xiv UK Focus - Gas Detection PS200 5-way Charger for Portable Gas Detectors


GMI (UK) have announced the release of the sleek and sturdy PS200 5-way Charger. The charging unit securely holds up to five PS200 portable gas detectors simultaneously and can be placed on a flat surface or mounted to a wall. Gas detectors are easily loaded in the unit with or without the rubber boot fitting. The new charger features a universal power supply and short circuit protection. Maximum charge time is less than 4 hours.


The PS200 portable gas detector is a rugged, easy to use instrument ideal for use in confined spaces and hotworks. Both lightweight and durable, the instrument monitors and displays up to four hazardous gas conditions simultaneously using catalytic bead sensor technology for a wide range of combustible gases, and electrochemical sensors for carbon monoxide, hydrogen sulphide, and oxygen deficiency. Single button activation allows the end user to quickly switch between diffusion and pump modes, offering the ultimate in flexibility and ease.


For More Info, email: 24149pr@reply-direct.com Leak Detection Equipment Used to Help Gain BREEAM Environmental Certification


Murco (Ireland) and Bacharach have had their range of refrigerant leak detection products used to gain BREEAM Certification. BREEAM (Building Research Establishment's Environmental Assessment Method) is the world's leading and most widely used environmental assessment method for buildings. One of the goals of BREEAM is to reduce the amount of greenhouse gas emissions from the leakage of refrigerants.


Section Pol 01 of the BREEAM Technical Manual outlines the assessment criteria for issuing credits for non-domestic buildings in relation to refrigerants. This section specifically defines criteria for using a permanent refrigerant leak detection system. One credit can be issued if the following criteria are met:


Where the systems using refrigerants have Direct Effect Life Cycle C02 equivalent emissions of (DELC C02e).


Where systems using refrigerants are contained in a moderately air tight enclosure (or a mechanically ventilated plant room), and an automated permanent refrigerant leak detection system is installed covering high-risk parts of the plant OR where a refrigerant leakage/charge loss detection system is specified, which is not based on the principle of detecting or measuring the concentration of refrigerant in air. The automatic shutdown and pump down of refrigerant occurs on the detection of refrigerant leakage/charge loss. Automatic pump-down to either a separate storage tank or into the heat exchanger is acceptable, but only where automatic isolation valves are fitted to contain the refrigerant once full pumped down. The alarm threshold that triggers automatic pump down upon detection of refrigerant in the plant room/enclosure is set to a maximum of 2,000 ppm (0.2%), but lower levels can be set. Use a robust and tested automated permanent refrigerant leak detection system, normally defined as that included on the Enhanced Capital Allowance (ECA) Energy Technology Product List1 (or an equivalent list).


For More Info, email: 25062pr@reply-direct.com


GASTEC Tubes Used for Spot Sampling in Metal Refineries The GASTEC gas detector tube system is a complete sampling and analysis system for


determining hazardous gas and vapour concentrations quickly and easily. The pump is used with unique colorimetric tubes which display results almost immediately, with no need for further lab analysis.


Recently, a1-cbiss supplied a large amount of tubes to a large worldwide metal refinery company as part of a trial to encourage them to switch from Draeger tubes to GASTEC because of the ease of usage.


The GASTEC tubes allow accurate detection in less pump strokes than using the Draeger Accuro Pump.


The tubes used in the refinery process as a spot checking technique included:


Chlorine (GAS8LA) is a corrosive, pungent smelling, green/yellow gas. It is a very heavy gas and is readily absorbed by most materials. The behaviour of chlorine makes it a very difficult gas to detect yet GASTEC tubes make this possible.


Hydrogen Sulphide (GAS4H) is well known because of its bad egg odour and can be detected by the human senses at less than 0.1ppm. High concentrations over 150ppm cannot be readily detected due to paralysis of the olfactory glands, and exposure over 1000ppm can lead to instant death. GASTEC tubes are used to spot check the correct levels of gas in the process.


Hydrogen Chloride (GAS14L) is a highly corrosive and toxic colourless gas that forms white fumes on contact with moisture. These fumes consist of hydrochloric acid which forms when hydrogen chloride dissolves in water. Inhalation of the fumes can cause coughing, choking, inflammation of the nose, throat, and upper respiratory tract, and in severe cases, death.


Nitric Oxide (GAS11L) is a colourless gas but nitrogen dioxide is an acid, pungent smelling, brown gas. Nitrogen Oxide that is produced is a bypass of the smelting process. At the point of exhaust, nitric oxide accounts for about 90% of NOx. However it reacts spontaneously with oxygen in the open atmosphere to produce nitrogen dioxide.


Mercaptans (GAS70) is added to natural gas (methane) to make it easier to detect in case of a leak: natural gas in its native state is colourless and odourless. Mercaptan contains sulphur, and has a strong odour similar to rotten cabbage or bad eggs.


The low cost of the tubes and easy change out option make them the perfect solution for spot sampling in such a fast paced environment.


“We have recently decided to change from Drager tube analysis to Gastec detector tubes. The main drive for the change is the competitive price of the Gastec tubes and the next working day delivery as standard from a1-cbiss. In addition after a trial of the Gastec pump the user found it easier and quicker to use as most of the time the Gastec pump requires only one pull against 10 strokes on the draeger pump” Commented the Process Control Manager.


email: 356ad@reply-direct.com For More Info, email: IET September / October 2013 www.envirotech-online.com 26795pr@reply-direct.com


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