PreSens' Featured pH Measurement System for Perfusion Monitoring

Due to its small outer dimensions pH-1 SMA HP5 can be set up almost anywhere. It is compatible with non-invasive sensors, dipping probes and flow-through cells of type HP5 & HP8 (measurement range pH 5.5 - 8.5). pH-1 SMA HP5 has temperature compensation, so even in environments with changing temperatures precise pH measurements can be performed. The optical pH sensor can directly be integrated in bioreactors and cultivation vessels, and are read out with pH-1 SMA HP5 non-invasively from the outside. It is not necessary to open the vessel or take samples for measurements, so there is no risk of contamination. This USB-powered pH meter is operated with the PreSens Measurement Studio 2 software, which enables simultaneous control of several PreSens pH, O₂ and CO₂ devices, so measurement networks can be set up. With numerous features, the software makes the pH-1 SMA HP5 applicable in almost any application where precise pH measurements are needed.

A polymer optical fiber (POF) is needed to transfer excitation light to the sensor and the sensor response back to the meter. We offer different versions for different meters depending on their optical connector type. A POF enables non-invasive and non-destructive measurements to be made from the outside through the wall of a transparent or slightly colored container. The POF with SMA connector is compatible with meters of the Fibox, OXY-SMA, OXY mini and pH-SMA series, as well as the CO2-SMA series. The POF with ST connector is compatible with meters of the Microx, OXY-ST and CO2-ST series. Different standard lengths are offered, e. g. 2.5 m, and fibers with connectors on one or both ends are available, depending on your adapter or sensor application.

A miniaturized optical pH sensor is attached to a color coded stick, which can be attached to flow-through cells of different size and shape, according to requirements. A polymer optical fiber connects the sensor inside the flow-through cell to the pH meter. The single-use T-cell of the FTC-SU-HP5-S is made of polycarbonate and all parts come beta-irradiated.