:CALibrate:DARK:CHANnel:STARt

Flex Apps:
FlexDCA
FlexRT
Dark Cal Commands

Command Syntax

:CALibrate:DARK:CHANnelN:STARt

Where N identifies a specific channel and must be selected from {1:8}{A|B|C|D}. For example, CHANnel3C.

Description

Starts a dark calibration on the indicated optical channel. A dark calibration is used to calibrate extinction-ratio measurements. Be sure to indicate the desired channel, for example CHAN1B. The *OPC? query should be used to detect when a portion of the calibration has completed. Use the :CALibrate:CONTinue command to dismiss dialog boxes that are displayed during a calibration. Use the :CALibrate:DARK:CHANnel:DISCard command to erase an existing dark calibration for the selected channel.

Example Command Sequence

:CALibrate:DARK:CHAN3A:STARt
*OPC?
…  //  Your code to synchronize execution timing.
:CALibrate:CONTinue
*OPC?
…  //  Your code to synchronize execution timing.
:CALibrate:CONTinue