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Product Features
  • 60 metre flame detection range
  • Responds in less than 5 seconds to 0.1m² fire at 60 metres
  • Intelligent heated optics – No condensation / ice / water
  • Automatic test verifies cleanliness of the lens and electronic circuitry
Delivery options

At Cadmus Products we aim to deliver orders efficiently and at highly competitive rates. 

  • We can ship consignments of all shapes and sizes and hazardous content across the UK and worldwide. Most of our orders are sent via DHL, however sometimes we may use other couriers.
  • If you are purchasing a laboratory product online you can find out the price of shipping checkout. If you are obtaining a quote for a product, then we will email you
    with our best shipping prices along with your quote.
  • Please see our delivery page for full information
The Crowcon FGard IR3 flame detector is an explosion proof, multi spectrum IR flame detector. The Crowcon FGard delivers superior performance, responding to hydrocarbon liquid fuel and gas fires at long distances.

The Crowcon FGard IR3 delivers first-in-class flame detection with intelligent heated optics for clearer results and advanced optical verification to greatly reduce false alarms.

The FGard IR3 delivers superior performance in the detection of hydrocarbon fires. The FGard IR3 utilises the latest IR flame detection algorithms to ensure maximum false alarm immunity. The FGard IR3 has been independently tested to demonstrate it can detect a hydrocarbon fuel pan fire at nearly 200 feet in less than 5 seconds.
Operating temp -60°C to +85°C (-76°F to +185°F)
Storage temp -76°F to +185°F (-60°C to +85°C)
Humidity 0-100 % RH (Non-condensing)
Operating voltage 24 Vdc Nominal – (Range 18 to 32 Vdc)
Power consumption 3W minimum (without heater), 15 W at 32 Vdc with heater on maximum.
Speed of response < 5 seconds (Typical)
Dimensions 100 mm Dia x 200 mm (4” Dia x 8” L)
Material Copper free aluminum or 316 stainless steel
Entry size 3/4 inch NPT or M25
Weight Alu 5.5 lbs (2.5 Kg) / SS 13.2 lbs (6.0kg)
Outputs Relay contacts (DPDT 2A at 30Vdc) – alarm and fault.
0-20mA plus fault alerts, HART®
Certifications Class 1 Div 1 Groups B, C, D T4 Ambient –50°C to +85°C
Class 1 Zone 1 AEx/Ex db IIC T4 Ambient –50°C to +85°C
ATEX II 2 G Ex db IIC T4
IECEx Ex db IIC T4 Ambient –60°C to +85°C
INMETRO Ex db IIC T4
PESO Ex db IIC T4 Ta= -60°C to +85°C
CCC (China Fire Approvals) – Pending
GB-Ex of China – Pending
Performance approvals FM 3260
EN 54-10
Ingress – IP66 /NEMA 4X
SIL2 – IEC 61508
Stainless Steel IR3 flame detector
Product Code Description
FD-IR3-SS-M25 Crowcon IR3 flame detector - Stainless steel M25
FD-IR3-SS-NPT Crowcon IR3 flame detector - Stainless steel 3/4" NPT
   
Aluminium IR3 flame detector 
Product Code Description
FD-IR3-A-M25 Crowcon IR3 flame detector - Aluminium M25
FD-IR3-A-NPT Crowcon IR3 flame detector - Aluminium 3/4" NPT
   
Flame detector accessories 
Product Code Description
FD-AC-01 Vertical to Horizontal Mounting Adaptor - IR3 Flame Detector
FD-AC-02 Standard Bracket 316 Stainless Steel - IR3 Flame Detector
FD-AC-03 Marine Bracket 316 Stainless Steel - IR3 Flame Detector
FD-AC-04 Detector Sealing Kit - Metric (Gland Seals and O-Ring Set) - IR3 Flame Detector
FD-AC-05 FDS Series Sunshield - IR3 Flame Detector
FD-AC-06 Crowcon flame detector - Flame simulator 
FD-AC-09 2" pole mount kit
FD-AC-10 3" pole mount kit
FD-AC-11 4" pole mount kit
FD-AC-12 Flame Simulator Spare Charger
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