B&K Precision 1747 - Manual - Manual (Page 26)

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c) Use the current coarse and fine knobs to adjust the value displayed by the
power supply until the voltmeter indicates the closest value to 0V.
d) Press the Output On-Off button to finish the calibration.
While performing the zero voltage calibration, the current display will show
Adc. After the zero voltage calibration, the message Done is shown on the
current display for 1 sec. Then the power supply returns to the Calibration
menu.
3. Full voltage calibration
To finish the voltage calibration procedure, the full voltage calibration must be done
after the zero voltage calibration.
a) Select “U F” for full voltage calibration and press the Output On-Off button.
The power supply will display:
Voltage display: U F
Current display: hex number
A hexadecimal number between 0 and FFFFh will be shown on the current
display. During the zero voltage calibration, the CV LED is lit.
b) Connect a digital voltmeter to the output terminals of the power supply
(B&K Precision 5491B or similar instrument).
c) Use the current coarse and fine knobs to adjust the value displayed by the
power supply until the voltmeter indicates the value to 60.948V.
d) Press the Output On-Off button to finish the calibration.
While performing the full voltage calibration the current display will show
Adc. After the full voltage calibration the message Done is shown on the
current display for 1 sec. Then the power supply returns to the Calibration
menu.