Справочник Пользователя для Benning IT 120 B 044102
Модели
044102
46
Displayed results:
R:
R:
Resistance to earth
R
C:
Auxiliary earth electrode resistance
R
P:
Probe resistance
Save displayed results for documentation purposes. Refer to chapter 6.1 for further information on
setting functions and saving of measurement results.
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
- 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!
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!
5.10 TRUE RMS current (A~) (BENNING IT 120 B only)
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.
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
Step 1
Select A~ TRUE RMS (current) function with the function selector switch. The following
menu is displayed:
menu is displayed:
Fig. 5.47: TRUE RMS current measurement menu
Connect the current clamp to the BENNING IT 120 B.
Step 2
Follow the connection diagram shown in fig. 5.48 to perform the TRUE RMS current
measurement. Use the Help function if necessary.