testo 350 - Analysis Box for exhaust gas analysis systems

Order-Nr.  0632 3510

This meter uses a sensor to start up. Click here for filter selection.
  • Increased measurement range for unlimited measurements even when gas concentrations are higher

  • Easy-to-change gas sensors and easy access to wearing parts

  • Sealed housing with built-in impact protection for use in harsh conditions

  • Easy operation of the analyzer unit via Control Unit or easyEmission software (both products available separately) 

The testo 350 is a rugged, easy-to-use exhaust gas analyzer 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.


Details

Product Description

Ideal for professional flue gas analysis and industrial emissions measurement on industrial engines, burners, gas turbines and in thermal processes: the testo 350 flue gas analyzer performs a variety of measuring and analysis tasks, impresses over the long term thanks to its heavy-duty industrial design and is also suitable for complex data acquisition.

 

The testo 350 flue gas analyzer comprises two units

  • The testo 350 Control Unit (separate product) with a clear graphic display, allows you to control emissions measurement. Operation is really easy: burner, gas turbine, engine and user-defined applications are available for selection in the menu. The Control Unit enables remote control of the analyzer unit even when there is a spatial separation of the flue gas pipe and the setting location – particularly recommended for emissions measurements on large plants.
  • The testo 350 analyzer unit is just what you need for carrying out emissions measurement, because it contains all the sensor technology and electronics. The testo 350 analyzer unit includes an O2 gas sensor as standard, but at least one additional sensor must be connected for commissioning (can be used with a maximum of 6 sensors). When connecting the optional sensors, you can choose between gas sensors for CO, CO2, NO, NO2, SO2, H2S or CxHy.

    The measuring range extension enables unrestricted measurements to be carried out, even when there are high gas concentrations. In order to protect the sensor technology, the measuring range extension (dilution) is automatically activated when there are unexpectedly high gas concentrations. The measuring range of a selected sensor can be extended by a specific factor. The service opening on the underside of the instrument allows fast access to all relevant serviceable and wearing parts, such as pumps and filters, enabling users to clean or replace these. In addition, the testo 350 has numerous instrument diagnosis functions. Instrument notifications are output in cleartext, making them easy to understand. The current status of the flue gas analyzer is constantly displayed.

     

    Using the testo 350 analyzer unit

    The analyzer unit can be operated with the Control Unit and it can also be used in direct combination with a PC/notebook and the easyEmission software (via USB, Bluetooth® 2.0 or CANCase). After programming, the analyzer unit can carry out measurements and save the results autonomously. It is also possible to display or transmit the measurement data from the analyzer unit to the Control Unit or software.

    To send the measurement report straight away, you can also use our free App which turns your Android smartphone or tablet into a display device for the analyzer unit.

Delivery Scope

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.

Technical Data

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

±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

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

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

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

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

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.

Flue gas SO₂ low

Measuring range

0 to 200 ppm

Accuracy

±2 ppm (0 to 39.9 ppm)

±5 (40 to 200 ppm)

Resolution

0.1 ppm

Reaction time t₉₀

30 s

In combination with the special SO2low gas sampling probe 0563 1251 or the industrial heated probe kit 0600 7630

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 life

5 h

Battery type

lithium batteries

DC electric tension input

11V to 40V

Power supply

AC mains unit 100V to 240V (50 to 60 Hz)

Dewpoint calculation

0 °Ctd; 99 °Ctd

Hose length

16.2 m (corresponds to 5 probe hose extensions)

Max. dust load

20 g/m³ dust in flue gas

Max. humidity load

70 °C dewpoint temperature

Max. neg. press./flue gas

-300 mbar

Max. pos. press./flue gas

50 mbar

Pump flow

1 l/min. with through-flow monitoring

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


Probes


Accessories

Accessories

O2 replacement sensor

Order Number: 0393 0000

CO (H2-compensated) retrofit sensor

Order Number: 0554 2104

NO replacement sensor

Order Number: 0393 0150

NO retrofit sensor

Order Number: 0554 2150

NOlow replacement sensor

Order Number: 0393 0152

NOlow retrofit sensor

Order Number: 0554 2152

NO2 replacement sensor

Order Number: 0393 0200

NO2 retrofit sensor

Order Number: 0554 2200

SO2 replacement sensor

Order Number: 0393 0250

SO2 retrofit sensor

Order Number: 0554 2250

SO2 low replacement sensor

Order Number: 0393 0251

SO2 low retrofit sensor

Order Number: 0554 2251

CO2 retrofit sensor (IR)

Order Number: 0554 2400

CxHy replacement sensor

Order Number: 0393 0300

CxHy retrofit sensor

Order Number: 0554 2300

H2S replacement sensor

Order Number: 0393 0350

H2S retrofit sensor

Order Number: 0554 2350

NO replacement filter for sensor

Order Number: 0554 4150

testo easyEmission software

Order Number: 0554 3334

testo fast printer IRDA

Order Number: 0554 0549

Analog output unit kit

Order Number: 0554 3149

Transport case

Order Number: 0516 3510

Spare dirt filters (20 off)

Order Number: 0554 3381


Applications

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.

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.

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.

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.

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.

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.


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This meter uses a sensor to start up. Click here for filter selection.