Release 3.0 179
Appendix A. Calibration
These are the calibration procedures for the 6000 W unit. If you purchased a
12000 W unit, please reference the accompanying addendum for the correct
calibration procedures.
Overview
The calibration of the unit is software dependent; there are no potentiometers to
adjust.
Calibration may be performed via the front panel or SCPI commands. Front panel
calibration is partially automated. The calibration points are set automatically and
you will be prompted to enter the measurement data.
There are 10 items that need to be calibrated. Output voltage and output current are
mandatory. If you intend to use the analog programming interface, you must
calibrate it as well. It needs to be calibrated in both the 0-5V and the 0-10V ranges.
In each range, voltage programming, voltage readback, current programming and
current readback need to be calibrated.
All calibration data is taken at 10% and 90% of the rated outputs.
The setting and readback accuracy of the power supply should be checked annually,
and calibration done only if the unit is not operating within its specification.
The OTP and AC off protection mechanisms are operational during calibration. All
other protection mechanisms are disabled.

Entering Calibration Mode

Calibration mode can be entered from the front panel by selecting
"CALIBRATION" from the main menu or by using the "change calibration state"
SCPI command.
Note POWER is calculated from voltage and current readback.
!
CAUTION
Calibration procedures should only be performed by qualified users. Failure to
adhere to this warning may cause damage to the power supply, or pose a safety
hazard for the user.