Crowcon Xgard Type 4 Flameproof High Temperature Flammable Gas Detector
The Crowcon Xgard Type 4 is a Flameproof high temperature (150°C / 302°F) gas detector, designed to detect flammable gas present in ambient air, at concentrations not exceeding the Lower Explosive Limit (LEL) of the target gas for which it is calibrated.
Crowcon Xgard Type 4 operates using pellistors as part of a 3-wire Wheatstone Bridge (WB) circuit, and must be connected to a suitable control card.
Xgard Type 4 is certified II 2 GD Ex db IIC T3 Gb, and is suitable for use in Zone 1 and Zone 2 hazardous areas.
Each type of Xgard detector identified by a label fitted on the junction box body. Please quote the ‘model number’, ‘gas range’ and ‘sensor type’ when contacting for spares.
Crowcon Xgard Versatile Fixed Gas Detector with Flexible Installation Options
A comprehensive selection of fixed-point gas detectors, meeting global industry needs for flammable, toxic gas, and oxygen detection. Xgard offers three distinct sensor concepts, so you can choose exactly what you need for your site. Available in flameproof, intrinsically safe, or safe area formats, Xgard designed for use in any environment, regardless of classification.
Whichever version of the Xgard you choose, you can be confident that they’re all designed to operate in even the harshest conditions, and withstand the conditions of your specific space.
With flexible installation options, the Xgard series can be either wall or ceiling mounted, without the need for additional brackets. Designed for easy installation, the replacement of sensors and sinters is extremely simple all helping to keep maintenance costs down.
Key features include:
- Low cost of ownership – designed for easy installation and maintenance to reduce costs
- Spare sensors plug in easily for quick replacements
- Many spare parts are compatible across all Xgard models, minimising spare holding requirements
- Wide range of sensors
- Flexible installation options – designed for easy wall or ceiling mounting without additional brackets
- Accommodates M20, 1/2” NPT, or 3/4” NPT cable glands to meet all site requirements
- Accessories are offered for duct mounting, sampling applications, and remote gassing for simple sensor checking
- Rugged and reliable – Three material options: glass reinforced nylon, durable aluminum with a tough polyester coating, or 316 stainless steel for
superior corrosion resistance - All versions designed to perform reliably in the harshest conditions
- All models validated to the functional safety standard IEC 61508 (SIL 1 to SIL 3)
- Product Code: Crowcon Xgard Type 1 to Type 6
How to order (Specify Model): Select Xgard Type 4 (XG4-XX-XX-XX)
Example: XG4-A2-01-FD (Xgard Type 4 Aluminium 1/2NPT ATEX, IECEx CH4-100LEL)
| Part Number | Description |
| XG4-xx-xx-xx |
Xgard Type 4 Flameproof High Temperature Flammable Gas Detector |
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