Clamp-on Ultrasonic Flow Meter
The clamp-on ultrasonic flow meter uses sensors attached to the pipe, requiring no cutting or flow interruption. It is ideal for situations where downtime is not an option and contamination-free measurement is needed. It prevents leakage and pressure issues while ensuring consistent accuracy across different flow conditions.
Principle and Technology
The FU-ES ultrasonic flow meter with EchoSense technology calculates flow rate using the formula: Flow Rate = Pipe Area × Flow Velocity. It measures the time difference between faster downstream (A to B) and slower upstream (B to A) signals to determine flow velocity and, consequently, the flow rate.
Learn more: How to Calculate Flowrate
Split Design for Remote Monitoring
The FU-TX series ultrasonic flow meter features a split design, with the sensor clamped to the pipe and the display unit is placed in a convenient location for monitoring and operation. Ideal for large elevated pipelines and remote monitoring, such as chilled water systems and long-distance oil and gas pipelines.
For smaller pipes : FU-ES Ultrasonic Flow Meter
Patented Metal Clamp
LORRIC's patented FU-TX metal clamp offers a distinct advantage over traditional flow meter brackets. Its unique design allows for precise alignment of the probes, enabling easy installation even in tight spaces, with flexible positioning options. The clamp is suitable for both same-side and opposite-side installations and is designed to resist loosening due to gravity.
Applicable to variety of fluids, pipe materials and diameters
FU-TX ultrasonic flowmeter is versatile, working with water, oil, and chemicals. It's compatible with stainless steel, PVC, and even PP, PVDF piping materials. With applications ranging from 2-inch to 16-inch pipes.
Say goodbye to costly ultra sonic gel; Welcome time and cost savings
LORRIC's "ultra sonic gasket pad" is a hassle-free solution that saves you both time and money. No more dealing with the mess and inconvenience of ultrasonic gel.
Multiple Communication Outputs
FU-ES supports various communication modes like Analog output with self-powered 16-bit 4-20mA, Modbus RTU RS485. No need for additional communication modules – we've got you covered!
Learn more:
•What is Analog Output
•What is Modbus RTU RS485
Detect problems instantly and intelligently with automatic environment sensing
Our ultrasonic flowmeter is engineered for smarter, more reliable performance with a dedicated third transducer designed for environmental sensing, allowing it to adapt seamlessly to changing flow conditions. This advanced feature continuously monitors critical factors like fluid sound velocity, incomplete pipe fills, and impurities, ensuring precise measurements while preventing disruptions. By detecting these variables in real time, it helps minimize downtime and keeps your operations running smoothly.
Guided Setup for Efficient Operation
The FU-TX320 features a built-in pipe material and specification database. Simply follow the prompts to select pipe material, size, and thickness—no manual entry of complex parameters needed. Streamlined setup helps users quickly complete installation and startup, reducing errors and saving time.
Track Energy Usage to Achieve ESG Goals
The LORRIC FU-TX 310 ultrasonic flow meter features data collection capabilities and can be installed without disrupting equipment operations, helping to prevent business losses. By accurately tracking energy consumption and reducing maintenance costs, it supports effective energy monitoring and reporting, aligning with ESG goals.
|
FU-TX320 |
| Installation Method |
Outside the pipe (clamp-on type) |
| Applicable pipe diameter |
DN 50 - 400 |
| Probe installation method |
V-method (2 - 8 inch) |
Z-method (3 - 16 inch) |
| Clamp set |
1 clamp + 2 bands per pipe
320mm short clamp : 2 - 5 inch
460mm long clamp : 5 - 8 inch
|
2 clamps + 4 bands per pipe*
320mm short clamp : 3 - 8 inch
460mm long clamp : 8 - 16 inch
|
| Band length |
Matched to pipe outer diameter (320 / 450 / 550 / 700 / 900 / 1300 / 1500 mm) |
| Applicable piping materials |
Metal pipe*, Plastic pipe (UPVC, PPH, PVDF) |
| Applicable fluid |
Various liquids (no impurities or air bubbles) |
| Applicable fluid temperature |
0 ~ 85°C (no ice on the piping surface) |
| Velocity range |
±0.3 to 6.0 m/s recommended, ±0.1 to 10m/s measurable |
| Language |
English, Traditional & Simplified Chinese (others customizable) |
| Unit |
Metric - Meters, Cubic Meters, Liters
Time - Seconds, Minutes, Hours, Days
Imperial - Feet, Cubic Feet, UK gallon, US gallon |
| Display |
3-color backlight, 3-line 16-character LCD |
| Display update cycle |
0.5s, 1s |
| Measurement accuracy |
±3.0% RD (10%-100% F.S.), ±0.3% F.S. (0%-10% F.S.)** |
| Display resolution |
Max resolution 0.0001 (finest) |
| Power supply |
Standard: External DC 24V (supplied via 8-pin loose cable) / Optional: 110VAC 60Hz to 24VDC transformer*** |
| Probe-to-host cable length |
Standard: 10m PVC cable |
| Probe connector type |
PVC waterproof connector (Default)
Optional: M12 Circular connector |
| Probe accessories (included) |
1 pair black coupling pads (pre-installed) + 1 spare pair black coupling pads + 1 pair transparent coupling pads + 1 tube coupling grease |
| Power I/O Connector |
2m 8-pin loose cable |
| Input/Output |
RS485 Modbus RTU (up to 256 units), 4-20mA / 0-20mA analog output, OCT (5-30VDC / 200mA) |
| Consumption current |
<200mA@24V when starting up and working stably (not included in the communication current) |
| Protection circuit |
Power reverse & surge protection |
| Box waterproof level |
IP67 |
| Probe waterproof level |
General probe IP61 / Waterproof and chemical-resistant probe IP68 |
| Ambient temperature |
-10 ~ 60°C (no freezing) |
| Relative humidity |
35 ~ 85%RH (non-condensing) |
| Material |
Host - ABS |
| Temperature measurement |
Standard: None / Optional: 3-wire Pt100 pair, 3m or 10m (stainless steel sheath type or patch type)**** |
| Mounting |
Standard: 4-corner screw mount on flat surface (screws not included) / Optional: DIN-rail backplate module (DIN rail not included) |
| Calibration report |
Optional: Flow factory calibration report / Temperature factory calibration report (specify when ordering) |
| Certification |
|
* For pipes ≤ 4 inch, the V-method is generally recommended. The Z-method should only be used in environments with particularly poor signal conditions, otherwise it may produce less accurate results.
