Time for Automatic Shutdown and Continuous ON

bAtt

11: bAtt – Query Battery Voltage

bEEP

12: bEEP – Acoustic Indication of Exceeded Limit Values

blight

12: bLiGt – Switching LCD Illumination On/Off

Com

For service purposes only

1nfo

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

liled

13: LiLEd – Optical Indication of Limit Value Violations

SET

11: Entering Parameters – SEt Menu

uErS

ion

11: vErSion – Query Firmware Version

rlead

11: rLEAd – Offset Resistance for Low-Resistance Measurement

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

12 GMC-I Messtechnik GmbH

APoFF – Specified Time for Automatic Shutdown and Continuous ON

Shutdown time APoFF can be specified with this parameter. 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 specified

APoFF time (entered in minutes) has elapsed.

The selected on-time has as substantial influence on battery ser-

vice life.

If the on setting is selected, the instrument is set for long-term

measurement and

ON appears at the display to the right of the

battery symbol. In this case, the instrument can only be switched

off manually.

1nFo

 SET rlead  ... ...  APoFF

10 ... 59 min on



(10 minutes = default setting)

bLiGt – Switching LCD Illumination On/Off

Automatic deactivation of display illumination after xx seconds

(after the last time the rotary switch is actuated) can be selected in

order to extend the battery service life. As soon as a new measur-

ing function is selected or started, illumination is reactivated.

When set to oFF, illumination is permanently deactivated.

1nFo

 SET rlead  ... ...  bligt

15 / 30 / 45 / 90 s off 

(15 seconds = default setting)

bEEP – Acoustic Indication of Exceeded Limit Values

This parameter allows you to decide whether or not exceeded

limit values will be indicated acoustically.

on = acoustic indication activated

1nFo

 SET rlead  ...  bEEP

on / off

(on = default setting)

A.diSP – Analog Display: Select Display Mode

One of two different display modes can be selected for the analog

display:

• bArG: bar graph

• Po int: pointer

1nFo



SET rlead  ...  A.d iSP

bArG / Po int



(po int = default setting)

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

GMC-I Messtechnik GmbH 13

0.diSP – Show/Hide Leading Zeros

This parameter determines whether or not leading zeros will

appear in the measured value display.

1nFo



SET rlead  ...  0.diSP

0000.0: with leading zeros (default value)

0.0 : leading zeros suppressed



LiLEd – Optical Indication of Limit Value Violations

This parameter allows you to decide whether or not limit value vio-

lations will be indicated optically.

on = optical indication activated

1nFo

 SET rlead  ... ...  liled

on / off 

(on = default setting)

3.3.4 Default Settings

Previously entered changes can be undone, and default settings

can be restored. This may be advisable under the following cir-

cumstances:

• After the occurrence of software or hardware errors

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

work correctly

Ð Disconnect the device from the measuring circuit.

Ð Briefly remove the batteries (see also section 3.2).

Ð Press and hold the key,

and reinsert the batteries.

After hearing two acoustic signals, the instrument has been

restored to its default settings.

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

START

ENTER

ESC

stby OFF

14 GMC-I Messtechnik GmbH

4 General Operation

The test leads are connected to the “+” and “COM” jacks.

Measuring High-Value Resistance with the KS-C Probe (Option)

When measuring electrostatic

discharge capacity for floor

coverings, the shielded cable

should also be connected to

the COM and SHIELD jacks (KS-C

accessory set, “cable set con-

sisting of measurement cable

and high-resistance measure-

ment cable for measurements

in the GΩ range”, see diagram). Be sure to observe color coding.

For measuring with the Test Probe for Remote Triggering (Option Z550A)

see section 14.5.1.

4.1 Switching On, Monitoring and Switching Off

If battery voltage falls below the allowable limit value (U < 8 V) the

instrument cannot be switched on, or it is immediately switched

off.

Measurement cannot be started in the resistance measuring

ranges in the event of external voltage.

The instrument only switches itself off automatically after comple-

tion of an automatic measuring sequence, and after the predeter-

mined on-time has expired (APOFF parameter in SETUP switch

position, see page 12). On-time is reset to its original value as

defined in the setup menu, as soon as any key or the rotary func-

tion switch is activated.

If the instrument is switched off automatically with the rotary

switch in any position other than OFF, it can be reactivated by

pressing the stby OFF key.

The instrument can be switched off manually by turning the rotary

switch to the OFF position.

Optical Indicators

Prerequisite: The LiLEd parameter is set to on (see page 13).

Function testing should be executed regularly (see following section on testing

LEDs).

KS-C

(Z541F)

LED Status Function – Cause

Limit value indication

– Measured insulation resistance does not violate the limit

value.

– Measured low-resistance Rlo does not violate the limit

value.

Limit value indication

– Measured insulation resistance has fallen short of the se-

lected limit value.

– Measured low-resistance Rlo does has exceeded the per-

missible limit value.

