The model MI-LPB is an intelligent reflector- type linear optical beam smoke detector designed to operate as a component of an intelligent fire alarm system. It operates primarily on the principle of light obscuration utilising a laser beam. Optical beam smoke detectors are particularly appropriate for protecting buildings with large open spaces such as warehouses, atriums etc.   The MI-LPB detector is a combined transmitter/receiver unit, which can be directly connected to an analogue addressable loop without the need of a local power supply. Each second the laser diode within the detector generates a visible pulsed light towards a high efficiency reflector. The reflector returns the beam to the MI-LPB detector receiver where an analysis of the received signal is made. The change in the strength of the received signal is used to determine the alarm condition.

•Combined transmitter and receiver unit

• Canbe connected directlyto theanalogueaddressableloop

• Range10-100metres

• Sensitivity/thresholdadjustment

• Operates inthe visible lightspectrum

• VisualLEDindicatorstoaidalignmentofbeam

• Standby, fault and alarm LED indicators

• Integralhorizontalandverticalbeamalignment

• Driftcompensation

• Optional- Remote engineer’s switch

• Optional- Heat pad kits and filters

• Vds approved to prEN54-12 and EN60825-1

mechanical

	MI-LPB	REFL20	REFL30	REFL40	REFL50	REFL60
Height(mm)	195	205	305	400	548	600
Length (mm)	155	205	305	400	508	600
Width(mm)	150	30	30	30	30	30
Weight(Kg)	1	0.5	1.1	1.2	3.6	1.6

ColourGrey Grey Grey White Grey White

optical

6200R REFL20 REFL30/40 REFL50/60 RangeN/A 10 to 30m 30 to 50m 30 to 100m Wavelength 670nm (red)

electrical

Operating Voltage Range17 to 28Vdc (24 Vdc nominal) Maximum Standby Current 3.2mA MaximumAlarm Current 12mA (LED on)