Fig. 3
5. Installation and Cabling
1) Ambient Conditions
The detector monitors and gives alarms by attenuation changes.
So, constant or causal obscuration should not appear in the optical
beam path.
The wall should be solid and flat to mount a detector or a reflector.
The detector is mounted vertically to the wall. Even if the wall looks like
flat, it may be uneven or become corrugated due to weather changes.
Therefore, the installer should ensure that those factors can’t have an
impact on the wall for detectors. In addition, the metal rack is used for
mounting detectors should be fixed without any vibration.
Not Fit for Locations Where，
➢ The ceiling is higher than 40m.
➢ It is not roofed.
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