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Calibration Information
14
Testing the AC Voltage Function
W
Warning
To prevent possible electric shock, connect the ground/common/low side of the
ac calibrator to common on the UUT.
1.
Set the UUT to
K
(V ac), and connect the ac calibrator to the V
Ω
G
and COM input terminals.
2.
Set the ac calibrator for the output given in Table 5, and verify that the UUT display reading is within
the limits shown.
Note
When the input is open in the V ac function, it is normal for the Meter to read some counts on
the display. This is due to ac pickup in the ac amplifier when the ac amplifier is unterminated.
Table 5. AC Voltage Test
Step
Range
Voltage
Freq.
Display Reading
1
400 mV
20 mV
100 Hz
19.2 to 20.8 mV ac
2
400 mV
350 mV
100 Hz
343.0 to 357.0 mV ac
3
400 mV
350 mV
1 kHz
343.0 to 357.0 mV ac
4
4 V
200 mV
100 Hz
.194 to .206 V ac
5
4 V
3.5 V
100 Hz
3.432 to 3.569 V ac
6
4 V
3.5 V
1 kHz
3.432 to 3.569 V ac
7
40 V
35 V
1 kHz
34.46 to 35.55 V ac
8
400 V
350 V
1 kHz
344.6 to 355.5 V ac
9
1000 V
1000 V
1 kHz
983 to 1017 V ac
Testing the Frequency Function
1.
Set the UUT to Hz and connect the function generator output to the V
Ω
G
and COM input terminals of
the UUT.
2.
Referring to Table 6, set the function generator for the output indicated in the steps. Verify that the
UUT display reading is within the limits shown.
Table 6. Frequency Test
Step
Range
Voltage
Freq.
Display Reading
1
4 V
300 mV
800 Hz
799.8 Hz to 800.2 Hz
