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FIRE ALARM EQUIPMENT |
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Alarm Installation Wireless_Devices Metric Imperial
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False Alarms Fees
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Heat Detectors
Heat detectors offer protection in areas such as kitchens, saunas and garages laundry room or attic where the environment is dirty or smoky under normal conditions or where there is a high presence of airborne particles such as water vapour or exhaust fumes.Heat detectors are commonly marked "Not a life safety device". Heat detectors are not meant to replace smoke detectors in life safety applications like in bedrooms. Heat detectors are divided into two groups; rate-of-rise and fixed temperature Rate-of-rise heat detectors Rate-of-rise (ROR) heat detectors react to the sudden change or rise in ambient temperature from a normal baseline condition. Any sudden temperature increase that matches the predetermined alarm criteria will cause an alarm. This type of heat detector can react to a lower threshold condition than would be possible if the threshold were fixed. A typical alarm may sound when the rate of temperature rise exceeds 12° to 15°F (6.7° to 8.3°C) per minute. Fixed temperature heat detectors This type of detector reacts when the ambient temperature reaches a fixed point. The most common fixed temperature point is 58°C or 136.4°F.
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