PreSens' Featured System for Oxygen Ingress Measurements

The Fibox 4 trace is a stand-alone oxygen meter designed for easy handheld use. Its robust housing is splash-proof, and the controls were developed to be operated even while working under harsh conditions with heavy gloves on. The oxygen meter can adapt to dry or humid environmental conditions, and is temperature compensated. Additionally, it has automatic compensation for pressure and salinity. Fibox 4 trace can be operated with sensors type PSt3 (detection limit 15 ppb dissolved oxygen, 0 – 100 % oxygen), type PSt6 for the trace oxygen range (detection limit 1 ppb dissolved oxygen, 0 – 5 % oxygen), and also with type PSt9 for ultra-low oxygen measurements (detection limit 0.5 ppmv, 0 - 200 ppmv gaseous oxygen). With its integrated barcode reader the oxygen meter can identify and calibrate a sensor just in one scan. Its sensor management system allows to store data of up to 100 sensors. Fibox 4 trace has 16 GB internal memory which allows prolonged computer-independent operation. It is delivered with the PreSens Datamanagement software allowing data transfer to a PC for further analysis.

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-1 SMA, OXY-1 WM,OXY mini and pH-1 SMA series, as well as the CO2-1 SMA. The POF with ST connector is compatible with meters of the Microx 4 and OXY-1 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.

Sensor spots are the most versatile version of non-invasive optical oxygen sensors. They can be attached to the inner surface of any transparent glass or plastic vessel like e. g. used for packaging. Oxygen is measured contactless through the transparent vessel wall. The SP-PSt6-NAU has a measurement range of 0 – 5 % oxygen, dissolved or in the gas phase. The oxygen sensitive coating is immobilized on a 125 µm flexible transparent polyester foil, which does not stand autoclaving.