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National Instruments PXI-4130 User Manual

National Instruments PXI-4130
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32 | ni.com | NI PXI-4130 Calibration Procedure
Adjustment
Adjustment improves the accuracy of the NI 4130 and updates the calibration date and
temperature in the EEPROM. Perform an adjustment once a year or when the accuracy of
NI 4130 is outside the calibration test limits.
Adjustment corrects the following NI 4130 specifications:
Voltage programming accuracy
Voltage measurement accuracy
Current programming accuracy
Current measurement accuracy
Considerations
The figure below represents the general flow of an application used to adjust a range on a single
channel of the NI 4130.
Figure 11. LabVIEW Block Diagram Illustrating Adjustment on the NI 4130
1. Initialize external calibration session: To adjust the NI 4130, call the
niDCPower Initialize External Calibration VI (niDCPower_InitExtCal function) to
initiate a special type of NI-DCPower session. The default calibration password is NI.
2. Configure the instrument: Call a series of standard NI-DCPower VIs/functions specific
to the adjustment of a particular range. These calls vary depending on the requirements of
the range being adjusted. Typical operations in this step include configuring ranges, setting
output levels, or taking measurements. Measurements made by external equipment
required for adjustment also occur during this step. For assistance configuring the NI 4130
to a particular output or measurement mode, refer to the example programs installed with
NI-DCPower.
3. Call niDCPower Cal Adjust function(s): When the measurements required for
adjustment of a range are complete, call one of the niDCPower Cal Adjust VIs or functions
to calculate new calibration coefficients and store them in memory on the host. Calling
these VIs/functions does not commit the new coefficients to hardware.
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National Instruments PXI-4130 Specifications

General IconGeneral
BrandNational Instruments
ModelPXI-4130
CategoryMeasuring Instruments
LanguageEnglish

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