Rapid and accurate measurement of dissolved oxygen is important for reducing beer losses in filling plants. METTLER TOLEDO’s new InPro6970i helps to minimize the waste of beer and reduce maintenance costs.
Over many years, in-line oxygen systems have proven to be successful in monitoring a variety of process steps in breweries. Now, in addition to METTLER TOLEDO’s well established electrochemical sensors, there is an alternative available for highly demanding applications.
Minimal loss of beer
Our new optical sensor, the InPro6970i, is based on fluorescence quenching technology and is characterized by a reduced requirement for maintenance and calibration. Further, its performance with respect to measurement stability and response time is better than non-optical sensors. Consequently, the possibility of beer loss in the filling plant can be minimized.
Lower maintenance costs
Just like our O2, turbidity and pH measuring systems, the new optical system is equipped with ISM functionality. METTLER TOLEDO’s Intelligent Sensor Management technology has been developed in order to increase operational availability of a measurement loop, and to provide tools that allow preventive maintenance.
This is achieved through the application of a “Plug & Measure” principle: every time a sensor is connected to the transmitter characteristic sensor data is automatically uploaded to the transmitter. This leads to a rapid start-up and enables quick sensor replacement.
The data includes information on stresses that the sensor has been exposed to - for example the number of CIP cycles - and from this, the current status of the sensor is established and made available to the user. The user can therefore stay informed about any sensor maintenance required before a critical and costly loss of measuring performance occurs.
Available spring 2009
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The heart of the optical sensor is an oxygen-sensitive layer containing immobilized marker molecules. They absorb light from a light emitting diode and are able to release this energy as light at a different wavelength (fluorescence).
The fluorescence depends on the amount of oxygen that is present in the environment of the marker molecules. This effect allows determination of the oxygen concentration in the sample media.