DMM91X Series Performance Verification
12
Handheld and Benchtop Instruments Basic Service
4. Set the calibrator output to OFF.
5. Disconnect the calibrator from the multimeter.
Perform the following steps to verify the AC+DC voltage measurement
accuracy.
1. Set the multimeter dial to AC+DC.
2. Connect the calibrator outputs to the multimeter _C V W
and COM input
connectors.
3. Set the calibrator to each of the values in the AC+DC Volts Test record and
verify that the multimeter reads within the specified Display Minimum and
Maximum limits.
4. Set the calibrator output to OFF.
5. Disconnect the calibrator from the multimeter.
Perform the following steps to verify the frequency measurement accuracy.
1. Set the multimeter dial to Hz.
2. Connect the calibrator outputs to the multimeter _C V W
and COM input
connectors.
3. Set the calibrator to each of the values in the Frequency Test record and
verify that the multimeter reads within the specified Display Minimum and
Maximum limits.
4. Set the calibrator output to OFF.
5. Disconnect the calibrator from the multimeter.
Perform the following steps to verify the duty factor measurement accuracy.
1. Set the multimeter dial to Hz.
2. Push the BLUE button to select duty factor.
3. Connect the calibrator outputs to the multimeter _C V W
and COM input
connectors.
4. Set the calibrator to each of the values in the Duty Factor Test record and
verify that the multimeter reads within the specified Display Minimum and
Maximum limits.
5. Set the calibrator output to OFF.
AC+DC Volts Check
Frequency Check
Duty Factor Check
(DMM914 and DMM916)
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