Stock Code
0632 3340

TESTO Flue Gas Analyzer For Use In Industry | TESTO 340
Emission control in industry: the testo 340 flue gas analyzer gives you professional technology, easy handling and practical execution in one instrument. The high-performance testo 340 flue gas analyzer is fitted with an O2 sensor and can be equipped with up to 3 additional sensors.

Your advantages
- 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
TESTO Flue Gas Analyzer For Use In Industry | TESTO 340 Description
Delivery Scope
Absolute Pressure
Flue gas O₂
Flue gas CO (with H₂-compensation)
Flue gas COlow (with H₂-compensation)
Flue gas NO
Flue gas Nolow
Flue gas NO₂
Flue gas SO₂
Differential Pressure flue gas Draught - Piezoresistive
Temperature
Flue gas degree of effectivity, Eta (calculated)
Flue gas loss (calculated)
Flue gas dewpoint (calculated)
Flue gas CO₂ calculation (calculated from O₂)
General technical data
TESTO Flue Gas Analyzer For Use In Industry | TESTO 340 Images



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 analyzer ticks all these boxes.
The testo 340 combustion analyzer. 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, COlow, NO, NOlow, NO2 or SO2) for you to choose from, allowing you to customize your analyzer to suit your individual demands. The analyzer’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 analyzer is suitable for just click on the “Applications” tab.
High gas concentrations? No problem with the testo 340!
The flue gas analyzer 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 analyzer is used in low gas concentrations.
Delivery Scope
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.
TESTO Flue Gas Analyzer For Use In Industry | TESTO 340 Technical Data
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
|
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 % of mv (2001 to 10000 ppm)
±10 ppm or ±10 % of mv (0 to 200 ppm)
±20 ppm or ±5 % of mv (201 to 2000 ppm)
|
Resolution |
1 ppm
|
Reaction time t₉₀ |
< 40 s
|
Flue gas COlow (with H₂-compensation)
Measuring range |
0 to 500 ppm
|
---|---|
Accuracy |
±5 % of mv (Remaining Range) data corresponds to 20°C ambient temperature. Additional temperature coefficient 0.25% of reading/K.
±2 ppm (0 to 39.9 ppm)
|
Resolution |
0.1 ppm
|
Reaction time t₉₀ |
< 40 s
|
Flue gas NO
Measuring range |
0 to 4000 ppm
|
---|---|
Accuracy |
±10 % of mv (2000 to 4000 ppm)
±5 ppm (0 to 99 ppm)
±5 % of mv (100 to 1999 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. |
Differential Pressure flue gas Draught - Piezoresistive
Measuring range |
-40 to +40 hPa
|
---|---|
Accuracy |
±1.5 % of mv (Remaining Range)
±0.03 hPa (-2.99 to +2.99 hPa)
|
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
Weight |
960 g
|
---|---|
Dimensions |
283 x 103 x 65 mm
|
Operating temperature |
-5 to +50 °C
|
Product-/housing material |
TPE PC
|
Protection class |
IP40
|
Connectable probes |
1 x flue gas probe; 1 x temperature probe; 1 x differential pressure
|
Product colour |
Black
|
Battery life |
> 6h (Pumpe an, Displaybeleuchtung aus, bei 20°C)
|
Display function |
Graphic display
|
Display size |
160 x 240 pixels
|
Display type |
graphic Display
|
Power supply |
Battery block 3.7 V / 2.4 Ah, Mains unit 6.3 V / 2 A
|
Hose length |
max. 7.8 m (corresponds to two probe hose extensions)
|
Max. neg. press./flue gas |
-200 mbar
|
Max. pos. press./flue gas |
50 mbar
|
Pump flow |
0.6 l/min (regulated)
|
User defined fuels |
10 user-defined fuels incl. test gas as fuel
|
Maximum memory |
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
|
Interface |
Bluetooth®; USB; IR/IRDA interface; gas outlet; Mains connection; probe input/ probe inputs; Differential Pressure
|
Storage temperature |
-20 to +50 °C
|
TESTO Flue Gas Analyzer For Use In Industry | TESTO 340 Images


