SCXI-1303 Terminal Block Calibration Procedure
2
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Equipment and Other Test Requirements
This section describes the equipment, software, documentation, and test
conditions required for verifying the performance of your SCXI-1303
terminal block.
Test Equipment
Verification requires a high-precision voltage source with at least 50 ppm
accuracy, a multiranging 5 1/2 digit digital multimeter (DMM) with
15 ppm accuracy, and a thermometer that is accurate to within 0.1
°
C.
National Instruments recommends you use the following instruments for
verifying the performance of your SCXI-1303 terminal block:
•
Calibrator—Fluke 5700A
•
DMM—NI 4060 or HP 34401A
If these instruments are not available, use the accuracy requirements listed
above to select a substitute calibration standard.
Software and Documentation
You can find all the necessary information to verify the performance
of the SCXI-1303 in this verification procedure. No other software or
documentation is required. If you would like more information on the
SCXI-1303, refer to the SCXI-1303 Terminal Block Installation Guide,
which you can download from the National Instruments Web site at
ni.com/manuals
Test Conditions
Follow these guidelines to optimize the connections and the environment
during verification:
•
Keep connections to the SCXI-1303 terminal block short. Long cables
and wires act as antennae, picking up extra noise that can affect
measurements.
•
Use shielded copper wire for all cable connections to the device.
Use twisted-pair wire to eliminate noise and thermal offsets.
•
Keep relative humidity below 80%.
•
Maintain a temperature between 15 and 35
°
C.
