Resistance Dc Offset Measurement - Fluke 5500A Operator's Manual

Resistance Accuracy (cont)
Nominal Value ( )
10.9 M
11.9 M
19 M
30 M
33 M
109 M
119 M
290 M [1]
[1] This test can be performed using the HP 3458A in the 10 M
parallel with the 5500A output. Using exactly 10 M , the nominal value is 9.66667 M .

7-11. Resistance DC Offset Measurement

This verification test is optional. It is not necessary to guarantee the full
calibration of the instrument. However, it may be useful when
troubleshooting an instrument when other functions and/or parameters are
incorrect.
The Resistance DC Offset Measurement test checks the dc offset of the amplifiers used
in the Synthesized resistance. Prior to performing this test, make sure you zero the
5500A Calibrator following the "Zeroing the Calibrator" procedure in Chapter 4. Set the
output to 100 , COMP OFF, and measure the NORMAL terminals with a dc meter (see
Table 7-2).
Range Nominal Value
100 0.000 mV
Measured Value ( )
Note
Measured Value (V)
Performing a Calibration Check
Deviation % 90-Day Spec. (m
range and the Fluke 742A-10M in
Deviation %
Maintenance
or %)
0.050%
0.080%
0.078%
0.077%
0.415%
0.406%
0.413%
0.403%
8-Hour Spec.
0.010 mV
7
7-11