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NI PXI-5422 Calibration Procedure 12 ni.com
External Calibration Requirements
This section describes the test equipment and test conditions required for
calibration.
Test Equipment
External calibration requires different equipment for each applicable
specification. Refer to Table 2 for a list of equipment.
Test Conditions
Follow these guidelines to optimize the connections and the environment
during calibration:
• Keep connections to the NI PXI-5422 short.
• Keep relative humidity below 80%.
• Maintain a temperature between 18 °C and 28 °C.
• Observe the 15-minute warm-up time.
Table 2. Equipment Required for Calibrating the NI PXI-5422
Instrument
Applicable
Specification
Minimum
Specifications
Recommended
Instrument
Digital multimeter
(DMM)
DC gain and offset DC accuracy ≤ ±50 ppm
Resolution ≤1 µV
NI PXI-4070
Agilent HP 34401A
Keithley 2000
Male banana to
female BNC adapter
— —
Male BNC to
female SMB cable
50 Ω, RG-223 —
Spectrum analyzer or
frequency meter
Frequency accuracy Ability to measure
10 MHz or higher
sine waves
Frequency accuracy
to ±500 ppb
NI PXI-5660
Agilent HP 8560E
Agilent HP 53131A
or HP 53132A
with timebase option
001, 010, or 012
Male BNC to
female SMB cable
50 Ω, RG-223 —