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Xgard / Xsafe

Σύντομη περιγραφή

Ανιχνευτές σταθερού σημείου για εκρηκτικά άερια, τοξικά και οξυγόνο.

Τεχνικό φυλλάδιο


 

  • Τάση : 10 – 30 V DC
  • Έξοδος :   4 - 20 MA (Αναλογική).
  • Διαστάσεις 156 Χ 166 Χ 111 ΜΜ
  • Έγκριση   Ε Εx ia II C T4

Λεπτομέρειες

The Xgard range of gas detectors has been specifically designed to meet your requirements. The dangers presented by toxic and flammable gases as well as oxygen deficiency vary with each application. 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.

Xgard Type 1

Exia Intrinsically Safe toxic and oxygen gas detector using an electrochemical sensor within an Xgard junction box, 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, contact Crowcon if detectors are to be used at extremes of temperature).
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 junction box, 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, contact Crowcon if detectors are to be used at extremes of temperature).

Xgard Type 3

Exd Flameproof flammable gas detector using a poison resistant pellistor within an Xgard junction box, which also contains the terminals to provide a 3-wire mV Wheatsone 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 junction box (aluminium), which also contains the terminals to provide a 3-wire mV Wheatsone 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 junction box, 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 junction box, which also contains an amplifier to provide a 3-wire 4-20mA output. Operating temperature +10 to +55°C.
Xgard Type 6 is designed to detect % vol. levels of gas in binary mixtures.

Notes: Xgard or Xsafe flammable gas detectors are calibrated in accordance with EN60079-20-1:2010  so that 100% LEL methane= 4.4% volume gas, 100% LEL  propane=1.7% volume gas. Optionally Xgard or Xsafe can be calibrated in accordance with alternative standards such that 100% LEL  methane= 5.0% vol. gas, 100% LEL  propane=2.2% vol. gas. Contact Kapa Automation for more details.

Xsafe

Flammable gas detector using a poison resistant pellistor contained within an aluminium junction box which has one cable gland entry on the right-hand side, with 3-wire mV or 4-20mA output. Operating temperature -40 to +80°C (mV version), -40 to +55°C (mA version).

Xsafe is NOT certified for use in a hazardous area.

 

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