If environmental conditions rule out the use of smoke detectors, then a heat detector of the type MD601Ex/MD611Ex may provide an acceptable, though less sensitive, alternative. For general use, and particularly where the ambient temperature may be low, a 'Rate-ofRise' heat sensor is to be preferred. This type of sensor reacts to abnormally high rates of change of temperature and provides the fastest response over a wide range of ambient temperatures. A fixed temperature limit is also incorporated in these detectors. In many environments, e.g. kitchens and boiler rooms, sudden, large changes in temperature are considered 'normal'. Rate-of-rise
detectors are generally not suitable in these cases and fixed temperature [static] types should be used. Pass Number 516.052.051
About Vigilant Fire Alarm
There is a Vigilant Fire Panel for virtually every application.
Simple to use, cost-effective, and a range of advanced features usually found on more complex systems.
Vigilant Fire Panels can support analogue addressable detectors, such as the 814PH (Smoke & Heat) and 814CH (CO & Heat) fire detectors.
Each of these detectors incorporates multiple sensors which may operate independently, or used in heat enhancement mode for faster response to a flaming fire, allowing optimum detection with the best nuisance alarm suppression.
Key Features:
Detector pre-alarm sensing for early warning of a potential alarm
Compensation for soiling and changes in ambient conditions
Logging “detector dirty alert” when compensation limits are about to be exceeded, to highlight the need for maintenance to be carried out
Heat sensor able to be programmed to act independently as a heat detector
Vigilant History
Originally founded in 1914 as the Vigilant AutomaticFire Alarm Company, Ltd., Vigilant patented the Vigilant Thermostat Fire Detector and continued to develop market-leading innovations that earned it an impressive reputation for saving lives.
A respected regional brand of Johnson Controls, they are a leader in the Australian and New Zealand fire detection markets with AS and NZS product approvals.
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