Unit installation

15
Enabling the Lock Function
(6) While pressing
the
FILTER
( ) button
, press the
ON/OFF
button for 2 seconds to enable the operation lock func-
tion.
appears on the screen (at ).
* If a locked button is pressed while the operation lock function is in use,
will blink on the screen (at ).
How to Unlock the Buttons
(7) While pressing
the
FILTER
( ) button
, press the
ON/OFF
button for 2 seconds.
disappears from the screen (at ).
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Display example when the operation lock function is not in use

Display example when operation lock function is in use