Flame and Gas Detection Brochure

lCS Explosion Proof Heat Detector Data Sheet

Wherever toxic or combustible gases are part of an industrial process, they pose a threat to people, property, and productivity. inControl Systems provides a complete line of reliable flame and gas detection solutions including various types of addressable and conventional controllers to serve as your first line of defense against gas and flame threats.

Our industrial line incorporates the full spectrum of sensing technologies such as electrochemical, catalytic bead, open-path, and point Infrared for gas detectors and ultra-violent, infrared, and triple-infrared for flame detectors. We design, build, test, and commission complete flame and gas safety systems that range from conventional panels to fault-tolerant, addressable systems. Our flame and gas detectors are globally certified to the latest product approval standards.

Whether your need is to monitor gas hazards in a large area or several discrete locations from a convenient central site, inControl Systems has a solution.

“Our flame and gas detectors are globally certified to the latest product approval standards ”


• Oil & Gas • Petrochemicals & Refineries • Chemical & Refrigeration Industries • Power Plants • Water & Waste water Treatment • Parking & Utility Rooms • Commercial Sector

lCS Explosion Proof Heat Detector

A cast aluminum housing encloses a standard heat detector making it suitable for use in hazardous locations including those requiring detectors that are explosion proof, water (and dust) tight. The suffix XWT denotes a unit that is suitable for areas described as:
•     Class I, Groups C and D.
•     Class II, Groups E, F and G.
•     Class III
•     Applications requiring special purpose enclosures types, III,IV and V, weatherproof, water-tight and dust-tight.


flame and gas enclosure.png

The XWT enclosure has two openings tapped for ½ in. rigid conduit. The unit is fastened to the ceiling surface by means of two mounting holes that are 3/16 in. (5 mm) in diameter. Pigtail leads are provided for connection to the fire alarm initiating circuit and/or any ancillary device. After connections are made, the unit is re-assembled using six machine-thread bolts provided. The black wires are connected internally to one side of the contacts and the white wires are connected to the other side in the same way.

Detector Operation

The ICS Explosion Proof Heat Detector is a combination fixed temperature and rate-of-rise or sole fixed temperature detector in a solid aluminum housing suitable for use in various hazardous locations. A set of open contacts will close when the ceiling temperature increases at a minimum rate of 8.4° C (15° F) per minute. Closing the contact initiates the fire alarm sequence. Independent of the rate-of-rise, the fixed temperature portion consists of a spring-loaded plunger secured by a fusible alloy. When released, the plunger strikes the set of contacts and holds them closed. Spacing between detectors on an uninterrupted ceiling is 50ft. (15.2 m) for the rate-of-rise; 30ft. (9.1 m) for fixed temperature portion. Distance from any wall or partition is 25ft. (7.5 m) and 15 ft. (4.5 m) respectively.

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