hager LCP01U, Manual, Page: 56 / 61

231
11. Questions - Answers
Plasterboard
and wood
10%
to 30%
reduction
Trees
or bushes
10%
to 30%
reduction
Brick
30%
to 50%
reduction
Concrete
and breeze-
block
50%
to 70%
reduction
Metal
and metal
cladding
70%
to 90%
reduction
Questions
Why can conversation be
“broken” when using the
handset? This can happen when you are at the radio reception limit.
The controller cuts off communication when you go beyond
this limit. You should move closer to the controller.
What causes the interference
(Larsen effect, crackling, etc.)
that can be heard in the
handset? This can happen when the handset is too close to another
handset or the controller.
Move the various devices over 3 metres away from each
other.
Answers
Why does the reception quality
vary when I move around with
the handset?
If there is no electromagnetic interference or no obstacle
between the handset and the controller, the “free field” radio
range is roughly 400 m. When the handset is inside the home,
the radio range is less.
Radio wave propagation
is limited depending
on the type and thickness
of the walls or partitions
through which
they pass.
What should I do if I lose the
display on my handset?
What should I do if the handset
does not beep and display
when I put it back on its base?
Check the mains power supply.
Can I clean my doorphone?
Use soapy water and a soft cloth to clean products
whenever necessary.
Do not use alcohol or acetone to clean them.
What should I do if the handset
does not ring during a
communication test?
• Check the radio range (see Testing the radio range)
and move closer to the controller if necessary.
• Check that the handset is not in silent mode
( icon displayed).
How should I go about changing
controller connections when it
has already been operating for
several weeks (e.g. to connect a
latch?)
Simply connect the latch or automatic control system without
disconnecting the power to the controller.
When connecting a latch or position contact, the existing
radio links must be recreated (see Appendices/Creating a
radio link between a handset and several controllers or several
outdoor caller unit call buttons).
Simply recharge the handset on its base.
The time must be reprogrammed
(HANDSET/SETTINGS/TIME menu)