Справочник Пользователя для Benning IT 120 B 044102

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Displayed results:
R:  

Insulation resistance

Um: 

Test voltage of the BENNING IT 110/ BENNING IT 120 B

Save displayed results for documentation purposes. Refer to chapter 6.1 for further information on 
setting functions and saving of measurement results. (BENNING IT 120 B only)

Warning:
-   Insulation resistance measurement should only be performed on de-energised objects!
-   When measuring insulation resistance between installation conductors all loads must be dis-

connected and all switches closed.

-   Do not touch the test object during the measurement or before it is fully discharged. Risk of 

electric shock!

-   When an insulation resistance measurement has been performed on a capacitive object auto-

matic discharge may not be done immediately. Warning message   and actual voltage is dis-
played during discharge, until voltage drops below 10 V.

-   Do not connect test terminals to external voltage higher than 600 V (AC or DC) in order not to 

damage the BENNING IT 110/ BENNING IT 120 B.

Note:
-   In case of voltage higher than 10 V (AC or DC) between test terminals, the insulation resis-

tance measurement will not be performed.

Two Resistance/ Continuity testing sub-functions are available:

-   LowΩ resistance measurement
-   Continuity measurement

This test is used to ensure electric safety and correct connection of all protective conductors, earth 

conductors or bonding conductors. The measurement of LowΩ resistance is performed with au-
tomatic pole reversal of the test voltage and the test current of more than 200 mA. This measure-
ment completely complies with the EN 61557-4 regulations. 

How to perform LowΩ resistance measurement:
Step 1 

Select R

LOW

-Ω, DURCHGANG/ CONTINUITY with the function selector switch. Use the

/

 keys to select RLOW. The following menu is displayed: