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    testo 350 - Analysis Box for exhaust gas analysis systems

    0632 3510
  1. Supports up to six configurable gas sensors, allowing users to customise and easily replace sensors directly on-site.
  2. Extended Measurement Range: Handles higher gas concentrations effortlessly, enabling continuous, accurate readings without limitations
  3. Easy-to-change gas sensors and easy access to wearing parts
  4. Sealed housing with built-in impact protection for use in harsh conditions
  5. Easy operation of the analyser unit via Control Unit or easyEmission software (sold separately)
  6. Detachable display to operate remotely via Bluetooth or data bus cable
    7. The testo 350 is a rugged, easy-to-use exhaust gas analyser designed to meet the highest demands when it comes to carrying out precise industrial emission measurements and providing proper data administration. The Analysis Box can be operated with up to 6 gas sensors, 5 of which are optional. This allows you to select freely from sensors for CO, NO, NO2, SO2, H2S, CxHy and CO2. (MCERTS certified)
     
    The testo 350 is a robust, high-performance tool designed for professional exhaust gas and industrial emission measurements across a wide range of applications. Engineered to withstand challenging conditions, it is also ideal for compiling complex data with ease.

    The testo 350 is made up of two separate units

    1, Control Unit (sold separately)
    • The testo 350 Control Unit simplifies emission measurements with a user-friendly graphic display and four distinct application modes: burner, gas turbine, motors, and user-defined settings.
    • Guided on-screen instructions streamline setup and reduce start time.
    • The Control Unit can also remotely manage the Analysis Box, making it especially useful for larger systems where access to the exhaust pipe or measurement site is limited.
    2. Analysis Box
    • The testo 350 Analysis Box houses the sensors and electronics needed for precise emission measurements. It comes with a standard O₂ gas sensor and can accommodate up to six sensors, including options for CO, CO₂, NO, NO₂, SO₂, H₂S, and CxHy.
    • Its automatic extended measurement range enables reliable readings even with high gas concentrations, activating a dilution function to handle unexpected spikes.
    The increased measuring range allows you to carry out unlimited measurements even when gas concentrations are high. The increased measuring range (thinning) is automatically activated when gas concentrations are unexpectedly high. The measuring range of a selected sensor can be increased by a certain factor. An opening on the underside of the analyzer gives you access to all the relevant service and wearing parts, i.e. pumps and filters, which can easily be cleaned or replaced.  The testo 350 also has numerous diagnosis functions with easy-to-understand readings and information. The exhaust gas analyzer constantly displays the current reading.
    The Analysis Box can be controlled by the Control Unit. It can, however, also be operated directly via USB, Bluetooth® 2.0 or CANCase from a PC or notebook. After the Analysis Box has been programmed, it can carry out measurements independently and save the results. It can also transfer the data directly to the Control Unit.

    Perfect for Industrial Emission Applications

    The testo 350 is specifically tailored for industrial field applications, including:
    • Emission measurements on industrial motors
    • Emission measurements on burners
    • Emission measurements on gas turbines
    • Emission measurements on thermo processes
    Discover more about these applications in the “Applications” tab for a comprehensive guide to maximising the testo 350’s capabilities.

    testo 350 analyzer unit, equipped with O2, including differential pressure sensor, temperature probe input type K NiCr-Ni and type S, Pt10Rh-Pt, Testo data bus connection, rechargeable battery, integrated combustion air probe (NTC), trigger input, measurement data memory, USB interface, carrying strap kit and calibration protocol.

    Please note: The testo 350 analyzer unit can only be used in combination with the testo 350 Control Unit or the "easyEmission" software. These items are available separately.

