B&K Precision 9116 - Manual - Manual (Page 65)

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9. When the supply has reached 10 V, use the numeric keypad and enter 1 V. Press
and observe the output voltage slowly ramping down to 1 V over a span of 10
seconds.
3.8 Key Lock
The front panel keys can be locked to prevent unwanted changes to output settings and power
supply configurations. Follow the steps below to enable/disable key lock.
1. Press and . A * indicator will light up on the display, indicating that the
front panel keys are lock. At this point, all keys are disabled except for and
(Lock function only).
2. To unlock the keys again, press and again. The * indicator will disappear
and all keys will be enabled.