American Magnetics 185 & 186 Liquid Level Instruments (CE-Marked) - Manual (Page 51)

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Remote Interface Reference
Serial Command Set Reference
5.1.4.5 Commands for performing remote calibration
The calibration commands perform a remote calibration equivalent to
activating the front panel MIN, MAX, and “~” (approximate) calibration
buttons. The calibration is automatically saved to permanent memory. See
the Calibration section for more information regarding calibration.
Command: MINCAL Function: Performs a MIN
calibration
Returns: <CR><LF>
Command: MAXCAL Function: Performs a MAX
calibration
Returns: <CR><LF>
Command: APPROX=
<value>
Function: Performs an
approximate
calibration using
value
as the
approximate
calibration factor
Returns: <CR><LF>