National Instruments SCC-TC Series, Руководство пользователя

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© National Instruments Corporation 11 SCC-TC Series Thermocouple Input Modules User Guide
Specifications
These specifications are typical at 25 °C unless otherwise stated.
Analog Input
Number of input channels ...................... 1 DIFF
Input signals ........................................... Thermocouples of types B, E, J,
K, N, R, S, and T
Input signal range
................................... ±
100 mV
Input impedance ..................................... 10 M
Ω
powered on,
10 k
Ω
powered off or overload
Bandwidth .............................................. 2 Hz
Amplifier Characteristics
Open thermocouple detection current .... 250 nA max
1
(assuming floating thermocouple)
Common-mode rejection ratio ............... 110 dB min
1
Output range
........................................... ±
10 V max
1
Transfer Characteristics
Gain ........................................................ 100
Gain error
............................................... ±
0.08% max
1
Gain stability
.......................................... ±
0.0005%/
°
C max
2
Offset error
............................................. ±
5
µ
V max (post calibration)
1
Offset stability
........................................ ±
0.6
µ
V/
°
C max
2
Nonlinearity
........................................... ±
0.004% max
1
Recommended warm-up time ................ 5 min
1
Temperature range is 23 °C
±
5 °C.
2
Temperature range is 0 to 50 °C.