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Crowcon Xgard Fixed Gas Detector

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Description

The Crowcon Xgard is a fixed multi gas detector which meets 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.

The Crowcon Xgard is also available as an Intrinsically Safe (I.S.) or Flameproof (Exd) version, with case options comprising high-grade alloy, stainless steel or chemically resistant GRN polymer. Certifications include IECEx, ATEX and UL.

Features
Low cost of ownership
Flexible installation options
Wide range of sensors
Rugged and reliable

Xgard Type 1 Xgard Type 2 Xgard Type 3 Xgard Type 4 Xgard Type 5 Xgard Type 6 Xsafe
Toxic or Oxygen Toxic or Oxygen Flammable Flammable Flammable % Volume
Gas Concentrations
CO2, CH , He, Ar
Flammable
Zone 0, 1 or 2, DIV 1 or 2 Zone 1 or 2, DIV 1 or 2 Zone 1 or 2, DIV 1 or 2 Zone 1 or 2, DIV 1 or 2 Zone 1 or 2, DIV 1 or 2 Zone 1 or 2, DIV 1 or 2 Safe Area
Intrinsically Safe electrochemical type detector with 2-wire 4-20mA output. Wide range of sensor options. A zener barrier or galvanic isolator is required for I.S. operation. Flameproof electrochemical type detector with 2-wire 4-20mA output. Flameproof catalytic bead type detector with 3-wire mV bridge output. Flameproof high temperature (up to 150°C) catalytic bead type detector with mV bridge output. Flameproof catalytic bead type detector with 3-wire 4-20mA output. Flameproof thermal conductivity type detector with 3-wire 4-20mA output. Non-certified low cost catalytic bead type detector with 3-wire 4-20mA or mV bridge output.

 

Gas LTEL (ppm)
LEL (% Vol)
STEL
UEL (% vol)
Range available:
Type 1
Range available:
Type 2
Range available:
Type 3, 4, 5 & Xsafe
Range available:
Type 6
Acetylene (C2H2) 2.3 100 0-100% LEL
Ammonia (NH3) 25
15
35
33.6
50, 100, 250,
500, 1000 ppm
0-25% LEL
Argon (Ar) Contact us
Arsine (AsH3) 0.05 1 ppm
Bromine (Br2) 0.1 0.2 3 ppm
Butane (C4H10) 1.4 9.3 0-100% LEL
Carbon dioxide (CO2) 5000 (0.5% Vol) 5000 (1.5% Vol) Contact us
Carbon monoxide (CO) 30 200 50, 100, 200,
250, 500, 1000,
2000 ppm
50, 100, 200,
250, 500, 1000,
2000 ppm
Chlorine (Cl2) 0.5 3, 5, 10, 20,
50, 100 ppm
Chlorine Dioxide (ClO2) 0.1 0.3 1 ppm
Diborane (B2H6) 0.1 1 ppm
Ethane (C2H6) 2.4 15.5 0-100% LEL
Ethylene (C2H4) 2.3 36 0-100% LEL
Ethylene oxide (C2H4O) 5 10, 50, 100 ppm
Fluorine (F2) 1 1 1 ppm
Germane (GeH4) 0.2 0.6 2 ppm
Helium (He) Contact us
Hydrogen (H2) 4 77 200, 2000 ppm 200, 2000 ppm
100% LEL
0- 100% LEL
50% LEL,
100% LEL
0-5%, 10%, 50%
vv (in air) 0-20%,
25%, 30%, 50%
vv (H2 in N2)
Hydrogen chloride (HCl) 1 5 10, 25 ppm
Hydrogen cyanide (HCN) 10 25 ppm
Hydrogen fluoride (HF) 1.8 3 10 ppm
Hydrogen sulphide (H2S) 5 10 5, 10, 20, 25, 50,
100, 200, 250,
300, 1000 ppm
5, 10, 20, 25, 50,
100, 200 ppm
LPG 2 10 0- 100% LEL
Methane (CH4) 4.4 17 0- 100% LEL
Nitric Oxide (NO) 5 5 25, 50, 100 ppm
Nitrogen dioxide (NO2) 1 1 10, 50, 100 ppm
Ozone (O3) 0.2 1 ppm
Oxygen (O2) 25% Vol 25% Vol
Pentane (C5H12) 1.1
600 ppm
8.7
1800 ppm
0- 100% LEL
Petrol vapour 1.4 6 0- 100% LEL
Phosgene (COCl2) 0.02 0.06 1 ppm
Phosphine (PH3) 0.1 0.2 1 ppm
Propane (C3H8) 1.7 10.9 0- 100% LEL
Silane (SiH4) 0.5 1 1 ppm
Sulphur Dioxide (SO2) 1 1 10, 20, 50, 100,
250 ppm
Vinyl chloride (VCM)
(CH2= CHCl)
3.6
3
33
0- 100% LEL
Volatile organics (VO) 0-100 ppm

 

Additional information

Subtype

Type 1, Type 2, Type 3, Type 4, Type 5, Type 6, Xsafe

Material

Aluminium, Glass reinforced nylon, Stainless steel

Gas Type

Ammonia 0-100ppm NH3 (-20C min), Butane 0-100%LEL pellistor, Carbon monoxide 0-100ppm CO, Carbon monoxide 0-250ppm CO, Ethylene 0-100%LEL pellistor, Hydrogen 0-100%LEL, Hydrogen sulphide (H2S) 0-100ppm, Hydrogen sulphide (H2S) 0-25ppm, Hydrogen sulphide (H2S) 0-50ppm, LPG 0-100%LEL pellistor, Methane 0-100%LEL pellistor, methane, 4-20mA, Calibration: 100%LEL= 4.4%vol, methane, 4-20mA, Calibration: 100%LEL= 5%vol, Methanol 0-100%LEL pellistor, Oxygen 0-25% vol O2, Petrol Vapour (unleaded) 0-100%LEL, propane (LPG), 4-20mA, Calibration: 100%LEL= 1.7%vol, propane (LPG), 4-20mA, Calibration: 100%LEL= 2.2%vol, Propane 0-100%LEL pellistor