For every job there is the correct tool. This old piece of wisdom applies equally well to flue gas analysis. For this reason there are hand-held analysers, analysers in soft or hard cases, 2 gas analysers, 4 gas analysers and so on. Somebody doing a quick boiler tune up on residential equipment will not need a 5 gas analyser and somebody doing an annual inspection of a 600 MW coal-fired power station will be lost with a 3 gas analyzer. To cover this wide range we also produce a 9 gas analyser, both stationary and portable for various ranges and working conditions. The infrared gas analyser is now more common and is integrated into the portable equipment as option where possible. A 6 gas analyzer may easily include 2 infrared sensors for CO2 or CH4. These work on the principle of infrared absorbance (absorption). Customer feedback is one of the most important factors in determining what equipment is to be developed or improved, and a series or requests for a 7 gas analyser will lead to optimisation of these types. We take pride in being at the forefront and offering what is required, from simple oxygen analyser to portable infrared or stationary equipment, otherwise known as CEMS (Continuous Emissions Monitoring Systems). Data transfer is essential with this type of flue gas analyser, and a range of industry standards exist, most of which are offered such as RS232C (the standard serial communication protocol), RS485 (industry standard allowing 256 instruments to be connected in a bus). Analogue outputs for both current and voltage are to be had and the newest developments are also Ethernet compatible. This allows for an easy connection to the global internet.
There are, nevertheless, certain points that should be borne in mind when choosing a flue gas analyser. Many are constructed in a modular fashion, so there may be the possiblity of expanding the capabilities of the instrument to comply with future regulations. It may be also possible to add a gas conditioning system to an existing analyser rather than replacing the entire flue gas analyser. The instrument chosen should be at least capable of covering present needs comfortably to be of any real use for future needs. There is no likelihood of regulations becoming less restrictive in future, but every chance that they will become more restrictive. The flue gas analyser will become more accurate and capable of measuring more components as these become required for EPA compliance testing or the national equivalent. The general expansion of EPA compliance testing to cover further components is a challenge to the flue gas analyser industry to produce modular instruments that will be able to meet future necessities. The increased number of suppliers is also a challenge to produce a cheap flue gas analyzer that is efficient and accurate. The flue gas analyser will become part of all industries that are involved in the design, production or maintenance of combustion facilities.