Digital Multimeters
Performance Tests
13
Testing Meter Accuracy
To test the accuracy of the Meter, perform the steps in Table 3.
Table 3. Accuracy Tests
Display Reading
Step
Test
Function
Range 5520A Output
27 II 28 II
1 600 mV 60 mV, 60 Hz 59.4 to 60.6 59.2 to 60.8
2 600 mV 330 mV, 60 Hz 328.0 to 332.0 327.3 to 332.7
3 600 mV 600 mV, 13 kHz 575.0 to 625.0 586.0 to 614.0
4 6 V 675 mV, 60 Hz 0.669 to 0.681 0.666 to 0.684
5 6 V 3.3 V, 60 Hz 3.280 to 3.320 3.273 to 3.327
6 6 V 3.3 V, 20 kHz 3.158 to 3.442 3.214 to 3.386
7 60 V 6.75 v, 60 Hz 6.69 to 6.81 6.68 to 6.82
8 60 V 33 V, 60 Hz 32.80 to 33.20 32.75 to 33.25
9 60 V 33 V, 20 kHz 31.58 to 34.42 N/A
10 60 V 33 V, 5 kHz 32.30 to 33.7 N/A
11 600 V 67.5 V, 60 Hz 66.9 to 68.1 66.8 to 68.2
12 600 V 330 V, 60 Hz 328.0 to 332.0 327.5 to 332.5
13 600 V 330 V, 2.5 kHz 323.1 to 336.9 323.0 to 337.0
14 1000 V 100 V, 60 Hz 96 to 104 97 to 103
15
AC Volts
1000 V 1000 V, 1 kHz 987 to 1013 986 to 1014
16 600 mV 150 mV, 99.95 kHz 99.93 to 99.97 99.93 to 99.97
17
AC Volts
Frequency
600 mV 150 mV,
199.50 kHz
199.48 to 199.52 199.48 to 199.52
18 6 V 0.7 V, 99.95 kHz 99.93 to 99.97 99.93 to 99.97
19
Sensitivity
60 V 7 V, 99.95 kHz 99.93 to 99.97 99.93 to 99.97
20
Trigger level
6 V 3.4 V, 1 kHz Sq.
Wave
999.8 to 1000.2 999.8 to 1000.2
21
Duty Cycle
6 V 5 V, 1 kHz, DC
offset 2.5 V Sq.
Wave
49.7% to 50.3 % 49.7 % to 50.3 %
22
6 V
3.3 V dc 3.297 to 3.303 3.297 to 3.303
23
60 V
33 V dc 32.97 to 33.03 32.97 to 33.03
24
600 V
330 V dc 329.7 to 330.3 329.7 to 330.3
25
DC Volts
1000 V 1000 V dc 998 to 1002 998 to 1002
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