Appendices
Specifications
A
A-11
PAI Module 4-Wire Resistance Measurement Specifications
The following tables provide PAI Module specifications for the 4-wire resistance
measurement function. The 4-wire measurements use 2 input channels a decade
apart, e.g., channels 4 and 14.
Table A-13. PAI Module 4-Wire Resistance Temperature Coefficient
Specification Characteristic
Temperature Coefficient
Add 1/10th the 90 day specification per
°
C
above 28
°
C or below 18
°
C.
Accuracy at -20
°
C
Multiply the -10
°
C to +60
°
C accuracy
specification by 2. After 1 hour warm-up. For
accuracy between -10
°
C and -20
°
C,
interpolate linearly.
Table A-14. PAI Module 4-Wire Resistance Range and Resolution Specifications
Resolution Current
Full Scale
Maximum Voltage
Range Slow Fast
Applied
Voltage Applied
by
Instrument
300
Ω
1
m
Ω
3m
Ω
1 mA
300 mV
3.5 V
3 k
Ω
10
m
Ω
30
m
Ω
100
µ
A
300 mV
3.5 V
30 k
Ω
100
m
Ω
300
m
Ω
10
µ
A
300 mV
3.5 V
300 k
Ω
1
Ω
3
Ω
10
µ
A
3.0 V
3.5 V
3 M
Ω
10
Ω
30
Ω
1
µ
A
3.0 V
3.5 V
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