Voltage Calibration - Agilent Technologies U8001A User's And Service Manual

5 Service Guide

Voltage Calibration

62
Before attempting to calibrate the power supply, please ensure
that you have disconnected all loads from the power supply and
connect a digital voltmeter (DVM) across the output terminals.
You will be calibrating for low voltage, middle voltage and high
voltage point respectively. Make sure that the power supply is in
constant voltage (CV) mode along the voltage calibration.
1 Enter calibration mode.
• In order to enter the calibration mode, hold down the
Memory button when power on the power supply.
• The output is enabled.
• The calibration will start with voltage calibration mode.
• Display will show "C" blinking.
• The CV annunciator will be turned on.
• Ensure that the power supply is in CV mode. Otherwise,
the CC annunciator will fast- blink.
2 Low Voltage Calibration Point.
• Display will show "C" blinking.
• The M1 annunciator will be turned on.
• Use the knob to enter the reading obtained from the DVM.
• Press the "Memory" button to save the changes and move
to the next calibration point. You will be able to perform
this if the power supply is in CV mode.
3 Middle Voltage Calibration Point.
• Display will show "C" blinking.
• The M2 annunciator will be turned on.
• Use the knob to enter the reading obtained from the DVM.
• Press the "Memory" button to save the changes and move
to the next calibration point. You will be able to perform
this if the power supply is in CV mode.
U8001A/U8002A User's and Service Guide