Self-calibration adjusts the PXIe-4150 for variations in the module environment. The PXIe-4150 modules are externally calibrated at the factory. However, you should perform a complete self-calibration after you install the module.

Note The only supported values for the Self Calibration Persistence property and the NIDCPOWER_ATTR_SELF_CALIBRATION_PERSISTENCE attribute are Write to EEPROM and NIDCPOWER_ATTR_VAL_WRITE_TO_EEPROM, respectively. This setting saves the calibration data to the onboard EEPROM, so the corrections survive power cycling and device resetting. Because EEPROM has a limited number of write cycles, NI recommends that you save your self-calibration data to EEPROM no more than once per day.
  1. Install the PXIe-4150 and let it warm up for the recommended warm-up time listed in the PXIe-4150 Specifications.
    Note Warm up begins when the PXI chassis has been powered on and the operating system has completely loaded.
  2. Self-calibrate the PXIe-4150 by clicking the Self-Calibrate button in MAX or calling niDCPower Cal Self Calibrate VI (niDCPower_CalSelfCalibrate).
    Note Low energy transients can appear at the output terminals of your PXIe-4150 during certain situations, such as power-up, power-down, device driver loading, and self-calibration.