** The measurement accuracy is established in a controlled laboratory environment where the pipe and fluid conditions are set and the instrument is calibrated to zero before conducting tests at 25°C. Although statistical results are obtained under these conditions, there may be variances in accuracy when used in customer environments.
*** Custom 110VAC 60Hz to 24VDC transformer is provided as a customer-service item only and is outside the scope of warranty and product certification.
**** Pt100 temperature/BTU function is custom-configured at the factory and cannot be retrofitted; if a calibration report is required, please notify in advance (additional fee applies).
******
Size
| A |
B
|
C
|
D
|
E
|
F
|
G
|
| 149.45 |
98.32 |
137.79 |
90.45 |
52.42 |
9.5 |
34.85 |
| A
|
B
|
C
|
D
|
E
|
| 68.3 |
45.2 |
32.2 |
25.3 |
42.6 |
Unit：mm
How to Order — FU-TX320
Use the selections below to build your order code. Steps 1–5 configure the main unit; the clamp set is ordered separately with its own part number.
- Make a selection for each of the 5 steps. Options marked (Standard) are the default configuration.
- Options marked ⚠ Confirm with sales require availability confirmation before ordering.
- Select your clamp installation method and pipe size to generate the clamp set code.
- Your order codes update live in the “Your order code” section below — copy and include them in your order inquiry.
Temperature sensors must be specified at time of order — they cannot be added after shipment.
Please select your main unit configuration:
1Power supply
— Select power supply —
External 24 VDC supply via 8-pin cable with flying leads (Standard)
Global AC to 24 VDC adapter (universal input)Currently unavailable
2Transducer cableIP rating & connector type
— Select transducer cable —
IP61 TM1 — waterproof connector (Standard)
IP68 TM1 — waterproof connectorAdditional charge
IP61 TM1 — M12 connectorAdditional charge
IP68 TM1 — M12 connectorAdditional charge
3Temperature sensorOptional add-on · enables BTU metering
— Select temperature sensor option —
None (Standard)
10 m PT100 — stainless steel tube type, 1 pairAdditional charge
10 m PT100 — patch type, 1 pairAdditional charge
3 m PT100 — stainless steel tube type, 1 pairCurrently unavailable
3 m PT100 — patch type, 1 pairCurrently unavailable
⚠ Please confirm availability with sales before placing your order. Temperature sensors cannot be retrofitted after shipment.
4Mounting
— Select mounting type —
Screw-mount onto flat surface (Standard), screws not included
DIN rail backplate module, DIN rail not includedAdditional charge
5Communication & power cable
— Select cable option —
2 m, 8-pin cable with flying leads (Standard)
2 m, 8-pin cable + 110 VAC 60 Hz to 24 VDC transformerCurrently unavailable
Please select your clamp set: (ordered separately with its own part number)
For pipe ≤4" (DN100): use Z method only when signal quality is particularly poor — it may otherwise reduce measurement accuracy.
Pipe size:
— Select pipe size —
2"–3" nominal pipe (DN50–DN80)
3"–4" nominal pipe (DN80–DN100)
4"–5" nominal pipe (DN100–DN125)
5"–6" nominal pipe (DN125–DN150)
7"–8" nominal pipe (DN175–DN200)
— Select pipe size —
3" nominal pipe (DN80)
3"–4" nominal pipe (DN80–DN100)
4"–5" nominal pipe (DN100–DN125)
5"–6" nominal pipe (DN125–DN150)
7"–8" nominal pipe (DN175–DN200)
8"–10" nominal pipe (DN200–DN250)
12"–14" nominal pipe (DN300–DN350)
16" nominal pipe (DN400)
⚠ Please confirm availability with sales before placing your order for this clamp configuration.
* Note on clamp availability: The sizes listed reflect current inventory. Once stock is depleted, replacement sizes will be provided: 460 mm clamps → 420 mm, 320 mm clamps → 310 mm, with alternating strap attachment positions.
Your order code
Main unit code:
FU-TX320 — — — — — — — — — —
Clamp set code:
—