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PXIe-4309 Calibration Procedure
Test Conditions
The following setup and environmental conditions are required to ensure the PXIe-4309 meets
published specifications.
•
Keep connections to the PXIe-4309 as short as possible. Long cables and wires act as
antennas, picking up extra noise that can affect measurements.
•
Verify that all connections to the terminal block are secure.
•
Use shielded copper wire for all cable connections to the TB-4309. Use twisted-pair wire
to eliminate noise and thermal offsets.
•
Maintain an ambient temperature of 23 °C ±5 °C. The PXIe-4309 temperature will be
greater than the ambient temperature.
•
Keep relative humidity below 80%.
•
Allow a warm-up time of at least 15 minutes to ensure that the PXIe-4309 measurement
circuitry is at a stable operating temperature.
•
Ensure that the PXI/PXI Express chassis fan speed is set to HIGH, that the fan filters are
clean, and that the empty slots contain filler panels. For more information, refer to the
Maintain Forced-Air Cooling Note to Users
document available at
.
•
Allow adequate warm-up time for all of the instruments and equipment according to the
manufacturer instructions.
Initial Setup
Refer to the
PXIe-4309 and TB-4309 (ST)/TB-4309 (MT) Getting Started Guide and Terminal
Block Specifications
for information about how to install the software and hardware and how to
configure the device in Measurement & Automation Explorer (MAX).
Note
When a device is configured in MAX, it is assigned a device identifier. Each
function call uses this identifier to determine which DAQ device to verify or to verify
and adjust. This document uses
Dev1
to refer to the device name. In the following
procedures, use the device name as it appears in MAX.
Self Calibration
The PXIe-4309 includes a temperature controlled internal reference and self-calibration
circuitry used during self-calibration to adjust for drift over time and temperature.
Note
No signal connections are needed for self-calibration.
Complete the following steps to self-calibrate the device.
1.
Wait 15 minutes for the device to warm up.
2.
Launch MAX.
