LU300A Series

The LU300A Series combines the sensor and electronics in a compact, integrated clamp-on ultrasonic flow meter. It mounts on the outside of the pipe without changing the piping or interrupting production. The non-invasive design has no moving parts in the flow path and adds no pressure drop.

Measurement Principle: Ultrasonic transit-time method
Mounting: Integrated clamp-on design
Accuracy: ±2.0% at 0.3–5.0 m/s
Flow Velocity Range: 0.1-5.0 m/s

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Basic Parameters

Measurement Principle	Ultrasonic transit-time method
Mounting	Integrated clamp-on sensor and electronics
Accuracy	±2.0% (velocity 0.3–5.0 m/s)
Linearity	±2.0% (velocity 0.3–5.0 m/s)
Repeatability	0.8%
Flow Velocity Range	0.1–5.0 m/s (measurement range) 0.3–5.0 m/s (specified accuracy range)
Response Time	500ms

Pipe Specifications

Pipe Diameter	DN6–DN100 (outside diameter Φ9.53–Φ110 mm)
Pipe Materials	Metal: stainless steel, carbon steel, copper Plastic: PVC, CPVC, PPR, PPH, PFA, PU, HDPE, etc.
Wall Thickness Range	1-10mm

Flow Range by Pipe Size

DN6 (Φ9.53)	0.2-20 L/min
DN8 (Φ12.7)	0.44-30 L/min
DN10 (Φ15)	0.57-50 L/min
DN15 (Φ20)	0.92-70 L/min
DN20 (Φ25)	1.36-150 L/min
DN25 (Φ32)	2.71-200 L/min
DN32 (Φ40)	4.24-330 L/min
DN40 (Φ50)	6.8-460 L/min
DN50 (Φ63)	9.54-700 L/min
DN65 (Φ75)	14.8-1030 L/min
DN80 (Φ90)	21.8-1360 L/min
DN100 (Φ110)	36.5-2170 L/min

Compatible Fluids

Media Type	Water, purified and ultrapure water, compatible acids, alkalis, organic liquids, chemical solvents, alcohol, and beverages
Media Requirement	Clean fluid without flow-induced bubbles; maintain pressure above 0.3 MPa
Supported Viscosity	<300 CST (mm²/s)

Electrical Parameters

Power Supply	DC 24V @ 3W
Analog Output	4–20 mA, maximum load 600 Ω
Communication Interface	RS485 with Modbus RTU
Alarm Output	OCT high/low limit alarm outputs and pulse output (optional)
Relay Output	30 V DC @ 1 A (optional), switching frequency <2 Hz

Display & Operation

Display	1.3-inch 128×64 OLED with reversible orientation
Menu Languages	English
Display Units	m³/h, L/min, GPM, L/h
Displayed Data	Instantaneous flow, velocity, net total, batch total, and daily/monthly/yearly totals
Totalizer	7-digit flow totalizer
Stored Totals	10 years, 64 months, 64 days
Operating Buttons	4 tactile buttons
Real-Time Clock Battery	CR1220

Environmental Specifications

Media Temperature	-10°C~50°C
Ambient Temperature	-10°C~50°C
Ambient Humidity	0%–95% RH, noncondensing
Protection	IP54/IP65

Mechanical Parameters

Mounting Method	Integrated clamp-on design secured with screws
Wetted Parts	Non-contact measurement
Cable Length	2.0 m (extendable to 20 m)

Measurement conditions & notes

The LU300A integrates the sensor and electronics in a compact unit.
The sensor clamps onto the outside of the pipe without pipe cutting or a production shutdown.
Four screws secure the sensor for straightforward installation.
Non-contact measurement has no moving parts in the flow path and adds no pressure drop.
Supports multiple compatible metal and plastic pipe materials.
Applications include semiconductors, pharmaceuticals, medical equipment, chemical processing, cleaning, and food and beverage production.

Confirm fluid compatibility, materials, connections, and available configuration with our team before ordering.