testo 340 - Flue gas analyser for use in industry

Order-Nr.  0632 3340

  • Can measure CO, COlow, NO, NOlow, NO2 or SO2

  • Extended measuring range for use in environments with high gas concentrations

  • Precalibrated gas sensors for quick and easy sensor change

  • Integrated pressure difference and air flow measurements for mass flow calculations

Emission checks in industry: Professional technology meets practical design. The testo 340 combustion analyser is an easy-to-use flue gas analyser that can be fitted with up to four different gas sensors.

Product Description

Precise technology: That’s what you want to be able to rely on when you’re working out in the field. But precise technology is nothing if it is not versatile, easy to use and adaptable for use in the field. The testo 340 flue gas analyser ticks all these boxes.
The testo 340 combustion analyser. For industrial emission measurements and more

Which sensors do you need in the course of your daily work and which measurements do you normally need to carry out? The testo 340 comes standard-fitted with an O2 sensor and four more sensors (CO, NO, NOlow, NO2 or SO2) for you to choose from, allowing you to customise your analyser to suit your individual demands. The analyser’s compact design and the reliable technology tucked away inside ensure increased mobility, making it ideal for use in international service operations and for installing or carrying out checks on firing plants or energy production systems. To find out more about the different application possibilities and to see which industrial applications your testo 340 flue gas analyser is suitable for just click on the “Applications” tab.
High gas concentrations? No problem with the testo 340!

The flue gas analyser has an extended measuring range which allows you to carry out measurements even when gas concentrations are very high (i.e. during industrial flue gas analysis). The extended measuring range (thinning) is activated automatically when high gas concentrations suddenly occur. The demands on the sensor are no different to than when the flue gas analyser is used in low gas concentrations.

 

Delivery Scope

testo 340 flue gas analyzer, calibration certificate, 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

±0.5 hPa (-49.9 to 49.9 hPa)

±1.5 % of mv (Remaining Range)

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 CO (with H₂-compensation)

Measuring range

0 to 10000 ppm

Accuracy

±10 ppm or ±10 % of mv (0 to 200 ppm)

±20 ppm or ±5 % of mv (201 to 2000 ppm)

±10 % of mv (2001 to 10000 ppm)

Resolution

1 ppm

Reaction time t₉₀

< 40 s

Flue gas COlow

Measuring range

0 to 500 ppm

Accuracy

±2 ppm (0 to 39.9 ppm)

±5 % of mv (Remaining Range) data corresponds to 20°C ambient temperature. Additional temperature coefficient 0.25% of reading/K.

Resolution

0.1 ppm

Reaction time t₉₀

< 40 s

Flue gas NO

Measuring range

0 to 4000 ppm

Accuracy

±5 ppm (0 to 99 ppm)

±5 % of mv (100 to 1999 ppm)

±10 % of mv (2000 to 4000 ppm)

Resolution

1 ppm

Reaction time t₉₀

< 30 s

Flue gas Nolow

Measuring range

0 to 300 ppm

Accuracy

±2 ppm (0 to 39.9 ppm)

±5 % of mv (Remaining Range)

Resolution

0.1 ppm

Reaction time t₉₀

< 30 s

Flue gas NO₂

Measuring range

0 to 500 ppm

Accuracy

±10 ppm (0 to 199 ppm)

±5 % of mv (Remaining Range)

Resolution

0.1 ppm

Reaction time t₉₀

< 40 s

To avoid absorption, a maximum measurement duration of 2 hours should not be exceeded.

Flue gas SO₂

Measuring range

0 to 5000 ppm

Accuracy

±10 ppm (0 to 99 ppm)

±10 % of mv (Remaining Range)

Resolution

1 ppm

Reaction time t₉₀

< 40 s

To avoid absorption, a maximum measurement duration of 2 hours should not be exceeded.

Flue gas Draught

Measuring range

-40 to +40 hPa

Accuracy

±0.03 hPa (-2.99 to +2.99 hPa)

±1.5 % of mv (Remaining Range)

Resolution

0.01 hPa

Temperature

Measuring range

-40 to +1200 °C

Accuracy

±0.5 °C (0 to +99 °C)

±0.5 % of mv (Remaining Range)

Resolution

0.1 °C

Flue gas degree of effectivity, Eta (calculated)

Measuring range

0 to 120 %

Resolution

0.1 %

Flue gas loss (calculated)

Measuring range

0 to 99.9 %

Resolution

0.1 %

Flue gas dewpoint (calculated)

Measuring range

0 to 99.9 °Ctd

Resolution

0.1 °Ctd

Flue gas CO₂ calculation (calculated from O₂)

Measuring range

0 to CO₂ max

Accuracy

±0.2 Vol.%

Resolution

0.1 Vol.%

Reaction time t₉₀

< 40 s

General technical data

Dimensions

283 x 103 x 65 mm

Operating temperature

-5 to +50 °C

Housing

TPE PC

Protection class

IP40

Display size

160 x 240 pixels

Display function

Graphic display

Power supply

Battery block 3.7 V / 2.4 Ah, Mains unit 6.3 V / 2 A

User defined fuels

10 user-defined fuels incl. test gas as fuel

Max. neg. press./flue gas

-200 mbar

Max. pos. press./flue gas

50 mbar

Hose length

max. 7.8 m (corresponds to two probe hose extensions)

Pump flow

0.6 l/min (regulated)

Maximum

100 folders

Storage per folder

Max. 10 sites

Storage per site

Max. 200 logs

Miscellaneous

The max. number of logs is determined by the number of folders or sites

Storage temperature

-20 to +50 °C

Weight

960 g

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.

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Manuals

Software