Front Panel Calibration
Eight shifted keys and the Entry keypad are used for calibration functions (see Chapter 5 for explanations of shifted keys and the Entry keypad). The following procedures assume you understand how to operate front panel keys.
Entering the Calibration Values
Follow the steps in Table
Saving the Calibration Constants
Storing calibration constants overwrites the existing ones in nonvolatile memory. If you are not absolutely sure you want to permanently store the new constants, omit this step. The power supply calibration will then remain unchanged.
To replace any existing calibration constants with ones you have just entered, press
. CAL SAVED then appears on the display.
Disabling the Calibration Mode
To disable the calibration mode, press 
. The display will return to meter mode with the Cal annunciator off.
Changing the Calibration Password
The factory default password is the model number of your unit, such as E4356A. You can change the calibration password only when the power supply is in the calibration mode (which requires you to enter the existing password). Proceed as follows:
1.Press 
.
2.Enter the new password from the keypad. (You can use up to six integers and an optional decimal point.) If you want 
to operate without requiring any password, change the password to 0 (zero).
3.AGAIN will appear on the display. Enter the password a second time.
4.When OK is displayed, the new password has been accepted.
Figure B-1. Calibration Test Setup
98 Calibration
