FU-TX 310 clamp-on ultrasonic flowmeter

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Energy-saving monitoring│Water-saving management│Industrial use│Tap water, cool water, hot water, raw water, sea water, beverages, oil and other liquid.│ Power plants (nuclear power, fire, water)

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Product of Taiwan, Non invasive design, no down time for installation, no pipe cutting, maintenance at any time, significantly reduce installation and maintenance costs. Tube installation-zero tube damage, no blockage, no leakage and pressure problems.


Other Important Features

  • Universal Power Adapter.
  • Bidirectional flow measurement.
  • Patented trigger technology increases ability of anti-interference.
  • Optional water-resistant probes.
  • Patented guide rails for probes provide quick install, precise positioning and long-term stable measurement.
  • Made in Taiwan.



Installation method Tube clamps Power consumption 2W
Measurement principle Time differential Transient flow Instantaneous flow, flow velocity,
time differential display
Flow rate range ±0.1~20m/s Cumulative flow Positive and negative cumulative,
net flow display
Measurement accuracy ±2 % Units Metric or Imperial units
Response time 1 second Display 128 x 64 LCD backlight display
Resolution 0.0001 m/s Operation button 4 touch button
Wired communication Analog output 4-20mA

Modbus RS485 Two-line

Security Keyboard lock, power-loss data protection
Probe-to-host distance TM-1: 10 meters (Up to 20 meters)

TS-2 10 meters

Shell ABS plastic, 145 x 90 x 45 mm
Temperature measurement  Two sets of external PT1000 Power


100-240 50 / 60Hz AC transformer

Temperature range -100~300°C with 0.1°C resolution Applicable pipe material Cast iron, carbon steel, stainless steel, PVC pipe and other
Device working temperature
-10~60°C (14~140°F) Applicable pipe diameter (mm) TM-1 DN50-250 (2″~10″)

TS-2 DN20-50 (¾” to 2″)

Applicable fluid Clean water, oil or chemical with minor impurities Probe waterproof rating  

General probe IP61

Glue probe IP65

Waterproof resistance probe IP68

Wall temperature

Standard probe:0~80°C

High temperature probe:0~150°C


  • Ultrasonic measurement of forward and reverse flow time difference: When the ultrasonic wave is transmitted between probe A and probe B, the direction of forward flow and reverse flow will produce a time difference proportional to the flow rate
  • Accuracy of up to 2%
  • LORRIC special anti-noise technology can reduce the interference of bubbles and solid parts.



149.45mm 137.79mm 98.32mm 90.45mm 52.42mm 9.5mm 34.85mm


68.3mm 45.2mm 32.2mm 25.3mm 42.6mm


Comparison with flowmeters with other various principles

 Variable area flowmeter Paddle wheel flowmeters LORRIC’s
Paddle wheel flowmeter
 Electromagnetic flowmeter  Ultrasonic


Pipeline loss Low Low Low No No
Non-invasive install No No No No Yes
Precision Middle Middle Middle High High
Bidirectional flow detectable No No  Yes Yes Yes
Blockages Possible Possible Possible Not possible Not possible
Applicable fluid Air / Liquid Liquid Liquid Conductive liquid Liquid
Cost Lowest-costs in small diameter pipe, cost increases with pipe diameter Low-costs, cost increases with pipe diameter

Low-costs, cost increases with pipe diameter

High-costs, cost increases with pipe diameter Middle-costs Cost does not increase with pipe diameter

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