    Temperature - NTC

    Measuring range
    -20 to +50 °C
    Accuracy
    ±0.2 °C (-10 to +50 °C)
    Resolution
    0.1 °C (-20 to +50 °C)
    Ambient temperature probe

    Temperature - TC Type K (NiCr-Ni)

    Measuring range
    -200 to +1370 °C
    Accuracy
    ±1 °C (-200 to -100.1 °C)
    ±1 °C (200.1 to +1370 °C)
    ±0.4 °C (-100 to +200 °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)

    Flue gas probes

  7. Flue gas probes
    0600-9766-modular-flue-gas-probe
    Modular flue gas probe, 335 mm probe shaft length, Ø 8 mm, Tmax 500°C
      :
      0600 9766
      £ 360.00 £ 432.00
      1
    • Flue gas probes
      Modular flue gas probe, 700 mm, 500 °C
      Modular flue gas probe, 700 mm probe shaft length, Ø 8 mm, Tmax 500°C
        :
        0600 9767
        £ 428.00 £ 513.60
        1
      • Flue gas probes
        Modular flue gas probe
        Modular flue gas probe, 335 mm probe shaft length, Ø 8 mm, Tmax 1000°C
          :
          0600 8764
          £ 486.00 £ 583.20
          1
        • Flue gas probes
          Flue gas probe modular 700 mm 500 °C 0600 876
          Modular flue gas probe, 700 mm probe shaft length, Ø 8 mm, Tmax 1000°C
            :
            0600 8765
            £ 672.00 £ 806.40
            1
          • Flue gas probes
            Modular flue gas probe
            Modular flue gas probe with pre-filter, Ø 14 mm, 335 mm probe shaft length, Tmax 1000°C
              :
              0600 8766
              £ 835.00 £ 1,002.00
              1
            • Flue gas probes
              Flue gas probe modular 335 mm 1000 °C prefilter 0600 8767
              Modular flue gas probe with pre-filter, Ø 14 mm, 700 mm probe shaft length, Tmax 1000°C
                :
                0600 8767
                £ 916.00 £ 1,099.20
                1
              • Flue gas probes
                Flue gas probe for industrial engines
                Flue gas probe for industrial engines, length 335 mm, Tmax +1000°C
                  :
                  0600 7555
                  £ 607.00 £ 728.40
                  1
                • Flue gas probes
                  Flue gas probe with preliminary filter
                  Flue gas probe with pre-filter for industrial engines, length 335 mm, Tmax +1000°C
                    :
                    0600 7556
                    £ 645.00 £ 774.00
                    1
                  • Flue gas probes
                    0600-7610
                    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
                      £ 1,274.00 £ 1,528.80
                      1

                      • Pitot tubes

                    • Pitot tubes
                      Staurohr
                      Stainless steel Pitot tube, length 350 mm, Ø 7 mm - for measuring flow velocity
                        :
                        0635 2145
                        £ 145.00 £ 174.00
                        1
                      • Pitot tubes
                        Staurohr
                        Stainless steel Pitot tube, length 500 mm, Ø 7 mm - for measuring flow velocity
                          :
                          0635 2045
                          £ 155.00 £ 186.00
                          1
                        • Pitot tubes
                          Staurohr
                          Stainless steel Pitot tube, length 1000 mm, Ø 7 mm - for measuring flow velocity
                            :
                            0635 2345
                            £ 425.00 £ 510.00
                            1

                            • Temperature probes

                          • Temperature probes
                            Combustion air temperatur probe
                            Combustion air temperature probe, immersion depth 60 mm
                              :
                              0600 9797
                              £ 107.00 £ 128.40
                              1
                            • Temperature probes
                              Combustion air temperature probe
                              Combustion air temperature probe with an immersion depth of 190 mm – measuring range: 0 to +100 °C
                                :
                                0600 9787
                                £ 107.00 £ 128.40
                                1

                                • Service measurement on gas turbines

                                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. After commissioning and maintenance work, the system's emission values are checked for adherence to limit values and also the manufacturer's specifications, and documented if necessary.

                                Due to the low NO concentrations, emission measurements during inspection and adjustment work on LowNOx gas turbines need to be extremely accurate. The portable flue gas analyzer testo 350 featuring the combination of NO2 sensor and special NOlow sensor with a resolution of 0.1 ppm enables precisely these requirements to be met. In addition, the integrated gas preparation and special flue gas probe with patented special hose provide protection against NO2 absorption and allow measured values to be compared, irrespective of date and ambient conditions.

