FD705RVDS Linear Infrared Smoke Detector

Wiring is reduced to maximum,as the emitter and receiver are on the same equipment. the FD705RVDS barrier is very easy to align by checking its LED indicators. The “Prism Targeting” and “Aligment Mode” modes ensure optimal device adjustment. Mechanical alignment is done using two adjustment wheels located on both sides of the device, which allow us to move the barrier on its two axes. Its low current consumption allows you to connect multiple units to the same power supply without compromising the autonomy of the system.

The barrier alarm thresholds are 25, 35 and 50%. These are selectable depending on the environmental conditions under which the detector is installed. If the infrared receiver of the barrier progressively reduces thesignal level below the selected threshold and this situation is maintained for 10 seconds, the barrier will activate the Alarm relay. The barrier allows operation with or without alarm interlocking. However, if the infrared signal level is rapidly reduced by more than 90% for 10 seconds, the barrier will activate the fault relay. This last situation can occur for several reasons, such as placing objects in front of the device, misalignment of the detector, transmitter failure, etc. The barrier also incorporates an automatic gain control, which allows it to absorb and correct the loss of infrared signal due to environmental dirt deposited in the receiver or prism. The FD705RVDS barrier can be easily testedand using the supplied test template.