Calibration Commands - Agilent Technologies E3633A User Manual

Chapter 4 Remote Interface Reference

Calibration Commands

Calibration Commands

See chapter 3 ''Calibration Overview'', starting on page 56 for an overview of the
calibration features of the power supply. For more detailed discussion of the
calibration procedures, see the Service Guide.
N o t e
When you calibrate the power supply, you should not set the OVP and OCP to ON
state in order to prevent OVP or OCP from tripping.
CALibration:COUNt?
This command queries the power supply to determine the number of times it has been
calibrated. Your power supply was calibrated before it left the factory. When you
receive your power supply, read the count to determine its initial value. Since the
value increments by one for each calibration point, a complete calibration will increase
the value by 5 counts.
CALibration:CURRent[:DATA] <numeric value>
This command can only be used after calibration is unsecured and the output state is
ON. It enters a current value that you obtained by reading an external meter. You must
first select the minimum calibration level (CAL:CURR:LEV MIN) for the value being
entered. You must then select the middle and maximum calibration levels
(CAL:CURR:LEV MID and CAL:CURR:LEV MAX ) for the value being entered.
Three successive values must be selected and entered. The power supply then
computes new calibration constants. These constants are then stored in non-volatile
memory.
CALibration:CURRent: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:CURR
command. During calibration, three points must be entered and the low-end point
(MIN) must be selected and entered first.
CALibration:CURRent:PROTection
This command calibrates the overcurrent protection circuit of the power supply. It
takes about 10 seconds to execute the command. The calibration must be unsecured
and the output shorted before calibrating the overcurrent protection. The power supply
automatically performs the calibration and stores the new overcurrent constant in
nonvolatile memory. Notice that current calibration precedes before sending this
command.
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