External voltage when on or off (not M550N) and during discharge

Dangerous voltage of greater than 50 V is present at the mea-

surement inputs:

– Initialization of the (insulation) resistance and

low-resistance measurements is disabled.

– The discharging cycle has not yet been completed,

e.g. residual voltage at capacitive devices under test

Test/Measuring voltage with device switched on

Dangerous voltage of greater than 50 V is present at the mea-

surement inputs.

LCD Status Functions

Display

External voltage when off, and during discharge

Dangerous voltage of greater than 50 V is present at the

measurement inputs:

– Initialization of the insulation resistance and

low-resistance measurements is disabled.

– Test voltage applied during insulation measurement

– The discharging cycle has not yet been completed,

e.g. residual voltage at capacitive devices under test

Limit

Green

Limit

Red

GMC-I Messtechnik GmbH 15

Testing the LED which Indicates the Detection of External Voltage

when Switched Off – OFF Switch Position

Ð Apply a voltage of greater than 50 V (+ and COM jacks).

Ð Turn the rotary switch to the V position.

Ð Read the voltage value at the LCD.

Ð Turn the rotary switch to the OFF position.

Test results: If applied voltage is unchanged and the LED which

indicates the detection of external voltage lights up red, the LED is

OK. In this case, the LED reliably indicates external voltage even

when the instrument is switched off. We recommend executing

this test at regular intervals.

Limit Values for Insulation and Low-Resistance Measurements

Acoustic Signals

Limits can also be indicated acoustically by setting the beeP

parameter to on (see page 12).

The loudspeaker symbol appears in this case.

– Low-Resistance Measurement: Signal when R

< 2

(Continuity test)

– Insulation

Measurement

: Signal

when

INS

< limit value

4.2 Measured Value Display

The following appear at the LCD panel:

• Measured value in digital format

• Measured value in analog format as bar graph or pointer

• Unit of measure

Measured values for automatic measuring sequences are

retained at the display as digital values until the next measure-

ment sequence is started, or until automatic shut-off occurs.

If the upper range limit is exceeded, 0L appears at the display,

thus indicating overranging.

If the lower range limit is fallen short of, ur appears at the display,

thus indicating underranging.

Either a bar graph or a pointer can be selected for the analog dis-

play (see AdiSP parameter on page 12).

METRISO INTRO BASE TECH

(M550N

)

(M550O) (M550P)

Limit

ISO

/ R

INS

50 kΩ @ U

ISO

INS

= 50 V —

100 kΩ @ U

ISO

INS

= 100 V —

500 kΩ @ U

ISO

INS

= 250 V

333

1 MΩ @ U

ISO

INS

= 500 V

333

1 MΩ @ U

ISO

INS

= 1000 V

—

Limit R

2 Ω

333

Limit

16 GMC-I Messtechnik GmbH

5 Measuring Insulation Resistance – Riso/Rins Function

5.1 Connection

Note

Checking the Measurement Cables

Before performing insulation measurement, the test

probes on the measurement cables should be short-cir-

cuited in order to assure that the instrument displays a

value very close to 0 Ω (see section 8). This makes it pos-

sible to detect interrupted measurement cables, which

simulate high insulation resistance.

For this instrument,

fuse testing

is only performed after swit-

ching from one insulation resistance measuring range to

another. When further measurements are performed in the

same measuring range, fuse testing is dispensed with for the

sake of a faster test procedure.

Ð Connect the device under test to the + and COM jacks.

Sample connection layouts for insulation resistance measurement are

included in section 14.1. Insulation resistance can only be measured at

voltage-free objects. If mains voltage or external voltage is applied to the

measurement inputs, measurement cannot be started. This is indicated

by the

high-voltage symbol

which appears at the display.

5.2 Performing the Measurement

Note: Condensation must be ruled out when performing measure-

ments at close to the freezing point.

Ð Select the measuring function and the desired test voltage

with the rotary switch, e.g. R

iSO

100V.

The momentarily selected test voltage (nominal voltage) appears

in the bottom right-hand corner of the display.

Start an individual measurement by briefly pressing the

START

key, or

initiate continuous measurement by briefly pressing the

CONTIN

key

COM

ISO

+ COM SHIELD

0V !

ISO

INS

MAN

DATA

ISO

500V

---

START

ENTER

GMC-I Messtechnik GmbH 17

DATA blinks at the display until the measured value has settled in.

Attention!

Do not touch the instrument’s terminal contacts during

insulation resistance measurements!

If nothing has been connected to the terminal contacts, or if a

resistive load component has been connected for measurement,

your body would be exposed to a current of approximately 1 mA

at a voltage of 1000 V. The resulting electrical shock is not life

endangering. However, the noticeable shock may lead to injury

(e.g. resulting from a startled reaction etc.).

Note

Three-Phase Systems

All conductors (L1, L2, L3 and N) must be measured

against PE!

Note

The instrument’s batteries are exposed to excessive

stress during insulation resistance measurement. For this

reason it’s advisable to perform individual rather than

continuous measurements.

