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Table 3-17. 5700A Resistance Test Record (cont)
Std
Res
Value
DMM Std
Res Rdg
DMM
Error
DMM
UUT Res
Value
UUT True
Res Value
UUT Dev. Uncert.
std
Spec
(±ppm)
TUR GB
Factor
Test
Limit
(±ppm)
Max
Difference of
Characterized to
Nominal Value
1.9 MΩ (1) ±19 1.89962M to 1.90038M
10 MΩ 12.0 ±37 3.07 0.982 36.3 9.997M to 10.003M
19 MΩ) 21.9 ±47 2.15 0.942 44.3 18.9943M to 19.0057M
100 MΩ
(2)
±110 99.95M to 100.05M
1: Not necessary to test due to 5720A Series II internal calibration process. Uncertainties and test limits are shown for other available 742A Standard Resistors.
2: Due to extremely slow settling time (approximately 5 minutes to 0.005% and sensitivity to any nearby movement, use of the DMM to test 100 megohms to the
specified 0.01% uncertainty is not practical and therefore is not recommended. For those who wish to test it, a suitable way is to use an ESI SR 1050 10M/step
Hamon-type Resistance Transfer Standard and use it in conjunction with an ESI 242-series bridge to effect the measurement to the required uncertainty.