The Testo 350 Industrial Flue Gas Analyser is a gas exhaust analyser comprised of two parts:
Designed for conducting industrial emissions measurements in the field, the Testo 350 Industrial Flue Gas Analyser can be used to analyse emissions from:
The Testo 350 Control Unit controls emissions measurements. It can be used to operate the Testo 350 Analysis Box remotely which is particularly useful when working on larger systems. Via the clearly structured graphic display, you can choose one of four different application modes: burner, gas turbine, motors, or user-defined. Once the operating mode has been selected, the Testo 350 Control Unit will guide you through the measurement process, improving the ease, efficiency, and convenience of testing.
The Testo 350 Analysis Box contains the sensors required for measuring emissions. As standard the Testo 350 Analysis Box includes an oxygen (O2) sensor; however, you can choose to configure the tester with up to five more sensors. Select from:
The Testo 350 Analysis Box always displays the current reading. When high gas concentrations are detected, a measuring range extension function is automatically activated enabling unlimited measurement. Additionally, the Testo 350 Analysis Box offers an array of diagnostics functions that deliver easy-to-understand readings and information.
Additionally, this ergonomically designed flue gas analyser features an underside opening that provides convenient access to pumps and filters, enabling easy replacement and/or cleaning in the field. Other practical features include USB, Bluetooth or CANCase interfaces that support operation from devices other than the Testo 350 Control Unit such as a PC or notebook.
Furthermore, once the Testo 350 Analysis Box has been programmed, it can be left to carry out the required tests independently and save the results. These results may be transferred directly to the Testo 350 Control Unit.
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Temperature - NTC | |
Measuring range | -20 to +50 °C |
Accuracy | ±0.2 °C (-10 to +50 °C) |
Resolution | 0.1 °C (-20 to +50 °C) |
Note | Ambient temperature probe |
Temperature - TC Type K (NiCr-Ni) | |
Measuring range | -200 to +1370 °C |
Accuracy |
±0.4 °C (-100 to +200 °C) ±1 °C (-200 to -100.1 °C) ±1 °C (200.1 to +1370 °C) |
Resolution | 0.1 °C (-200 to +1370 °C) |
Temperature - TC Type S (Pt10Rh-Pt) | |
Measuring range | 0 to +1760 °C |
Accuracy | ±1 °C (0 to +1760 °C) |
Resolution | 0.1 °C (0 to +1760 °C) |
Differential Pressure - Piezoresistive | |
Measuring range |
-40 to +40 hPa -200 to +200 hPa |
Accuracy |
±1.5 % of mv (-40 to -3 hPa) ±1.5 % of mv (+3 to +40 hPa) ±0.03 hPa (-2.99 to +2.99 hPa) ±1.5 % of mv (-200 to -50 hPa) ±1.5 % of mv (+50 to +200 hPa) ±0.5 hPa (-49.9 to +49.9 hPa) |
Resolution |
0.01 hPa (-40 to +40 hPa) 0.1 hPa (-200 to +200 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 | ±0.8% of fsv (0 to +25 Vol.%) |
Resolution | 0.01 Vol.% (0 to +25 Vol.%) |
Reaction time t₉₀ |
20 s (t₉₅) |
Flue gas CO (with H₂-compensation) | |
Measuring range | 0 to +10000 ppm |
Accuracy |
±5 % of mv (+200 to +2000 ppm) ±10 % of mv (+2001 to +10000 ppm) ±10 ppm (0 to +199 ppm) |
Resolution | 1 ppm (0 to +10000 ppm) |
Reaction time t₉₀ | 40 s |
Note | H₂ only as an indicator |
Flue gas COlow (with H₂-compensation) | |
Measuring range | 0 to 500 ppm |
Accuracy |
±5 % of mv (+40 to +500 ppm) ±2 ppm (0 to +39.9 ppm) |
Resolution | 0.1 ppm (0 to +500 ppm) |
Reaction time t₉₀ | 40 s |
Note | H₂ only as an indicator |
Flue gas NO | |
Measuring range | 0 to +4000 ppm |
Accuracy |
±5 % of mv (+100 to +1999 ppm) ±10 % of mv (+2000 to +4000 ppm) ±5 ppm (0 to +99 ppm) |
Resolution | 1 ppm (0 to +4000 ppm) |
Reaction time t₉₀ | 30 s |
Flue gas Nolow | |
Measuring range | 0 to +300 ppm |
Accuracy |
±5 % of mv (+40 to +300 ppm) ±2 ppm (0 to +39.9 ppm) |
Resolution | ±0.1 ppm (0 to +300 ppm) |
Reaction time t₉₀ | 30 s |
Flue gas NO₂ | |
Measuring range | 0 to +500 ppm |
Accuracy |
±5 % of mv (+100 to +500 ppm) ±5 ppm (0 to +99.9 ppm) |
Resolution | 0.1 ppm (0 to +500 ppm) |
Reaction time t₉₀ | 40 s |
Flue gas SO₂ | |
Measuring range | 0 to +5000 ppm |
Accuracy |