5.3 Ending the Measurement

Individual measurement: Measurement is ended automatically as

soon as the measured value has settled in.

Continuous measurement is ended by briefly pressing the ESC key.

In either case, the measured value is retained at the 7-segment

display. When discharging begins, the unit of measure for the bar

graph changes from Ω to V. The length of the bar graph is contin-

uously reduced as voltage at the device under test drops.

Special Case: Capacitive Devices Under Test

Caution!

If measurement is performed at a capacitive object such

as a long cable, it becomes charged with up to approx.

1000 V (test voltage)! Touching such objects is life en-

dangering!

When an insulation resistance measurement has been performed

on a capacitive object it is automatically discharged by the instru-

ment. Contact between the object and the instrument must nev-

ertheless not be interrupted. Do not disconnect until:

•The caution LED (> 50 V) is no longer illuminated

•The high-voltage symbol is no longer displayed

•The analog bar graph has dropped to a value of less than 50 V

MAN

DATA

ISO

500 V

3.25

ISO/INS

MAN

DATA

ISO

500 V

3.25

ISO

INS

= const.

18 GMC-I Messtechnik GmbH

6 Measuring Direct, Alternating and

Pulsating Voltage – V Function

You can measure direct voltage, as well as sinusoidal alternating

voltage with frequencies ranging from 45 to 65 Hz with this test

instrument.

Ð Select the V measuring function with the rotary switch.

Ð Select the desired voltage type with the scroll keys:

direct voltage (DC),

alternating voltage (AC TRMS)

or pulsating voltage (DC + AC TRMS)

Ð Connect the measurement cables to the + and COM jacks.

Ð Contact the measuring point with both test probes.

The measured value is displayed directly (without pressing the

START key) in analog format at the bar graph and in digital format

at the 7-segment display.

Ð After completing the measurement, switch the instrument off

by turning the rotary switch to the OFF position.

The ESC, START and CONTIN. keys are disabled in this case.

Note

Input impedance for the voltage measuring range is

10 MΩ.

Max.

1.2 kV

COM

+ COM SHIELD

TRMS

390

DC / AC

GMC-I Messtechnik GmbH 19

7 Measuring Resistance – kΩ/Ω Function

(METRISO BASE/TECH)

Ð Connect the device under test to the + and COM jacks.

Resistance can only be measured at voltage-free objects. If mains

voltage or external voltage is applied to the measurement inputs,

measurement cannot be started.

This is indicated by the high-voltage symbol which appears at the

display.

Ð Select measuring function kΩ or Ω with the rotary switch.

Ð Start an individual measurement by briefly pressing the START

key, or initiate continuous measurement by briefly pressing

the CONTIN key.

DATA blinks at the display until the measured value has settled in.

kΩ

0V !

DATA

20.4

START

ENTER

20 GMC-I Messtechnik GmbH

8 Measuring Low-Value Resistance (up to 10 Ohm)

– R

Function

According to the regulations, the measurement of low-value resis-

tance at protective conductors, earth conductors or equipotential

bonding must be performed with (automatic) polarity reversal of

the test voltage, or with current flow in one or the other direction.

Attention!

In the measuring function R

, measurements are per-

formed with currents about 200 mA.

Please check before measuring whether your DUT or

your circuit is designed for these high current values.

Connection

Note

Low-value resistance can only be measured at voltage-

free objects.

Ð Connect the device under test to the + and COM jacks.

Ð Select the Rlo measuring function with the rotary switch.

Attention!

The measurement cannot be started until the test probes

are in contact with the device under test.

If voltage is present at the device under test (U > 10 V),

the display is switched to voltage measurement. The dis-

play is not returned to low-resistance measurement until

voltage is less than approximately 8 V. If resistance is

greater than 10 Ω, OL pears at the display.

COM

+ COM SHIELD

R < 10 Ω

0V !

AUTO

Ω→

¬Ω

---

Rlo

START

ENTER

GMC-I Messtechnik GmbH 21

Measurement Types

You can choose one of two different types of measurement:

• Measuring sequence with automatic polarity reversal (reversal

of current flow direction)

• Manual measurement with specified current flow direction

8.1 Measurement with Automatic Polarity Reversal – AUTO Function

Automatic polarity reversal is selected as a default value. MAN

does not appear at the display.

Ð Start measurement in both current flow directions by briefly

pressing the START key for one-time polarity reversal or start

continuous measurement for permanent polarity reversal by

briefly pressing the CONTIN. key.

After the measuring sequence has been started, the instrument performs

measurement with automatic polarity reversal, first with current flow in

one direction (

Ω→

), and then in the other (

←Ω

DATA

blinks at the display

until the measured value has settled in. The larger (worst) measured value

is displayed.

←Ω→

appears at the display.

Difference > 10%

If, during measurement with automatic polarity reversal, the difference

between

Ω→

and

←Ω

is greater than 10%, the resistance values for

both polarities (current flow directions) are displayed separately (sepa-

rated by an underscore).

