DN300

Working Principle

Based on Faraday’s Law of Electromagnetic Induction, it measures the induced electromotive force generated by conductive fluids in an applied magnetic field to calculate flow velocity and volume. Suitable for liquids with conductivity ≥5 μS/cm.

 

Applications

Water Treatment: Municipal water supply, wastewater treatment

Chemical Industry: Acids, alkalis, salt solutions

Metallurgy, Food, Pharmaceuticals: Slurries, mineral/paper pulp

Energy Measurement: Trade custody transfer, time-based billing

 

Structure

Sensor: Magnetic circuit system, measuring tube, electrodes, liner.

Converter: Signal processing module, display & communication module.

Connection: Compact Type-Direct flange mounting or Remote Type-Separate sensor/converter with bracket installation.

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ADVANTAGE

No Obstruction: Zero pressure loss, low maintenance.

Linear Measurement: Induced voltage proportional to flow velocity; high accuracy (0.5%~1.0%).

Corrosion Resistance: Customizable liners (rubber, PTFE) and electrodes (316L, titanium, tantalum).

Bidirectional Flow: Supports forward/reverse measurement.

Smart Functions: Empty pipe alarm, power-loss data recovery, remote communication (HART, RS485).

 

  1. Basic Specifications

Accuracy: 0.3%, 0.5%, or 1.0% (model-dependent).

Flow Velocity Range: 0.1–15 m/s (extended models: 0.3–15 m/s).

Minimum Conductivity: ≥5 μS/cm.

Nominal Diameter: DN10–DN3000 (customizable).

 

  1. Output Signals

Analog: 4–20 mA (load resistance ≤750Ω).

Digital: Frequency: 1–2000 Hz, Pulse: 0–100 pulses/sec

Protocols: HART, MODBUS RS485, RS232.

 

  1. Operating Conditions

Liner Temperature Range:

Standard: -20°C to +90°C

High-Temp (e.g., PTFE): -30°C to +180°C

Ambient Temperature: -25°C to +60°C (compact type).

Pressure Rating:  DN10–DN65: ≤2.5 MPa, DN200–DN1200: ≤1.0 MPa

 

  1. Power Supply

AC: 185–250V, 45–63 Hz

DC: 20–30V

Optional: Lithium battery.

Power Consumption: ≤20W.

 

  1. Sensor Dimensions & Installation

Flange-mounted Sensors (DN200–DN600):

Pressure Ratings: 1.0 MPa / 1.6 MPa

 

 

External Dimensions & Weight Flange Dimensions (Standard: GB/T9119)
Nominal Diameter  DN (mm)  

L

 

W

 

H

Pressure: 1.6 MPa Pressure: 1.0 MPa
D d₁ d₀ n b D d₁ d₀ n b
200 350 362 45 340 295 22 12 26 340 295 22 8 24
250 450 412 50 405 355 26 12 28 395 350 22 12 26
300 500 472 60 460 410 26 12 32 445 400 22 12 28
350 500 522 145 520 470 26 16 35 505 460 22 16 30
400 500 572 180 580 525 30 16 38 565 515 26 16 32
450 550 626 215 640 585 30 20 42 615 565 26 20 35
500 550 676 245 715 650 33 20 46 670 620 26 20 38
600 600 776 335 840 770 36 20 52 780 725 30 20 42

 

 

 

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