590606

Gossen Metrawatt METRA HIT 27I Manual

14
Zoom out
Zoom in
Previous page
1/28
Next page
14 GMC-I Messtechnik GmbH
9.3 Milliohm Measurement with 200 mA or 20 mA DC [mΩ]
Ð Make sure that the device under test is voltage-free (see
chapter 7.1). Interference voltages distort measurement
results!
Ð Set the rotary selector switch to “mΩ”.
Ð Connect the device under test as shown.
KC4 Kelvin clips and KC27 Kelvin probes (available as
accessories) allow for easy, correct connection.
Resistance at the current jacks should amount to <1Ω.
Ð If applicable, select the desired measuring range using
the MAN|AUTO key: 30 mΩ, 300 mΩ, 3 Ω or 30 Ω.
This measuring method is suitable for resistances with
inductances of up to 1 H.
Thermovoltage Correction in the 30/300 mΩ Range
Ð Press the FUNC key in order to measure thermovoltage.
Wait until the measured value has settled in. This may
take several seconds, depending upon inductivity. Then
press the FUNC key once again in order to return to the
milliohm measuring function. All future measurement
result will be corrected based upon the previously
measured thermovoltage value. ZERO appears at the
display in order to indicate active compensation.
Measurements at Inductive Devices
Coils in motors, choke ballasts and contactors are highly
inductive. Changes in current at inductive devices, including
switching the milliohmmeter on and off or changing the
measuring range, result in a corresponding voltage change.
These changes may be of significant magnitude, and may
result in arcing under unfavorable conditions. The
milliohmmeter is protected against arcing by means of
suitable voltage arrestors.
9.4 Milliohm Measurement with 1 A Pulsating Measuring
Current [mΩ@1 A]
(automatic thermovoltage correction in 3
…
300
m
Ω
range)
Ð Make sure that the device under test is voltage-free (see
chapter 7.1). Interference voltages distort measurement
results!
Ð Set the rotary selector switch to “mΩ@1A”.
Ð Connect the device under test as shown.
KC4 Kelvin clips and KC27 Kelvin probes (available as
accessories) allow for easy, correct connection.
Resistance at the current jacks should amount to <0.2Ω.
Ð If applicable, select the desired measuring range using
the MAN|AUTO key: 3mΩ, (30 mΩ or 300 mΩ)
Thermovoltage is compensated automatically.
Note!
Due to high current consumption during this
measurement, NiMH storage batteries should be
installed and the NA HIT 2x mains power battery
charger should be used.
10 Temperature Measurement [°C]
Resistance thermometers (available as accessories) are used
for temperature measurement. A 2-pole measurement is
utilized. Cable resistance is set to 0.1 Ω as a default value.
Selecting Temperature Unit of Measure and Sensor Type
Ð Set the rotary selector switch to “°C”. Press FUNC to
access the selection menu for temperature unit of
measure and sensor type. sensr and selCt are displayed.
Ð Press the FUNC key to select the desired temperature unit
of measure: °C or °F.
Ð Select the sensor type (RTD) with the  keys.
Ð Connect the sensor to the two jacks (see diagram).
Note!
The selected temperature unit of measure and sensor
type remain unchanged after exiting the function, and
when the instrument is switched off.
0023.2
°C
sensr
pt1000 selCt
°C

Pt100
FUNC
FUNC
00.10
temp
Ω


Cable
Resistance
Pt1000 (TF220)
Ni100
Ni1000
0 … 50
Ω
+
pt1000
FUNC
RTD
°C / °F
rlead
… 14 …


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Gossen Metrawatt METRA HIT 27I at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Gossen Metrawatt METRA HIT 27I in the language / languages: English as an attachment in your email.

The manual is 0,51 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

Others manual(s) of Gossen Metrawatt METRA HIT 27I

Gossen Metrawatt METRA HIT 27I Quick start guide - English, German - 4 pages

Gossen Metrawatt METRA HIT 27I User Manual - Dutch - 28 pages

Gossen Metrawatt METRA HIT 27I Quick start guide - French - 4 pages


The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info