The new Biotool Swiss PetriSphere Gas-System is consisting of a microprocessor-based controller connected with a diaphragm vacuum pump and a nitrogen gas reservoir. The necessary vacuum, the gas exchange pressure and the number of cycles can be programmed at the keypad of the controller. By simply pressing the start button the process starts and runs fully automatic.
The container will be evacuated to the pressure adjusted, vented with the reaction gas connected to the system and the pre-programmed number of cycles is processed automatically. No additional chemicals are needed to create an anaerobic atmosphere.
The PetriSphere system is cost-saving and easy to use. Special click-connectors provide convenient, safe and time-saving operation.
Anaerobic environment: Few structures of organisms can survive exclusively in the deficiency of oxygen (an aerobically). For Examples anaerobic organisms are found in microbes of the genus Clostridium, in parasitic protozoan’s from the gastrointestinal tract of humans and additional vertebrates, and in ciliates connected with sulfide-containing sediments.
Organisms able of switching between aerobic and anaerobic existence are found in forms of fungi recognized as yeasts. The ability of an organism to function both in aerobic and anaerobic environment amplify the variety of sites in which it is able to exist and transmit some advantages over organisms with fewer adaptive prospective.
Features and Benefits
Reliable – Reproducible, controlled conditions Fast micro-aerophilic and anaerobic conditions Improves recovery of oxygen – sensitive organisms Flexible – Optimal conditions can be created for each culture & each separate jar Extend capacity simply by adding more jars Eliminates human errors and guesswork Increases lab productivity by applying automation Innovative features and design Ease of use and programming Reliable and robust design for years of operation Knowledgeable application support programs
Technical data

Ultimate pressure (mbar)Pumping speed (m³/h at 50/ 60 Hz)Dimensions (W/D/H)WeightOrder-No.

‹20,8/0,99.3″x5.7″x13.6″ (235/145/345 mm.)15.5 Lbs (7 kg.)112011