Non-Contact Ultrasonic Level Sensors


ABM SENSOR TECHNOLOGY has a family of outstanding ultrasonic sensors. The sensors cover distances from 5″ to 90′ with integral electronics, (expensive remote sensors are not required).

Typical Applications:

  • Liquids without foam
  • Liquids without methane, CO2 and H2S
  • Water and solid mixtures
  • Oil without H2S
  • Inks and water based paint containers (low fume)
  • Plastic powder, pellets, seed, grain, cement and gravel (divide max range by 2; high dust by 3)
  • Any object detection, fast moving objects
  • No vacuum
  • No Rapid Changes of temperature in tanks
  • Material shape detection on belt conveyors
  • Sanitary applications with CIP
  • CO2 and methane detection
  • Any of the above with high temperature environments
  • Applications where there is up to 5 bars of pressure (no vacuums)
  • Anti-collision system
  • Pharmaceutical applications ie. Small tanks
  • Top of foam detection for short distance (Max. range divided by 6)
  • Open Channel flow measurement
  • Motion detector, fast moving objects

The ultrasonic transducers with very high efficiency, narrow beams and wide frequency bandwidth, work in all conditions over a wide temperature range. They are insensitive to mountings and with help of the transceiver and smart signal processing, they eliminate unwanted echoes from tank walls, standpipes and any other buildups. The transducers provide a self-cleaning operation, so their faces eliminate any buildup and condensation. The ultrasonic probes adapt to any environment conditions, their power and receiver sensitivity adjust automatically to any distance and reflecting object. They keep the same echo amplitude over the operating range.

Built in communication with PC allows storage of the current output and temperature in a data logger. The data logger is linked with the Microsoft Excel. The ultrasonic probes can be connected in network using RS485 with ABM’s protocol and Modbus RTU. In connection with a PC one can have a full diagnostic (loss of echo, temperature sensor failure, noise error, etc.). A user can also see on the computer screen the echo profiles and echo stability chart.