InPro6970i Trace Optical Oxygen Sensor

InPro 6970i trace optical oxygen sensor designed for brewery applications

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Optical oxygen sensor for breweries.

The new InPro6970i designed for brewery application sets a new standard for operational availability and measurement quality of your oxygen loop especially in the filler line. 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 allow for enhanced process control.

Features and Benefits

Easy operation

The InPro6970i® with its plug and measure functionality combined with fastest Opto-Cap replacement sets a new standard in ease of use.

High process safety

FDA compliant materials of construction and easy-to-clean high-polished surface (N5 grade) to satisfy increasing regulatory requirements.

Maintenance redefined with ISM

The built-in ISM (Intelligent Sensor Management) provides the user important information about the sensor wear and enables predictive maintenance.

Enhanced process control

Highest measurement performance in filler lines.


The light source and the detector are both integrated in the sensor head. The unique ISM (Intelligent Sensor Management) technology is implemented in all optical sensors from METTLER TOLEDO. All system data including calibration and diagnostic information are stored in the sensor.

The METTLER TOLEDO sensors InPro6970i are based on the so call 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.

Segment /ApplicationBrewery applications with
fastest response time requirement
Accuracy1% + 2 ppb
Material in contact with mediumstainless steel (AISI316L) with 3.1B certificates
Mechanical pressure resistancemax. 12 bar (174 psi) absolute
Detection limit2 ppb to 2000 ppb
Connector5 Pin
Insertion lengthfor 12 mm: 120, 220, 320 mm

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“Industrial Technical Services is a single source Instrumentation and Automation company. We provide certified calibrations, PLC programming, custom controls and Panels”.


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