FI750 series optical smoke & thermal detector, class A1R

Order code:	FI750/OT
Guaranty time(months):	24
Manufacturer:	LST

Description:
The detector operates both by means of an optical sensing chamber based on the principle of scattered light as well as with a rate-of-rise thermal sensor according to EN 54-5, Class A1R, and is designed for use on ADM loops with Labor Strauss/700 protocol. In the parameter settings of the control panel, one of 4 sensitivity levels can be selected, thereby adapting the detector optimally to the respective application. A thermal-only operation is also possible. The two multicoloured LED indicators with 360° visibility indicate the activated condition of the detector in red and the test condition in green. An output for the connection of a remote indicator is available. The integrated dual-isolator disconnects the loop at short circuit on the loop line. By means of the Programming Unit FI750/PU, the address of the detector can be set in the range 1 to 240. The detector is accommodated in a white housing and is designed for indoor mounting.