loading
| Availability: | |
|---|---|
| Quantity: | |
JC-090
JIECHUANG
Overview：
The intelligent electromagnetic flowmeter is a state-of-the-art, inductive instrument designed for measuring the volumetric flow of conductive liquids, following Faraday’s law of electromagnetic induction. With advanced sensor technology, this flowmeter delivers high-precision flow measurements for a variety of industries, including water treatment, chemical processing, food & beverage production, and wastewater management. By utilizing a pair of detecting electrodes, the flowmeter detects the induced electromotive force generated as conductive liquid passes through a magnetic field, providing reliable real-time flow data.
Applications:
This electromagnetic flowmeter is highly versatile, suited for corrosive fluids such as strong acids and alkalis, as well as liquid-solid suspensions like slurry and pulp. It is commonly used across industries including oil & gas, chemical processing, metallurgy, textiles, paper production, environmental protection, food processing, municipal management, and water resources management.
Key Features:
Compact Integration: Combines both sensor and transmitter in a single unit, simplifying installation in space-constrained environments and highly demanding industrial settings.
Precision Performance: Equipped with advanced electromagnetic technology, the flowmeter ensures accurate flow measurements for conductive liquids across a wide range of applications.
Robust Design: The flowmeter is engineered to withstand harsh industrial environments, including exposure to chemical agents, temperature variations, and abrasive materials.
User-Friendly Interface: Features a digital display for easy monitoring and customizable settings, allowing operators to optimize performance in real-time.
Maintenance-Free: Designed with no moving parts, this flowmeter guarantees long-term reliability with minimal upkeep, making it an ideal choice for industries with stringent operational demands.
Overview：
The split-type electromagnetic flowmeter consists of a separate sensor and transmitter, connected via cable. This configuration is particularly beneficial when the sensor needs to be placed in challenging or hazardous locations, such as underwater or in confined spaces, while the transmitter remains in a more accessible position.
Applications:
Ideal for use in chemical industries, high-temperature environments, and large pipeline networks, the split-type flowmeter provides flexibility while ensuring accurate and reliable measurements in aggressive liquid flows and large pipelines.
Key Features:
Flexible Deployment: Sensor installation in hard-to-reach areas, reducing the risk of damage and signal interference.
Enhanced Safety: The transmitter is safely isolated from extreme industrial conditions, ensuring reliable performance in challenging environments.
Versatile Use: This model is perfect for chemical, pharmaceutical, and municipal water treatment applications, where space constraints or hazardous environments pose challenges.
Overview：
The insertion-type electromagnetic flowmeter offers a practical solution for measuring flow in large pipelines, where cutting the pipe for installation is not feasible. Its non-invasive installation method reduces operational disruptions while offering real-time flow data.
Applications:
Used extensively in oil pipelines, slurry processing, wastewater treatment, and chemical fluid handling, the insertion-type flowmeter offers an ideal solution for measuring highly corrosive and abrasive fluids.
Key Features:
Easy Installation: The flowmeter is inserted into the pipe, eliminating the need for pipe modification, which is ideal for retrofit projects.
Low Pressure Drop: Due to the lack of moving parts, the insertion-type model causes minimal pressure loss and offers high flow efficiency.
Durable Build: Perfect for use in harsh chemical processing environments, offering consistent and reliable performance over extended periods.
Technical Parameters
Item | Performance / Parameter |
Nominal Diameter Series DN (mm) | DN10-3200, Insertion type ≥ DN200 |
Flow Direction | Forward, reverse, net flow |
Repeatability Error | ±0.1% of the measured value |
Accuracy | - Pipeline type: 0.2 grade, 0.5 grade, 1.0 grade (depending on diameter) |
Measured Medium Temperature | - Rubber lining: -20°C to +80°C |
Rated Working Pressure | - Pipeline type: |
Flow Measurement Range | Corresponds to a velocity range of 0.310m/s |
Ambient Temperature | - Sensor: -40°C to +80°C |
Communication Interface | RS232, RS485, HART |
Conductivity Range | Measured fluid conductivity ≥ 5μs/cm |
Output Current and Load Resistance | 4~20mA fully isolated, load resistance <750Ω |
Pulse Frequency | 0~5KHz (load resistance ≥ 3000Ω) |
Electrode Materials | Molybdenum stainless steel, titanium, tantalum, Hastelloy, platinum, or other special electrode materials |
Protection Grade | - Submersible type: IP68 |
Power Supply | AC220V 50Hz, DC24V |
Straight Pipe Length | Pipeline type: upstream ≥ 10DN, downstream ≥ 5DN |
Connection Method | - Pipeline type: GB9119-2000 standard flange <br> - Insertion type: Threaded connection, ball valve specifications: DN50 |
Explosion-proof Mark | ExdIIBT4 |
Relative Humidity | 5% to 95% RH |
Product Selection Guide for Electromagnetic Flowmeters
1. Range Determination:
1. (1) Importance of Selection: Proper selection of the flowmeter is crucial for its application. Incorrect selection and installation account for two-thirds of all instrument failures. Pay special attention to the operating conditions.