±5 % of mv (+100 to +2000 ppm) ±10 % of mv (+2001 to +5000 ppm) ±5 ppm (0 to +99 ppm) |
Resolution | 1 ppm (0 to +5000 ppm) |
Reaction time t₉₀ | 30 s |
Flue gas degree of effectivity, Eta (calculated) | |
Measuring range | 0 to +120 % |
Resolution | 0.1 % (0 to +120 %) |
Flue gas loss (calculated) | |
Measuring range | 0 to +99.9 % |
Resolution | 0.1 % (0 to +99.9 %) |
Flue gas dewpoint (calculated) | |
Measuring range | 0 to +99.9 °Ctd |
Resolution | 0.1 °Ctd (0 to +99.9 °Ctd) |
Flue gas CO₂ calculation (calculated from O₂) | |
Measuring range | 0 to CO₂ max |
Accuracy | calculated from O₂ ±0.2 Vol.% |
Resolution | 0.01 Vol.% |
Flue gas H₂S | |
Measuring range | 0 to +300 ppm |
Accuracy |
±5 % of mv (+40 to +300 ppm) ±2 ppm (0 to +39.9 ppm) |
Resolution | 0.1 ppm (0 to +300 ppm) |
Reaction time t₉₀ | 35 s |
Flue Gas CO2 - NDIR | |
Measuring range | 0 to +50 Vol.% |
Accuracy |
±0.3 Vol.% + 1 % of mv (0 to 25 Vol.%) ±0.5 Vol.% + 1.5 % of mv (>25 to 50 Vol.%) |
Resolution |
0.01 Vol.% (0 to 25 Vol.%) 0.1 Vol.% (> 25 Vol.%) |
Reaction time t₉₀ | 10 s |
Velocity / Volume flow | |
Measuring range | 0 to +40 m/s |
Resolution | 0.1 m/s (0 to +40 m/s) |
Methane (CH₄) | |
Measuring range | 100 to 40000 ppm |
Accuracy |
< 400 ppm (100 to 4000 ppm) < 10 % of mv (> 4000 ppm) |
Resolution | 10 ppm |
Min. O₂ requirement in flue gas | 2 % + (2 x mV methane) |
Reaction time t₉₀ | < 40 s |
Response factor | 1 |
Note | Lower explosion limit (LEL) must be adhered to. The HC sensor is adjusted to methane ex-works. It can be adjusted to a different gas (propane or butane) by the user. |
Propane (C₃H₈) | |
Measuring range | 100 to 21000 ppm |
Accuracy |
< 400 ppm (100 to 4000 ppm) < 10 % of mv (> 4000 ppm) |
Resolution | 10 ppm |
Min. O₂ requirement in flue gas | 2 % + (5 x mV propane) |
Reaction time t₉₀ | < 40 s |
Response factor | 1.5 |
Note | Lower explosion limit (LEL) must be adhered to. The HC sensor is adjusted to methane ex-works. It can be adjusted to a different gas (propane or butane) by the user. |
Butane (C₄H₁₀) | |
Measuring range | 100 to 18000 ppm |
Accuracy |
< 400 ppm (100 to 4000 ppm) < 10 % of mv (> 4000 ppm) |
Resolution | 10 ppm |
Min. O₂ requirement in flue gas | 2 % + (6.5 x mV butane) |
Reaction time t₉₀ | < 40 s |
Response factor | 2 |
Note | Lower explosion limit (LEL) must be adhered to. The HC sensor is adjusted to methane ex-works. It can be adjusted to a different gas (propane or butane) by the user. |
General Technical Data | |
Weight | 4800 g |
Dimensions | 330 x 128 x 438 mm |
Operating temperature | -5 to +45 °C |
Product-/housing material | ABS |
Protection class | IP40 |
Connectable probes | 1 x combustion air temperature probe; 1 x flue gas probe; 1 x temperature probe; 1 x differential pressure |
Product colour | Black |
Battery type | lithium batteries |
Battery life | 5 h |
Power supply | AC mains unit 100V to 240V (50 to 60 Hz) |
DC electric tension input | 11V to 40V |
Pump flow | 1 l/min. with through-flow monitoring |
Hose length | 16.2 m (corresponds to 5 probe hose extensions) |
Max. pos. press./flue gas | 50 mbar |
Max. neg. press./flue gas | -300 mbar |
Max. dust load | 20 g/m³ dust in flue gas |
Dewpoint calculation | 0 °Ctd; 99 °Ctd |
Max. humidity load | 70 °C dewpoint temperature |
Trigger input | Voltage 5 to 12 Volt (rising or trailing edge) pulse width > 1 sec load: 5 V/max, 5 mA, 12 V/max. 40 mA |
Maximum memory | 250,000 readings |
Interface | data bus; Bluetooth®; USB; IR/IRDA interface; Mains connection; trigger input; Differential Pressure; probe input/ probe inputs; DC-voltage input; dilution gas inlet for measurement range extension |
Storage temperature | -20 to +50 °C |
Weight | 440 g |
Dimensions | 88 x 38 x 220 mm |
Operating temperature | -5 to +45 °C |
Product-/housing material | TPE PC |
Protection class | IP40 |
Product colour | Black |
Battery type | Lithium-Ion rechargeable battery pack, 2600 mAh, 3.7 V |
Battery life | 5 h (without wireless connection) |
Display type | graphic Display |
Display size | 240 x 320 pixels |
Display function | Colour graphic display |
Maximum memory | 2 MB (250,000 meas. values) |
Interface | Bluetooth®; IR/IRDA interface; USB 2.0; data bus; Mains connection |
Storage temperature | -20 to +50 °C |