B&K Precision 1739 - Manual - Manual (Page 25)

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I 0 Low current calibration
I F Full current calibration
The voltage coarse and fine and current fine knobs are not used.
Important note!
In order to perform a correct calibration procedure, you must select the full voltage
calibration option just after the zero voltage calibration option, and the full current
calibration option just after the low current calibration option.
2. Zero voltage calibration
a) Turn the current coarse knob to select “U 0” for zero voltage calibration
and turn the voltage coarse knob. The power supply will display:
Voltage display: U 0
Current display: hex number
On the current display, a hexadecimal number between 0 and FFFFh is
displayed. 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 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.