Ac Zero Calibration - Keysight Technologies DAQ970A Service Manual

9 The display will show a message indicating that ADC calibration is in process.
10 Store the new zero and ADC calibration constants (see

AC zero calibration

1 Ensure that you have read
2 Ensure that you follow the sequence listed in the
3 This procedure will use the copper short installed on Channel 303.
4 Select Channel 303 and configure the function to AC voltage, 1 V range, and
5 Enable Channel Monitor on the selected channel before each test (see
6 Enter a calibration value of +0 and press Perform Cal Step to begin the
7 The AC zero calibration lasts approximately 10 seconds. A "Calibration Step
8 Store the new AC zero calibration constants (see
Keysight DAQ970A/DAQ973A Service Guide
It will then display the results of the ADC calibration. A "Calibration Step
Succeeded" message indicates success; if the display shows "Calibration Step
Failed", check the input value, range, function, and entered calibration value,
and repeat the calibration step.
constants" on page 46).
this test.
Sequence" on page 51.
AC filter (20 Hz).
"Channel monitor" on page 50).
adjustment procedure (see
Succeeded" message indicates success; if the display shows "Calibration Step
Failed", check the input value, range, function, and entered calibration value,
and repeat the calibration step.
constants" on page 46).
"Test Considerations"
"Entering calibration values"
Calibration Procedures
"Storing calibration
on page 47 before beginning
"Calibration Adjustment
on page 46).
"Storing calibration
2
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