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testo 340 - Flue gas analyser for use in industry
0632 3340
testo 340 - Flue gas analyser for use in industry
0632 3340Customisable Gas Sensors – Supports up to four configurable gas sensors for flexible and on-site replacements.
Comprehensive Measurement Capabilities – Measures O₂, CO, COlow, NO, NOlow, NO₂, and SO₂ for a wide range of applications.
Versatile Kit Configurations – Available in three different kit options to suit specific industrial needs.
Designed for Industrial Use – Built for robust and demanding industrial applications.
Seamless Data Management – Transfer and analyse measurement data easily on a PC or notebook.
The testo 340 flue gas analyser is a high-performance emissions monitoring tool designed for industrial applications. Equipped with an O₂ sensor, an integrated flow and pressure difference measurement feature, and a calibration protocol, it delivers precise and adaptable flue gas analysis. The ability to add up to four gas sensors makes it suitable for a variety of industrial environments, ensuring reliable performance in high gas concentration conditions.
Designed for use in challenging field conditions, the testo 340 is compact, robust, and easy to use, making it ideal for both domestic and international service operations. Its extended measuring range activates automatically in high gas concentration environments, ensuring precise and uninterrupted measurements while minimising sensor stress for prolonged operational life.
To suit different industrial requirements, the testo 340 is available in three distinct kit configurations, allowing you to choose the ideal setup for your specific application. Measurement data can be easily transferred and analysed on a PC or notebook, simplifying reporting and compliance tracking.
For leasing options and additional accessories, contact us today.
testo 340 flue gas analyzer, calibration protocol, shoulder strap, O2 sensor and integrated flow and pressure difference measurements.
PLEASE NOTE: Your testo 340 must be fitted with a second gas sensor for it to work. Up to three additional sensors can be fitted.
Differential Pressure - Piezoresistive
| Measuring range | -200 to 200 hPa |
|---|---|
| Accuracy | ±1.5 % of mv (Remaining Range) ±0.5 hPa (-49.9 to 49.9 hPa) |
| Resolution | 0.1 hPa |
Absolute Pressure
| Measuring range | +600 to +1150 hPa |
|---|---|
| Accuracy | ±10 hPa |
| Resolution | 1 hPa |
Flue gas O₂
| Measuring range | 0 to 25 Vol.% |
|---|---|
| Accuracy | ±0.2 Vol.% |
| Resolution | 0.01 Vol.% |
| Reaction time t₉₀ | < 20 s |
Flue gas probes
Flue gas probes
Quick-Change Click System – Effortlessly replace the probe shaft for increased flexibility and convenience.
:
0600 9766
0600 9766
Flue gas probes
Quick-Change Click System – Effortlessly replace the probe shaft for increased flexibility and convenience.
:
0600 9767
0600 9767
Flue gas probes
Quick-Change Click System – Effortlessly replace the probe shaft for increased flexibility and convenience.
:
0600 8764
0600 8764
Flue gas probes
Quick-Change Click System – Effortlessly replace the probe shaft for increased flexibility and convenience.
:
0600 8765
0600 8765
Flue gas probes
Quick-Change Click System – Effortlessly replace the probe shaft for increased flexibility and convenience.
:
0600 8766
0600 8766
Flue gas probes
Easy probe shaft replacement via quick-change click system
:
0600 8767
0600 8767
Flue gas probes
Made of metal: no melting of the handle due to radiated heat from the flue gas duct
:
0600 7555
0600 7555
Flue gas probes
Useful for measurements on diesel engines: preliminary filter provides protection from diesel particulates
:
0600 7556
0600 7556
Flue gas probes
The industrial probe set 1 200 °C enables the extractive sampling of flue gas analysed at high flue gas temperatures (up to 1 200 °C) or for applications involving large flue gas pipe diameters.
