Locking/Unlocking The Keyboard - Defensor PH28 Operating Instructions Manual

5.6

Locking/unlocking the keyboard

The keyboard of the Defensor PH28/PH28A can be locked to prevent unauthorized access to the
stored settings.
Key lock
Set 50%rH
Act 30%rH
Set 50%rH
• To lock the keyboard, press <ESC> key until (approx. 4 seconds) the
adjacent message appears in the display. The keyboard is locked now.
Each time you press any key the adjacent message appears again.
• To unlock the keyboard, press <ESC> key until (approx. 4 seconds)
BA3
the message "Key lock" disappears and the operating display is
shown.
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