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NI 9234 Calibration Procedure
IEPE Compliance Voltage Verification
Complete the following procedure to determine the As-Found status of the NI 9234.
1.
Connect the NI 9234 to the DMM as shown in Figure 6.
Figure 6.
IEPE Compliance Voltage Verification Connections to the NI 9234
(IEPE Source Short Circuit Current Measurement)
2.
Configure the DMM for a DC current measurement in the lowest appropriate range to
measure 2 mA.
3.
Measure IEPE Source short circuit current.
a.
Create an AI voltage task on the NI 9234 according to Table 16.
b.
Configure the AI voltage task timing according to Table 17.
c.
Start the task.
d.
Record the DMM measurement DMM
Current
.
e.
Perform the following calculation using the recorded DMM
Current
value.
SMU
SourceCurrent
= -(0.95 ×
DMM
Current
)
4.
Record the calculation result as SMU
SourceCurrent
.
Table 16.
NI 9234 Configuration for IEPE Voltage Verification
Channel Configuration
IEPE Excitation
AC Coupled with IEPE
Enabled
Table 17.
NI 9234 Timing Configuration
Sample Mode
Rate (kHz)
Continuous Samples
51.2
DMM
NI 92
3
4
+
AI
x
HI
LO
–
Содержание NI 9234
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