Flowline EchoSonic LU23/LU27/LU28/LU29 Ultrasonic Level Transmitter User Manual

The EchoSonic® is a general-purpose ultrasonic level transmitter that provides a loop powered 4-20 mA output. The 4-20 mA output can be used to provide the proportional level of liquid in any tank or vessel. The signal can be connected to any device that accepts loop powered 4-20 mA signals, such as a PLC, SCADA, DCS, display, controller, etc.


Flowline EchoSonic LU23/LU27/LU28/LU29 Ultrasonic Level Transmitter User Manual - cover page
Brand
FlowLine
Document type
User Manual
Language
English
Pages
24
File format
PDF
File size
1.9 MB
Published
12 October, 2023
Updated
12 October, 2023
MD5 checksum
EACB0176E72FD993ED32EE36AC981C71

About this manual

The EchoSonic is a general-purpose ultrasonic level transmitter that provides a loop-powered 4-20 mA output for measuring liquid levels in tanks or vessels. It features simple configuration via WebCal software and includes adjustable fail-safe settings, hold last functionality, and the ability to reverse the mA output direction.

Configuration is performed using the free WebCal PC software connected via a USB Fob interface. The manual details four steps: sensor configuration, tank shape selection, tank level configuration, and writing settings to the unit. It also provides wiring diagrams for PLCs and displays, installation guides for various fittings, and troubleshooting tips.

What's inside

  • Specifications
  • Dimensions
  • Safety Precautions
  • Components
  • Getting Started
  • USB Fob Interface
  • Wiring Diagrams
  • Installation
  • Mounting Guide
  • Troubleshooting

Specifications

Supply voltage24 VDC (loop)
Signal output4-20 mA, two-wire
Loop resistance500 Ohms @ 24 VDC
Process temperature (F)-4° to 140° C
Enclosure materialPolycarbonate
Transducer materialPolyvinylidene Fluoride (PVDF)

Frequently asked questions

What is the maximum supply voltage for the EchoSonic?

The supply voltage should never exceed a maximum of 28 VDC.

Can the transmitter be used without configuration?

Yes, it can be used in the original factory setting without configuration with WebCal software.

What is the maximum cable length for installation?

Upon installing the sensor, the maximum cable length is 1,000 feet.

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