Figure 4. DC Current Low Range Connection Configuration
OUTPUT
A
SENSE
AUX
CURRENT
V-GUARD
GROUND
NI DMM
HI SENSE
LO
Ammeter
HI
LO
V-GUARD
Calibrator
I
LO
HI
LO
Guard
Guard
Open
To LO
HI
Sense
(4 Wire)
Input
(2 Wire)
I
LO
Guard*
*Set Guard Switch to Open
7.
Verify the accuracy for each configuration in the following table:
a)
Set the PXIe-4081 and the ammeter to the listed configuration and commit.
Configure the ammeter for a single acquisition.
b)
Set the Calibrator to the listed configuration and allow it to settle.
c)
Acquire the specified measurement and compare the difference between the
PXIe-4081 and the ammeter to the limits.
d)
Set the calibrator to
Standby
if you have completed all testpoints in a DMM range.
PXIe-4081 Calibration Procedure
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© National Instruments
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