Apollo Discovery Heat Detector

The Discovery Heat Detector features a low air flow resistance case and a single thermistor to sense the air temperature around the detector.

Reliable fire detection in areas with a very wide temperature range from -40°C to +70°C
Five operating modes suitable for a range of application temperatures
Ideal for environments that are dirty or smoky under normal circumstances
Drift compensation to ensure constant sensitivity
Remote test feature

Warranty	10 year
Applications	Car parks/loading bays Dusty environments Hospitals Hotels Medium to large buildings Offices University campuses Warehouses
Fire Type	Fast burning, flaming fires
Colour	White
Sensor configuration	Exposed heat sensing thermistor.
Weight	105g
Materials housing	Polycarbonate
Materials terminals	Nickel plated stainless steel
Product length	42mm
Product diameter	100mm
Detection principle	Temperature sensitive resistance.
Product length	1.65in
Product diameter	3.94in
Standards	EN 54-5
Approvals	SBSC BOSEC FG VdS LPCB CPR MED
Protocol voltage (min)	5V
Protocol voltage (max)	9V
Protocol voltage	5 to 9V peak to peak
Power-up surge current	1mA
Maximum power-up time	10 seconds
Status indicator - Alarm	Red
Quiescent current	350μA
Quiescent current tested at	24V dc
Terminal functions L2	+L2 Loop in & out positive, double terminal
Terminal functions L1 in	+L1 in Loop in & out, double terminal
Terminal functions +R	+R Remote indicator positive connection
Terminal functions -R	-R Remote indicator negative connection
Polarity	L1 & L2 are polarity insensitive
Humidity (min)	0% RH
Humidity (max)	95% RH
Humidity Note	no condensation or icing
Humidity	0% to 95% (no condensation or icing)
IP rating Value	IP44
Storage temperature (min)	-40°C
Storage temperature (max)	80°C
Storage temperature	-40 to 80°C