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Posted By Paul Gildernew
Hi all,
Can someone recommend whats the best portable monitor to purchase for alerting users that they are in an oxygen deficient environment and who sells it.
The only one i used before which was very good and durable was the tetra 4 gas detector.
Are there any others you use in your workplace regularly and how much are they
Thanks
Paul
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Posted By Stuart Nagle
Paul.
There are a quite a number of electronic gas monitors available on the market, and most 'multi-gas' monitors will include a sensor to monitor oxygen depletion, although you can actually specify which sensors you want...
There are some cheaper 'muti-gas' monitors now available, but having some experience, I can advise you that you get exactly what you pay for...Buy cheap and they will not last the course!!
I would say the average prices for a 'multi-gas' monitor can be anywhere from £350 to £650+ (up to £1000) depending on the manufacturer, model, function and number of gas sensors etc that can be fitted. If you need the extras, such as additional batteries, chargers, tubes and hand-pump bulbs, protective cases, test gases, software etc etc... be prepared to pay more.
If you simply require a single-gas monitor for oxygen specifically, these can be purchased at a fairly reasonable price.
A trawl of the WWW on a search engine with the words 'Gas Monitors' will get you a load of sites where further information can be sought and specifications downloaded...
Stuart
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Posted By Jim Walker
Stuart (or anyone),
Can you advise me of a cheap reliable O2 meter to screw on the wall in a potential confined space?
Paul, sorry about the hijack.
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Posted By John Donaldson
I have purchased gas monitoring instruments from RS Components.
But just take into account that they will require calibration and testing up to twice a year and that the “Cell” will also require to be replaced every so often.
I would suggest you build in a recurrent cost of at least £100 per year to cover this
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Posted By Iain Holland I've got 2 neotronics units that have been in use for the past 12 years. These were calibrated every 6 months religiously and i've now decided to dispose of them as theyre just a bit old. So theyre definately reliable. Zellweger Analytics bought over Neotronics a number of years ago and I purchased a full supply of "Impulse XT"'s from them. Its a portable O2 monitor similiar size to a pager and costs about £150 per unit. They do not require calibration, you switch them on, two years later they fail to function and require replacement. "Impulse XP"'s I believe are the same, however require calibration and dont have a limited life. Based on the cost difference between them and the cost of calibration I suggest you go with the Impulse XTs which I can highly recommend. Zellweger: http://www.zelana.com/
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Posted By Paul Gildernew
Thanks all for your advice on this matter.
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