Testing The Mv Dc Function; Testing The Resistance Function - Fluke 87 III Series Service Information

6. Compare the reading on the Meter display to the display reading for step 1 in
Table 8.
If the display reading falls outside of the range shown in Table 8, the Meter does not
meet specification.
7. Press Mto begin displaying minimum values.
8. Compare the reading on the Meter display to the display reading for step 2 in
Table 8.
AC Input
Step Voltage
1 2.0 V
2 2.0 V

Testing the mV DC Function

To test the accuracy of the mV dc function, do the following:
1. Connect the Calibrator to the Vand COM inputs on the Meter.
2. Turn the rotary switch to
3. Apply 350.0 mV.
4. Compare the reading on the Meter display to the display reading for your Model
shown below.
Model 83 III
Model 85 III
Model 87 III
If the display reading falls outside of the range shown, the Meter does not meet
specification.

Testing the Resistance Function

To verify the accuracy of the resistance function, do the following:
1. Connect the Calibrator to Vand COM on the Meter.
2. Turn the rotary switch to
3. Apply the inputs for steps 1-5 in Table 9.
Compare the Meter display readings to the display readings for your Model of
Meter.
4. Press Kon the Meter to enter the 40-nanosiemen range used for conductance
tests of high resistances. Then proceed with step 6 of Table 9.
Table 8. Peak MIN MAX Test
Frequency 83 III
60 Hz N/A
60 Hz N/A
L .
m
348.8 to 351.2
349.5 to 350.5
349.5 to 350.5
Ω.
Display Reading
85 III 87 III
N/A 2.705 to 2.951
N/A -2.705 to -2.951
Multimeters
Performance Tests
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