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The ESL 104 Series spot heat detectors offer rate-of-rise/fixed temperature and fixed temperature only features for high performance and reliability. The rate-of-rise feature detects intense fires by quickly responding to rapid temperature increases. The fixed temperature feature reacts to fires when a specific temperature is reached. These high quality heat detectors feature the ultimate in design and decor.
The ESL 104 Series spot heat detectors offer rate-of-rise/fixed temperature and fixed temperature only features for high performance and reliability. The rate-of-rise feature detects intense fires by quickly responding to rapid temperature increases. The fixed temperature feature reacts to fires when a specific temperature is reached. These high quality heat detectors feature the ultimate in design and decor. The low silhouette and white finish blend with most ceiling designs to make the detector unobtrusive. Materials for the 104 Series heat detector are carefully selected for strength, corrosion, resistance and integrity at points of hermetic sealing. The detectors require normal periodic testing and no field maintenance. Rate-of-rise operation may be tested by applying heat from a convenient heat source such as a portable heat dryer. FOR RATE-OF RISE: Air expands when heated and contracts when cooled. The ESL 104 Series of heat detectors consist of an air chamber, a flexible metal diaphragm and a carefully calibrated, moisture-proof, trouble-free vent. For normal day today temperature fluctuations, the breathing action of the vent compensates for any expansions or contraction of air in the detector chamber.
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