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Figure 7: LD204S Detection Mode settings
Figure 8: Removing unwanted areas using the
scissor tool
Proceed to Settings (F3) and make the necessary detection changes to fit the application. Indoor
Mode should be all that is necessary for most hangar door applications. For more information
about the other modes, please refer to PM-ENG-084 LD-204S Rev B installation manual section
6-2 Detection Configuration. The next page provides adjustments to the detection area itself.
Users can cut out unwanted areas or minimize the overall detection coverage. Offsetting the
detection area places an area of non-detection around the entire perimeter of the sensing area.
This helps avoid nuisance alarms caused by reflective surfaces.
The LD308SH offers a special mode specifically designed for ceiling and wall applications. This
mode is Indoor Ceiling/Wall protection mode. Vertical is selected automatically in this mode and
is available in horizontal installation for ceiling protection as well as vertical installation for wall
protection. In this mode, the detectable distance for a 2in object is 16.4ft, while a 1ft object is
detected at 100ft from the detector. Target size is not adjustable in this mode.
Figure 9: LD308SH in horizontal mode protecting skylights from intrusions using Indoor Ceiling/Wall
protection mode
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