Rlo>10% appears at the display.

Limit Value Indication

If the measured value is less than or equal to 2 Ω, the Limit LED

lights up green. If the measured value is greater than 2 Ω, the LED

lights up red. As a prerequisite, the LiLED parameter must be set

to “on” (see page 13).

Resistances which do not demonstrate a stable value until after a

“settling in period” should not be measured with automatic polar-

ity reversal. Measurement with automatic polarity reversal may

lead to varying and/or inflated measurement values, and thus to

an ambiguous reading.

Ω→

←Ω

ΔRlo>10%:

←Ω & Ω

→

AUTO: Ω→

DATA

00.1

DATA

00.7

Rlo

07._0.1

Δ Rlo>10%

Ω→

Rlo ←Ω

DATA

Limit

< Limit R

= OK 3

←Ω

ΔRlo ≤ 10% ? ←Ω→

ΔRlo > 10% ? ←Ω & Ω→

22 GMC-I Messtechnik GmbH

8.2 Measurement with Manual Polarity Reversal

– MAN Function

In order to determine whether or not the obtained results are inde-

pendent of current flow direction, measurement can be per-

formed separately for both directions.

Ð Press the

 scroll keys to this end, depending upon the de-

sired current flow direction:

MAN and Ω→ or MAN and ←Ω appear at the display.

Ð Start an individual measurement by briefly pressing the START

key, or initiate continuous measurement by briefly pressing

the CONTIN key.

DATA blinks at the display until the measured value has settled in.

Differing results indicate voltage at the device under test (e.g.

thermovoltage or unit voltages).

Measurement results can be distorted by parallel connected

impedances at load current circuits and by equalizing current,

especially in systems which make use of “overcurrent protection

devices” (previous neutralization) without an isolated protective

conductor. Resistances which change during measurement (e.g.

inductance), or a poor contact, can also cause distorted mea-

surements.

Examples of resistances whose values may change during mea-

surement include:

– Incandescent lamp resistance with changing values caused

by warming due to measuring current

– Resistances with a large inductive component

In order to assure unambiguous measurement results, causes of

error must be located and eliminated.

DATA

ZERO

00.1

DATA

ZERO

00.7

Rlo Ω→

Rlo ←Ω

Ω→

←Ω

MAN: Rlo Ω→

MAN: Rlo ←Ω

MAN

GMC-I Messtechnik GmbH 23

8.3 Taking Measurement Cables and Extension Cables into

Account (up to 10 Ohm) – ZERO Function (Roffset)

Measurement cable ohmic resistance can be subtracted from the

measurement results automatically. Proceed as follows:

Ð With the switch in the SETUP position and the SET menu at the

display, select the rLEAd parameter. Refer to page 11 for fur-

ther instructions.

During future low-resistance measurements for which cable resis-

tance is to be taken into account, ZERO appears at the display

and cable resistance R

Offset

is subtracted. Perform low-resistance

measurement as described above in the preceding pages.

9 Test Resistor for Insulation Measurement for

Checking the Insulation Measuring Instrument

According to section 5.3.1.2 of VDE 0105-100 (EN 50110-1), the

following applies: “These measuring instruments must be tested

before, and if applicable after use.”

The two outermost jacks on the connection panel must be con-

nected to each other internally via a 10 MΩ test resistor to this

end.

The sum of test resistor and cable resistance (for both cables),

including test probes, amounts to 10 MΩ ±5%. This value allows

for quick self-testing.

Ð Connect the measurement cables to the + and COM jacks.

Ð Insert the test probes into the above described jacks.

Ð Select the R

iSO/iNS

measuring function with the rotary switch,

as well as the desired test voltage, e.g. R

iSO

100V.

Ð Press the start key and view the measurement results.

COM

10M

+ COM SHIELD

ISO

INS

10 MΩ

METRISO BASE

METRISO TECH

24 GMC-I Messtechnik GmbH

10 Characteristic Values

Display range up to 600 V

Display range up to 1.2 kV

the indicated accuracy is only achieved with the shielded high-resistance measur-

ing cable KS-C (article no. Z541F)“

does not conform to DIN EN 61557-2

up to 5 Ω

Meas.

Qty.

UiSO Range Measuring Range

Reso-

lution

Open-Circuit

Voltage U

0max

Test

Current

Intrinsic Uncertainty

Measuring

Uncertainty

Overload

Capacity

RINS

BASE/TECH: 50 V

BASE/TECH: 100 V

INTRO: 250 V ... 1000 V

BASE: 250 V / 500 V

TECH: 250 V / 500 V / 1000 V

100 k 10.0 kΩ ... 99.9 kΩ 0.1 k

50 V /100 V:

1.25 U

ISO

250 V /

500 V /

1000 V:

1.1 U

ISO

= 1 mA

≤ 5 mA

±(5% rdg. + 3 d) ±(7% rdg. + 3 d)

METRISO BASE:

