3 Calibration Procedures
58 Keysight 34980A Service Guide
Analog Output Verification Test
This procedure is used to check the
calibration of the analog outputs on the 34951A 4-channel DAC Module.
Verification checks are performed only for those output values with unique
calibration constants.
1 Using the input test connector described on page 57, leave the current input
terminal open. Set the DMM to the 100 mA range. Make and record a current
measurement. This value will be used as an offset value during the output
current zero verification.
2 Make voltage measurement connections to channel 1 of the module.
3 Set each output voltage value in the table below and make a measurement.
Compare measurement results to the appropriate test limits shown in the
table.
4 Make current measurement connections to channel 1 of the module. Set the
DMM to the 100 mA range.
5 Set each output current value in the table below and make a measurement.
Compare measurement results to the appropriate test limits shown in the
table. When measuring the 0 mA output value, apply the offset value from
step 1 to the measured value.
6 Repeat steps 2 through 5 for channels 2, 3 and 4.
7 Remove the input test connector.
It is not necessary to test the voltage output at the full rated 10 mA load. If you
test the output using a load, connect the sense terminals.
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