27
5.6
Locking/unlocking the keyboard
The keyboard of the Defensor PH27/PH27A can be locked to prevent unauthorized access to the
stored settings.
PH27
Key lock
• To lock the keyboard, press
<ESC>
key until (approx. 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. seconds)
the message “Key lock” disappears and the operating display is
shown.
PH27
Act 45%rH H3
Summary of Contents for PH27
Page 1: ...Operating instructions Adiabatic Humidifiers 2533417 EN 0807 Defensor PH27 PH27A...
Page 2: ......
Page 46: ...Notes...