600 V AC/DC

TRMS

METRISO INTRO

METRISO TECH:

TRMS

1 M 100 kΩ ... 999 kΩ 1 k

10 M 1.00 MΩ ... 9.99 MΩ 10 k

100 M 10.0 MΩ ... 99.9 MΩ 100 k

1 G 100 MΩ ... 999 MΩ 1 M

10 G 1.00 GΩ ... 9.99 GΩ 10 M

100 G 10.0 GΩ ... 99.9 GΩ 100 M ±(8% rdg. + 3 d)

±(10% rdg. + 3 d)

200 G 100 GΩ ... 199 GΩ 1 G ±(25% rdg. + 5 d)

(50% rdg. + 20 d)

3) 4)

AC/

METRISO BASE

100 V 10.0 V ... 99.9 V 0.1 V

— ±(2.5% rdg. + 3 d) ±(5% rdg. + 3 d)

600 V AC/DC

TRMS

500 V 100 V ... 510 V

1 V

METRISO INTRO

METRISO TECH

100 V 10.0 V ... 99.9 V 0.1 V

— ±(2.5% rdg. + 3 d) ±(5% rdg. + 3 d)

1000 V AC/DC

TRMS

1000 V 100 V ... 999 V

1 V

RLO 10 Ω 0.17 ... 9.99 Ω

0.01

4 V < U0

< 6 V

200 mA ≤ I

≤

260 mA

±(2.5% rdg. + 3 d) ±(5% rdg. + 3 d)

METRISO BASE:

600 V AC/DC

TRMS

METRISO INTRO

METRISO TECH:

1000 V AC/DC TRMS

METRISO BASE

METRISO TECH

Display range as of 01.0

100 Ω 10.0 ... 99.9 Ω 0.1 Ω

max. 15 V

1 mA ≤ I

I ≤ 1,3 mA

±(2.5% rdg. + 3 d) ±(5% rdg. + 3 d)

METRISO BASE:

600 V AC/DC

TRMS

METRISO TECH

1000 V AC/DC TRMS

1 kΩ 100 ... 999 Ω 1 Ω

10 kΩ 1.00 ... 9.99 kΩ 10 Ω

GMC-I Messtechnik GmbH 25

Reference Conditions

Reference temperature+ 23 °C ±3 K

Relative humidity 40 ... 75%

Measured quantity

frequency 45 Hz ... 65 Hz

Measured quantity

waveform Sine, deviation between TRMS and

rectified value < 1%

Battery voltage 9.5 V ±0.1 V

Test resistance 10 MΩ±1%

Electrical Safety

Standard

VDE regulation VDE 0411, part 1, 1994-03

Protection class II

Pollution degree 2

Measuring category METRISO INTRO/TECH:

CAT II 1000 V / CAT III 600 V / CAT IV 300 V

METRISO BASE:

CAT III 600 V / CAT IV 300 V

Fuses

Fuse link FF315mA/1000V, effective in all resis-

tance measuring ranges, 1 additional

replacement fuse in the battery compartment

Elektronic fuse for protecting low-resistance and resis-

tance measurement R

and R

Power Supply

Batteries 8 ea. 1.5 V mignon cells (8 ea. size AA)

(alkaline manganese per IEC LR14)

or 8 rechargeable NiMH batteries (must be

recharged externally)

Nominal range of use 8.5 ... 12 V

Battery test Battery capacity display with battery sym-

bol in 4 segments: .

Querying of momentary battery voltage via

menu function.

Battery saver circuit Automatic shutdown of display illumination

after 15 second s (after the last time the

rotary switch is actuated) can be set via

the blight parameter.

The test instrument is automatically

switched to the standby mode*

when the

measured value remains unchanged and none

of the controls are activated during this time.

* Specified time “APoFF” (entered in minutes)

adjustable via SETUP menu (default setting

approx. 10 min).

Service life For R

ISO

(1000 V / 1 MΩ) and R

with 20

second on-time and 1 measurement each

for a duration of 5 seconds

– With batteries (alkaline manganese):

900 measurements

– With rechargeable batteries (2000 mAh):

850 measurements

Safety shutdown If supply voltage is too low, the instrument

is switched off, or cannot be switched on.

When the rotary switch is set to the OFF

position, the instrument is completely dis-

connected from the batteries (after

approximately 10 seconds).

