Performance Tests and Calibration 5
U1241A/U1242A User’s and Service Guide 51
Calibration Adjustments
1 Turn the rotary switch to Test Function position, as shown in
Table 5- 14.
2 After unsecuring the meter, the meter will go into the adjustment mode,
see Unsecuring the Meter for Calibration.
3 The primary display will show the reference value of the Cal Items.
Configure each Cal Item shown in Valid Adjustment Input Reference
Values in Table 5- 14.
4 Use the and arrow keys to select the Cal Range.
5 Apply the input signal as shown in the Valid Input Reference Value
column of the Table 5- 14. The bar graph will display the input reading.
There is no bar graph display for temperature adjustment.
6 Enter the actual applied input, see Entering Adjustment Values.
7 Press to start the adjustments. The CAL flashes in the
secondary display indicating the calibration is in progress.
8 Upon completion of each adjustment value, the secondary display will
show PAS. If the adjustment failed, the meter will sound a long beep
and the calibration error number appears in the secondary display. The
primary display remains at the current Cal Item.
Review the Test Considerations and Adjustment Considerations before beginning the
adjustment procedures.
Users are highly recommended to complete the adjustments in the same order as shown in
Ta b l e 5 - 1 4 .
If the adjustment failed, check the input value, range, function, and entered adjustment
value and repeat the adjustment steps.
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