Input A And B Ac Voltage Accuracy Test - Fluke ScopeMeter 123 Service Manual

Sensitivity
(Oscilloscope)
5 mV/div
10 mV/div
20 mV/div
50 mV/div
100 mV/div
200 mV/div
500 mV/div
1 V/div
2 V/div
5 V/div
10 V/div
20 V/div
50 V/div
100 V/div
1)
The 500V and 1250V range will be tested in Section 4.5.14
2)
Due to calibrator noise, occasionally OL (overload) can be shown.

4.5.10 Input A and B AC Voltage Accuracy Test

Dangerous voltages will be present on the calibration source
and connecting cables during the following steps. Ensure that
the calibrator is in standby mode before making any connection
between the calibrator and the test tool.
Proceed as follows to test the Input A and B AC Voltage accuracy:
1. Connect the test tool to the 5500A as for the previous test (see Figure 4-5).
Table 4-2. Volts DC Measurement Verification Points
1)
Range
(Meter)
500 mV
500 mV
500 mV
500 mV
500 mV
500 mV
5V
5V
5V
50V
50V
50V
500V
500V
Warning
5500A output, Input A-B DC Reading
V DC
15 mV
30 mV
60 mV
150 mV
300 mV
500 mV
-500 mV
0 mV
1.5V
3V
5V
-5V
0V
15V
30V
50V
-50V
0V
150V
300V
Performance Verification
4.5 Input A and Input B Tests
2)
014.4 to 015.6
2)
029.3 to 030.7
059.2 to 060.8
148.7 to 151.3
298.0 to 302.0
497.0 to 503.0
-497.0 to -503.0
-000.5 to + 000.5
1.487 to 1.513
2.980 to 3.020
4.970 to 5.030
-4.970 to -5.030
-0.005 to +0.005
14.87 to 15.13
29.80 to 30.20
49.70 to 50.30
-49.70 to -50.30
-00.05 to +00.05
148.7 to 151.3
298.0 to 302.0
4
4-15