Agilent Technologies E3634A, E3633A manual Calibration Commands

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Chapter 4 Remote Interface Reference

Calibration Commands

Calibration Commands

See chapter 3 ‘‘Calibration Overview’’, starting on page 68 for an overview of the calibration features of the power supply. For more detailed discussion of the calibration procedures, see the Service Guide.

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-volatilememory.

CALibration:CURRent:LEVel {MINimum MIDdleMAXimum}

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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