Automatic Precipitation Sampler DRA-12

Description

The DIGITEL DRA-12 is a microprocessor controlled automatic sampler for the sampling of wet depositions (rain, snow) for later assessment and analysis in the laboratory..
The device is mounted in an air-conditioned compact field housing. The collection funnel, which is coated with Teflon, has a surface of 500 cm².(d = 252 mm). When it’s dry, the collection funnel is closed by a lid. This avoids contamination of the funnel with leaves, dust etc. A rain sensor opens the lid, the precipitation accumulates in the funnel and flows via a short vertical Teflon pipeline directly into the current bottle. Snow and ice rain are defrosted by an integrated heating, which also prevents the freezing of the funnel lid. The turnable bottle plate contains 12 sampling bottles with 1l each or 32 sampling bottles with 250ml each. The exchange of the bottle takes place automatically, time and/or event controlled. When a bottle is full, it is automatically exchanged by a new one.
The air-conditioned bottle chamber ensures the storage of of the precipitation samples at a constant temperature.
All events (precipitation begin/end, bottle exchange etc.) are logged. The wet-only sampler is completely remote controlled via a RS232C interface.