Chapter 4 Remote Interface Reference
Calibration Commands
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CALibration:SECure:STATe {OFF | ON},<quoted code>
Unsecure or secure the power supply with a security for calibration.
CALibration:SECure:STATe?
Query the secured state for calibration of the power supply. The returned parameter
is ‘‘0’’ (OFF) or ‘‘1’’ (ON).
CALibration:STRing <quoted string>
Record calibration information about your power supply. For example, you can store
such information as the last calibration date, the next calibration due date, or the power
supply’s serial number. The calibration message may contain up to 40 characters. The
power supply should be unsecured before sending a calibration message.
CALibration:STRing?
Query the calibration message and returns a quoted string.
CALibration:VOLTage[:DATA] <numeric value>
This command can only be used after calibration is unsecured and the output state is
ON. It enters a voltage value that you obtained by reading an external meter. You
must first select the minimum calibration level (CAL:VOLT:LEV MIN) for the value
being entered. You must then select the middle and maximum calibration levels
(CAL:VOLT:LEV MID and CAL:VOLT:LEV MAX) for the value being entered.
Three successive values must be selected and entered. The power supply then
computes new voltage calibration constants. These constants are then stored in non-
volatile memory.
CALibration:VOLTage:LEVel {MINimum | MIDdle | MAXimum}
This command can only be used after calibration is unsecured and the output state is
ON. It sets the power supply to a calibration point that is entered with CAL:VOLT
command. During calibration, three points must be entered and the low-end point
(MIN) must be selected and entered first.
CALibration:VOLTage:PROTection
Calibrate the overvoltage protection circuit of the power supply. It takes about 10
seconds to execute the command. The calibration must be unsecured and the output
be opened before calibrating the overvoltage protection circuit. The power supply
automatically performs the calibration and stores the new overvoltage constant in
nonvolatile memory. Notice that voltage calibration precedes before sending this
command.
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