Insitu, Inc.

Steven Collin Sewell

Elijah Lyle Scott

Duane B McKee

Nathan T Baltz

Duane B Mckee

Provided is a cleanable conductivity sensor and related methods having a distal sensing end in which active sensing elements are positioned and an outer fin specially configured to minimize unwanted interference without impacting the ability for automated cleaning of the distal sensing end. A rotatable wiper or brush may be periodically rotated over the distal sensing end, thereby removing unwanted biological build-up and avoiding fouling, thereby increasing the sensor deployment time without active intervention and maintenance.

Cleanable flat-faced conductivity sensor

Provided are turbidometers and fluorometers having a unique form-factor to accommodate a number of optical components in a confined geometry. This provides the ability to compensate for change in light intensity from an optical source even in a closed-loop manner. The ability to package reference and signal detectors, along with a relatively large diameter LED light source in a confined geometry is particularly suited for applications requiring small-diameter sensors, such as multi-parameter sonde devices having a total diameter that is in the sub-two inch range.

Compact sensor for measuring turbidity or fluorescence in a fluid sample

Provided are multi-parameter sonde systems having a unique form-factor, wherein the plurality of sensors are arranged in a tight-fit configuration. This provides a single distal sensing surface and minimal separation distance between adjacent sensors. The sensors may be pie shaped with an interlocking feature to tightly hold the sensors together, with a sensor guard disposed over the outer surface of the interlocked sensors. Sensor-guards disclosed herein may have an integrated sensor storage and sensor guard configuration, thereby avoiding a need for a separate storage cup and that are configured to minimize unwanted biological growth. Also provided are uniquely shaped individual sensors having interlocking features to hold several sensors together in a sonde.

Reversible sensor guard for use with a sonde

Submersible multi-parameter sonde having a high sensor form factor sensor

Multi-parameter sonde having a guard with multiple paired passages

Base for a multi-parameter sonde

Brush for a multi-parameter sonde

Sensor for a multi-parameter sonde

Multi-parameter sonde and portions thereof, including sensor, sensor guard and brush thereof

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Fort Collins, CO, United States of America

Steven Collin Sewell