Morley-IAS Intelligent Thermal Detector
The Morley-IAS range of intelligent thermal detectors
are used with the ZX series intelligent multi protocol
fire alarm control panels to measure thermal levels
caused by a fire and report the analogue level of the
thermal measurement to the control panel. The use of
analogue information provides significant benefits to
the end user, installer and serviceman in ways which are
not possible with a conventional type system. Since this
detector is also addressable, it will help to quickly locate
a fire during its early stages.The MI-FHSE and MI-HTSE are fixed temperature
analogue addressable sensors employing low
mass thermistors and microprocessor technology
for fast response and linear temperature sensing.
Their linear response allows these sensors to be
used to signal temperatures over the range of
58°C (Class A1S) to 78°C (Class BS).
The MI-RHSE uses the same thermistor and
microprocessor technology to provide an alarm
when the rate of rise in temperature exceeds
10°C/minute (typical) or if the temperature
exceeds a threshold of 58°C (Response Class A1R).
All of the thermal detectors have two integral
alarm LEDs which provide local visual indication
of the sensor status. These LED’s provide a dual
function. In the event on an alarm, they are
switched ON continuously, and can also be
programmed to either blink when polled by the
panel or remain off during normal conditions.