Crowcon Xgard Fixed Gas Detector

Code: Xgard Type 1, 2, 3, 4, 5 & 6
  • Versatile
  • Flammable, Oxygen & Toxic Gas
  • Flexible installation options

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The dangers presented by toxic and flammable gases as well as oxygen deficiency vary with each application. Crowcon Xgard offers four different sensor concepts (electrochemical, pellistor, infrared and thermal conductivity) so you can choose exactly what you need for your site. In addition, Xgard is available in flameproof, intrinsically safe or safe area formats for use in all environments, whatever the classification. Suitable for use with a range of cable glands; M20, 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.

Features

  • Simple Install and Maintenance, common spares for all Xgard types, minimise inventory
  • High-temperature model choice up to 150°C
  • Validated to IEC 61508 (SIL 1 to SIL 3)
  • Global Approvals ATEX/ IECEx UL, INMETRO & GOST-R
  • Choose models tailored to need: Xgard Type 1, Type 2, Type 3, Type 4, Type 5 and Type 6.

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Title Size
Xgard-Datasheet 249 KB
Xgard Manual 1 MB

Additional information

Weight0.09 kg

Ordering Information

Xgard Type 1

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 2-wire 4 to 20mA 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.

Xgard Type 2

Exd Flameproof toxic and oxygen gas detector using an electrochemical sensor within an Xgard enclosure, which also contains the amplifier/transmitter to provide a 2-wire 4 to 20mA output. Operating temperature -20 to +50°C (range varies for some sensor types).

Xgard Type 3

Exd Flameproof flammable gas detector using a poison resistant pellistor within an Xgard enclosure, which also contains the terminals to provide a 3-wire mV Wheatstone Bridge output. Operating temperature -40 to +80°C. Can be connected directly to Crowcon Gasmaster and Gasmonitor, an Accessory Enclosure accessory is required for connection to 4-20mA type control systems such as Vortex.

Xgard Type 4

Exd Flameproof flammable gas detector using a poison resistant pellistor within a 316 stainless steel housing attached to an Xgard enclosure (aluminium), which also contains the terminals to provide a 3-wire mV Wheatstone Bridge output. Operating temperature -20 to +150°C. Can be connected directly to Crowcon Gasmaster and Gasmonitor, an Accessory Enclosure accessory is required for connection to 4-20mA type control systems such as Vortex.

Xgard Type 5

Exd Flameproof flammable gas detector using a poison resistant pellistor within an Xgard enclosure, which also contains an amplifier to provide a 3-wire 4-20mA output. Operating temperature -40 to +55°C.

Xgard Type 6

Exd Flameproof gas detector using a thermal conductivity sensor within an Xgard enclosure, which also contains an amplifier to provide a 3-wire 4-20mA output. Operating temperature +10 to +55°C. Designed to detect % vol. levels of gas in binary mixtures.

Xgard Accessories

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.
C01254 Carbon cloth filter (self-adhesive) – for Xgard Types 3, 4 and 5 only. Removes long-chain hydrocarbons.
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.

Notes * = not compatible with Xgard Type 4.

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