National Instruments SC-2040 Manual Do Utilizador
© National Instruments Corporation
A-1
SC-2040 User Manual
Appendix A
Specifications
Specifications
This appendix lists the specifications for the SC-2040. These are typical at 25
°
C unless otherwise stated. The
operating temperature range is 0
°
to 50
°
C.
Analog Input
Input Characteristics
Number of channels
8 differential
Input signal ranges
Board Gain
(Hardware
Selectable)
Board Range
Max Output Range
±
10 V
1
±
10 V
10
±
1 V
100
±
100 mV
200
±
50 mV
300
±
33.3 mV
500
±
20 mV
600
±
16.67 mV
700
±
14.29 mV
800
±
12.5 mV
Input coupling
DC
Max working voltage
(signal + common mode)
Average of 2 inputs should remain within
±
7 V of ground
Overvoltage protection
±
30 V powered on,
±
15 V powered off
Inputs protected
ACH<0..7>
Transfer Characteristics
Offset error
Pregain error after calibration
±
100
µ
V max
Postgain error after calibration
±
2 mV max
Gain error and nonlinearity
Gain
(DIP-switch-
selectable)
Max
Gain Error
Max
Gain Tempco
Max
Nonlinearity
1
±
0.05%
±
25 ppm/
°
C
±
0.01%
10
±
0.1%
±
25 ppm/
°
C
±
0.01%
100
±
0.2%
±
45 ppm/
°
C
±
0.02%
200
±
0.4%
±
60 ppm/
°
C
±
0.02%
300
-0.3%,
±
0.6%
±
80 ppm/
°
C
±
0.03%
500
±
1.0%
±
100 ppm/
°
C
±
0.04%
600
-0.2%,
±
1.5%
±
120 ppm/
°
C
±
0.05%
700
-0.1%,
±
2.0%
±
150 ppm/
°
C
±
0.06%
800
-0.3%,
±
3.0%
±
200 ppm/
°
C
±
0.07%