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Exhaust gas analyser

Exhaust gas analyser


Today's cars emit increasingly reduced amounts of emissions. Saab is at the forefront in this area and wants to remain there. This increases the demands placed on exhaust gas analysers as regards accuracy and which gases they are to gauge. This section covers various pieces of equipment that fulfil Saab requirements. Use it as a reference when acquiring analysis equipment.

The exhaust gas analyser must be able to take CO, CO 2 , HC and O 2 readings in a quick and accurate manner.




Location in workshop

The scope and size of the workshop should be taken into consideration when determining equipment location. In a large workshop with several mechanics, a ceiling rail that can handle main different instruments is the best choice. In a small workshop with fewer mechanics, placing the equipment on a cart may be sufficient, although use of a ceiling rail is always preferred as it frees up floor space. Make sure that the hoses are no longer than 5 metres.

Technical performance


• The gauge should fulfil the requirements of OIML-1, which corresponds to a CO measurement resolution of at least 0.02% and an HC measurement resolution of at least 1 ppm. Any national requirements must also be heeded.

• The gauge must also have clearly marked controls and a display or monitor with large and clear digits/text that can also be read in sunlight.

• Automatic condensation separator with fine filter.

• Strive to purchase instruments with a short warm-up period. It is advantageous if the instrument has a standby mode, which shortens the start time. Response time should not exceed 10 s.

• There should be a flow indicator.

• Calibration with reference gas via automatic system

• The instrument must have a fixed service interval as well as maintenance and user instructions. Good access to service in the local market is also required.


Compare with the following equipment:


• Sun MGA 1500

• Bosch

Internet address: www.bosch.com

• TecnoTest 488

Internet address: www.tecnotest.com

• Opus 40

Internet address: www.opus.se