Note
If you do not use the resistance modes for any measurements or the accuracy
of these modes is irrelevant, you can skip this section and go directly to the
Adjusting AC Voltage
section.
Complete the following steps to adjust the resistance of the device:
1.
Connect the PXIe-4080/4082 to the calibrator using low thermal EMF cables as shown in
on page 10.
2.
Wait two minutes for thermal EMF to stabilize.
3.
Adjust the resistance calibration with each configuration in the following table:
a)
Commit the DMM to the specified range.
b)
Configure the calibrator as specified.
c)
Wait the specified settling time.
d)
Call niDMM Cal Adjust Gain VI or the
niDMM_CalAdjustGain
function with
the specified parameters.
DMM Settings
Calibrator Settings
Minimum
Settling
Time
Function
Range
Input
Resistance
Expected
Value
Resistance
Ext.
Sense
Comp
4-wire
resistance
10 kΩ
N/A
(value from
calibrator)
10 kΩ
On
None 1 s
(value from
calibrator)
0 Ω
1 s
100 kΩ N/A
(value from
calibrator)
100 kΩ
10 s
(value from
calibrator)
0 Ω
1 s
4.
Call the niDMM Cal Adjust Misc VI or the
niDMM_CalAdjustMisc
function with
Type
set to
NIDMM_EXTCAL_MISCCAL_RREF
.
5.
Adjust the resistance calibration with each configuration in the following table:
a)
Commit the PXIe-4080/4082 to the specified range.
b)
Configure the calibrator as specified.
c)
Wait the specified settling time.
d)
Call niDMM Cal Adjust Gain VI or the
niDMM_CalAdjustGain
function with
the specified parameters.
20
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PXIe-4080/4082 Calibration Procedure