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Baseefa Ltd

Crowcon strengthens Gas-Pro range with infrared capability

07 April 2015

Crowcon, the gas detection specialist, has further strengthened its Gas-Pro range with the introduction of the Gas-Pro IR. This latest offering detects methane, pentane or propane using infrared IR sensor technology.  The Gas-Pro range, celebrated for its portability and confined spaces functionality, sees the addition of this IR version as the ideal detector for the oil and gas industry.

The infrared measurement gives improved reliability over pellistor-based sensor systems. The IR system provides a number of potentially key advantages in the oil and gas environment:
A pellistor-based sensor may be poisoned by low levels (parts per million) of contaminants such as silicone or lead. Other compounds can inhibit them, for example hydrogen sulphide. This is a particular threat in the oil and gas industry.

With little chance of being poisoned, the Gas-Pro IR is inherently safer and saves the need of regular and expensive pellistor replacement when used in likely contaminated environments. Unlike detectors based on pellistors, IR technology is fail-safe, so in the unlikely event of a sensor fault, the user will automatically be alerted.

Another distinct benefit is its application in low oxygen environments, particularly in confined spaces where the movement of air/gas is naturally restricted. In places such as fuel storage tanks, where an inert gas has been flushed through prior to maintenance, the low oxygen environment (typically, under 5% of the local atmosphere) means a pellistor-based sensor could not be relied on to test the level of fuel vapour.

Gas-Pro IR measures in %LEL – standing for lower explosive limit – which is the lowest concentration of a gas or vapour in normal air capable of combustion in the presence of an ignition source.  Gas-Pro IR has been certified for use in hazardous areas as defined by both ATEX/IECEx and UL.

The Gas-Pro IR carries forward the simple calibration and easy testing that is synonymous with the Gas-Pro range. Gas-Pro IR now completes the Gas-Pro range which gives greater flexibility for sensor selection in a 5-gas multi-gas detector.


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