Conventional Beam Detector / Reflective Beam Smoke Detector for Fire Alarm System

Introduction

The TX7130 reflective optical beam smoke detector incorporates a light transmitter and the detector on the same unit. The light path is created by reflecting light emitted from the transmitter off a retro- reflector, meaning it is reflecting light back to its source with a minimum of scattering, which is placed opposite the detector.

In a fire, when smoke falls within the path of the beam detector, some of the light is absorbed or scattered by the smoke particles. This creates a decrease in the received signal, leading to an increase in optical obscuration. This unit decodes or analysts received signals and compare to the pre-programmed algorithm stored on the processor. Through this algorithm the detector will decide whether fire is defined or not and lead to enablement the corresponding relays and LED indicators. The unit on the operating mode maintaining continually emitting light, care should be taken that the activities in the space do not obstruct the beam or move the device to avoid false operation of the detector

Operating Voltage 20 V to 28 V DC

Current Parameters Standby: 23mA Commission: 56mA Alarm: 33mA

Beam Sensor Sensitivity [via Encoder] Level 1: 2.6 dB High Sensitivity

   Level 2: 3.8 dB Medium Sensitivity

                                                               Level 3: 5.8 dB Low Sensitivity

Beam Pathway Length [via Encoder] Span 1: 8 to 20 meters Limited Path

Span 2: 20 to 40 meters Short Path

Span 3: 40 to 70 meters Normal Path

Span 4: 70 to 100 meters Long Path

Beam Path Angle ±0.4º Directional (This data takes the average of the left and right deflection angles.)

Alignment Guide Laser Beam Pointer

Digital Display Guide Nixie Tube

LED Indicator Guide Red: Fire ; Yellow: Fault ; Green: Alignment

Reset Time Less than 2 Second

Relay Capacity [Fire & Fault] Normally Open & Close/ 2.0 A; 30 VDC

Material / Colour ABS / White

Dimension / Weight L:190.87 x W:126.87 x H:91.96 mm / 440 gm

Weight 0.130 Kg with base

Operating Temperature -10°C to +50°C

Ingress Protection Rating IP30 [IP66 glue seal-For permanent fixing

Humidity 0 to 95% Relative Humidity, Non condensing