B&K Precision 1900-1901-1902 - Manual - Manual (Page 23)

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Shorting Pin 5 to Pin 4 (ground) will turn the output off.
When output is off, the CV and CC LED will flash. The current output voltage and
current setting will show on the panel meter.
You can also adjust the output by voltage and current control knob to your desired
value when output is off.
5 Faults and Troubleshooting
5.1 OVP: Overvoltage Protection
This unit has a built-in tracking overvoltage protection feature. In the event of the
output voltage becoming greater than the set value (see specified range from “