Mini Ultrasonic Proximity Sensors generate focused beam.

Press Release Summary:

Measuring 0.5 in. dia x 3.5-4 in. long, sensors are available as UNAM 12U9914/S14D analog models with variable signals and sensing distances up to 3.25 in., or UNAM 12P1914/S14D discrete models with sensing accuracy up to 2.75 in. Nose cone or beam collimator narrows focus of 12 mm sensors to opening of 4.9 mm. With beam angle of 6° and resolution less than 0.3 mm, units can access tight spaces and are suited for detecting small changes in level.

Original Press Release:

Mini Ultrasonic Proximity Sensors with Focused Beam

Narrow Beam Easily Penetrates Small Openings

Southington, CT -- July 19, 2005.... Baumer Electric has introduced new ultrasonic proximity sensors that generate a highly focused beam of sound that can easily access very tight spaces and openings. Just 0.5-inch in diameter and 3.5 to 4 inches long, these sensors are ideal for small space applications and deliver proven results in pharmaceutical, medical, food, cosmetic, and household and personal care packaging manufacturing.

Baumer focused ultrasonic sensors are available either as UNAM 12U9914/S14D analog models with variable signals or UNAM 12P1914/S14D discrete (on/off) models. The analog sensors offer sensing distances up to 82mm (3.25 inches), while discrete models deliver sensing accuracy up to 70mm (2.75 inch). The sensors feature a narrow beam angle of just 6º, while the nose cone or beam columnator narrows the focus of the 12 mm sensor to an opening of just 4.9 mm. Combined, these features allow accurate sensing in small spaces and eliminate interference from either side of the target. Resolution is less than 0.3 mm, excellent for detecting very small changes in level.

Both models feature an external teach function that allows the user to remotely program the best scanning range for the application. A lockout feature prevents unwanted output programming changes. The sensors are easy to mount and are IP67 rated to protect from moisture. The analog sensor features a reversible 0 to 10 volt output.

These focused ultrasonic sensors are designed for use with any level material that can bounce back sound, including liquids and clear substrates such as plastic and glass.

For more information on the Focused Beam Mini Ultrasonic Proximity Sensors, contact Baumer Electric at (800) 937-9336,, or via e-mail at Baumer is a global leader in the design, manufacture and marketing of high quality, precision sensors since 1952 serving a variety of markets including Automation, Graphics, Robotics/Material Handling, Medical, Machine Tool and Specialty Machines.

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