Technical data

1 Calibration Procedures
Using the Front Panel for Adjustments
48 U1270 Series Service Guide
7 Use the arrow keys to enter the actual applied input
values.
8 Press to start the adjustment. CAL is shown on the
display to indicate that the calibration is in progress.
9 Upon completion of each adjustment value, the display
will show PASS. If the adjustment fails, the instrument
will sound a long beep and the calibration error number
is shown on the display.
10 Turn the rotary switch to the next function according to
the Test function column shown in Table 1- 3. Repeat
step 3 to step 8 for each adjustment point shown in the
adjustment table.
11 Verify the adjustments using the “Performance Verification
Tests” on page 27.
Exiting the adjustment mode
1 Remove all the shorting plugs and connectors from the
instrument.
2 Record the new Calibration Count.
3 Press and simultaneously to exit the
Adjustment Mode.
4 Cycle the instrument’s power. The instrument will then be
secured.
NOTE
You are highly recommended to complete the adjustments in the same
order as shown in Table 1-3.
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NOTE
If the adjustment fails, check the input value, range, function, and entered
adjustment value before repeating the adjustment steps.
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