The Gas Sampling System (GSS) is an active sampling system based on pumped sampling of air onto one or two adsorbent tubes, which are then analyzed by thermal desorption combined with GC/MS. The two flow channels may be used as independent, for Distributed Volume Pair samples or as identical channels for critical and unique samples.
The GSS is equipped with mass flow controllers as well as mass flow sensors with Flow Tamer™ Technology. The GERSTEL GSS is compatible with all standard TD-tubes used for thermal desorption. All collection parameters are independently recorded on both channels and may be sent to an external data device. Sampling may be started using a pre-programmed time schedule or on-demand from the built-in touch screen.
Sampler records and stores start and stop times, sample duration, average flow rate and total collected volume for each collection event, data are retrievable via USB interface.
If you do have questions, write to Jens Glastrup