niDMM_RestoreLastExtCalConstants

ViStatus = niDMM_RestoreLastExtCalConstants(ViSession Instrument_Handle)

Purpose

Reverts the device to the calibration constants from the last complete external calibration. This function recovers the hardware if a fatal system error should occur during an external or self-calibration procedure.

For the NI 4070/4071/4072 only, after calling this function, you should call niDMM_SelfCal before taking measurements with the device to adjust the device for any temperature drifts since the last external calibration.

Note  The NI 4050 and NI 4060 are not supported.

Parameters

Input
Name	Type	Description
Instrument_Handle	ViSession	Identifies a particular instrument session. You obtain the Instrument_Handle parameter from niDMM_init or niDMM_InitWithOptions. The default is None.

Return Value

Name	Type	Description
Status	ViStatus	Reports the Status of this operation. To obtain a text description of the status code, call niDMM_error_message. To obtain additional information concerning the error condition, use niDMM_GetError.