It retains all internal pressure without contacting the outer casement, and a thermal air gap is created between the liner and outer casement. This reduces the temperature of the outer casement and minimizes the risk of burns when handling completed samples. Vessel seal caps are a molded, one-piece design that eliminates the potential for component separation at high pressures. A vent port is located perpendicular to the seal cap, safely directing any potential acid vapors to a central collection reservoir. Because of the sensor design, this system does not require transducer line backflushing or valves to be turned after each digestion.
Vessels have fewer fittings and potential failure points than other industry designs.
Samples may be removed from the microwave cavity at the end of the run to improve throughput. A quick-connect valve is used to remove pressure from the pressure transducer. Pressure control features include 10 stages of operator-selected pressure control, with system programming capabilities from atmospheric to 200 psi moderate pressure vessels or upto 600 psi for high pressure vessels. The system automatically adjusts to control the vessel pressure programmed. To develop methods for routine digestions, operational software can acquire pressure and temperature interface data for post-run viewing and verification.