DMM800 Series Adjustment Procedures
36
Handheld and Benchtop Instruments Basic Service
Perform the following steps to adjust the AC voltage calibration at 60 Hz.
1. Set the multimeter dial to V
.
2. Set the calibrator to output 2.0000 VAC at 60 Hz.
3. Connect the outputs of the calibrator to the _C V W
and COM input
connectors of the multimeter.
4. Adjust VR6 until the display shows 1.9999 to 2.0001 VAC.
5. Turn the calibrator output off.
6. Disconnect the calibrator from the multimeter.
Perform the following steps to adjust the capacitance calibration.
1. Set the multimeter dial to
.
2. Null the residual DMM and lead capacitance offset.
a. Using Fluke 5500A or Wavetek 9100 minus the 9105 front porch:
H Set the calibrator output to OFF.
H Connect the test leads to the multimeter _C V W
and COM
inputs.
H Connect the multimeter COM lead to the calibrator common output.
H Press the multimeter gold key followed by the D/% key.
H Connect the multimeter _C V W
lead to the remaining calibrator
output.
H Set the calibrator output to ON.
b. Using Wavetek 9100 with 9105 front porch:
H Set the calibrator output to OFF.
H Connect the multimeter test leads to the calibrator outputs.
H Connect the calibrator common lead to the multimeter COM input.
H Press the multimeter gold key followed by the D/% key.
H Connect the remaining calibrator output lead to the multimeter
_C V W
input.
H Set the calibrator output to ON.
3. Set the calibrator to output 300 nF.
AC Volts
Capacitance
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