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RM-4339 Calibration Procedure
2.
Acquire voltage measurements from all channels with the NI PXIe-4339.
a.
Create and configure an AI voltage measurement according to the values found in
Table 4.
b.
Start the task by calling DAQmx Start Task.
c.
Average the readings that you acquired and record the vales as
VoffsetPXIe-4339Chx
,
where
x
is the channel number.
d.
Clear the task by calling DAQmx Clear Task.
3.
Remove the TB-4339/B/C from the SH96-96-2 cable and connect the SH96-96-2 cable to
the 96-pin connector on the back of the RM-4339.
4.
Connect an RJ50 cable to each channel with AI+ (pin 2) and AI- (pin 3) connected to
T- (pin 9).
5.
Acquire voltage measurements from all channels with the NI PXIe-4339.
a.
Create and configure an AI voltage measurement according to the values found in
Table 4.
b.
Start the task by calling DAQmx Start Task.
c.
Average the readings that you acquired and subtract
VoffsetPXIe-4339Chx
from the
average values for each channel.
Table 4.
AI Voltage Mode Setup
Configuration
Value
Channel Name
Dev1/ai0:7
Measurement Type
AI Voltage
Maximum Value
0.01
Minimum Value
-0.01
Units
Volts
Input Terminal Configuration
Default
Sample Mode
Finite Samples
Sample Clock Rate
100
Samples per Channel
100
