FU-TX 310 Clamp-on Ultrasonic Flowmeter Manual v3.
  • This instruction manual version is v3.0
  • Firmware update date and version function description
  • 1. Product Introduction
    • 1.1 Specifications
    • 1.2 Important concepts
    • 1.3 Product features
    • 1.4 Product applications
    • 1.5 Measuring principle
    • 1.6 Product contents
    • 1.7 User interface
      • 1.7.1 Screen interfaces
      • 1.7.2 Buttons
      • 1.7.3 LED message
  • 2. Installation Method
    • 2.1 Power
    • 2.2 Ultrasonic probe
      • 2.2.1 Probe wiring
      • 2.2.2 Meter wiring
      • 2.2.3 Installation location
      • 2.2.4 Installation method
      • 2.2.5 ​Probe installation method
    • 2.3 Temperature sensor/Analog output
      • 2.3.1 Temperature sensor
      • 2.3.2 Analog output
      • 2.3.3 RS485
    • 2.4 Installation check
      • 2.4.1 RSSI (Signal Strength)
      • 2.4.2 Q value
      • 2.4.3 Flight time
  • 3. Output Interface
  • 4. Setting up the Interface
    • 4.1 Intial menu settings
    • 4.2 Units
    • 4.3 Meter (Measurement Settings)
    • 4.4 Communication
    • 4.5 Other
    • 4.6 Save
  • 5. Error Messages and Solutions
  • 6. Other Conditions
  • 7. MODBUS Communication Protocol
  • 8. Cautions
  • 9. Sound Speeds Data
  • LORRIC Integration and Application Center
Powered by GitBook
On this page

Was this helpful?

Export as PDF
  1. 1. Product Introduction

1.5 Measuring principle

Previous1.4 Product applicationsNext1.6 Product contents

Last updated 5 years ago

Was this helpful?

Fluid flow rate = V​; sound wave velocity during transmission through the fluid = c​; interior pipe diameter = D,​ interior pipe cross section = A​. When ultrasonic waves are transmitted through water between probes A​ and B​, the forward and reverse flow directions produce a time differential that is proportional to the flow rate.

Flow rate is Q = v * A. If the interior pipe cross section is a circle, then Q= v＊(d² π/ 4). Therefore, the size of the pipe diameter and the flow accuracy have a great relationship.