Crowcon Xgard Type 1 Fixed Gas Detector

Code: Xgard Type 1
  • Oxygen or Toxic gas
  • IS approved
  • Zones 0, 1 or 2, Div 1 or 2

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The Xgard Type 1 is an Exia Intrinsically Safe toxic and oxygen gas detector using an electrochemical sensor within an Xgard enclosure, which also contains the amplifier/transmitter to provide a two-wire 4 to 20mA sink output. Operating temperature -40 to +50°C (range varies for some sensor types). A Zener barrier or galvanic isolator is required for I.S. hazardous area operation.

Suitable for use with a range of cable glands; M20 or 1/2″ NPT or 3/4″ NPT. There is a choice of housing; glass-reinforced nylon, durable aluminium with a tough polyester coating, or 316 stainless steel suitable for deployment in extreme environments, such as offshore or in heavy industry- corrosion resistant.

Units can be installed on walls or ceilings, with three junction box choices—replacement sensors plugin.  Accessories are available for duct mounting, sampling applications and remote gassing – simple sensor checking.  In wash down areas or marine applications, splash guards and weatherproof caps are available.


  • Simple install and maintenance, common spares for all Xgard types, minimise inventory
  • Validated to IEC 61508 (SIL 1 to SIL 3)
  • Ingress protection IP65
  • Response time T90 <15s Oxygen. T90 <30s to 120s Toxic
  • Global approvals ATEX/ IECEx UL, INMETRO & GOST-R
  • Size 156 x 166 x 111 mm (6.1 x 6.5 x 4.3 inches)
  • Weight Nylon 0.5kg, Aluminium 1kg & Stainless Steel 3.1kg


C011061 Accessory adaptor(spare) – M20 threaded adaptor for connecting other accessories
C01051 Collector cone – includes accessory adaptor. For aiding detection of light gases such as methane
C01052 Spray deflector – includes accessory adaptor. For outdoor installations & protection from water sprays
C01442 Weatherproof cap – includes accessory adaptor for use offshore or very wet environments
C01339 Flow adaptor, for use in sampling applications
C011063 Sun shield. Protects against excessive heat build-up due to direct sunlight. Supplied with fixing rivets
C03005 Calibration adaptor
S011918 Duct mounting kit. Stainless steel plate with 6mm remote calibration fitting. Max duct airflow: 6m/s. Not for use with SS Xgard
2575/1 Detector pulley system. Enables Xgard methane and hydrogen detectors to be lowered from high level for calibration
00109A Calibration termination box (ABS box which enables gas to be applied to detectors remotely, a spray deflector or collector cone is also required)
M04214 PTFE tube 6 mm OD x 1 mm wall for use with calibration termination box

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Title Size
Xgard-Datasheet 249 KB
Xgard Manual 1 MB
Xgard-Data-Sheet_es_ES 1 MB
Xgard-Data-Sheet_pt_BR 1 MB

Additional information

Weight0.09 kg


Xgard Type 1 Spare Sensor Modules

S011667/S            0-25ppm, ammonia

S011566/S            0-50ppm, ammonia

S011567/S            0-100ppm, ammonia

S012022/S            0-100ppm, ammonia (low temp., -40C)

S011673/S            0-250ppm, ammonia

S011677/S            0-500ppm, ammonia

S011679/S            0-1000ppm, ammonia

S011830/S            0-1ppm, arsine

S011658/S            0-3ppm, bromine

S011557/S            0-5ppm, bromine

S011572/S            0-50ppm, carbon monoxide

S011574/S            0-100ppm, carbon monoxide

S011576/S            0-150ppm, carbon monoxide

S011578/S            0-200ppm, carbon monoxide

S011259/S            0-250ppm, carbon monoxide

S011580/S            0-300ppm, carbon monoxide

S011582/S            0-500ppm, carbon monoxide

S011584/S            0-1000ppm, carbon monoxide

S011586/S            0-2000ppm, carbon monoxide

S011588/S            0-3ppm, chlorine

S011263/S            0-5ppm, chlorine

S011590/S            0-10ppm, chlorine

S011592/S            0-15ppm, chlorine

S011594/S            0-20ppm, chlorine

S011596/S            0-30ppm, chlorine

S011598/S            0-50ppm, chlorine

S011600/S            0-100ppm, chlorine

S011690/S            0-1ppm, chlorine dioxide

S011831/S            0-1ppm, diborane

S011558/S            0-10ppm, ethylene oxide

S011659/S            0-50ppm, ethylene oxide

S011515/S            0-100ppm, ethylene oxide

S011565/S            0-1ppm, fluorine

S011704/S            0-200ppm, hydrogen

S011706/S            0-500ppm, hydrogen

S011562/S            0-2000ppm, hydrogen

S011710/S            0-2% vol. (0-50% LEL ) hydrogen

S011834/S            0-4% vol. (0-100% LEL ) hydrogen

S011707/S            0-10ppm, hydrogen chloride

S011708/S            0-25ppm, hydrogen chloride

S011829/S            0-25ppm, hydrogen cyanide

S011602/S            0-30ppm, hydrogen cyanide

S011564/S            0-10ppm, hydrogen fluoride

S011604/S            0-2ppm, hydrogen sulphide

S011606/S            0-5ppm, hydrogen sulphide

S011608/S            0-10ppm, hydrogen sulphide

S011610/S            0-20ppm, hydrogen sulphide

S011257/S            0-25ppm, hydrogen sulphide

S011612/S            0-30ppm, hydrogen sulphide

S011614/S            0-50ppm, hydrogen sulphide

S011616/S            0-100ppm, hydrogen sulphide

S011618/S            0-200ppm, hydrogen sulphide

S011620/S            0-250ppm, hydrogen sulphide

S011622/S            0-300ppm, hydrogen sulphide

S011624/S            0-1000ppm, hydrogen sulphide

S011288/S            0-50ppm, nitric oxide

S011289/S            0-100ppm, nitric oxide

S011634/S            0-5ppm, nitrogen dioxide

S011561/S            0-10ppm, nitrogen dioxide

S011626/S            0-30ppm, nitrogen dioxide

S011628/S            0-50ppm, nitrogen dioxide

S011630/S            0-100ppm, nitrogen dioxide

S011563/S            0-1ppm, ozone

S011265/S            0-25% vol. oxygen

S011833/S            0-1ppm, phosgene

S011698/S            0-1ppm, phosphine

S011568/S            0-2ppm, phosphine

S011685/S            0-1ppm, silane

S011636/S            0-5ppm, sulphur dioxide

S011638/S            0-10ppm, sulphur dioxide

S011640/S            0-15ppm, sulphur dioxide

S011644/S            0-20ppm, sulphur dioxide

S011646/S            0-50ppm, sulphur dioxide

S011652/S            0-100ppm, sulphur dioxide

S011654/S            0-250ppm, sulphur dioxide

S011560/S            0-100ppm, volatile organics

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