Details
• Flue gas measurement• Draught measurement• Ambient CO measurement• Pressure measurement
Model No: Testo 300 LL Part No:0633 3004 73
The testo 300 flue gas analyzer with Longlife sensors is ideal for heating engineers who carry out installation and maintenance work on heating systems several times a day. It combines decades of experience in measuring technology with contemporary smart-touch operation, robust construction and e-mailing of reports. The testo 300 enables easy measurement of flue gas, draught, pressure, ambient CO and differential temperature – you can also retrofit an NO sensor.
General technical data | |
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Weight |
(with probe) Approx. 700 g |
Dimensions |
201 x 83 x 44 mm |
Operating temperature |
-5 to +45 °C |
Display type |
LCD (Liquid Crystal Display) |
Display function |
Backlit 2-line display |
Power supply |
Battery: 1500 mAh, mains unit 5V/1A |
Storage temperature |
-20 to +50 °C |
Temperature – TC Type K (NiCr-Ni) | |
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Measuring range |
-20 to +100 °C |
Accuracy |
±1 °C |
Resolution |
0.1 °C |
Reaction time |
< 50 s |
Temperature (ambient temperature)
Temperature – TC Type J (Fe-CuNi) | |
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Measuring range |
0 to +400 °C |
Accuracy |
±1 °C (0 to +100 °C) ±1.5 % of mv (> 100 °C) |
Resolution |
0.1 °C |
Reaction time |
< 50 s |
Temperature (flue gas)
Flue gas O₂ | |
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Measuring range |
0 to 21 Vol.% |
Accuracy |
±0.2 Vol.% |
Resolution |
0.1 Vol.% |
Reaction time t₉₀ |
30 s |
Differential Pressure flue gas Draught – Piezoresistive | |
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Measuring range |
-20 to +20 hPa ±0.03 hPa (-3 to +3 hPa) |
Accuracy |
±1.5 % of mv (Remaining Range) |
Resolution |
0.01 hPa |
Flue gas degree of effectivity, Eta (calculated) | |
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Measuring range |
0 to 120 % |
Resolution |
0.1 % |
Flue gas loss (calculated) | |
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Measuring range |
0 to 99.0 % |
Resolution |
0.1 % |
Flue gas CO₂ calculation (calculated from O₂) | |
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Measuring range |
0 to CO₂ max (Display range) |
Accuracy |
±0.2 Vol.% |
Resolution |
0.1 Vol.% |
Reaction time t₉₀ |
< 40 s |
Pressure measurement | |
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Measuring range |
-40 to +40 hPa |
Accuracy |
±0.5 hPa |
Resolution |
0.1 hPa |
Flue gas CO (without H₂-compensation) | |
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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 | |
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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 |
60 s |