The Xgard range is a comprehensive selection of fixed point gas detectors that meet the diverse requirements for gas detection in industries throughout the world. This includes many water treatment, oil and gas, power, research facility and manufacturing installations.

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Quick Overview

Overview

Intrinsically Safe (I.S.) or Flameproof (Exd) versions are available, with case options comprising high-grade alloy, stainless steel or chemically resistant GRN polymer. Certifications include IECEx, ATEX, UL, GOST-R and MED.

Low cost of ownership

Designed for easy installation and maintenance - keeps costs down
Three junction box options - designed to make replacement of sensors and sinters extremely simple. Spare sensors simply plug-in
Many spare parts are common to all Xgard models - keeps spares holding requirements to a minimum

Flexible installation options

Designed for either wall or ceiling mounting - no need for additional brackets
Can accommodate M20, 1/2" NPT or 3/4" NPT cable glands - suits all site requirements
High temperature models are available for hot environments (up to 150^oc)
Accessories are available for duct mounting and sampling applications as well as remote gassing - simple sensor checking

Wide range of sensors

Poison resistant pellistors, for all flammable detection needs including hydrocarbons, hydrogen, ammonia, jet fuel, leaded petrol and vapours containing halogens
Electrochemical sensors are used to detect a vast range of toxic gases and oxygen
Thermal conductivity sensors are available to monitor % volume concentrations of gases

Rugged and reliable

Manufactured using a choice of three materials: glass reinforced nylon, highly durable aluminium with a tough polyester coating, or 316 stainless steel for ultimate corrosion resistance - designed to operate even in the harshest environments
Spray deflectors and weatherproof caps are available for use in areas subject to regular wash-downs, or offshore environments
All models have been validated to the functional safety standard IEC 61508 (SIL 1 to SIL 3)

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Details

Specifications

	Type 1	Type 2	Type 3	Type 4	Type 5	Type 6
Size	156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)			195 x 166 x 111mm (7.6 x 6.5 x 4.3 inches)	156 x 166 x 111mm (6.1 x 6.5 x 4.3 inches)
Weight	Nylon: 0.5 kgAlloy: 1kg (2.2lbs)316 S/S: 3.1kg (6.8lbs)	Aluminium: 1kg (2.2lbs)Stainless steel: 3.1kg (6.8lbs)		1.5 kg (3.3lbs)	Aluminium: 1kg (2.2lbs) Stainless steel: 3.1kg (6.8lbs)
Enclosure material	ATEX certified: Glass reinforced nylon or 316 S/SUL Certified: Aluminium or 316 S/S	Aluminium or 316 Stainless Steel		Aluminium	Aluminium or 316 Stainless Steel
Ingress protection	IP65			IP54	IP65
Cable entries	1 x M₂0, ¹/₂ “NPT or ³/₄ NPT* on right-side
Terminations	0.5 to 2.5mm₂
Sensor type	Electrochemical		Catalytic bead	316 S/S sensor housing with catalytic beads	Catalytic bead	Thermal conductivity
Operating temperature	-40 to +50 °C (-40 to 122 °F) (sensor dependant)	-20 to +50°C (-4 to 122°F)	-40 to +80°C (-40 to 176°F)	-20 to +150°C (-4 to 302°F)	-40 to +55°C (-40 to 131°F)	+10 to +55°C (50 to 301°F)
Humidity	10 to 95% RH non-condensing		0-99% RH non-condensing			0-90% RH
Repeatability Zero drift	<2% FSD (Typical)<2% FSD per Month (Typical)
Response time	T90 <15s OxygenT90 <30s to 120s Toxic(sensor dependant)		T90 <15s (Typical)
Operating voltage	8-30V dc		2.0V dc +/- 0.1V (Typical)		10-30V dc
Power requirements	24mA maximum		300mA (Typical)		50mA at 24V dc 1.2W
Electrical output	2- wire 4-20mA (current sink)		3- wire mV bridgeTypical signal: 12-15mV/ %LEL CH₄	3- wire mV bridgeTypical signal: >10mV/%LEL CH4	3- wire 4-20mA (current sink or source)
Approvals	ATEX: II 1 G Exia IIC T4 Ga (Tamb -40 to +55°C) UL/cUL: Class I, Div. 1 Groups A, B, C, D IECEx GOST-R	ATEX: II 2GD Exd IIC T6 Gb (Tamb -40 to +50°C) UL: Class I, Div. 1 Groups B, C, D IECEx GOST-R	ATEX: II 2 GD Exd IIC T4 Gb (Tamb -40 to +80°C) Exd IIC T6 Gb (Tamb -40 to +50°C) Ex tb IIIC T180°C Db UL: Class I, Div. 1 Groups B, C, D IECEx GOST-R	ATEX: II 2 GDExd IIC T3 Gb (Tamb -40 to +150°C)	ATEX: II 2 GDExd IIC T6 Gb (Tamb -40 to +50°C) Exd IIC T4 Gb (Tamb -40 to +80°C) Ex tb IIIC T180°C Db UL: Class I, Div. 1 Groups B, C, D IECEx GOST-R
EMC compliance	EN 50270 FCC Part 15 ICES- 003