PreSens' Featured dCO₂ Measurement System for Perfusion Monitoring

This small CO₂ meter fits in any measurement set-up. CO₂-1 SMA is compatible with dipping probes, flow-through cells and non-invasive CO₂ sensor spots of type CD1 (measurement range 1 - 25 % CO₂). It has temperature compensation, so even in environments with changing temperatures precise CO₂ measurements can be performed. This USB-powered CO₂ meter is operated with the PreSens Measurement Studio 2 software, which enables simultaneous control of several devices and combination with PreSens O₂ and pH meters, so measurement networks can be set up. With numerous features and additional pressure compensation, the software makes the CO₂-1 SMA applicable in many applications. Optionally, the CO₂-1 SMA can be expanded with 4 - 20 mA analog output (via a converter box).

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 CO₂ sensor, immobilized on the distal end of a color-coded polycarbonate Luer adapter, is inserted in a polycarbonate T-cell with 1/8" lumen (0.3 mL volume). The sensor stick can be transferred under laminar flow to alternative FTCs e.g. with larger lumen, if they carry at least one Luer connector. The FTC-SU-CD1-09NaCl-S is ideally suited for measurements in media with physiological osmolality, e.g. in perfusion bioreactors for tissue engineering, or other culture monitoring applications. A polymer optical fiber connects the sensor inside the FTC to the CO₂ meter. The cell is delivered beta-irradiated (> 25 kGy) in physiological saline solution to prevent the sensor to dry. The FTC-SU-CD1-09NaCl-S is compatible to the CO2-1 SMA. In combination with the PreSens Measurement Studio 2 software multiparameter monitoring together with single-use oxygen and pH flow-through cells can be performed.