NI 9218 Calibration Procedure
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© National Instruments
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5
Initial Setup
Complete the following steps to set up the NI 9218.
1.
Install NI-DAQmx.
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.
9.
Ensure that the ambient temperature of your test environment is 23 °C ±5 °C.
Verification
This section provides instructions for verifying the NI 9218 specifications. The following
performance verification procedures describe the sequence of operations and test points required
to verify the NI 9218 and assumes that adequate traceable uncertainties are available for the
calibration references.
Note
Each verification procedure requires the software configuration of a
measurement adapter. The software configuration is done through Measurement &
Automation Explorer. See KB 6T8GKTUX for how to configure your measurement
adapter in MAX.
Caution
Each verification may have different wiring schemes. Consult the
diagram on your measurement adapter or Figure 10 and 11 for the most appropriate
connection diagram.
Caution
The analog inputs on the NI 9218 are not grounded (floating). Ensure that
a single point in the test system is connected to ground to prevent the entire system
from floating.
