Fixed multifunction gas detector Xgard

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Model: Xgard
Manufacturer: Crowcon 
Status: Stocking
Guarantee: 12 months
Price: Contact

The Xgard Fixed Versatile Gas Detector is a comprehensive selection of fixed point gas detectors that meet the diverse requirements for gas detection in industries worldwide. This gas detector covers a wide range of water treatment, oil and gas, energy, research facilities and production installations.


I. Specification of Xgard fixed multifunction gas detector

Fixed multifunction gas detector Xgard


  • The Crowcon Xgard stationary gas detector model is available in Intrinsically Safe (IS) or Flameproof (Exd) versions, with housing options including premium alloy, stainless steel or chemically resistant GRN polymer. Certifications include IECEx, ATEX, UL and GOST-CHEAP.

Low cost:

  • The Xgard Crowcon fixed multifunction gas detector is designed for easy installation and maintenance – reducing costs
    Three junction box options – designed for extremely simple replacement of sensors and sinters. Redundant sensors are simply plug-in
    Wide range of spare parts common to all Xgard models – keeping spare parts requirements to a minimum.

Flexible installation options:

  • Designed for wall or ceiling mounting – no extra brackets needed.
  • Can accommodate M20, 1/2 NPT or 3/4″ NPT cable routes – to suit all system requirements
  • Xgard Crowcon stationary universal gas detector with multiple high temperature models available for hot environments (up to 150 oC)
  • Accessories are available for remote pipe and gas sampling and mounting applications – simple sensor testing.

A wide range of sensors:

  • One sensor for all flammability detection needs including hydrocarbons, hydrogen, ammonia, jet fuels, leaded gasoline and halogenated vapors
  • Electrochemical sensors are used to detect a lot of toxic gases and oxygen
  • Thermal conductivity sensor available to monitor % volume concentration of gas.

Sure and reliable:

  • The Crowcon Xgard Crowcon Fixed Gas Detector is manufactured in three materials: glass-reinforced nylon, high-strength aluminum with a tough polyester coating, or 316 stainless steel for ultimate corrosion resistance – engineered to operate even in the harshest environments.
  • Spray deflectors and weather caps are available for use in areas subject to frequent washing, or offshore environments.
  • All models have been validated to the functional safety standard IEC 61508 (SIL 1 to SIL 3).

***View more of GMGA’s stationary universal gas detectors at:

II. Specifications of Crowcon Xgard fixed gas detector

Type 1 Type 2 Type 3 Type 4 Type 5 Type 6 Xsafe
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) 1kg (2.2lbs)
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 Aluminium
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 Catalytic bead
Operating temperature -20 to +50 °C (-4 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) mV: -40 to +80oC (-40 to 176oF) mA: -40 to +55oC (-40 to 131oF
Humidity 10 to 95% RH non-condensing 0-99% RH non-condensing 0-90% RH 0-99% 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 mA: 10- 30V dc mV:2.0Vdc
Power requirements 24mA maximum 300mA (Typical) 50mA at 24V dc 1.2W MA:50mA at 24V dc 1.2W mV: 300mA (Typical)
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) mA: 3- wire 4-20mA (current sink or source) mV: 3- wire mV bridge Typical signal: 12-15mV/ %LEL CH4
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
Exd IIC T6 Gb (Tamb -40 to +50°C)
UL: Class I, Div. 1
Groups B, C, D
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
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
EMC compliance EN 50270       FCC Part 15    ICES- 003

***Product main path: Xgard Fixed Multi Gas Detector.


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