5 Performance Tests and Calibration
64 Keysight U1241B and U1242B User’s and Service Guide
Input-A Terminal Test
This test determines if the input warning of the A current terminal test is
functioning properly. The multimeter sounds an alerting beep when the test lead
is inserted to the A input terminal but the rotary switch is not set to the
corresponding A location. The display indicates a flashing AErr annunciator until
the test lead is removed from the A input terminal. This warning alert is not
available in T1/T2 temperature measurements mode.
Input-mA Terminal Alert Test
This test determines if the detected input voltage level is within the accepted
boundaries when the μA/mA input terminal is connected. The multimeter sounds
an alerting beep when the μA/mA input terminal detects a voltage level of higher
than 1.6 V. The display indicates a flashing CErr annunciator until the test lead is
removed from the μA/mA input terminal.
Calibration Process
1 Prior to performing the verification tests, see Test Considerations.
2 Perform the verification tests to characterize the multimeter, see Performance
Verification Tests.
3 Unsecure the multimeter for calibration, see Calibration Security.
4 Prior to performing the adjustments, see Adjustment Considerations.
5 Perform the adjustment procedures, see Calibration Adjustments.
6 Secure the multimeter against unauthorized calibration, see Exiting
Adjustment Mode. Ensure that the multimeter has quit the Adjustment Mode
and turned off.
7 Record the new security code and calibration count in the multimeter’s
maintenance records.
The alerting beep will not be impacted even if the beep function is disabled.
To Next Page
Loading...
