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Gas Sensor Housing (GSH4) for Flameproof Fixed Gas Detectors

ATEX and IECEx Ex’d Certified Housing

Features

Stainless steel construction with tamperproof protection
For use with suitable separately certified industry standard junction boxes or OEM gas detector enclosures
Compact Size
Various mounting threads available M20, ½” NPT, ¾” NPT
Can be fitted with a range of different sensor technologies (Infrared, Catalytic (Pellistor) or Electrochemical)
Range of accessories available for gas application and environmental protection

These flameproof gas sensor heads that can be fitted with a range of different sensor technologies (infrared, pellistor, electrochemical) for detection of a wide variety of gasses, depending on the sensor fitted.

They are Ex d certified components and as such must be fitted into compatible separately certified apparatus such a Flameproof (Ex d) junction box, Increased Safety (Ex e) junction box or Flameproof (Ex d) gas detector instrument housing.

Notes:

The temperature ranges stated here refer to the GSH4 Ex'd sensor housing only. Refer to the relevant sensor data sheet for the sensor specifications.

When the data communications facility is not required, the ends of the brown and orange wires should be insulated and secured to prevent electrical contact with any other wires or metalwork.

Specification Datasheets

Type	Exd Certified Flameproof sensor housing.
Material	Stainless Steel grade 303, (Grade 316 available at additional cost)
Body Dimensions	40 mm Diameter x 60 mm Long (excluding a thread length of up to 20mm)
Weights (approx.)	280 grams
Operating Temperature	-20ºC to +60ºC See note 1 below.
Storage Temp	-20ºC to +60ºC See note 1 below.
Humidity Range	0 to 95% R.H. Non-condensing
Sensor Supply Voltage	Dependent upon sensor type
Electrical Output	Dependent upon sensor type
Gas Type	Dependent upon sensor type
Sensor Type	Electrochemical NDIR Infrared Pellistor (catalytic bead)
Measuring Range	Dependent upon sensor type
Response Time	Dependent upon sensor type
Hazardous Area Certification
Atex	Sira 10ATEX1358X II 2 G Ex db IIC T4 Gb (T_amb = -20°C to 60°C), EN60079-0:2012+A11 :2013, EN60079-1:2014
IECEx	IECEx SIR 10.0184X Ex db llC T4 Gb (T_amb = -20°C to 60°C) IEC 60079-0 :2011 Edition 6.0, IEC 60079-1 :2014-06 Edition 7
Ambient Temperature	-20 to +60 O C (T4) (See note 1)
Zones	1 & 2

Gas Type	Power	Ex' Certified ATEX, IECEx, UL	SIL1 Option	Datasheet No.
GSH4-P Includes PCB for Dynament Premier Infrared Sensor	NA	Yes	NA	TDS 0070.pdf
GSH4-7 Includes PCB for 7-Series Electrochemical Sensor	NA	Yes	NA	TDS 0075.pdf
GSH4-S Includes PCB for Dynament Standard Infrared Sensor	NA	Yes	NA	TDS 0076.pdf
GSH4-PID Includes PCB for PID Sensor	NA	Yes	NA	TDS 0006.pdf
GSH4-H2 Includes PCB for H2 Sensor	NA	Yes	NA	TDS 0015.pdf
GSH4-4 Includes PCB for 4-Series Electrochemical Sensor	NA	Yes	NA	TDS 00168.pdf