Emission measurement

Emission analysis must fulfil a number of requirements. Testo constantly adapts to these requirements, offering products for continuous emission checks, tuning and optimisation of burners as well as process monitoring in thermal manufacturing processes.

The adaptive flue gas analysis systems which Testo has developed, produced and sold for the past 50 years not only deliver precision, but also focus on simplicity and convenience.

Testo exhaust gas & emission analyser series consist of the Testo 340 & Testo 350. The testo 340 is a 4 cell gas analysers which is the ultimate analyser for portable combustion and engine tuning. With the testo 340 you get a choice of O2, CO, COlow, NO, NOlow, NO2, and SO2 to suit ones individual needs. The Testo 350 Multiple Gas Analysis System provides a complete emissions monitoring solution without sacrificing ease of use.

When it comes to heavy duty applications, the testo 350 gas analyser is known for its reliability and accuracy. The Testo 350 in particular supports the direct measurement of 6 gases from a range of 10 sensors, not to mention the many other parameters necessary for managing the environment, efficiency and commissioning.

Compliance Testing


In most countries, operation of all types of industrial plants is subject to strict regulations governing exhaust gas emissions into the atmosphere.

  • Verify that the components defined as pollutants do not exceed certain limit values in the flue gas
  • Carry out a preliminary flue gas analysis before an official emissions reading

Efficiency testing


Flue gas analysis instruments are one of the items of equipment that are used on a daily basis by service engineers to achieve optimum tuning of engines.

  • Tune the engine to the optimum operating parameters while complying with the limit value regulations in force
  • Avoid downtimes over the long term

Process monitoring


Gas turbines are subject to flue gas limit values which are to be adhered to during operation and regularly checked depending on the size of the system.

  • Check the system's emission values for adherence to limit values and for the manufacturer's specifications
  • Extreme accuracy for the work on LowNOx gas turbines

Emission measuring: CHP

The emission analyzer testo 350

In order for a combine heat and power system to be operated profitably, some basic standards have to be guaranteed by the targeted use of suitable measurement technology.

  • Monitoring emission limit values
  • Controlling system efficiency
  • Testing of exhaust gas treatment systems

Efficiency testing on ships


On ships, as little visible smoke should be produced as possible, and the soot content kept to a minimum. n shipbuilding, the smoke count also plays an important part.

  • Test whether the smoke count of marine diesel engines does not exceed the prescribed limit values
  • Prove the soot emission in the diesel exhaust to custormers