Coal Pile Fire Monitor

Hot Spot Detection in Coal Piles

The storage of coal in large piles (stockyards) carries with it the risk of spontaneous combustion. Types of more volatile coal are being mined and stored more frequently, increasing the likelihood of hotspots forming, which undetected could lead to the onset of fire.  An early warning system that continuously monitors (not periodic spot measurement) the entire storage area, provides the best possible way of detecting these hotspots.The Coal Pile Fire Monitorprovides continuous, fully automated operation – the result being high resolution, high accuracy thermal images combined with digital data transmission. In the control room, the entire scanning view (displayed on monitors) is shown as a thermal picture, the clearly identified hotspots activating the simple pre-programmed alarms to ensure immediate action is taken to prevent the onset of fire.

Key Features Key Benefits
  • High resolution radiometric thermal image, giving detailed temperature information transmitted via a high speed digital connection
  • Designed for harsh industrial environments, ensuring ultimate measurement reliability and availability
  • Sealed industrial enclosure – designed for installation on plant, or in a control room
  • Optional touchscreen – gives local display and control enabling maximum flexibility
  • Wide ambient temperature capability, ensuring that the imager can be used in even the harshest environments
  • Integrated manual pan & tilt mount for simple alignment of the system after installation
  • Accurate temperature measurement, enabling optimum process control from over 76,000 individual temperature measurements
  • Simple installation and ease of use, reduces installation cost and complexity
  • Flexible interface – provides connection to a wide range of standard industrial interfaces e.g. simple cross-platform TCP/IP protocol, OPC, analogue signals or alarm outputs
  • High performance air purge design keeps lenses clean ensuring continual optimum performance in industrial environments
  • Full range of analysis & process control functions e.g. point or area temperature measurement, temperature profiles, histograms, isotherms, measurement trending and digital zoom
  • Monitor or control up to four imagers at full frame rate



The Coal Pile Fire Monitor provides continuous, fully automated operation – the result being high resolution, high accuracy thermal images combined with digital data transmission. In the control room, the entire scanning view (displayed on monitors) is shown as a thermal picture, the clearly identified hotspots activating the simple pre-programmed alarms to ensure immediate action is taken to prevent the onset of fire.

The Coal Pile Fire Monitor has been developed using our extensive experience of providing monitoring solutions to industry.
The plant operator has a complete thermal view of the entire storage area using a series of gantry-mounted high resolution thermal imagers, which are installed inside protective enclosures to ensure continuous operation.

  1. A three point measurement system to cover the entire storage area
  2. The positions of the three pan and tilt themal imagers (red areas indicate alarm locations)
  3. Hotspot clearly visible in ‘Stored Alarm Image’
  4. Date, time and location data stored plus option to cancel alarm condition.


The Coal Pile Fire Monitor uses our FTi-E technology to provide fast response data directly into the plant control room (and on-site if required). It can directly replace portable solutions which provide only a periodic check, increasing monitoring availability and freeing up plant personnel to act on the data, rather than capture the data.

What information can be provided to the plant operator

  • Continuousthermal image acquisition – for real-time process surveillance.
  • Thermal data to trigger alarm conditions – early hotspot detection
  • Comparative analysis – record the ideal thermal profi le, then continuously monitor to check on deviations in the process.
  • Temperature measurement – capability for all types of measurement including min., max. and averages.
  • Record and playback of moving objects – record thermal images of moving processes to pinpoint potential problems.
Low Temperature (C): -20 High Temperature (C): 120
Technical Details
Thermal Imager – FTI-800E
Measurement range: -20 to 120 °C/-4 to 250 °F
Spectral response: nominal 8 to 14µm
Frame rate: 7.5 frames per second
Image pixels: 320 x 240
Detector type: Uncooled amorphous silicon focal plane array
Field of view (4 x 3 format): 16° x 12° and 32° x 24°
Focusing range: 16° x 12° : 1m / 39 in to infinity
32° x 24° : 0.5 m / 19 in to infinity
System temperature measurement accuracy: ±1.5 °C / ±3 °F
System thermal resolution:
(rms value)
< 0.08 °C / 0.15 °F
Ambient temperature range: Suitable for outdoor operation in all ambient conditions
Sealing: IP 65 / NEMA 4
Vibration: 0.5mm, 10 to 60 Hz; 3g, 60 to 300 Hz
CE Certification: EN 61326: 1999 B
Industrial Housing
Dimensions: 258 x 305 x 330 mm / 10 x 12 x 13 in
Weight: 20 kg / 44 lb (with imager installed)
Pan & Tilt Unit
Pan range: 365°
Tilt range: +20° to -90° from horizontal
Ambient temperature range (operating): -40 to 60 °C / -40 to 140 °F
Dimensions: 255 x 181 x 223 mm / 10 x 7 x 9 in
Weight: 6.5 kg / 14 lb
Sealing: IP 67 / NEMA 4
Download Datasheet
Coal Pile Monitoring

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