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Appendix A: Specifications
A–20
VX4101A MultiPaq Instrument User Manual
Table A–51: Resistance Accuracy Specifications for 2-Second Aperture
Range
Source Current 24 Hour 90 Day 1 Year
Temp
Coefficient / _C
30 W 1 mA 0.017% + 8 mW
(9 mW)
0.023% + 8 mW
(9 mW)
0.037% + 8 mW
(9 mW)
0.007% + 1.5 mW
300 W 1 mA 0.010% + 14 mW
(15 mW)
0.015% + 14 mW
(15 mW)
0.020% + 14 mW
(15 mW)
0.007% + 2.5 mW
3 kW 1 mA 0.010% + 70 mW
(80 mW)
0.015% + 70 mW
(80 mW)
0.020% + 70 mW
(80 mW)
0.007% + 5 mW
30 kW 100 mA 0.010% + 700 mW
(800 mW)
0.015% + 700 mW
(800 mW)
0.020% + 700 mW
(800 mW)
0.007% + 50 mW
300 kW 10 m A 0.010% + 7 W
(8 W)
0.015% + 7 W
(8 W)
0.020% + 7 W
(8 W)
0.007% + 500 mW
3 MW 1 mA 0.040% + 70 W
(80 W)
0.060% + 70 W
(80 W)
0.080% + 70 W
(80 W)
0.012% + 20 W
30 MW 100 nA 0.300% + 700 W
(800 W)
0.400% + 700 W
(800 W)
0.500% + 700 W
(800 W)
0.050% + 200 W
300 MW 100 nA (.3 + .03R)% + 7 kW
(8 kW)
(.4 + .04R)% + 7 kW
(8k W)
(.5 + .05R)% + 7 kW
(8 kW)
(.05 + .005R)% +
2000 W
NOTE. Values shown in parenthesis above are for a 200 ms aperture.
NOTE. The value R in the 300 MW range specification is the measured resistance
in MW.
Table A–52: Resistance Accuracy Specifications for 1 Millisecond Aperture
Range
Source
Current
24 Hour 90 Day 1 Year
Temp
Coefficient / _C
30 W 1 mA 0.037% + 15 mW
(12 mW)
0.037% + 15 m W
(12 mW)
0.037% + 15 mW
(12 mW)
0.007% + 1.5 mW
300 W 1 mA 0.015% + 30 mW
(20 mW)
0.020% + 30 mW
(20 mW)
0.025% + 30 mW
(20 mW)
0.007% + 2.5 mW
3 kW 1 mA 0.015% + 150 mW
(100 mW)
0.020% + 150 mW
(100 mW)
0.025% + 150 mW
(100 mW)
0.007% + 5.0 mW
30 kW 100 mA 0.015% + 1.5 W
(1.0 W)
0.020% + 1.5 W
(1.0 W)
0.025% + 1.5 W
(1.0 W)
0.007% + 50 mW
300 kW 10 mA 0.030% + 15 W
(10 W)
0.030% + 15 W
(10 W)
0. 040% + 15 W
(10 W)
0.007% + 500 mW