True-rms Digital Multimeters
Calibration Adjustment
25
Table 7. Calibration Adjustments Steps (cont.)
Step
Rotary Switch
Position
Source Value
Settling Time
(seconds)
Calibrating Time
[1]
(seconds)
9 mV AC 0.0 V, 0 Hz 10 5
10 VAC 0.0 V, 0 Hz 4 10
11 VAC 5.0000 V, 60 Hz 10 5
12 VAC 5.0000 V, 65 kHz
[2]
5 35
13 VAC 50.000 V, 60 Hz 6 10
14 VAC 50.000 V, 100 kHz 6 120
15 VAC 250.00 V, 60 Hz 8 2
16 VAC 500.00 V , 60 Hz 6 5
17 VAC 1000.0 V, 60 Hz 7 4
18 VDC 0.0 V, 0 Hz 3 30
19 VDC 5.0000 V, 0 Hz 3 5
20 VDC 5.0 V, 60.0 Hz 4 5
21 VDC 5.0 V, 20.0 kHz 3 35
22 VDC 50.000 V, 0 Hz 3 8
23 VDC 50.0 V, 60.0 Hz 5 15
24 VDC 50.0 V, 20.0 kHz 7 115
25 VDC 500.00 V, 0 Hz 3 7
26 VDC 500.0 V, 60.0 Hz 4 5
27 VDC 1000.0 V, 0 Hz 2 5
28 VDC 1000.0 V, 60.0 Hz 4 5
29 mV DC 50.0 mV, 60.0 Hz 4 3
30 mV DC 500.0 mV, 60.0 Hz 5 3
Connect the 5520A in a 4-Wire configuration and select COMP2-Wire
31 Ω 0 Ω, zcomp wire2 4 20
32 Ω 500 Ω, zcomp wire2 5 2
33 Ω 5 kΩ, zcomp wire2 5 2
34 Ω 50 kΩ, zcomp wire2 5 2
Disconnect 5520A 4-Wire configuration and turn COMP off
35 Ω 500 kΩ 5 5
36 Ω 5.0 MΩ 5 5
37 Ω 50.0 MΩ 5 5
38 Ω 500.0 MΩ 5 2