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The Air Heater Unit is designed to raise the temperature of air drawn from a very cold environment by passing it across a heating element just as it leaves the protected area. In this manner the problem of condensation on sampling pipework external to the protected area is minimised. Warming the air sample will also ensure the components of the Stratos detector operate within the specified temperature tolerances and reduces the possibility of surface condensation.
Monitoring Option
To monitor the operation of the air heater element, a precision air thermostat kit is available. This monitors the temperature of the sampled air as it leaves the aspirating fan assembly. If the heater element fails, the changeover contacts of this thermostat can be connected to signal a Common Fault. When the Stratos detector is connected to an analogue addressable fire alarm system, a monitoring interface can be used to give a specific fault warning.
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