Gossen Metrawatt Metrahit Iso Insulation measuring device, CAT III 600 V Metrahit Iso Benutzerhandbuch

40

GMC-I Gossen-Metrawatt GmbH

Measurements: V/Hz, 

Ω,  , Temp (°C/°F), 

, M

Ω

@UISO

, A/Hz

Caution: High-Voltage!

Do not touch the conductive ends of the test probes when the 
instrument has been activated for the measurement of insulation 
resistance. 
You may otherwise be exposed to a current of 2.5 mA 
(limited in the measuring instrument), and although this is 
not life endangering, the resulting electrical shock is quite 
discernible. 
If, on the other hand, measurement is being performed on a 
capacitive device under test, for example a cable, it may be 
charged with up to approximately 

±1200 V.

Touching the device under test after measurement has been 
performed is life endangering in this case!

Selecting the Test Voltage (U

ISO

 = 50 to 1000 V)

The desired test voltage can be selected in the “

SET” menu (see 

 

1nFo 

Z

 ... 

Z

 

SET 

 

rAtE 

V

 ... 

V

 

v1so

 ... 

500, 1000 V* 

UV

 

 

* Selectable test voltages and the default value depend upon the 

respective device variant.

The selected test voltage appears at the display during testing.

5.7.2 Performing the Insulation Measurement
➭ Starting the insulation resistance measurement: 

Press and hold the U

ISO

 ON / OFF key until the display settles 

in, in order to measure insulation resistance. 
Insulation resistance measurement is ended by releasing the 
key.

Auto-ranging is active during insulation resistance measurement. 

MEASURE

SETUP

FUNC

ENTER

FUNC

ENTER

FUNC

ENTER

0

02.00

M

Ω

M

Ω

FUNC

ENTER

U

ISO ON

 

/ OFF

000.0

V

Activate

Test Voltage

DC

AC

TRMS

M

Ω

@UISO

V

1M

Ω