User manual

1 Calibration Procedures
Using the Front Panel for Adjustments
28 U1271A/U1272A Service Guide
3 The primary display will show the reference value of the
calibration item.
Figure 1-9 rEF display
4 Configure each calibration item.
5 Use the , , , and keys to select the
calibration range.
6 Apply the input signal shown in the Reference Value
column of Table 1- 3. The analog bar graph displays the
input reading. There is no bar graph display for
temperature adjustment.
7 Use the , , , and keys to enter the
actual applied input values.
8 Press to start the adjustment. flashes in the
secondary display to indicate that the calibration is in
progress.
9 Upon completion of each adjustment value, the secondary
display will show . If the adjustment fails, the
multimeter will sound a long beep and the calibration
NOTE
While in the adjustment mode, press and simultaneously to
exit the adjustment mode.
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Exit
Dual
Setup
NOTE
You are highly recommended to complete the adjustments in the same
order as shown in the appropriate table.
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Exit
Dual
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