Specifications

Conventional Infrared Beam Smoke Detector consists of 2 units 
 

Features:

• Application: large premises including ones with original configuration of ceilings (churches,theatres, museums)
• Intellectual microprocessor data processing provides better and earlier detection of different types of fires, including “black smoke” and eliminates false alarms
• 2 units: receiver and transmitter in the same housings placed on the opposite sides of the protected area
• Indication: two red LEDs on both units indicating standby mode and faults
• Attaching: angle and arc brackets (also used to mechanically adjust the detector)
• Metal cases: provide additional false alarm immunity
• RANGE and CALIBRATION switches on the rear side of the receiver
• 2 attenuators used to adjust and check sensitivity
• Wiring: 2-wire, 4-wire through the MUSH-DL module

1 PURPOSE
1.1 The detector is designed to detect smoky fires inside large premises.
1.2 Detector consists of 2 units: transmitter (Tx) and receiver (Rx). Tx and Rx are connected to each other and to alarm loop through external interface units (EIU-1).
1.3 The detector transmits the Fire and the Fault messages. The detector transmits the Fire message when infrared radiation flux between Tx and Rx is slackened by smoke in specified number of times, and the Fault message when the infrared radiation flux is completely obscured or electrical connection between units is broken. These messages are indicated with red LED indicators on the receiver.
1.4 The Fire outcoming signal retains after combustion aerosol products affecting is over. You can reset the detector to standby mode switching off the mains supply for at least 5 s.
1.5 The detector is designed for continuous-running operation with 24V DC FACP.

2 TECHNICAL SPECIFICATIONS
2.1 Detection range: 10 ÷ 100 m
2.2 D.C. voltage range: 10 ÷ 30 V
2.3 Tx current consumption in standby mode: 1 mA
2.4 Rx current consumption in standby mode: 1 mA
2.5 Rx current consumption in fire mode: 8+1,6 mA
2.6 Rx current consumption in fault mode: 25+5 mA
2.7 Rx voltage drop in fire or fault mode: 8 V
2.8 Tx voltage drop in standby mode: 8 V
2.9 Start-up time: 10 s
2.10 Dimensions of the detector’s units (w/o brackets): 67100 mm
2.11 Weight: 0,6 kg
2.12 Permissible angles of mechanical adjustment in horizontal plane: ±90 °
         Permissible angles of mechanical adjustment in vertical plane: ±45°
2.13 Operating temperature range: from – 10 to 55 °
         Relative humidity 95%
2.14 Operating temperature range: from -30° and lower (without moisture condensation)
2.15 Average lifetime: 10 years