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เครื่องตรวจจับเปลวไฟ Flame Detector 


  Crowcon FGard IR3 Flame Detector

    The Crowcon Flame Detector FGard IR3 flame detector is an explosion proof multi spectrum IR flame detector. FGard delivers superior performance, responding to hydrocarbon liquid fuel and gas fires at long distances.
    The 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.

Multi spectrum IR

60 metre flame detection range – Will detect all Hydrocarbon fires which means no condensation forming on the window, improving reliability and performance across temperature.

Fast detection time

Responds in less than 5 seconds to 0.1m² fire at 60 metres

Heated optics

Intelligent heated optics – No condensation / ice / water

Advanced optical verification – No reflector

Automatic test verifies cleanliness of the lens and electronic circuitry. No reflector optical check and large optical surface results in far fewer false alarms.

Crowcon FGard IR3 Flame Detector Specifications

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)


100 mm Dia x 200 mm (4" Dia x 8" L)


Copper free aluminum or 316 stainless steel

Entry size

3/4 inch NPT or M25


Alu 5.5 lbs (2.5 Kg) / SS 13.2 lbs (6.0kg)


Relay contacts (DPDT 2A at 30Vdc) – alarm and fault.
4-20mA plus fault alerts, HART®


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
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


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