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Testo 320B - Flue Gas Analyser (Standard Kit)
Brand: Testo
The Testo 320 basic 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.
Standard kit features include:
- 4,000ppm CO sensor with automatic pump shut off to help prevent saturation.
- 10 user selectable fuels
- Rechargeable Li-ion battery
- Tightness and let-by pressure test routines included in menu (requires pressure connection adaptor)
- Flow and return temperature measurement (using additional accessory probes)
- Soft carry case with shoulder strapx
- Independently tested according to EN 50379 Parts 1-3
Specifications
Brand
Delivery Scope
- Testo 320B Flue Gas Analyser, rechargeable battery and calibration protocol, Flue Gas Probe (180 mm x 6 mm diameter), Soft carry case with shoulder strap, AC/USB power supply
Weight
- 573 g
Dimensions
- 240 x 85 x 65 mm
Operating Temperature
- -5° C to +45° C
Protection Class
- IP40
Display Size
- 240 x 320 pixels
Display Function
- Colour Graphic Display
Power Supply
- Battery: 3.7 V / 2,400 mAh, Mains unit: 5 V / 1 A
Memory
- 20 measurement Values
Storage Temperature
- -20° C to +50° C
Flue Gas O₂
- Measuring Range: 0 to 21 Vol. %
- Accuracy: ± 0.2 Vol. %
- Resolution: 0.1 Vol. %
- Reaction Time t₉₀: < 20 s
Differential Pressure Flue Gas Draught - Piezoresistive
- Measuring Range: -9.99 to +40.0 hPa
- Accuracy: ± 0.02 hPa or ± 5 % of mv (-0.50 to +0.60 hPa) | ± 0.03 hPa (+0.61 to +3.00 hPa) | ± 1.5 % of mv (+3.01 to +40.00 hPa)
- Resolution: 0.01 hPa
Temperature
- Measuring Range: -40.0° C to +1200.0° C
- Accuracy: ± 0.50° C (0° C to 100.0° C) | ± 0.50 % of mv (Remaining Range)
- Resolution: 0.1° C (-40° C to +999.9° C) | 1° C (> +1000° 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 CO₂ Calculation (Calculated from O₂)
- Measuring Range: 0 to CO₂ maximum (Display range)
- Accuracy: ± 0.2 Vol. %
- Resolution: 0.1 Vol. %
- Reaction Time t₉₀: 40 s
Pressure Measurement
- Measuring Range: 0 to +300 hPa
- Accuracy: ± 0.5 hPa (0.0 to 50.0 hPa) | ± 1 % of mv (50.1 to 100.0 hPa) | ± 1.5 % of mv (Remaining Range)
- Resolution: 0.1 hPa
Flue Gas CO (Without H₂-Compensation)
- Measuring Range: 0 to 4000 ppm
- Accuracy: ± 20 ppm (0 to 400 ppm) | ± 5 % of mv (401 to 2000 ppm) | ± 10 % of mv (2001 to 4000 ppm)
- Resolution: 1 ppm
- Reaction Time t₉₀: < 60 s
Ambient CO
- Measuring Range: 0 to 4000 ppm
- Accuracy: ± 20 ppm (0 to 400 ppm) | ± 5 % of mv (401 to 2000 ppm) | ± 10 % of mv (2001 to 4000 ppm)
- Resolution: 1 ppm
- Measuring Rate: < 60 s
- 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.
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
