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Intrinsically Safe Fixed Gas Detectors FGD3

Updated:2025-03-13

Brand: PST/Status Scientific
Model: FGD3
Description: Our intrinsically safe fixed gas detector is intended for use in a potentially explosive atmosphere where, due to the nature of the environment or the industrial process taking place, there is the ris
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Product Details

Intrinsically Safe Fixed Gas Detectors FGD3 Description：

Datasheet

Fitted with Infrared, Catalytic or EC Sensor for Flammable or Toxic Gases

Features

Intrinsically safe when used in conjunction with a safety barrier

Plug-in replaceable sensors

Digital display of gas reading

Optional weatherguard

Single operator calibration

Industry standard 4 to 20 mA output

Our intrinsically safe fixed gas detector is intended for use in a potentially explosive atmosphere where, due to the nature of the environment or the industrial process taking place, there is the risk of an incendive spark from electrical apparatus causing an explosion.

These gas detectors are designed so that the energy produced in the event of an electrical fault is insufficient to cause an incendive spark.

Specifications

Material	Plastic (ABS and Polycarbonate blending) Marine Version – Cast Aluminium Alloy
Cable entry	1 x M20 or ?” NPT
Dimensions	122 x 122 x 75 mm
Weights	Plastic Version (excluding weatherguard) – 660grams Marine Version (excluding weatherguard) – 1Kg Weatherguard – 225 grams
Display Type	LCD
Gas Types	Oxygen Toxic Flammable Note: Infrared sensors have no response to Hydrogen
Operating Voltages	8 to 24 volts dc (for 4 to 20 mA signal) (infrared and pellistor versions also requires an additional dc supply to power the sensor).
Output Signal	0mA - open circuit 2mA - fault 4mA - zero gas 20mA - full scale gas 22mA - over-range
Max. Cable Loop Resistance	Signal - 560 ohms at 24vdc Pellistor Sensor - 19 ohms at 7.5vdc Infrared Sensor - 15 ohms at 7.5vdc
Sensor Type	Electrochemical NDIR Infrared Pellistor (catalytic bead)
Measurement range	Dependent upon sensor type
Response time	Sensor response times vary according to the sensor type
Measurement Resolution	Dependent upon sensor type
IP rating	Enclosure IP66, Sensor IP65
Operating Temperature	Varies with sensor type, typically - 20 to +40°C
Storage Temperature	-20 to +50°C
Humidity Range	Oxygen - 0 to 99% RH non-condensing Toxic - 15 to 95% RH non-condensing Infrared – 0 to 95% RH non-condensing Pellistor - 0 to 95% RH non-condensing
Operating Pressure	Ambient + or - 10%
Hazardous Area Certification
Certificate Numbers	Oxygen & Toxic Sensors - BAS 01ATEX2300, Code II 2 G Ex ia IIC T4 Gb (-20°C≤Ta≤+60°C) Infrared & Flammable sensors - BAS 01ATEX2300, Code II 2 G Ex db ia IIC T4 Gb (-20°C≤Ta≤+60°C)
Standards	EN 60079-0:2018 EN 60079-1:2014 EN 60079-11:2012
Zones	1 & 2