NI 9222/9223 Calibration Procedure
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© National Instruments
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3
Test Conditions
The following setup and environmental conditions are required to ensure the NI 9222/9223
meets published specifications.
•
Keep connections to the NI 9222/9223 as short as possible. Long cables and wires act as
antennas, picking up extra noise that can affect measurements.
•
For the NI 9222/9223 screw terminal, use shielded copper wire for all cable connections to
the device. Use twisted-pairs wire to eliminate noise and thermal offsets.
•
Use 50
Ω
BNC coaxial cable to connect signals to NI 9222/9223 with BNC.
•
Verify that all connections to the NI 9222/9223 are secure.
•
Maintain an ambient temperature of 23 ±5 °C. The NI 9222/9223 temperature will be
greater than the ambient temperature.
•
Keep relative humidity below 80%.
•
Allow a warm-up time of at least 10 minutes to ensure that the NI 9222/9223 measurement
circuitry is at a stable operating temperature.
Initial Setup
Complete the following steps to set up the NI 9222/9223.
1.
Install NI-DAQmx.
2.
Make sure the NI cDAQ-9178 power source is not connected.
3.
Install the module in slot 8 of the NI cDAQ-9178 chassis. Leave slots 1 through 7 of the
NI cDAQ-9178 chassis empty.
4.
Connect the NI cDAQ-9178 chassis to your host computer.
5.
Connect the power source to the NI cDAQ-9178 chassis.
6.
Launch Measurement & Automation Explorer (MAX).
7.
Right-click the device name and select
Self-Test
to ensure that the module is working
properly.
