This manual describes the use of the testo 300/testo 300 LL NEXT LEVEL flue gas analyzer, including product overview, safety instructions, product specifications, etc.
This manual provides detailed instructions for operating and maintaining the Testo 300/testo 300 LL NEXT LEVEL flue gas analyzer. It covers safety precautions, product setup, measurement procedures, sensor calibration, and maintenance tasks. The device is designed for professional flue gas analysis in combustion systems and includes features for draught measurement, CO and O2 monitoring, and compliance testing. It is intended for indoor use only and must not be used as a safety device.
The manual also includes guidance on connecting Smart Probes and using the Testo Smart App, as well as technical specifications for temperature, pressure, and gas measurements. Safety warnings are emphasized, particularly regarding pacemaker users and magnetic interference. Maintenance sections detail sensor replacement, probe cleaning, and condensate handling.
| Temperature measuring instrument | -40 to +1200 °C |
|---|---|
| Draught measurement | -9.99 to +40 hPa |
| Pressure measurement | -100 to 200 hPa |
| O2 measurement | 0 to 21 vol.% |
| CO measurement (standard) | 0 to 4,000 ppm |
| CO measurement (H2-compensated) | 0 to 8,000 ppm |
| NO measurement | 0 to 3,000 ppm |
| Operating temperature | -5 to +45°C |
| Storage temperature | -20 to +50°C |
The operating temperature range is -5 to +45°C.
No, it is not intended to be used as a safety (alarm) device.
Sensors have a service life of up to 72 months depending on load.