Fluke 287C - Page 31

True-rms Digital Multimeters
Calibration Adjustment
27
Table 7. Calibration Adjustment Steps for Firmware Version 1.00 (cont.)
Connect the 5520A in a 4-Wire configuration and select COMP 2-Wire
To reduce settling time, apply 10 ohms to Meter before setting Rotary Switch to LoΩ
53 LoΩ (289) 10.000 Ω 30 2
54 LoΩ (289) 50.000 Ω 15 3
Disconnect 5520A 4-Wire configuration and turn COMP off
55 LoZ (289) 10.0 V, 0 Hz 2 2
56 mV AC (289) 500.00 mV, 60 Hz 5 5
[1] Meter is “Calibrating” after “Next” is pressed.
[2] For software version 1.00, the instrument display indicates 60 kHz. Use 65 kHz.
Table 8. Calibration Adjustment Steps for Firmware Version 1.10
Step
Rotary Switch
Position
Source Value
Settling Time
(seconds)
Calibrating Time
[1]
(seconds)
1 mV DC 0.0 V, 0 Hz 2 7
2 mV DC 500.0 mV, 0 Hz 3 6
3 mV DC 50.0 mV, 0 Hz 2 8
4 mV DC 50.0 V, 0 Hz 2 1
5 mV DC 100.0 mV, 0 Hz 2 1
6 mV DC 500.0 mV, 0 Hz 2 1
7 mV AC 5.0 mV, 700 Hz 4 2
8 mV AC 50.0 mV, 700 Hz 3 3
9 mV AC 500.0 mV, 700 Hz 3 2
10 mV AC 500.0 mV, 55 Hz 2 3
11 mV AC 50.0 mV, 55 Hz 10 6
12 mVAC 0.0 V, 0 Hz 2 6
13 VAC 0.0 V, 0 Hz 2 15
14 VAC 5.0 V, 55 Hz 3 7
15 VAC 5.0000 V, 60 kHz 3 42
16 VAC 50.0 V, 55 Hz 2 10
17 VAC 50.000 V, 100 kHz 4 94
18 VAC 500.0 V, 55 Hz 5 2
19 VAC 1000.0 V, 55 Hz 3 2