Short photoelectric sensors suppress backgrounds, have IP69K rating

Sick MHTB15 and MHTB15V compact photoelectric sensors are ideal for wash down applications in packaging, food and beverage.


Sick MHTB15 and MHTB15V compact photoelectric sensorsSick, a manufacturer of sensors, safety systems, machine vision, and automatic identification products for factory and logistics automation, announced the MHTB15 and MHTB15V, which is the shortest length photoelectric sensors in a M18 cylindrical housing on the market, the company says. The sensors include best-in-class Sick OES3 background suppression technology and IP69K rating for wash down applications.

MHTB15 has a plastic housing, making it appropriate for standard automation applications, especially where space is a concern. It is the shortest M18 sensor on the market, the company says; the sensor’s housing length measures 36.8 mm for the M12 connector version and 35.8 mm for the cable version.

MHTB15V has a stainless steel housing, designed for the heavy wash down applications, often required in the food and beverage industry that use cleaning methods such as HPLV (high pressure low volume), CIP (clean-in-place), and SIP (sterilize-in-place). It is the shortest stainless steel M18 sensor on the market with a 52.9 mm long housing with M12 connector.

The sensors use a custom ASIC (application-specific integrated circuit) that incorporates OES3 technology to provide exceptional background suppression at an extended range of 300 mm. The OES3 chip contains proprietary technology that enables the sensors to ignore stray background reflections, detect multi-colored or shiny objects, and provide high immunity to ambient light, resulting in an increase in throughput. Company made the announcement June 17, 2010. U.S. base for Sick is Minneapolis, MN.

Sick says it is one of the world’s leading manufacturers of sensors, safety systems and automatic identification products for industrial applications, with nearly 450 patents. Diverse product lines serve production in the logistics, automotive, packaging, electronics, food and beverage, and material handling markets. Sick was founded in 1946 and has operations or representation in 65 countries worldwide.

Search on OES3 at to read more about that technology.

Read more about sensors in the Control Engineering sensors new product area.

- Edited by Mark T. Hoske, Control Engineering content strategist,

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