LD300 – Electromagnetic Water Flow Meter
The LD300 Electromagnetic Water Flow Meter is a smart water flow measurement device engineered for accurate and reliable monitoring of conductive liquids across a wide range of industrial, municipal, and commercial applications. Utilizing advanced electromagnetic flow sensing technology, this non-intrusive magnetic water meter offers zero pressure loss, no moving parts, and minimal maintenance, making it ideal for long-term use in harsh environments.
With support for multiple pipe sizes and installation types — including integrated, split, and insertion magnetic flow meter configurations — the LD300 delivers dependable performance across a wide range of use cases. It is a leading choice for engineers and technicians seeking efficient, real-time water flow monitoring and smart water flow control.
Applications
✔ Water Management – Accurate and real-time flow control for municipal water supply, potable water systems, smart irrigation, and pulsed water meter applications.
✔ Industrial Process Control – A reliable industrial water flow meter for flow rate monitoring in manufacturing, chemical processing, energy, and utilities.
✔ Food & Beverage – A hygienic electromagnetic water meter ideal for CIP (Clean-in-Place) systems, dairy, brewing, and bottling lines requiring strict sanitary compliance.
✔ Agriculture Irrigation – Optimizes water usage and efficiency in farms and irrigation systems using a high-precision smart water flow sensor.
✔ Wastewater Treatment – A durable wastewater flow meter suitable for sewage, effluent, sludge, and other wastewater flow measurement needs.
Description
The LD300 Electromagnetic Water Flow Meter is a high-precision magnetic water meter designed for accurate and stable water flow measurement in conductive liquids. Engineered for a broad range of industrial, municipal, and environmental applications, this advanced electromagnetic water meter delivers real-time, non-intrusive flow monitoring with zero pressure loss and no moving parts — ensuring long-term reliability and minimal maintenance.
Leveraging cutting-edge electromagnetic technology, the LD300 is ideal for:
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Industrial water flow monitoring
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Smart water flow meter applications in irrigation and potable water systems
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Wastewater flow measurement and sewage system management
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Water usage monitoring in distribution networks
This robust electronic water flow meter supports on-site display, analog output (4–20mA), frequency and pulse output, and digital protocols like RS485, HART, and Modbus — allowing easy integration into SCADA and smart water management systems.
With corrosion-resistant materials and IP65/IP68 protection options, the LD300 withstands harsh environments. Available in integrated, split, and insertion-type configurations, and supporting pipe sizes from DN50 to DN3000, this industrial water flow meter is suitable for applications ranging from agriculture irrigation to wastewater treatment and potable water supply.
Features
✅ Zero Pressure Loss & Minimal Maintenance
Designed with no moving or obstructive parts, this magnetic water meter minimizes wear, blockages, and maintenance, making it ideal for long-term use in smart water flow measurement systems.
✅ Wide Fluid Compatibility
Built for harsh conditions, the LD300 handles conductive fluids such as acids, alkalis, sludge, pulp, and slurry. Its customizable electrode and liner materials make it a versatile choice for wastewater flow meters, industrial processes, and paper production.
✅ High Accuracy & Long-Term Stability
Unaffected by changes in fluid pressure, temperature, density, or viscosity, this electromagnetic water flow meter maintains ±0.5% measurement accuracy, ensuring dependable readings in municipal water, irrigation, and sewage flow monitoring.
✅ Advanced Signal Processing
Equipped with low-frequency rectangular wave excitation, the LD300 reduces signal drift and electromagnetic interference—ideal for industrial water flow meter applications requiring consistent performance.
✅ Intuitive Interface & Real-Time Monitoring
The large LCD backlit display shows real-time bidirectional flow rates, total volume, and diagnostic information. Online parameter adjustments and outputs like 4–20mA, pulse, or RS485 make it a smart choice for digital water flow measurement systems.
Specification
| Type | Integrated type: LD300
Split type: LD300-S Insertion type:LD300-P |
| DN size(mm) | DN6-3000mm(for LD300, LD300-S)
DN100-3000mm(for LD300-P) |
| Maximum flow speed | 0.5~10m/s |
| Output signal | Analog output
0~10mA, load resistance: 0~1.5KΩ 4~20mA, load resistance: 0~750Ω Frequency output Alarm Output Pulse output RS232/RS485 |
| Power Supply | AC power supply, voltage range: 85VAC~250VAC;
DC 24V power supply, voltage range: 20VDC~36VDC; Self-powered 3.6V power supply |
| Working temperature | -20~60℃ |
| Accuracy | 0.5% (for LD300, LD300-S)
1.5% (for LD300-P) |
| Conductivity of the measured medium | ≧20µs/cm |
| Network function | HART , MODBUS, GPRS, PROFIBUS optional |
| IP rating | IP65 standard
IP 67, IP68 by customized for the transmitter of the separated versions only |
FAQ
1. What is an electromagnetic water flow meter and how does it work?
An electromagnetic water flow meter (or magnetic water meter) uses Faraday’s law of electromagnetic induction to measure the flow rate of conductive liquids. When fluid passes through the meter’s magnetic field, it induces a voltage proportional to the flow velocity, which is then converted into a flow rate.
2. Is the LD300 suitable for wastewater applications?
Yes. The LD300 functions effectively as a wastewater flow meter, handling sewage, sludge, and other contaminated liquids. Its non-intrusive design with no moving parts ensures long-lasting, low-maintenance performance in demanding environments.
3. Can the LD300 be used for potable water or drinking water systems?
Absolutely. The LD300 is ideal for potable water flow meter applications. It provides hygienic, accurate flow measurements without contaminating the fluid, making it suitable for drinking water and municipal water supply networks.
4. What pipe sizes are supported by the LD300 electromagnetic flow meter?
The LD300 supports a wide range of pipe sizes, from DN6 to DN3000 (for integrated and split types), and DN100 to DN3000 (for insertion types). It’s suitable for both small-scale and large-scale industrial flow monitoring.
5. What installation types are available for the LD300 magnetic flow meter?
This insertion magnetic flow meter is available in three versions:
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Integrated type (compact unit)
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Split type (separate transmitter and sensor)
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Insertion type (cost-effective for large pipe diameters)
6. Does the LD300 provide digital communication?
Yes, it supports several digital communication protocols including RS485, HART, and MODBUS, enabling seamless integration into smart water flow meter and industrial control systems.
7. Is this flow meter suitable for agricultural irrigation systems?
Yes, the LD300 is widely used in agriculture irrigation. It works as a smart water flow sensor to help monitor and optimize water distribution in farms, greenhouses, and irrigation networks.
8. What is the accuracy of the LD300 electromagnetic flow meter?
The standard accuracy of the LD300 is ±0.5% for the integrated and split types, and ±1.5% for the insertion type, making it a trusted water usage meter for critical flow measurement tasks.
9. Can the LD300 be used in explosive environments?
Yes, optional explosion-proof versions are available upon request, making the LD300 suitable for hazardous industrial settings where safety is a priority.
10. Does the LD300 work with low-conductivity fluids?
The LD300 requires a minimum conductivity of 20 µS/cm. It is designed for conductive liquids only, and not suitable for non-conductive fluids such as pure oils or distilled water.
Datasheet
LD300 Electromagnetic Water Flow Meter Datasheet
