LU300B Series

The LU300B Series clamp-on ultrasonic flow meter uses separate sensor and electronics units. The sensor mounts on the outside of the pipe, enabling installation without pipe modification or a production shutdown. With no moving parts in the flow path, it adds no pressure drop. Applications include pharmaceutical blending, beverage production, fine chemical processing, and cleaning equipment.

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

Request a quote

Configuration and suitability confirmed for your application.

Basic Parameters

Measurement Principle	Ultrasonic transit-time method
Mounting	Separate clamp-on sensor and electronics
Accuracy	±2.0% (velocity 0.3–5.0 m/s)
Repeatability	±0.5%
Flow Velocity Range	0.1–5.0 m/s (measurement range) 0.3–5.0 m/s (specified accuracy range)
Flow Units	m³/h, L/min, ml/min, GPM, L/h

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)	0.44-30 L/min
DN10 (Φ12.7)	0.92-70 L/min
DN15 (Φ15)	0.2-20 L/min
DN20 (Φ20)	0.57-50 L/min
DN25 (Φ25)	1.36-150 L/min
DN32 (Φ32)	2.71-200 L/min
DN40 (Φ40)	4.24-330 L/min
DN50 (Φ50)	6.8-460 L/min
DN65 (Φ63)	9.54-700 L/min
DN80 (Φ75)	14.8-1030 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 12-36V
Power Consumption	≤2W
Output Signals	4–20 mA, RS485 (Modbus RTU), pulse output
Communication Protocol	Modbus-RTU

Display & Operation

Display	LCD
Display Information	Instantaneous flow, velocity, net total, and batch total
Operation	4 tactile buttons

Environmental Specifications

Media Temperature	-10°C~60°C
Ambient Temperature	-10°C~50°C
Ambient Humidity	0%–95% RH, noncondensing
Protection	IP65

Mechanical Parameters

Electronics Housing Material	ABS
Sensor Material	Engineering plastic
Cable Length	2.0 m (extendable to 20 m)
Net Weight	Approximately 1.0 kg

Measurement conditions & notes

The LU300B sensor clamps onto the outside of the pipe without cutting the pipe or stopping production.
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 pharmaceutical blending, beverage production, fine chemical processing, and cleaning equipment.

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