B&K Precision 1739 - Manual - Manual (Page 26)

24
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 turn the voltage coarse knob.
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 30.605V.
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.
4. Low current calibration
a) Select “I 0” for zero current calibration and turn the voltage coarse knob.
When you initiate the zero current calibration, the CV LED lights up and the
power supply will display:
Voltage display: I 0
Current display: ConA