G.M.I. Oxygas

Designed and manufactured for the special requirements of British Gas, and based on thevery successful Gascoseeker®Gas Detector, the main applications of the GMI Oxygas 2 portable gas detector is in purging operation and in other safety critical situations.

The Oxygas 2 employs the latest in micro-processor technology to produce a rugged, accurate, low-cost instrument with an extended operating life using pellistor type sensors for flammable gas and an electrochemical cell for Oxygen. a solid-state LCD provides both analogue and digital gas level displays, as well as status information and is automatically illuminated under poor lighting conditions. The display is protected from impact damage by toughened glass and a stainless steel plate. The instrument case is moulded from polypropylene to give high strength with light weight and all connections are within the instrument body, giving a smooth profile to reduce impact damage. The flow path is protected from water ingress by hydrophobic filter and a flow sensor.

The data for instrument calibration and management is accessible via a sealed infra-red link, thus the Oxygas 2 can be checked and calibrated without opening the instrument. When used with a GMI computer-controlled Depot Checker and integrated Instrument Management System, maximum of skilled staff time is ensured. This total package reduces the cost of ownership both in individual capital cost and in maintenance.

A typical application for the Oxygas 2 would be in the repair of gas distribution systems. In these situations, the pipe is closed at both ends and a Nitrogen based mixture is introduced to exhaust the combustible gas. Work can then be safely carried out on the pipe. It is thus crucial that the levels of combustible gas are checked to ensure that the Nitrogen compound has exhausted the gas, and that no potentially flammable air mixture has been introduced in the process. The GMI Oxygas 2 allows the user to check both levels with a certified intrinsically safe instrument.

The Oxygas 2 can operate in two models Purge Mode and Measure Mode.

In purging applications, the Purge Mode allows the user to switch between the Volume Gas and Oxygen ranges.

In other applications the Measure Mode is used and the Oxygas 2 auto ranges between the L.E.L and Volume Gas ranges. In this mode the instrument operates as the Gascoseeker® Mk2 Gas Detector, which is widely used throughout the gas industry