CR1000 Manual - Campbell Scientific

Section 8. Operation
Table 60. Calibrate() Instruction Results
Array
Cal()
Element
Differential (Diff)
Single-Ended (SE)
Descriptions of Array Elements
Offset or Gain
±mV Input
Range
Integration
Typical Value
27 Gain 250 60-Hz Rejection -0.067 mV/LSB
28 SE Offset 25 60-Hz Rejection ±5 LSB
29 Diff Offset 25 60-Hz Rejection ±5 LSB
30 Gain 25 60-Hz Rejection -0.0067 mV/LSB
31 SE Offset 7.5 60-Hz Rejection ±10 LSB
32 Diff Offset 7.5 60-Hz Rejection ±10 LSB
33 Gain 7.5 60-Hz Rejection -0.002 mV/LSB
34 SE Offset 2.5 60-Hz Rejection ±20 LSB
35 Diff Offset 2.5 60-Hz Rejection ±20 LSB
36 Gain 2.5 60-Hz Rejection -0.00067 mV/LSB
37 SE Offset 5000 50-Hz Rejection ±5 LSB
38 Diff Offset 5000 50-Hz Rejection ±5 LSB
39 Gain 5000 50-Hz Rejection -0.67 mV/LSB
40 SE Offset 2500 50-Hz Rejection ±5 LSB
41 Diff Offset 2500 50-Hz Rejection ±5 LSB
42 Gain 2500 50-Hz Rejection -0.34 mV/LSB
43 SE Offset 250 50-Hz Rejection ±5 LSB
44 Diff Offset 250 50-Hz Rejection ±5 LSB
45 Gain 250 50-Hz Rejection -0.067 mV/LSB
46 SE Offset 25 50-Hz Rejection ±5 LSB
47 Diff Offset 25 50-Hz Rejection ±5 LSB
48 Gain 25 50-Hz Rejection -0.0067 mV/LSB
49 SE Offset 7.5 50-Hz Rejection ±10 LSB
50 Diff Offset 7.5 50-Hz Rejection ±10 LSB
51 Gain 7.5 50-Hz Rejection -0.002 mV/LSB
52 SE Offset 2.5 50-Hz Rejection ±20 LSB
53 Diff Offset 2.5 50-Hz Rejection ±20 LSB
54 Gain 2.5 50-Hz Rejection -0.00067 mV/LSB
8.1.2.10 Time Skew Between Measurements
Time skew between consecutive voltage measurements is a function of settling
and integration times, A/D conversion, and the number entered into the Reps
parameter of the VoltDiff() or VoltSE() instruction. A close approximation is:
Time Skew = Settling Time + Integration Time + A‐D Conversion Time 1 +
Reps/NoReps 2
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