NI 9212 Calibration Procedure
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© National Instruments
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5
Test Conditions
The following setup and environmental conditions are required to ensure the NI 9212 meets
published specifications.
•
Keep connections to the NI 9212 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 NI 9212 are secure.
•
Use shielded copper wire for all cable connections to the NI 9212. Use twisted-pairs wire
to eliminate noise and thermal offsets.
•
Maintain an ambient temperature of 23 °C ±5 °C. The NI 9212 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 NI 9212 measurement
circuitry is at a stable operating temperature.
Initial Setup
Refer to the
NI cDAQ-9174/9178 Quick Start
for information about how to install the software
and hardware and how to configure the device in Measurement & Automation Explorer (MAX).
Complete the following steps to set up the NI 9212.
1.
Install NI-DAQmx.
Note
Ensure that you install NI-DAQmx 15.1 or later. Calibrating the NI 9212
using NI-DAQmx 14.5 or earlier may result in inaccurate readings.
2.
Make sure the NI cDAQ-9178 power source is not connected.
3.
Connect the NI cDAQ-9178 to the system safety ground.
a.
Attach a ring lug to a 14 AWG (1.6 mm) wire.
b.
Connect the ring lug to the ground terminal on the side of the NI cDAQ-9178 using
the ground screw.
c.
Attach the other end of the wire to the system safety ground.
4.
Install the module in slot 8 of the NI cDAQ-9178 chassis. Leave slots 1 through 7 of the
NI cDAQ-9178 chassis empty.
5.
Connect the NI cDAQ-9178 chassis to your host computer.
6.
Connect the power source to the NI cDAQ-9178 chassis.
7.
Launch Measurement & Automation Explorer (MAX).
8.
Right-click the device name and select
Self-Test
to ensure that the module is working
properly.
