National Instruments NI 5422 - Manual (Page 29)

© National Instruments Corporation 29 NI 5422 Specifications
Calibration
Table 11.
Specification Value Comments
Self-Calibration An onboard, 24-bit ADC and precision voltage reference are
used to calibrate the DC gain and offset. The self-calibration
is initiated by the user through the software and takes
approximately 90 seconds to complete.
—
External
Calibration The External Calibration calibrates the VCXO, voltage
reference, DC gain, and offset. Appropriate constants are
stored in nonvolatile memory. —
Calibration
Interval Specifications valid within two years of External
Calibration. —
Warm-up Time 15 minutes —