National Instruments PXI-4110 User Manual

12 | ni.com | NI PXI-4110 Calibration Procedure
Verifying Current Measurement Accuracy
Note Program the NI 4110 in DC Voltage mode for this test.
Note Set the Current Limit and the Current Limit Range to the values in the
Current Range column of Table 8.
To verify current measurement accuracy, compare a set of voltage setpoints as measured by an
external DMM to the measured voltage reported by the NI 4110. Connect an NI APS-4100
auxiliary power supply for this verification procedure. Refer to the following figure for the
necessary connections.
Figure 3. Current Measurement Connection Diagram
2 -16 20 mA 1
*
25,000 0.000400 ±0.000060
2 2,000 0.005000 ±0.000068
3 1,000 0.010000 ±0.000075
4 670 0.015000 ±0.000083
5 500 0.020000 ±0.000090
*
Wait 15 s for the output of the NI 4110 to settle.
Table 7. NI 4110 Output Parameters and Test Limits for Current
Programming Accuracy Verification (Continued)
Channel(s)
Output
(V)
Current
Range
Iteration
Equivalent
Resistance
(Ω)
Output
(A)
Test Limit
(A)
Load
+
–
NI PXI-4110
HI
LO
DMM
Current
Mode
+
–
Auxiliary Power
Supply
NI APS-4100
+
–
AUX IN +
AUX IN –

National Instruments PXI-4110 Specifications

General

Number of Channels	3
+20 V Channel Maximum Current	1 A
+20 V Channel Maximum Power	20 W
-20 V Channel Maximum Current	1 A
-20 V Channel Maximum Power	20 W
+6 V Channel Maximum Current	5 A
+6 V Channel Maximum Power	30 W
Output Voltage Programming Resolution	1 mV
Output Current Programming Resolution	1 mA
Operating Temperature	0 °C to 55 °C
Storage Temperature	-20 °C to 70 °C
Relative Humidity	10% to 90%, noncondensing
Output Type	DC
Communication Interface	PXI
PXI Supply Current	1 A
Output Voltage Range	-20 V to +20 V
Output Current Range	+6 V: 0 A to 5 A
Dimensions	3U