Crowcon Xgard Type 3, Type 4 & Type 5

Crowcon Xgard Type 3, Type 4, Type 5

 

 

Crowcon Xgard Type 3, Type 4, Type 5 

Xgard Fixed Gas Detector Range

Flameproof Flammable Gas Detectors

ATEX Certified

Crowcon Xgard Range

Crowcon Xgard Type 3 Gas Detector

The Xgard Type 3 is designed to detect gases at concentrations that don’t exceed the Lower Explosive Limit (LEL). The flameproof flammable gas detector uses pellistors as part of a 3-wire Wheatstone Bridge circuit. This must be connected to an acceptable control card. The Crowcon Xgard Type 3 can operate in temperatures up to 80°C (176°) and can be used in Zone 1 and Zone 2 hazardous areas.

Crowcon Xgard Type 4 Gas Detector

The Xgard Type 4 is a flameproof high temperature flammable gas detector. Able to withstand temperatures of 150°C (302°F) this fixed gas detector can detect a wide variety of flammable gases in the air. Like the Type 3 it has to be concentrations that don’t exceed the Lower Explosive Limit (LEL) of the target gas which is calibrated. Again this Xgard version can be used in Zone 1 and Zone 2 hazardous areas and uses pellistors and the same circuit as the Xgard Type 3 (see above).

Crowcon Xgard Type 5 Gas Detector

The Xgard Type 5 is a flameproof catalytic bead type flammable gas detector with 3-wire 4-20mA output proportional to gas concentration. This version of the Xgard is powered by 24 V dc and is able to detect flammable gases in the ambient air at concentrations not exceeding the Lower Explosive Limit (LEL). Same as the Crowcon Xgard Type 3 and 4 this fixed gas detector is suitable for use in Zone 1 and Zone 2 hazardous areas.

Crowcon Xgard Type 3, Type 4 & Type 5 Fixed Gas Detectors – Gas Ranges
Gas type  LTEL(ppm) LEL(%vol)  STEL(ppm) UEL(%vol)  Type 3,4,5 
Acetylene (C2H2) 2.3 (2.4)  100  0-100% lel*
Ammonia (NH3) 25 15 / (15)  35 / 33.6 (28)  0-25%lel*
Butane (C4H10) 1.4 / (1.8)  9.3 / (9)  0-100% lel*
Ethane (C2H6) 2.5 / (3)  15.5  0-100% lel*
Ethylene (C2H4) 2.3 / (2.7)  36  0-100% lel*
Hydrogen (H2) 77 / (80)  0-100% lel*
LPG  10  0-100% lel
Methane (CH4) 4.4 / (5)  17 / (15)  0-100% lel
Pentane (C5H12)  1.4 (1.5) / 600ppm  7.8 (7.8) / 1800ppm 0-100% lel*
Petrol Vapour  1.3  0-100% lel*
Propane (C3H8) 1.7 / (2.2)  10.9 / (10)  0-100% lel
Vinyl Chloride (VCM) (CH2=CHCl)  3.6 / 3  33 / - 0-100% lel*

*Ranges not available for Xgard Type 4

Crowcon Xgard Range - Type 3, 4, 5

*For the advantages and features of the Crowcon Xgard Type 3, 4, 5 fixed gas detectors please click the Crowcon Xgard overview page or see the specification sheet below.

T&D distribute the full range of Crowcon fixed gas detectors.

For further information about portable and fixed gas detection visit Crowcon Gas Detectors.  

Contact T&D for competitive prices and delivery for Crowcon Xgard Type 3, 4 & 5.

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Crowcon Xgard

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