Specification
Product Overview
The Electromagnetic Flowmeter NM200 Series is composed of a sensor and a converter and operates based on Faraday’s Law of Electromagnetic Induction. It is designed for measuring the flow rate of conductive liquids and conductive two-phase media.
The measured medium should generally have a conductivity greater than 5 μS/cm (the conductivity of tap water is typically about 100–500 μS/cm). The NM200 is suitable for measuring acid solutions, alkali solutions, salt solutions, pulp, slurry, and other conductive media, provided that the medium does not contain large amounts of ferromagnetic substances or excessive air bubbles.
Working Principle
The Electromagnetic Flowmeter NM200 Series measures flow according to Faraday’s Law of Electromagnetic Induction.
When a conductive liquid passes through the magnetic field generated inside the sensor, an induced voltage proportional to the flow velocity is generated. The converter processes this electrical signal and converts it into flow data for display and output.
Product Features
- Measurement is not affected by changes in fluid density, viscosity, temperature, pressure, or conductivity.
- Full-bore sensor design without flow obstruction, resulting in no pressure loss and low straight-pipe installation requirements.
- Optional grounding electrode for improved instrument grounding.
- Supports forward and reverse bidirectional flow measurement.
- LCD backlight display for clear reading in both bright sunlight and low-light environments.
- Simultaneously displays flow percentage, instantaneous flow rate, and totalized flow.
- Integrated version supports display rotation of up to 90° for improved visibility after installation.
- Built-in functions include:
- Self-diagnostic alarm output
- Empty pipe detection alarm
- High and low flow alarm output
- Two-stage flow output
Dimensional drawing (mm)
Applications
The the Electromagnetic Flowmeter NM200 is widely used in:
- Petroleum industry
- Chemical industry
- Metallurgy
- Textile industry
- Paper manufacturing
- Environmental protection
- Food industry
- Municipal engineering
- Water conservancy projects
- Conductive liquid flow measurement applications
Technical Specifications
Measurement Specifications
| Parameter | Specification |
|---|---|
| Nominal Diameter | DN10 mm – DN1000 mm |
| Measuring Medium | Conductive liquids, slurries |
| Minimum Conductivity | ≥ 5 μS/cm |
| Accuracy | ±0.5% of reading, optional ±0.3% or ±0.2% |
| Measuring Range Ratio | 1500:1 |
| Flow Velocity Range | 0.1 – <15 m/s |
Electrode Materials
- Stainless Steel 316L
- Platinum-Iridium
- Hastelloy
- Tantalum
- Titanium
Lining Materials
- Chloroprene Rubber
- PTFE (Polytetrafluoroethylene)
- FEP (Fluorinated Ethylene Propylene)
- Polyurethane Rubber
Mechanical Specifications
| Parameter | Specification |
|---|---|
| Structure | Integral Type / Remote Type |
| Housing Material | Carbon Steel (Standard), Stainless Steel (Optional) |
| Protection Rating | IP65 / IP68 |
Operating Conditions
| Parameter | Specification |
|---|---|
| Medium Temperature | -40°C to +180°C (depending on lining material) |
| Ambient Temperature | -25°C to +60°C |
| Relative Humidity | 5%–100% RH |
Frequently Asked Questions (FAQ)
What media can the Electromagnetic Flowmeter NM200 measure?
It is suitable for conductive liquids and conductive slurries, including acid, alkali, salt solutions, pulp, and slurry. The medium should generally have a conductivity greater than 5 μS/cm.
Is the measurement affected by fluid properties?
According to the product specifications, measurement is not affected by changes in density, viscosity, temperature, pressure, or conductivity.
Does the NM200 support bidirectional flow measurement?
Yes. The flowmeter supports both forward and reverse flow measurement.
What installation types are available?
The NM200 is available in both integral and remote (split) versions.
What protection ratings are available?
The housing protection rating is available in IP65 and IP68.
Why Choose the Electromagnetic Flowmeter NM200 ?
The NM200 Series is suitable for conductive liquid flow measurement in a wide range of industrial applications.
Reasons to choose the NM200 include:
- Based on Faraday’s electromagnetic induction principle.
- Suitable for a variety of conductive liquids and slurries.
- Measurement performance is independent of fluid density, viscosity, pressure, and temperature.
- Supports bidirectional flow measurement.
- Available in integral and remote installation configurations.
- Multiple electrode and lining materials are available to match different process media.
- LCD display with multiple flow parameters shown simultaneously.
- Built-in diagnostic and alarm functions for convenient system monitoring.
Typical Application
Conductive Liquid Flow Measurement in Industrial Pipelines
In industrial process systems, accurate monitoring of conductive liquid flow is essential for process control and production management. The NOIKE-AH Electromagnetic Flowmeter NM200 measures conductive liquids using electromagnetic induction technology and can be installed in process pipelines for continuous flow monitoring. With multiple electrode and lining material options, as well as bidirectional flow measurement and diagnostic functions, it is suitable for conductive liquid measurement across a wide range of industrial applications.
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Talk With Us
- [email protected]
- +86 180 5512 0225
- +86(0551)-65501008
- Address: 206, Block B, No. 2 Tianda Road, High-tech Zone, Hefei City, Anhui Province, China
- We will respond to you within five minutes.
