Overview
Proper installation of sensors is as important as correct selection, since both affect process accuracy and efficiency. This article summarizes common installation issues and practical guidance for installing ultrasonic sensors.
What to consider when installing ultrasonic sensors
Parallel installation: When two ultrasonic sensors are mounted in parallel, observe a minimum separation distance between them to avoid interference. The reference distance values shown in the original diagrams are for guidance only. In practice, determine the minimum adjacent detection distance (X) based on the sensor type, alignment method, beam spread, and the surface condition of targets within the beam. Adjust the spacing as needed to prevent cross-talk or false readings.
Face-to-face installation: When two sensors face each other, the interval between them also matters. If interference occurs, increase the spacing (X) or enable synchronous operation or multi-mode. Note that a sensor with synchronization enabled should not be installed face-to-face with a sensor that does not have synchronization enabled.
Can ultrasonic sensors be used in chemically corrosive environments?
The ultrasonic transducer is typically the critical component. For environments with corrosive materials (for example, chemicals, acids, bases), use sensors with a specially protected transducer and a stainless steel housing. In such designs, the entire transducer assembly (piezoelectric ceramic, decoupling layer, epoxy) is covered by a chemical-resistant coating such as PTFE or FEP to isolate corrosive media.
Fully sealed sensors constructed from stainless steel, such as the UMC3000 or UMB800 series, use V4A stainless steel housings and provide enhanced chemical resistance.
