FU-TX 310 clamp-on ultrasonic flowmeter

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.
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Energy-saving monitoringWater-saving managementIndustrial useTap 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 Instruction manual

Product Features

LORRIC clamp-on ultrasonic flowmeter




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.

LORRIC clamp-on ultrasonic flowmeter



Patented Design Guide rails for probes


Metal Guide Rails

  • LORRIC redesigned the whole workflow of ultrasonic probe installation. The goal was to make it so easy, it can be installed even with only one worker. After countless effort and field test, LORRIC finally realized it with our patented guide rails. With it our users can easily install probes even in a confined space. In addition, users have more flexibility selecting an installation location.
  • LORRIC patent metal guide rails are designed to work with our medium size probe TM1(2 to 8 inch pipe) and large size probe TL1(8 to 16 inch pipe). Just like our plastic guide rails, LORRIC’s guide rails provide long-term stability, prevent long term wear and tear due to temperature and vibration.
  • Please use 8mm wrench or hex socket nut driver to quickly tighten the hose clamp.
  • LORRIC guide rails are applicable for installing probes on the same or opposite sides.
  • Sell with FU-TX 310, do not sell separately.




Plastic Guide Rails 

  • According to the size of probes, plastic guide rails will be applicable for 2 to 16 inch pipes.
  • LORRIC plastic guide rails are designed to increase convenience and reliability of probes installation. It solves the problem of probe displacement caused by temperature and vibration, and prevents the probes from the impact of being installed inappropriately during maintenance.
  • LORRIC patent guide rails help probes be perfectly installed onto pipes. As a result, the measurements are more stable and more accurate.
  • The only all plastic guide rails in the market are suitable for measuring chemicals in electrics, chemical, semiconductor, and environmental industries.
  • Sell with FU-TX 310, do not sell separately.


LORRIC clamp-on ultrasonic flowmeter







LORRIC clamp-on ultrasonic flowmeter

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 

Keyboard lock, power-loss data protection
Probe-to-host distance

TM-1: 10 meters (Up to 20 meters)

TS-2 10 meters

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 differenceWhen 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.

LORRIC clamp-on ultrasonic flowmeter

LORRIC clamp-on ultrasonic flowmeter 















LORRIC clamp-on ultrasonic flowmeter

68.3mm 45.2mm 32.2mm 25.3mm 42.6mm




Comparison with flowmeters with other various principles

 Variable area flowmeter
Paddle wheel flowmeters


Paddle wheel flowmeter

 Electromagnetic flowmeter



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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