NI 9215 Calibration Procedure
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© National Instruments
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3
Test Equipment
Table 1 lists the equipment required for the performance verification and adjustment procedures.
If the recommended equipment is not available, select a substitute using the requirements listed
in Table 1.
Test Conditions
The following setup and environmental conditions are required to ensure the NI 9215 meets
published specifications.
•
Keep connections to the NI 9215 as short as possible. Long cables and wires act as
antennae, picking up extra noise that can affect measurements.
•
Verify that all connections to the NI 9215 are secure.
•
Use shielded copper wire for all cable connections to the NI 9215. Use twisted-pairs wire
to eliminate noise and thermal offsets.
•
Maintain an ambient temperature of 23 °C ±5 °C. The NI 9215 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 9215 measurement
circuitry is at a stable operating temperature.
Initial Setup
Complete the following steps to set up the NI 9215.
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.
Table 1.
Recommended Equipment
Equipment
Recommended
Model
Requirements
Calibrator
Fluke 5700A
Use a high-precision voltage source with an
accuracy
≤
15 ppm and an output impedance of
≤
50
Ω
.
Chassis
NI cDAQ-9178
—
Screw-Terminal
Connection
Accessory
NI 9932
—
