National Instruments PXI-4130, Процедура калибровки, Страница: 5 / 44

NI PXI-4130 Calibration Procedure | © National Instruments | 5
• Allow a warm-up time of at least 30 minutes after you load the NI-DCPower driver. Unless
manually disabled, the NI-DCPower driver automatically loads with the operating system
and enables the device. The warm-up time ensures that the measurement circuitry of the
NI 4130 is at a stable operating temperature.
• Use shielded copper wire for all cable connections to the device. Use twisted-pair wire to
eliminate noise and thermal offsets.
• Plug the chassis and the instrument standard into the same power strip to avoid ground
loops.
Calibration Procedures
The calibration process includes the following procedures:
1.
Initial Setup
—Install the device and configure it in Measurement & Automation Explorer
(MAX).
2.
Verification
—Verify the existing operation of the device. This procedure confirms whether
the device is operating within its specified range prior to calibration.
3.
Adjustment
—Perform an external adjustment of the device that adjusts the calibration
constants with respect to a known voltage source or current source. The adjustment
procedure automatically stores the calibration date on the EEPROM to allow traceability.
4.
Reverification
—Repeat the verification procedure to ensure that the device is operating
within its specifications after adjustment.
These procedures are described in more detail in the following sections.
Note
The complete external calibration procedure consists of verifying the
performance of the SMU, adjusting the calibration constants, and verifying
performance again after the adjustments. In some cases, a complete calibration
procedure may not be required. Refer to
Where to Go for Support
for more
information.
Initial Setup
Refer to the
NI DC Power Supplies and SMUs Getting Started Guide
for information about how
to install the software and hardware and how to configure the device in MAX.