26 GMC-I Messtechnik GmbH

Electromagnetic Compatibility (EMC)

Interference emission EN 61326-1:2006 class B

Interference immunity EN 61326-1:2006

Ambient Conditions

Accuracy

temperature range 0 ... +40 °C

Operating temperature –10 ... +50 °C

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

Relative humidity Up to 75%

(max. 85% during storage/transport),

no condensation allowed

Elevation Max. 2000 m

Calibration interval 1 year (recommended)

Mechanical Design

Dimensions 225 x 130 x 140 mm

Weight Approx. 1.4 kg with batteries

Protection Housing: IP 52, measurement cables and

connectors: IP 40 per DIN VDE 0470,

part 1 / EN 60529,

housing category 2

Extract from table on the meaning of IP codes

Displays

Digital display With additional bar graph or pointer

depending on selection with a.disp

parameter, backlit (transflective);

leading zeros can be suppressed at the

digital display depending on 0.disp

parameter;

overranging indicated with 0L at display;

dimensions: 65 x 36 mm

Limit LED LED lights up red to indicate an exceeded

limit value

LED lights up green to indicate adherence

to the limit value

LED LED lights up red to indicate:

– the presence of an external voltage

bevore insulation testing

(U > 50 V)

with the device switched on or off

(device switched off not with M550N)

– the presence of the test/measuring voltage

during (insulation) measurement (U > 50 V)

the presence of a residual voltage

after insulation testing (U > 50 V)

with the device switched on or off

at LCD Detection of external voltage at the LCD

with the device switched on where U DC >

50 V and U AC > 40 V (50 Hz) for all mea-

suring functions

IP XY

digit X)

Protection Against

Foreign Object Entry

IP XY

digit Y)

Protection Against

Penetration by Water

2 ≥ 12.5 mm dia. 2 Dripping (at 15° angle)

3 ≥ 2.5 mm dia. 3 Spraying water

4 ≥ 1.0 mm dia. 4 Splashing water

5 Dust protected 5 Jet-water

6 Dust-proof 6 Powerful water jets

GMC-I Messtechnik GmbH 27

Display Values in Consideration of Measuring Uncertainty

Table for determining minimum display values for insulation resis-

tance in consideration of the instrument’s measuring uncertainty.

Table for determining maximum display values for low-value resis-

tance in consideration of the instrument’s measuring uncertainty.

Voltage at Device Under Test During Insulation Resistance

Measurement

Measuring voltage U

at the device under test depending upon its

resistance R

at nominal voltage U

= 100, 250, 500 and 1000 V:

Limit Value

Minimum

Display Value

Limit Value

Minimum

Display Value

020 kΩ 025 kΩ

100 kΩ 111 kΩ 100 MΩ 111 MΩ

200 kΩ 219 kΩ 200 MΩ 219 MΩ

500 kΩ 541 kΩ 500 MΩ 541 MΩ

0.20 MΩ 0.25 MΩ

0.50 MΩ 0.57 MΩ

1.00 MΩ 1.11 MΩ 1.00 GΩ 1.11 GΩ

2.00 MΩ 2.19 MΩ 2.00 GΩ 2.19 GΩ

5.00 MΩ 5.41 MΩ 5.00 GΩ 5.41 GΩ

10.0 MΩ 11.1 MΩ 10.0 GΩ 11.1GΩ

20.0 MΩ 21.9 MΩ 20.0 GΩ 22.6 GΩ

50.0 MΩ 54.1 MΩ 50.0 GΩ 55.9 GΩ

Limit Value

Maximum

Display Value

Limit Value

Maximum

Display Value

0.15 Ω 0.11 Ω

0.20

Ω 0.16 Ω 5.00 Ω 4.72 Ω

0.50 Ω 0.44 Ω 10.0 Ω 9.47 Ω

1.00 Ω 0.92 Ω 20.0 Ω 17.7 Ω

2.00 Ω 1.87 Ω 50.0 Ω 44.7 Ω

100

/kΩ

= 100 V

100

250

/kΩ

= 250V

100

150

200

250

28 GMC-I Messtechnik GmbH

11 List of Abbreviations and their Meanings

Voltage

ISO

Test voltage or nominal voltage

U AC/DC Measured voltage (sinusoidal alternating voltage)

Resistance

LIMIT Limit value for insulation resistance or low-value resis-

tance

Offset Correction value for measurement cable resistance

ISO

Insulation resistance

Low-value resistance (cable resistance)

Fuse

FUSE “Blown fuse” message

12 Maintenance

12.1 Battery and Rechargeable Battery Operation

When only one filled segment remains in the battery symbol,

install a new set of batteries or charge the rechargeable batteries.

Check to make sure that no leakage has occurred at batteries or

rechargeable batteries at short, regular intervals, or after the

instrument has been in storage for a lengthy period of time.

100

200

300

400

500

= 500V

/kΩ

200

400

600

800

1000

= 1000V

/MΩ

GMC-I Messtechnik GmbH 29

Note

Prior to lengthy periods of rest (e. g. holiday), we recom-

mend removing the (rechargeable) batteries. This helps to

prevent excessive depletion or leakage of batteries,

which, under unfavourable circumstances, may cause

damage to the instrument.

If leakage has occurred, the electrolyte must be carefully and

completely removed with a damp cloth before installing new bat-

teries.

Replacing the Batteries

See section 3.2 and section 12.3.

12.2 Fuses

If a fuse has blown due to overload, a corresponding message

error appears at the LCD panel. The instrument’s voltage measur-

ing ranges are nevertheless still functional.

