Keysight U8001A, Руководство пользователя и сервисное руководство

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Service Guide 5
Keysight U8001A/U8002A User’s and Service Guide 75
Voltage Calibration
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.