The system comprises of a single unit incorporating an infra-red transmitter and receiver. The signal generated in the transmitter element and reflected by the prism back to the receiver element is analyzed for the presence of smoke. The internal microprocessor determines an alarm condition when a predetermined level is reached.

Operating Range: 5 - 120 m
Operating Voltage Range: 12 to 36 VDC ±10%
Operating Transmitter Current: 8 mA (per Transmitter)
Power Down Reset Time: >20 seconds
Fire and Fault Relay Contacts: Resistive VFCO 2A @ 30 VDC
Operating Temp. (non-condensing): -20°C to +55°C
Optical Wavelength: 850 nm
Relative Humidity (non-condensing): 93%
Dimension: (W x H x L) & Weight
Control Unit: 203 mm x 124 mm x 71 mm, 600 g
Transmitter & Receiver: 78 mm x 77 mm x 161 mm, 200 g

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