Uniphos Envirotronic Pvt Ltd

Fire Detector

The IR/UV Based Fire Detector easily detects fire by detecting its three critical features such as IR emission from the hot CO2, UV radiation (185 mm to 260 mm) in the area surrounding the solar bind and continuum black body generated by IR radiation emanating from fire. Having a flameproof enclosure (with two windows), the Fire Detector can be easily mounted on a wall with the help of a stand; this stand’s view can be adjusted for bringing the viewing window in the line of sight of the spot where fire outbreaks can happen.

Working : The detector gives a "fire alarm" (red led glows) when all the three chosen fire parameters are detected. Simultaneously a relay output is available. When only one of IR or UV radiation is detected yellow led glows to give a "warn alarm" and also a relay output is available. The detector also provides an analog 4-20mA output and MODBUS RS485 digital output to indicate the above events.



  • Multi-parameter based Detector for avoiding false alarm
  • Wall mountable with adjustable cone of view
  • 4-20 mA analog output
  • Alarm, Warn and Fault indications by LEDs and relay outputs
  • MODBUS RS485 digital output



  • Automotive Industries
  • Industrial heating and drying systems
  • Industrial gas turbines
  • Flammable material storage facilities
  • Refineries
  • Drilling and production platforms
  • Fuel loading facilities
  • Compressor stations/Gas compressors
  • Electrostatic plant spray booths
  • LNG / LPG processing and storage facilities
  • Chemical plants
  • Aircraft hangars

Spectral Sensitivity :

  • UV : 185 - 260 nm
  • IR1 : 3.9 microns
  • IR2 : 4.4 microns


Relay Output :

  • Fire Alarm : SPDT - Normally De-Energized, Latching/ Non- Latching
  • Warn Alarm : SPDT - Normally De-Energized, Latching/ Non- Latching
  • Fault Alarm : SPST - Normally Energized, Latching/ Non-Latching
  • Relay Contact Rating : 1 amp @ 24 VDC
  • Analog Output : 4-20 mA


Visual indications :

  • Green LED : Power on
  • Yellow LED : Warn
  • Red LED : Fire
  • Digital Output : RS-485 MODBUS protocol


Temperature Range :

  • Operating : -10 to +50 C
  • Conduit Entries : Standard 3 no. of 1/2" NPT
  • Enclosure Materials : Copper free Aluminum alloy - Powder coated
  • Enclosure Type : Explosion Proof
  • Certifications : Ex-d IIC IP66, T6.


Field of View 90 degrees cone of vision (55 degrees from its axis)
Sensitivity 30 meters to a 1sq.ft Gasoline fire
Response Time 2-3 seconds to 1 sq. ft Gasoline fire at 100 ft.
Warm Up Time 15 seconds after power On
Operating Voltage 12/24 VDC, Regulated
Storage Temperature -20 to +80 C

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