The testo 320 features all the essential functions for carrying out flue gas analysis on domestic heating systems, including flue draught, pressure measurements, and differential temperature measurement. The flue gas analyser is easy to use with its full colour graphic display featuring a user-friendly menu guidance. The analyser measures both O2 and CO (4,000ppm sensor fitted as standard) and can also display calculated parameters such as combustion ratio, CO2, etc. A range of optional probes also allow measurement of ambient CO and gas escape detection. The device can store up to 500 measurement reports to internal memory, and also features Bluetooth communication with Testo's free Combustion app is also possible (App only for Android devices)
testo 320 - Flue Gas Analyser (Advanced Set)
Order-Nr. 0563 3220 81
Advanced kit features include :
- 4,000ppm CO sensor with automatic pump shut off to help prevent saturation.
- 10 user selectable fuels
- Rechargable Li-ion battery
- Adaptors and accesories for pressure measurement, and differential temperature clamp probes supplied
- Testo IR printer
- Ambient CO and gas escape detection (using additional accessory probes)
- Soft carry case with shoulder strap
- Independently tested according to EN 50379 Parts 1-3
Order Number: 0632 3331
Order Number: 0632 3330
Standard gas sampling probes
Order Number: 0600 9740
Order Number: 0554 1208
Order Number: 0554 1203
Order Number: 0554 0549
Order Number: 0516 3300
Order Number: 0554 1105
Ambient CO measurement in the heated environment
Carbon monoxide (CO) is a colourless, odourless and taste-free gas, but also poisonous. It is produced during the incomplete combustion of substances containing carbon (oil, gas, and solid fuels, etc.). If CO manages to get into the bloodstream through the lungs, it combines with haemoglobin thus preventing oxygen from being transported in the blood; this in turn will result in death through suffocation. This is why it is necessary to regularly check CO emissions at the combustion points of heating systems and the surroundings.
Measuring the flue gas parameters of the burner (CO, O2, and temperature, etc.)
The flue gas measurement for a heating system helps to establish the pollutants released with the flue gas (e.g. carbon monoxide CO or carbon dioxide CO2) and the heating energy lost with the warm flue gas. In some countries, flue gas measurement is a legal requirement. It primarily has two objectives:
- Ensuring the atmosphere is contaminated as little as possible by pollutants; and
- energy is used as efficiently as possible.
Stipulated pollutant quantities per flue gas volume and energy losses must never be exceeded. Measurement in terms of results required by law takes place during standard operation (every performance primarily using the appliance). Using a Lambda probe (single hole or multi-hole probe), the measurement is taken at the centre of flow in the connecting pipe (in the centre of the pipe cross-section, not at the edge) between the boiler and chimney/flue. The measured values are recorded by the flue gas analyzer and can be logged either for print out or transfer to a PC at a later stage.
Measurement is taken by the installer at commissioning, and if necessary four weeks later by the flue gas inspector/chimney sweep, and then at regular intervals by the authorised service engineer.
Measuring pressure on burners (nozzle pressure, gas flow pressure, etc.)
Standard readings taken during services of domestic heating systems include checking the gas pressure on the burners. This involves measuring the gas flow pressure and gas resting pressure. The flow pressure, also called supplied pressure, refers to the gas pressure of the flowing gas and resting pressure of the static gas. If the flow pressure for gas boilers is slightly outside the 18 to 25 mbar range, adjustments must not be made and the boiler must not be put into operation. If put into operation nonetheless, the burner will not be able to function properly, and explosions will occur when setting the flame and ultimately malfunctions; the burner will therefore fail and the heating system will shut down.
Measuring temperatures on radiators
When measuring the temperature on radiators, the flow and return temperatures are recorded in particular and assessed by the tradesman. The flow temperature is defined as the temperature of a thermal transfer medium (e.g. water) that the system is supplied with. The temperature of the medium flowing out of the system is accordingly called the return temperature. To prevent losses within the heat distribution system and achieve a better level of efficiency in modern, heating technology, spot recording of flow and return temperatures is necessary at certain radiator pipes or screw fittings. Implementation of relevant measures ultimately leads to hydraulic adjustment on the basis of knowledge about the flow and return temperatures. This defines a procedure with which every radiator or heating circuit of a flat radiator within a heating system is supplied at a set flow temperature with the precise amount of heat needed to achieve the ambient temperature required for the individual rooms. Flawed operating conditions will result in considerable excess consumption of electricity and heating energy.
Testo ZIV driver ZIV 2000 for testo 320 and testo 330 (ZIP, 8.8 MB) Testo ZIV driver in the 2000 version. The Testo ZIV driver is used to connect the testo 320 and testo 330 measuring instruments to an application program (sweeping district administration program) according to the interface Version 2.0 defined by the Zentralverband des Schornsteinfegerhandwerks (Central Association of Chimney Sweeps, ZIV). Please check with the manufacturer of your application program as to whether this interface is supported. If Microsoft .NET Framework 4.0 has not been installed on the computer, it must be downloaded from the Microsoft website and installed on the system.
Testo ZIV driver for testo 300, testo 320 and testo 330 (v2.2 SP3, EXE, 64.193 KB) The Testo ZIV driver is used to connect the testo 300, testo 320 and testo 330 measuring instruments to an application program (sweeping district administration program) according to the interface defined by the Zentralverband des Schornsteinfegerhandwerks (ZIV, Central Association of Chimney Sweeps) in version 1.0 of 01. August 2012 as well as in version 2.0 of 13. February 2017. Please check with the manufacturer of your application program as to whether this interface is supported.
Software EasyHeat for testo 300, 312-4, 320, 324, 330, 380 (v2.12 SP3, EXE, 101.938 KB) If you already have the testo EasyHeat software installed, your version will be updated. The update is possible with every version of the testo EasyHeat. This version can also be used as a demo version for costumers who don't have installed the testo easyheat software at the moment. It will void after 30-days, but can be activated with a serial code at every time.