Fluke 5700A Series II Service Manual page 123

Divider 5700A
Setting Range
0.1V 0.22V
1V 2.2V
1V 11V
10V 11V
10V 22V
100V 220V
1000V 1100V
0.1V 0.22V
1V 2.2V
10V 11V
1: Mathematically, the true 5700A/5720A Series II output programmed is the certified value of the
reference standard divided by the reference standard nominal value, multiplied by the required
5700A/5720A Series II nominal output. In other words, the 5700A/5720A Series II output is always
programmed for the nominal output adjusted up or down by the same percentage as the certified value
of the reference standard.
2: On the 752A 0.1 and 1V ranges, the null detector polarity is reversed. A low input (5700A/5720A
Series II output) causes a positive null detector reading.
3: Use Range Lock to obtain 1V on 11V and 10V on 22V range. Deactivate Range Lock before setting
the next voltage output.
4: Line regulation can be verified at this time by adjusting the autotransformer for a 10% change in line
voltage. The null detector reading must remain constant within 1 V.
Table 3-19. DC Voltage Test Record for 5700A
5700A Null Detector
Output Reading( V)
(1)
0.1V
1V
1V (3)
10V (4)
10V (3)
100V
1000V
-0.1V
-1V
-10V
Determining Test Limits for Other Calibration Intervals
Null Det Limit
( V)
(2)
1.45 (2)
7.2 (2)
9 (2)
54
58
70
86
1.45 (2)
7.2 (2)
54
Calibration and Verification
Meter Limit
Rattle ( V)
NA
0.55
2.2
3.5
5.5
7.5
4.5
NA
0.55
3.5
3
3-53