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NI 9144 User Guide and Specifications
38
ni.com
Note
LSB weight is referred to as Gain in the object dictionary.
The calibration data is stored in a U32 array, though each Offset field 
(subindex 1, 3, 5, and so on) should be interpreted as a signed value.
Use the calibration coefficients with the following equation to generate 
correct data:
R
raw
(bits) = data returned by the NI 9217 in bits
R
corrected 
= calibrated resistance reading
NI 9219
Table 31.  NI 9217 Calibration Coefficients
Coefficient
Representation
Units
LSB Weight
Unsigned
p
Ω/LSB
Offset
Signed
μΩ
Table 32.  NI 9219 Vendor Configuration Extensions
Index
Sub
Type
R/W
Description
0x2001
0
ARR:U32
Command List = 33
1
R
Command Count = 1..32, default = 32
2..33
R/W
Configuration Command
0x2002
1
ARR:U32
R
Error Status
0x2005
0
U32
R/W
ADC Format
R
corrected
R
raw
(
)
R
raw
bits
(
)∗ LSB
weight
p
Ω
bits
---------
⎞∗10
12
Ω
p
Ω
-------
Offset
μΩ
(
)∗10
6
Ω
μΩ
--------
=