Product category:
Environmental contamination, noise, dust and fume extraction, sensors
News Release from: Crowcon Detection Instruments | Subject: Xgard Type 4 gas detector
Edited by the Manufacturingtalk Editorial
Team on 02 December 2005
High-temperature gas detector is
ATEX-certified
The new ATEX-certified Xgard Type 4 gas detector from Crowcon is designed to quickly detect flammable gases in high-temperature applications (up to 150C).
The new ATEX-certified Xgard Type 4 gas detector from Crowcon is designed to quickly detect flammable gases in high-temperature applications (up to 150C) such as gas turbines, gas-fired drying ovens or printing and coating processes Gas turbines are usually operated with natural gas (or sometimes naphtha) at high flow volumes, so a gas leak could be extremely dangerous
This article was originally published on Manufacturingtalk on 7 Feb 2006 at 8.00am (UK)
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High temperature gas detector is ATEX certified
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According to the UK's HSE [Guidance Note PM84 - Control of safety risks at gas turbines used for power generation], at least one gas detector should always be installed if a gas turbine has a continuous gas supply.
This detector should be located in the ventilation outlet, as a leak will always reach it.
Additional detectors can also be installed at other points around the turbine to increase the probability of detecting small leaks.
The main detector in the ventilation outlet should be set to alarm at the lowest practical level - preferably below 5 per cent of the lower explosion limit (LEL) but no higher than 10 per cent.
Because of the extremely high temperatures generated by gas turbines, conventional sensors cannot be used.
The Xgard Type 4 is therefore particularly suitable for this application.
Suitable for Zone 1 and Zone 2 hazardous areas, the detector's sensor contains poison-resistant catalytic beads that can detect hydrocarbons at high temperatures.
With a life of up to five years, the Xgard Type 4's sensor has a 316 stainless steel housing, with the choice of a marine-grade aluminium or 316 stainless steel junction box for high corrosion resistance in extreme environments.
The aluminium junction box is protected by a tough polyester coating.
Both types of junction box have lugs for both wall- and ceiling-mounting, thereby removing the need for additional brackets, while a choice of four cable gland sizes allows quick and easy installation on any site.
For more information, please visit Crowcon's website. Request a free brochure from Crowcon Detection Instruments ...
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