Multifunction DAQ and SCXI Signal Conditioning
Accuracy Specifications Overview
Multifunction DAQ Accuracy Specifications
Module
SCXI-1102
SCXI-1112
SCXI-1125
Empirical Accuracy
±0.25 ˚C at 250 ˚C
±24 mV at 9.5 V
±0.21 ˚C at 300 ˚C
±2.2 mV at 2 V
Table 1. Possible Empirical Accuracy with System Calibration
Absolute Accuracy
Nominal Range (V)
Positive FS
Negative FS
10.0
-10.0
5.0
-5.0
2.5
-2.5
1.0
-1.0
0.5
-0.5
0.25
-0.25
0.1
-0.1
0.05
-0.05
10.0
0.0
5.0
0.0
2.0
0.0
1.0
0.0
0.5
0.0
0.2
0.0
0.1
0.0
% of Reading
24 Hours
1 Year
0.0354
0.0371
0.0054
0.0071
0.0354
0.0371
0.0354
0.0371
0.0354
0.0371
0.0404
0.0421
0.0454
0.0471
0.0454
0.0471
0.0054
0.0071
0.0354
0.0371
0.0354
0.0371
0.0354
0.0371
0.0404
0.0421
0.0454
0.0471
0.0454
0.0471
System Noise (mV)
Single Point
Averaged
981.0
87.0
491.0
43.5
245.0
21.7
98.1
8.7
56.2
5.0
32.8
3.0
22.4
2.1
19.9
1.9
491.0
43.5
245.0
21.7
98.1
8.7
56.2
5.0
39.8
3.0
22.4
2.1
19.9
1.9
Temp Drift
(%/°C)
0.0006
0.0001
0.0006
0.0006
0.0006
0.0006
0.0006
0.0006
0.0001
0.0006
0.0006
0.0006
0.0006
0.0006
0.0006
Absolute Accuracy
at Full Scale ((((mV
at Full Scale (mV)
4.747
0.876
1.190
0.479
0.243
0.137
0.064
0.035
1.232
2.119
0.850
0.428
0.242
0.111
0.059
Relative Accuracy
Resolution (µV)
Single Point
Averaged
1145.0
115.0
573.0
57.3
286.0
28.6
115.0
11.5
66.3
6.6
39.2
3.9
27.7
2.8
25.3
2.5
573.0
57.3
286.0
28.6
115.0
11.5
66.3
6.6
48.2
3.9
27.7
2.8
25.3
2.5
Offset (mV)
Offset (µV)
947.0
476.0
241.0
99.2
52.1
28.6
14.4
9.7
476.0
241.0
99.2
52.1
28.6
14.4
9.7
Table 2. NI PCI-6052E Analog Input Accuracy Specifications
Data Acquisition and
Signal Conditioning
Note:
Accuracies are valid for measurements following an
internal (self) E Series calibration. Averaged numbers assume
averaging of 100 single-channel readings. Measurement accuracies
are listed for operational temperatures within ±1 °C of internal
calibration temperature and ±10 °C of external or factory-calibration
temperature. One-year calibration interval recommended. The
absolute accuracy at full scale calculations were performed for a
maximum range input voltage (for example, 10 V for the ±10 V
range) after one year, assuming 100 point averaging of data.
196
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