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Talentum UV/IR2 Flame Detector (16521) Aluminum Flameproof EXD

Model #: 16521


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Talentum UV/IR2 Flame Detector (16521) Copper-Free Aluminum Housing, Flameproof EXD

The Talentum® Ultra-Violet, dual Infra-Red (UV/IR²) Flame Detector is designed to protect hazardous areas where open fires may be expected and detects almost all flames, including hydrocarbon fires with 4.3μm emissions through to invisible fires such as hydrogen. The UV/IR2 Flame Detector is sensitive to flickering, low frequency (1-15Hz) infra-red radiation emitted by flames during combustion. This detector has a UV sensor and two IR sensors which respond to different wavelengths of both the ultra-violet and the infra-red spectrum. The signals from these sensors are processed by the detector and checked for characteristics of a flame. The simultaneous detection of both the UV and the IR light by the sensors will signal an alarm. False alarms from flickering sunlight, arc welding and lightning are eliminated by a combination of UV and dual IR signal processing techniques. The Talentum® UV/IR2 detector has selectable output options of relay contacts or 4-20mA signal, as standard.


  • Highest immunity to false sources
  • Solar blind
  • Tolerant of fumes, vapours, dust and mist
  • Suitable for indoor and outdoor areas
  • Unaffected by convection currents, draughts or wind
  • Proven response to multiple fuel types
  • Multi-spectrum detection
  • Selectable output options
  • Selectable response speed
  • Selectable sensitivity levels
  • Built in auto and manual test
  • Low current consumption
  • Fast response to fire
Mechanical Specifications  
Housing Material Copper Free Aluminum Alloy
Housing Color Red
Dimensions 150(H) x 146(W) x 137(D) mm
Weight 2.5kg
Cable Gland Entries 3 x 20mm
Wiring 1.0 to 4.0mm²
Electrical Specifications  
Supply Voltage 14 to 30Vdc
Quiescent Current 8mA, RL2 energized
4mA, current loop, RL2 off 3mA, RL2 off
Alarm Current 28mA, RL1 & RL2 energized
20mA, current loop, RL1 & 2 off 9mA, RL1 energized
Power Up Time 2 seconds max.
Test Signal Voltage 14 to 30Vdc
Relay Outputs Normally Open or Normally Closed
- Programmable Latching or Non-latching
- Ratings: Current 1.0A Max.
Voltage 50Vdc Max.
Power 30W Max.
(Note: Resistive Loads Only)
Environmental Specifications  
Operating Temperature -10°C to +55°C
Storage Temperature -20°C to +65°C
Relative Humidity 95% Non condensing
IP Rating IP66
- Class 1* 0.1m² n-heptane at 25m
0.1m² n-heptane at 12m
(see EN54:10 for sensitivity settings)
Field of View 90° min. Cone
Spectral Response
- UV
- IR
185 to 260nm
0.75 to 2.7µm

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