Gas analyzer GASANALYZER

formaldehydelaboratoryconcentration

The precise and reliable analysis of the formaldehyde emission from wood based panels - in compliance with the standard EN ISO 12460-3 - is possible with the gas analysis unit GreCon GASANALYZER. GASANALYZER is characterised by its compact design, the low energy consumption and the intuitive and safe operation via a large colour touch screen. The two measuring chambers made of polished stainless steel are controlled separately and can be used independently. An airflow of 60 l/h with a temperature of 60 °C channels the formaldehyde emitted from the test specimen out of the measuring chamber into gas wash bottles. Before introducing the air into the measuring chambers, it is cleaned with silica gel and filtered to achieve a clean air flow. According to standard the air flow is fed to four pairs of wash bottles for a period of four hours, i.e. formaldehyde containing air is blown through each pair of wash bottles for one hour. After the forth hour, the air flow is stopped automatically. The sequence to open and close the valves is regulated by the PLC. As measuring temperature and valve configuration can be adapted, a flexible reaction on future changes of the standard is possible. The lines of the test air as well as the valve blocks are heated to avoid any condensation and resulting measuring errors. An automatic leak test issues a warning if a leakage occurs. The relevant test parameters - as required in EN ISO 12460-3 - can be exported via a USB interface. Furthermore, the sample identification as well as date and time of the test are saved in the history.