DMM800 Series Performance Verification
Handheld Instruments Basic Service
13
4. Turn the calibrator output 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
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. Turn the calibrator output 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
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. Turn the calibrator output 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 (% DF).
3. Connect the calibrator outputs to the multimeter C V
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.
AC+DC Volts Check
Frequency Check
Duty Factor Check
(DMM850 and DMM870)
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