2. (2) Material Selection: Choose the lining and electrode materials based on the fluid to be measured, including its highest temperature, normal operating temperature, and lowest temperature.
3. (3) Pipe Diameter Selection: Select the pipe diameter based on the maximum flow rate, normal flow rate, and minimum flow rate.
4. (4) Range Appropriateness: The flowmeter range should be greater than the expected maximum flow rate. The normal flow rate should be slightly more than 50% of the flowmeter’s full scale.
5. (5) Maximum Working Pressure: Ensure the actual maximum working pressure is less than the rated working pressure of the flowmeter.
6. (6) Additional Features: Choose any additional functions and requirements as needed by the manufacturer’s production specifications.
7. (7) Economic Flow Rates:
1. For clean water, the optimal flow rate is 1.5-3 m/s.
2. For solutions prone to crystallization, a higher flow rate of 3-4 m/s is recommended to prevent adhesion and sedimentation through self-cleaning.
3. For abrasive fluids like slurry, a lower flow rate of 1.0-2 m/s is advisable to reduce wear on the lining and electrodes.
4. Actual application rarely exceeds a flow rate of 7 m/s, and 10 m/s is even rarer. For flow rates below 0.3 m/s, a reduction pipe should be used to increase the flow rate.
8. (8) Split Type Considerations:
1. The distance between the sensor and the transmitter should be as short as possible.
2. Excessively long cables are prone to signal interference due to distributed capacitance, generally limiting the distance to less than 30 meters.
Lining Material | Main Functions | Suitable Applications |
Chloroprene Rubber (Neoprene) | 1. Excellent wear resistance. | 1. Temperature: <80°C. 2. Media: General water, wastewater, slurry, and mineral slurry. |
Polyurethane Rubber | 1. Outstanding wear resistance. | 1. Temperature: <60°C. 2. Media: Neutral highly abrasive slurry, coal slurry, and mud. |
Polytetrafluoroethylene (PTFE) | 1. Most chemically stable material. | 1. Temperature: <150°C. |
Perfluoroalkoxy Alkane (PFA) | 1. Similar chemical stability and lubricity as PTFE. | 1. Temperature: <150°C. |
Fluorinated Ethylene Propylene (FEP) | 1. Lower temperature resistance compared to PTFE. | Media: Strongly corrosive media such as concentrated acids and alkalis, and sanitary media. |
The selection of electrode materials should be based on the corrosiveness and abrasiveness of the measured medium. For general media, consult relevant corrosion manuals to choose the appropriate electrode material. For mixed acid media, a coupon test should be performed.
Material | Corrosion Resistance | Applications |
316L Stainless Steel | 1. Resistant to nitric acid and sulfuric acid (below 5%) at room temperature. | Suitable for mildly corrosive environments with the mentioned chemicals. |
Hastelloy B (HB) | 1. Resistant to hydrochloric acid, sulfuric acid, hydrofluoric acid, and organic acids of all concentrations below their boiling points. | Ideal for non-oxidizing acid environments, including hydrochloric, sulfuric, and hydrofluoric acids. |
Hastelloy C (HC) | 1. Resistant to oxidizing acids such as nitric acid, mixed acids of rhodium and sulfuric acids, and oxidizing salts like seawater. | Best suited for environments with strong oxidizing agents. |
Titanium (Ti) | 1. Resistant to seawater, various chlorides and hypochlorites, oxidizing acids (including fuming nitric acid), organic acids, and alkalis. | Suitable for chloride-rich environments and oxidizing acids but should be avoided in pure reducing acids. |
Tantalum (Ta) | 1. Excellent resistance, comparable to glass. | Ideal for highly corrosive environments, including boiling hydrochloric and nitric acids, and sulfuric acid below 175°C. |
Platinum/Iridium Alloy | 1. Resistant to almost all chemical media. | Suitable for extremely corrosive environments, except those containing aqua regia and ammonium salts. |
Stainless Steel Coated with Tungsten Carbide | Used in non-corrosive media with strong abrasive properties. | Ideal for media with high abrasiveness but no significant corrosive effects. |
According to the national standard GB4208-84 and the International Electrotechnical Commission (IEC) standard IEC529-76, the protection levels of enclosures can be classified as follows:
IP Rating | Description | Applications |
IP65 | 1. Can withstand water jets from any direction. | Suitable for installations exposed to water jets, such as outdoor installations and cleaning operations. |
IP67 | 1. Can be fully immersed in water for a short period. | Suitable for environments where temporary submersion in water may occur, such as flood-prone areas. |
IP68 | 1. Can operate continuously underwater. | Ideal for installations continuously submerged, such as underwater pipelines or deep wells. |
1.IP68: Recommended for instruments installed below ground level or in flood-prone areas.
2.IP65: Suitable for instruments installed above ground level where exposure to direct water jets or rain is possible.
