Echotel® – Model 338 – Two-Wire Non-Contact Ultrasonic Transmitter

Echotel Model 338 is a two-wire, loop-powered non-contact transmitter for liquid level, volume, and open channel flow measurement. Featuring advanced digital signal processing and a powerful transducer, this versatile transmitter provides exceptional measurement performance in a wide variety of applications.

Measurement Principle : 

Ultrasonic pulses are emitted from the transducer and the time required for the echo to reflect from the liquid surface and return to the transducer is measured.

Features : 

  • Plug-in 6-digit alphanumeric LCD module with custom graphics display
  • 4-20 mA output with 600 ohm load
  • Advanced digital signal processing assures reliable measurement in difficult applications
  • Dual function bar graph displays echo signal strength or tank level
  • 80 kHz transducer with 20 feet (6 meter) range
  • Narrow, 5 degree beam angle provides excellent performance in tanks with obstructions

Applications : 

  • Sumps, wells, tanks and open channel flow in weirs and flumes
  • General industrial applications
  • Chemical storage tanks
  • Vessels with highly viscous media
  • Paint, ink and solvent tanks