DC-9105E Conventional Reflective Beam Detector
Installation and Operation Manual
6
➢ The ceiling is lower than 1.5m.
➢ There is much dust, powder or vapor.
➢ It generates a lot of dust in some certain conditions even
though it is clean in normal state.
➢ The places are very hot. Note: The air temperature in the
transparent ceiling will exceed 55℃ while the sun is
shining.
➢ Places are not maintained.
➢ The wall or bracket for mounting the detector is not stable due
to nearby mechanical vibration.
➢ There are fixed or moving objects obscured within 1m of the
optical beam path.
➢ The strong magnetic field exists.
2) Mounting Height and Position
The height for mounting a detector and reflector/s should be
depended on whether smoke enters the optical beam path directly and
quickly. Here are some references below.
a) As the space height is not over 5m, the detector and reflector/s
should be mounted on the walls which are opposite, having about
0.5m from the ceiling. Refer to Fig. 4.
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