Rectangular and compact ultrasonic sensors

Rectangular and compact ultrasonic sensors offer block-shaped, flat and other non-threaded designs for mounting on a machine or bracket. When choosing, the shape and size of the housing, the direction of emission and the space required for the sound beam are decisive. The designation Q62, S40 or another series must correspond to the drawing of the specific product.

Mounting in confined spaces

Compare the mounting holes, the position of the active surface and the cable or connector outlet. A low installation height does not mean that any obstacle can be placed in front of the face. Surrounding brackets and walls can reflect sound and affect detection. Also leave access to the setting buttons and indicators.

Range and electrical function

The design size does not indicate the measuring range. Verify the minimum and maximum working distance, blind zone and detection diagram for a suitable target. The switching version transmits a state; the analogue variant provides a continuous signal. Assess PNP/NPN, current or voltage analogue and communication separately from the NO/NC logic.

• Record the size of the target, extreme distances and required response speed.
• Compare the supply, output load capacity and control system input.
• Verify the contact assignment and the mechanical design of the connection.
• Check the degree of protection, temperature range and cleaning conditions of the variant.

Example of a rectangular design

BALLUFF BUS006H,, designated BUS Q62K1-PWX-60/600-S92K,, is listed by the manufacturer as a rectangular version with two PNP NO/NC switching outputs and a five-pin M12 connector. This is an example of a design; the same parameters cannot be transferred to the entire Q62 series or to other rectangular sensors.

What to verify before commissioning

Carry out a test with the actual material and in all working positions. When several ultrasonic sensors operate together, verify mutual interference. Take the settings and any synchronisation from the manual of the exact order code.

All ultrasonic sensors and selection guide · Sensor Cables and Connectors

Technical documents: Technical data BALLUFF BUS006H · Mounting ultrasonic sensors – microsonic.

Selection questions

When to choose a rectangular sensor instead of a cylindrical one?

A rectangular or flat housing is suitable where its mounting holes, height or direction of the active surface fit better. Decide according to the drawing and the space for the cable and sound beam.

Does a compact housing always have a shorter measuring range?

The housing shape alone does not determine the range. For each variant, compare the working distance, blind zone, response and target size given in the detection diagram.