                                testo 350

                                Service measurement on industrial engines

                                The flue (exhaust) gas analyzer testo 350 is an important tool for adjusting a gas or diesel engine to optimum effect. The testo 350 is used, for example, during commissioning, at regular maintenance intervals, or for troubleshooting unstable operational processes. Exhaust gas measurement is necessary to adjust the engine to optimum operating parameters while complying with the limit value regulations in force - this often entails measurements being taken over several hours. In particular, the high and fluctuating proportion of NO2 in the engine exhaust gas makes the separate measurement of NO and NO2 necessary to provide a highly accurate indication of the real NOx value of the engine. The integrated gas preparation and the special exhaust gas probe for industrial engines with patented special hose provide protection against NO2 and SO2 absorption and allow measured values to be compared, irrespective of date and ambient conditions.

                                testo 350

                                Service measurement on after treatment systems

                                Restrictive limit values necessitate the use of a portable flue/exhaust gas analyzer to reliably determine the exhaust gas parameters in front of and after the after treatment system. In addition to the regular inspections for mechanical damage and contamination, the flue gas measurement provides information about the efficiency and functional reliability of a system. The bus function of the flue gas analyzer testo 350 allows flue/exhaust gas to be measured simultaneously in front of and after an exhaust after treatment system; this enables fast and easy assessment of the system. Any system modifications can be obtained from the measurement protocol.

                                testo 350

                                Analysis of the gas atmosphere (thermal processes)

                                The flue gas analysis is used for thermal process monitoring in process combustion systems, such as in continuous furnaces for the glass, ceramics and construction material sector, or in steel melting and hardening furnaces, etc. In processes of this kind, substances may pass from the product being processed into the flue gas, increasing the usual emissions produced by the combustion system;

                                vice versa, pollutants may pass from the gas and become part of the product being processed. The flue gas analyzer testo 350 can be used to pursue two main goals: monitoring of the process-related gas atmosphere to ensure the optimum quality of the processed products. The gas analysis provides information for process-related measures, such as the design of the furnace interior, flame control, fired product and furnace temperature, or the combustion air supply. At the same time, the gas analysis contributes to optimum operation of the system in terms of operating costs and safety.

                                testo 350

                                Service measurement on industrial burners

                                For whichever purpose combustion systems are used, whether for heating, generating electrical power, steam or hot water, for the production or surface treatment of certain materials, or to incinerate waste and scrap materials, the best possible way of managing combustion and incineration definitely includes the right knowledge about the compositions of fuels and combustion air, and their relationship to one another. Even how they are combined is crucial. Mobile measuring technology allows all relevant gases to be analyzed and optimum combustion processes therefore to be achieved.

                                The purpose of using a portable flue gas analyzer is to test the environmentally sound operation of combustion systems and optimum utilisation of the system. This means that a combustion system can be adjusted to its optimum working range to enable it to meet or come within stipulated emission limit values, while achieving a maximum level of efficiency in terms of combustion. The accurate flue gas analyzer testo 350, suited to tough practical conditions, is not only used for commissioning purposes, but also for repeat gas analyses during operation.

                                testo 350

                                Official emissions measurement (compliance testing)

                                In most countries, operation of all types of industrial plants (e.g. large power stations, steelworks. cement works, glass works, and chemical plants), and local authority facilities, right through to small production sites is subject to strict regulations governing exhaust gas emissions into the atmosphere. Suitable measures are be taken to ensure and regularly verify that the components defined as pollutants do not exceed certain limit values in the flue gas.

                                The flue gas analyzer testo 350 can be used to carry out a preliminary analysis before an official emissions reading, or, depending on the country and directive, the actual official compliance testing.

                                testo 350

                                • Instruction manual easyEmission(pdf, 2.36 MB)
                                • Firmware testo 350 - Analyzer Box(v1.29, 1.75 MB)
                                  If the firmware update does not start under Windows 8.1 or Windows 10, a new bootloader must be installed on the measuring device once.
                                  A description and all necessary files can be found under the search term: Update-Kit / Bootloader
                                • testo 350 Firmware Update Guide(pdf, 586.1 kB)
                                • Update-Kit / Bootloader(V1.22, 1.24 MB)
                                  (testo 330 LL | testo 330i | testo 350 Control Unit + Analysis Box | testo 320)
                                  If the firmware update does not start under Windows 8.1 or Windows 10, a new bootloader must be installed on the measuring device once.