NI 9212 Calibration Procedure
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© National Instruments
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3
Test Equipment
Table 1 lists the equipment recommended for the performance verification and adjustment
procedures. If the recommended equipment is not available, select a substitute using the
requirements listed in Table 1.
Table 1.
Recommended Equipment
Equipment
Recommended
Model
Where Used
Requirements
Calibrator
Fluke 5522A
locked in the
3.3 V range
Voltage
Verification,
Voltage
Adjustment,
CJC
Adjustment
A high-precision voltage source with
an accuracy of
≤
70 ppm when
sourcing up to 50 µA.
Fluke 5522A
CJC
Verification
A high-precision resistance source
with 2-wire compensation and an
accuracy of at least
• 660 ppm at 1,099.999
Ω
range,
• 18 ppm at 32,999.99
Ω
range,
• 30 ppm at 109,999.9
Ω
range.
If the resistance source does not have
2-wire compensation, the leadwire
resistance must be included in the
total resistance source accuracy.
Chassis
NI cDAQ-9178
All
—
Connection
Accessory
NI CAL-9212
All
—
Digital
Multimeter
NI PXI-4071
CJC
Adjustment
A multiranging 7.5 digit digital
multimeter with an accuracy of at
least
• 8 ppm at 100 mV range
• 6 ppm at 10 V range
