B&K Precision 1739 - Manual - Manual (Page 27)

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b) Connect a digital ammeter (B&K Precision 5491B or similar instrument) to
the output terminals of the power supply to initiate the zero current
calibration procedure. If a digital ammeter is not connected within 30
seconds, the power supply will abandon the current calibration procedure
and return to the Calibration menu.
The CV LED indicator will go off and the CC LED indicator will light on. The
power supply will then display:
Voltage display: I 0
Current display: hex number
A hexadecimal number between 0 and FFFFh is shown on the current
display.
c) Use the current coarse and fine knobs to adjust the value displayed by the
power supply until the ammeter indicates the closest value to 0mA.
d) Press the Output On-Off button to finish the calibration.
While performing the zero current calibration, the current display will show
Adc. After the zero current calibration, the message DonE is shown on the
current display for 1 sec. Then the power supply returns to the Calibration
menu.
5. Full current calibration
To finish the current calibration procedure, you must select the full current
calibration option after the zero current calibration.
a) Select “I F” for full current calibration and turn the voltage coarse knob.
When you initiate the full current calibration, the CV LED lights up and the
power supply will display:
Voltage display: I F
Current display: ConA