5000 Series Infrared Transit (conveyor) Heat Sensors

Combustible materials such as coal being transported on conveyor systems have the potential to self-ignite.


5000 Series Infrared Transit (Conveyor) Heat Sensors

Early warning protection along a conveyor susceptible to conditions of excessive heat can avoid catastrophic fire damage and substantial consequential losses.

The 5000 Series includes a range of early warning infrared heat sensors designed to monitor and detect, in the presence of ambient light, ‘hot spots' and embers from materials such as coal, biomass or recycled waste being transported on conveyor systems. A Patol 5000 series single point infrared heat sensor with a 90˚ field of view will monitor the full width of the conveyor and will detect and trigger at ‘hot spot’ temperatures as low as 100˚C at conveyor speeds travelling between 0.5 and 6 metres / second.

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infrared heat sensor

Technical information

The unique solar blind sensor with infrared reflective cone optical focus has been created to detect moving black heat with a spectral response between 5 to 14 µm (wide band). Black body emissions occur for all materials and the sensor is designed to detect and respond to a small change in radiant emissions even at relatively low temperatures. All sensors include adjustable sensitivity between 10 to 40 µW.

The infrared heat sensors are typically mounted at 1 to 1.5 metres above the conveyors and aligned such that the monitored potential hazard passes through the sensors field of view. The sensors provide outputs for Alarm / Trip and Fault monitoring.

The range of 5000 series sensors include continuous air purging to maintain an automatic cleaning system that ensures the prevention of dust settling on the sensor lens. Several models are available including specialist sensors with ATEX certification for hazardous dust environments and glass free Stainless Steel sensors suitable for food processing areas.

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