DET-TRONICS FRANCE

Risk Area Heat Detector with Explosion-Proof Junction Box - HD

Risk Area Heat Detector with Explosion-Proof Junction Box - HD - DET-TRONICS FRANCE

Risk Area Heat Detector with Explosion-Proof Junction Box - HD - Smoke detectors

Risk Area Heat Detector with Explosion-Proof Junction Box - HD - produit présenté par DET-TRONICS FRANCE

Risk Area Heat Detector with Explosion-Proof Junction Box - HD

Smoke detectors

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Presentation

The Model HD Risk Area Heat Detector accurately senses the surrounding air temperature and actuates an electrical contact output at a pre-determined temperature. The expansion coefficients of the metal alloys used in the construction of the detector enable the hermetically sealed contact to activate at a precise point.
The Model HD Detector can be used as an alarm device to sense excessive heat or fire and warn personnel, or it can be used as a signaling device to sense fire and send a signal to an alarm panel for actuation
of a fire suppression system.

The design of the heat detector utilizes Rate Compensation, which provides enhanced performance when compared to fixed-temperature or rate-of-rise detectors. Rate-of-rise devices rely on a rapid rate of increase in the ambient temperature to actuate an output and are subject to false alarms caused by warm thermal currents resulting from various industrial processes. Fixed temperature detectors must be completely heated to the alarm setpoint in order to activate and can require a longer than desired response time in the event of a rapidly growing fire. The Model HD Detector senses the surrounding air temperature and actuates its output when the temperature reaches the pre‑determined level, regardless of the fire growth rate. The unique properties of the alloy outer shell allow the Model HD to respond more quickly as the fire growth rate increases;
i.e. the faster the fire grows, the sooner the unit will react.

The heat detector and integral explosion-proof junction box have been properly evaluated and certified for high temperature exposure conditions. The detector’s electrical contact is factory wired to a screw terminal block located within the junction box. All external wiring to the device is also connected to this screw terminal block. The junction box material type is available in aluminum or stainless steel, with two or four conduit entries, and either 3/4 inch NPT or 25 mm threads.

The Model HD is ideally suited for use in hazardous (classified) locations.