Discovery Heat Detector

58000-400APO

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

Technical specification

General	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
Mechanical	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
Conformance	Standards EN 54-5 Approvals SBSC BOSEC FG VdS LPCB CPR MED
Electrical	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
Environmental	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