6
Performance Tests and Calibration
Functional tests (only for U1212A and U1213A)
DC current offset verification test
1 Place the clamp meter at a stationary position. Keep the clamp jaw closed
2 Turn the rotary switch of the clamp meter to the DC current function.
3 Check whether the measured reading falls within the specified error limits from
Ensure that the clamp meter is stationary when conducting the functional tests
NOTE
in order to get accurate readings.
Table 6-3
DC current offset verification test
Test function
DC current
[a] Null function turned on.
94
without any conductor within the jaw.
the reference value as stated in
Please contact Keysight Service Center for support.
Range
Reference input value
40 A
0 A
Keysight U1211A, U1212A, and U1213A User's and Service Guide
Table
6-3. Otherwise, repair is recommended.
[a]
Error limits
±0.15 A