DMM800 Series Adjustment Procedures
Handheld and Benchtop Instruments Basic Service
37
4. Adjust VR2 until the display shows 299.9 to 300.1 nF.
5. Set the calibrator to output 1.000 mF.
6. Adjust VR3 until the display shows 0.999 to 1.001 mF.
7. Set the calibrator to output 100.0 mF.
8. Adjust VR1 until the display shows 99.9 to 100.1 mF.
9. Turn the calibrator output off.
10. Disconnect the calibrator from the multimeter.
Perform the following steps to adjust the temperature calibration.
1. Set the multimeter dial to _C / _F.
2. Connect the thermocouple adapter ATK01 to the _C V W
and COM input
connectors of the multimeter.
3. Set the calibrator to output 18.6_ C.
4. Connect a K-type thermocouple from the calibrator output to the ATK01
thermocouple adapter.
5. Allow five minutes of settling time for a stable reading.
6. Adjust VR4 until the display shows 18.5_ to 18.7 _C.
7. Turn the calibrator output off.
8. Disconnect the calibrator from the multimeter.
Perform the following steps to adjust the DC milliamperes calibration.
1. Set the multimeter dial to mA
.
2. Connect the outputs of the calibrator to the mA mA and COM input connec-
tors of the multimeter.
3. Set calibrator to output 100.0 mA.
4. Press and hold the gold button for five seconds. (The multimeter beeps twice
when the gold button is first pressed and then two more beeps follow after
five seconds.)
5. Press the SETUP button and wait for the calibration to finish (CAL is
displayed during the calibration). After the calibration is completed, press
EXIT SETUP (blue button).
6. Turn the calibrator output off.
Temperature
(DMM850 and DMM870)
DC Milliamperes
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