Measurement Set-ups
Single-Channel Set-up for Subsequent Measurement
The sensor spot can be glued into the PET bottle which then can be closed with a standard closure. For this direct coating, the bottles should be transparent but the measurement is even possible through slightly coloured (e. g. greenish or yellowish) or turbid bottles.
Measurement with an Oxygen-Sensitive Cap in Case of Non-Transparent Bottles
To determine the oxygen ingress in dark brown or non-transparent PET bottles, a direct coating of the PET bottle wall with a sensor spot is not possible. To enable non-invasive oxygen ingress measurement also for deeply coloured and non-transparent containers PreSens has developed an oxygen-sensitive cap (OSC) which can be used as closure.
Multi-Channel Set-up for Simultaneous Measurements
Transmitters for 4 and 10 oxygen sensors are offered. With this multi-channel set-up it is possible to monitor simultaneously up to 10 bottles.