:
0600 7610
0600 7610
Pitot tubes
Pitot tubes
Stainless steel Pitot tube, length 350 mm, Ø 7 mm - for measuring flow velocity
:
0635 2145
0635 2145
Pitot tubes
Stainless steel Pitot tube, length 500 mm, Ø 7 mm - for measuring flow velocity
:
0635 2045
0635 2045
Pitot tubes
Stainless steel Pitot tube, length 1000 mm, Ø 7 mm - for measuring flow velocity
:
0635 2345
0635 2345
Temperature probes
Temperature probes
Combustion air temperature probe, immersion depth 60 mm
:
0600 9797
0600 9797
Temperature probes
Flexible positioning (immersion depth 190 mm, cable length 2.2 m)
:
0600 9787
0600 9787
Accessories
Accessories
testo easyEmission software
:
0554 3334
0554 3334
Accessories
International mains unit
:
0554 1096
0554 1096
Accessories
testo fast printer IRDA
:
0554 0549
0554 0549
Accessories
O2 replacement sensor
:
0393 0000
0393 0000
Accessories
O2 Longlife replacement sensor for testo 340/350
:
0393 0012
0393 0012
Accessories
CO (H2-compensated) replacement sensor
:
0393 0100
0393 0100
Accessories
COlow (H2-compensated) replacement sensor
:
0393 0102
0393 0102
Accessories
NO replacement sensor
:
0393 0150
0393 0150
Accessories
NOlow replacement sensor
:
0393 0152
0393 0152
Accessories
NO2 replacement sensor
:
0393 0200
0393 0200
Accessories
SO2 replacement sensor
:
0393 0250
0393 0250
Analysis of the gas atmosphere (thermal processes)
Flue gas analysis is used for thermal manufacturing processes, from ongoing emission control, via setting and optimisation of combustion systems, through to process monitoring. Flue gas analysis instruments serve to optimise operations and save fuel. At the same time, flue gas measurement enables checking and monitoring of flue gas emission limit values laid down by the authorities, along with functional testing of permanently installed emission instruments. Flue gas analysis instruments are increasingly used for monitoring process and product quality.
Advantages of the testo 340
Ideal for measurements at high concentrations
- When recording extremely high concentrations, the measuring range extension is automatically activated. This enables continuation of the measurement. The gas sensor is not subjected to any higher stress than it is at low gas concentrations. This ensures the sensor has the longest possible service life.
Service measurement on industrial engines
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. Flue gas measurement is used on industrial engines when they are commissioned, at regular maintenance intervals or for troubleshooting when they are running in an unstable way. The background to flue gas measurement is tuning the engine to the optimum operating parameters while complying with the limit value regulations in force. Maintenance work that is carried out regularly makes an important contribution to avoiding downtimes over the long term, to ensuring the quality of the system and thus a high level of efficiency and to having a significant influence on emission levels.
Advantages of the testo 340
Separate NO and NO2 measurement
- The real NOx value is measured with the NO and NO2 sensor combination. In gas engines, the NO2 component of the NOx value can fluctuate greatly, so the separate measurement of each of the gases is necessary for correct NOx values.
Measurements even at high CO concentrations
- At unexpectedly high concentrations (up to 50,000 ppm), the automatic dilution of the sensor with fresh air allows measurements even when the engine conditions are not defined, without negatively affecting the service life of the sensor.
Special flue gas probes for industrial engines as an accessory
- These probes are highly heat-resistant and specially designed to compensate for different pressure conditions, e. g. for measurements before and after the catalytic converter.
Engine-specific parameters
- The most important parameters for industrial engines such as O2, CO, NO, NO2, NOx and Lambda can be displayed simultaneously.
Service measurement on industrial burners
The testo 340 flue gas analysis instrument offers service engineers a vast range of technical functions. In addition to compliance with environmental regulations, it can also be used to check correct functioning and to optimise burner efficiency. Flue gas measurement is used on industrial burners for safe and efficient commissioning, at regular maintenance intervals or for troubleshooting when they are running in an unstable way.
Advantages of the testo 340
Time saving through helpful instrument pre-settings
- Typical fuels, a sensible sequence of flue gas parameters in the display and useful instrument settings are preset for each application. Tips on the display take the user through the measurement (no prior knowledge specific to the instrument needed). The testo 340 is ready for operation within just a few minutes.
Unrestricted measuring at high concentrations
- When commissioning burners or carrying out measurements on unfamiliar systems, very high concentrations can occur unexpectedly. The measuring range extension is automatically activated in such cases.
Always ready for use – even in tough day-to-day work
- The robust housing protects the measuring instrument from knocks.
- Datasheet testo 340(pdf, 407.83 kB)
- UK Declaration of Conformity testo 340(pdf, 67.89 kB)
- Instruction manual testo 340(pdf, 1.25 MB)
- Approval and Certification testo 340(pdf, 141.84 kB)
- Instruction manual easyEmission(pdf, 2.36 MB)
- testo 340 Firmware update(V1.21, 3.61 MB)
- testo usb driver - for various measuring instruments(v2.9.1, 2.02 MB)USB driver for the following devices with USB port: * USB Interface testo 174 / 177 - T + H * testo 300 / 320 / 330 / 330i / 335 / 340 / 350 * testo 435 * testo 556 / 560 / 570 / 580 * testo 635 * testo 735 * testo 845