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Heat Detector
Product Features
•  SMT processing of high stability.
•  Collect, store, analyze and determine data by built-in MCU.
•  Resists effect from electric magnetic interference, dust, environment temperature variation, erosion, and outside light.
•  Heat and humid-resistive and water-proof processing apply to different weathers.
•  Damp heat resistance and water-proof processing.
•  A2R type: fix temperature alarm and rate-of-rise alarm.
•  Glass sealed temperature-sensitive resistance gives quick alarm.
•  Suitable for petroleum, chemical related and other hazard places with explosion-proof requirements (ZoneI, Zone II).
•  Two-wire polarity-free loop.
•  Communication distance: 1500m. 

Technical data

ContentTechnical parameters
Working voltageDC18V-27V powered by control panel, modulation type.
WiringTwo-wire, polarity-free
Working temperature-10~+50℃
Storage temperature-20~+55℃
Relative humidity≤95%
Monitoring current≤0.3mA(24V)
Alarm current≤1mA(24V)
IndicatorDim light when in normal monitoring state, steady on when alarms.
Dimensions115mm×155mm×97 mm
Addressing methodElectric encoder
Addressing range1-200
Protection area20-30m2
Communication distance1500m
Explosion proof markEx d ib IIB T6
Protection gradeIP66
Applied standardGB 4716-2005 Point type heat fire detectors
GB 3836.1-2010"Explosive atmospheres - Part 1: Equipment-General requirements"
GB 3836.2-2010"Explosive atmospheres - Part 2: Equipment protection by flameproof enclosures 'd'"
GB 3836.4 "Electrical apparatus for explosive gas atmospheres Part 4: General requirements"
Structure and Installation
•  Installation shall be carried out in accordance with the relevant provisions of GB 3836.15-2000 "Electrical Equipment for Explosive Gas Environment Part 15: Electrical Installation in Dangerous Places (except coal mine)".
•  Installation needs to meet the relevant acceptance technical specifications of GB 50257-1996 "Code for construction and acceptance of electric equipment on fire and explosion hazard electrical equipment installation engineering".
•  Installation needs to connect with explosion-proof components (cable introduction device, explosion-proof flexible hose, explosion-proof junction box, blocking parts, etc.).
•  Use a dedicated electric encoder to write an address (1-200).
•  Terminals L1, L2 respectively connect to signal lines L1, L2, polarity-free; the signal lines use ZR-RVS-2 x 1.5mm2 twisted pair.
•  Mount the detector onto the base and turn it clockwise to secure.
•  Static hazard, cleaning must be wiped with a wringing-off wet cloth.
•  Do not replace any components or structures that will affect explosion-proof performance.
•  Conduct heat alarm test regularly, ideally once every six months.