Technical data

84 U8001A/U8002A User’s and Service Guide
5Service Guide
Current Calibration
For current calibration, connect an appropriate shunt 0.01 Ω
across the output terminals, and connect a digital voltmeter
(DVM) across the shunt resistor. Same as voltage calibration,
you will also be calibrating for low current, middle current
and high current calibration point respectively. Make sure
that the power supply is in constant current (CC) mode
along the current calibration.
1 Current Calibration mode
• Display will show "C" blinking.
• The CC annunciator will be turned on.
• Ensure that the power supply is in CC mode. Otherwise
the CV annunciator will fast- blink.
2 Low current calibration point.
• Display will show "C" blinking.
• The M1 annunciator will be turned on.
• Use the knob to enter the computed value (DVM
reading divided by shunt resistance).
• 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 CC mode.