Benning IT 120 B 044102 Manual De Usuario

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Displayed results: 
R:  

Resistance to earth

 

Auxiliary earth electrode resistance

 

Probe resistance

Save displayed results for documentation purposes. Refer to chapter 6.1 for further information on 
setting functions and saving of measurement results.

Note:
-   If the voltage between the test terminals H and E is higher than 30 V the earth measurement 

will not be performed.

-   If the value for the auxiliary earth electrode or the probe resistance is too high (100*RE or > 

50 kΩ), the respective warning symbol will be displayed in the message field. The measure-
ment results may be affected!

-   If a noise voltage higher than approx. 5 V is present between the H and E or S test terminals, a 

warning symbol “

” will be displayed in the message field. The measurement results may be

affected!

This function enables measuring of AC currents in a wide range from 0.5 mA to 20 A. Load cur-
rents can be measured quickly and reliably. The TRUE RMS functions guarantees a correct test 
result even for non-sinusoidal signals. The current clamp adapter BENNING CC 2 can be used for 
measuring load currents between 0.5 A and 20 A.

How to perform TRUE RMS current measurement:
Step 1 

Select A~ TRUE RMS (current) function with the function selector switch. The following 
menu is displayed:

 

 

Connect the current clamp to the BENNING IT 120 B.

  Follow the connection diagram shown in fig. 5.48 to perform the TRUE RMS current

measurement. Use the Help function if necessary.