12.2.1 Fuse Link – FUSE Message

This fuse is active in all resistance measuring ranges except for

voltage measurement. A replacement fuse is included in the bat-

tery compartment (FF315mA/1000V).

Attention!

Disconnect the instrument from the measuring circuit be-

fore opening the battery compartment lid in order to re-

place the fuse (refer to page 5 for location)!

Checking the Fuse

If a resistance measuring range is selected with the rotary switch

with a blown or defective fuse in the instrument, and if the instru-

ment is turned on with the switch in this position, fuse appears at

the LCD. Prerequisite: The + and COM measurement jacks are not

short circuited.

After eliminating the cause of error and replacing the defective

fuse, the fuse message is cleared after the instrument has once

again been switched on.

Attention!

Severe damage to the instrument may occur if incorrect

fuses are used.

Only original fuses from GMC-I Messtechnik GmbH as-

sure required protection by means of suitable blowing

characteristics.

Short-circuiting of fuse terminals or the repair of fuses is

prohibited!

The instrument may be damaged if fuses with incorrect

ampere ratings, breaking capacities or blowing charac-

teristics are used!

Replacing the Fuse

Ð Open the battery compartment lid by loosening the two

screws.

Ð Remove the defective fuse and insert a new one. A replace-

ment fuse is included in the battery compartment.

Ð Insert the new fuse.

Ð Replace the battery compartment lid and retighten the

screws.

30 GMC-I Messtechnik GmbH

12.2.2 Electronic Fuse

This fuse protects low-resistance (Rlo) and resistance measure-

ments (kΩ) from overloading (electronic hardware circuit).

„EL.Fu“ appears when the fuse blows.

Ð Eliminate the cause of overloading. This error message must

be cleared by switching to OFF position.

12.3 Housing

No special maintenance is required for the housing. Keep outside

surfaces clean. Use a slightly dampened cloth or a plastic cleaner

for cleaning. Avoid the use of cleansers, abrasives or solvents.

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 direc-

tive. Furthermore, we make reference to the fact that the current

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

accordance with WEEE 2012/19/EU and ElektroG

using 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 address in section 15).

If you use

batteries

rechargeable batteries

in your instrument or accesso-

ries which no longer function properly, they must be duly disposed of in

compliance with the applicable national regulations.

Batteries or rechargeable batteries may contain harmful substances or

heavy metal such as lead (PB), cadmium (CD) or mercury (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.

13 Recalibration

The measuring tasks performed with your instrument, and the

stressing it’s subjected to, influence aging of its components any

may result in deviation from the specified levels of accuracy.

In the case of strict measuring accuracy requirements, as well as

in the event of use at construction sites with frequent stress due

to transport and considerable temperature fluctuation, we recom-

mend a relatively short calibration interval of once per year. If your

instrument is used primarily in the laboratory and indoors without

considerable climatic or mechanical stressing, a calibration inter-

val of once every 2 to 3 years is sufficient as a rule.

During recalibration* at an accredited calibration laboratory (DIN

EN ISO/IEC 17025), deviations from traceable standards demon-

strated by your measuring instrument are documented. Ascer-

tained deviations are used to correct displayed values during later

use of the instrument.

We would be happy to perform DAkkS or factory calibration for

you at our calibration laboratory. Further information is available at

our website:

www.gossenmetrawatt.com (→ Company → DAkkS Calibration

Center or → FAQs → Question and Answers Regarding Calibra-

tion).

Recalibration of your instrument at regular intervals is essential for

the fulfillment of requirements according to quality management

systems per DIN EN ISO 9001.

* Examination of the specification, as well as adjustment, are not included in calibra-

tion. However, in the case of our own products, any required adjustment is per-

formed and adherence to the specification is confirmed.

Pb Cd Hg

GMC-I Messtechnik GmbH 31

14 Appendix

14.1 Sample Connection Layouts for Insulation Resistance

Measurement

Insulation Resistance Measurement per DIN VDE 0100, Part 600

Between each active conductor and ground

PEN

Between each active conductor and the PEN conductor

Between each active conductor (phase and neutral

conductors) and ground

PEN

Between each active conductor and the PEN conductor

32 GMC-I Messtechnik GmbH

Insulation Resistance Measurement in Different Types of Systems

TN–S

• With or without consumer

•N – PE, separately

TN–C

• With or without consumer

• N – PE, together

• With or without consumer

3-phase current (switched at all poles)

GMC-I Messtechnik GmbH 33

Caution:

– Open the overcurrent protective device

– Disconnect the N conductor

– Jumper the L and N conductors

– Insulation measurement between L conductors and N to PE

– Device switch can be open – if single-pole

In the distributor: individual and combined measurements

34 GMC-I Messtechnik GmbH

14.2 Attaching the strap to the test instrument

14.3 Attaching the Test Probe Holder to the Carrying Strap

Front

Feed the strap through from the front

of the test instrument and secure it

with the slotted screw (M3).

Back

Bottom Right

Detach the strap from the instrument:

Turn out the slotted screw (M3) at the

bottom.

Bottom Left

Strap

Clasp

Front View

Slide the strap through the test probe

holder.

Eyelet for Attachment to Tester (METRISO ...)

Side View

GMC-I Messtechnik GmbH 35

14.4 Technical Data for Measurement Cables

(scope of delivery: KS17-4 safety cable set)

Electrical Safety

Ambient Conditions (EN 61010-031)

Temperature –20 °C ... + 50 °C

Relative humidity Max. 80%

Pollution degree

Using the KS17-4

Attention!

Observe the instrument’s maximum values for electrical safety.

Measurements per DIN EN 61010-031 may only be per-

formed in environments in accordance with measuring

categories III and IV with the safety cap attached to the

test probe at the end of the measurement cable.

In order to establish contact inside 4 mm jacks, the safety caps

have to be removed by prying open the snap fastener with a

pointed object (e.g. the other test probe).

Front

Feed the strap through from the front

of the test instrument and secure it

with the slotted screw (M3).

Back

Maximum rated voltage 600 V

1000 V

Measuring category

CAT IV CAT III CAT II

Max. rated current: 1 A 1 A 16 A

With safety cap attached

••

—

Without safety cap ——

•

36 GMC-I Messtechnik GmbH

14.5 Optional Accessories (not included)

ISO Calibrator 1 (material no. M662A)

Calibration adapter for testing the accuracy of instru-

ments used for measuring insulation resistance and

low-resistance for test voltages up to 1000 V (per VDE

0413, parts 1, 2, 4 and 10)

KS-C (material no. Z541F)

Cable set consisting of measurement cable and

shielded high-resistance measurement cable for mea-

surements in the GΩ range

KY95-3 (material no. Z110J)

(

METRISO BASE/TECH: scope of delivery 1 piece)

Alligator clips (1 pair) for KS17-4 and KS-C

1081 probe (material no. GTZ3196000R0001)

Triangular probe for floor measurements per EN 1081,

DIN VDE 0100-600 (Standing-Surface Insulation)

KS24 (material no. GTZ3201000R0001)

Cable set consisting of a 4 m long extension cable with

a permanently attached test probe at one end and a

contact protected socket at the other end, and 1 alli-

gator clip which can be plugged onto the test probe

Test Probe for Remote Triggering

(material no. Z550A)

Optional plug-on measurement cable with a triggering

key on the test probe and an additional key for illumi-

nating the measuring point, including shielded, plug-in

connector cable.

14.5.1

Application Test Probe for Remote Triggering (Option Z550A)

When inserting

the 3-pole plug,

make sure that

the jack plug is

inserted in the

START/STOP

position. Press

and align the 3-

pole plug such

that it is placed

flush on the con-

nection terminal.

This is the only

way to assure

that the three

contacts of the

jack plug are

properly con-

nected with the command cables.

(G500/G1000)

START/STOP SHIELD COM

Option Z550A

GMC-I Messtechnik GmbH 37

15 Repair and Replacement Parts Service

Calibration Center* and Rental Instrument Service

If required please contact:

GMC-I Service GmbH

Service Center

Thomas-Mann-Str. 20

90471 Nürnberg, Germany

Phone: +49 911 817718-0

Fax: +49 911 817718-253

e-mail: service@gossenmetrawatt.com

www.gmci-service.com

This address is only valid in Germany.

Please contact our representatives or subsidiaries for service in

other countries.

* DAkkS Calibration Laboratory for Electrical Quantities

D-K-15080-01-01

accredited per DIN EN ISO/IEC 17025:2005

Accredited quantities: direct voltage, direct current value, direct current resistance,

alternating voltage, alternating current value, AC active power, AC apparent power,

DC power, capacitance, frequency, temperature

Competent Partner

GMC-I Messtechnik GmbH is certified in accordance with

DIN EN ISO 9001:2008.

Our DAkkS calibration laboratory is accredited by the Deutsche

Akkreditierungsstelle GmbH (National accreditation body for the

Republic of Germany) in accordance with DIN EN ISO/

IEC 17025:2005 under registration number D-K-15080-01-01.

We offer a complete range of expertise in the field of metrology:

from test reports and proprietary calibration certificates right on up to

DAkkS calibration certificates.

Our spectrum of offerings is rounded out with free test equipment

management.

An on-site DAkkS calibration station is an integral part of our service

department. If errors are discovered during calibration, our spe-

cialized personnel are capable of completing repairs using original

replacement parts.

As a full service calibration laboratory, we can calibrate instru-

ments from other manufacturers as well.

16 Product Support

If required please contact:

GMC-I Messtechnik GmbH

Product Support Hotline

Phone: +49 911 8602-0

Fax: +49 911 8602-709

e-mail support@gossenmetrawatt.com

38 GMC-I Messtechnik GmbH

GMC-I Messtechnik GmbH 39

Edited in Germany • Subject to change without notice • PDF version 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

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Gossen Metrawatt METRISO INTRO Manual

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