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PreSens' Featured System for Online Process Monitoring in Shake Flasks
The SFR Shake Flask Reader monitors pH, oxygen and OUR in up to 9 Erlenmeyer flasks, cultivation tubes, or T-flasks simultaneously. It fits in nearly all standard shakers. Measurement data is transferred wirelessly via Bluetooth to your PC / notebook. The corresponding ready-to-use vessels contain pre-calibrated sensor spots. The system monitors non-invasively through the transparent bottom of the container. Different types and sizes of flasks and tubes are available. Plastic, disposable flasks contain pre-calibrated oxygen and pH sensors, while re-usable glass flasks are equipped with autoclavable oxygen sensors.
These clamps are used with the SFR Shake Flask Reader and the SFR vario. They ensure that the sensors integrated in the SFS Sensor Flasks are aligned correctly with the reader optics. There are two additional holes in the base plate for the two knobs on the plastic SFS bottom, so the flask will snap into place. Furthermore, the clamp has a recess for the biomass optics of the SFR vario and a sideways arm that holds glass flasks with integrated sensors in the correct position above the optics.
These single-use shake flasks made of polycarbonate have an oxygen and a pH sensor integrated at the bottom. The flasks are available in sizes from 125 mL to 5,000 mL volumes, with or without baffles. The sensors inside are irradiated and pre-calibrated, so the flasks are ready-to-use. The SFS can be read out with the SFR Shake Flask Reader or the SFR vario, for simultaneous online monitoring of oxygen, pH, OUR and (in case of the SFR vario) biomass. They are used with special clamps that align the integrated sensors with the reader optics.