Optical oxygen sensor

The InPro6970i from Mettler Toledo is designed for brewery applications. The optical oxygen sensors are easy and fast to maintain, leading to enhanced process safety and low cost of ownership. Reduced signal drift and faster response time compared to amperometric sensors guarantees maximum accuracy of the oxygen measurement and allows for enhanced process control.

The InPro6970i sensors are based on so-called fluorescence quenching. The signal of the fluorescence is compared with a reference signal and the oxygen concentration is calculated from the time shift between these two signals. The oxygen concentration is displayed on the transmitter. The light source and the detector are both integrated in the sensor head. Mettler Toledo's Intelligent Sensor Management technology is implemented in this sensor, and all system data including calibration and diagnostic information are stored in the sensor.

The plug and measure functionality of the InPro6970i combined with fast Opto-Cap replacement makes the device easier to use. FDA-compliant construction and an easy-to-clean, high-polished surface (N5 grade) satisfy regulatory requirements.