描述
Promag S Electromagnetic Flowmeter: High-Performance Volumetric Metering for Abrasive and Corrosive Slurries
The Promag S Electromagnetic Flowmeter (powered by the high-performance Promag 55S transmitter) is an industrial-grade, full-bore inline measuring device engineered specifically for the continuous and reliable volumetric flow metering of inhomogeneous, highly abrasive, and chemically corrosive fluids. Operating on Faraday’s law of electromagnetic induction, this specialized industrial flow sensor features industry-optimized liners and specialized measuring electrodes to ensure superb signal stability, delivering high-precision accuracy even in demanding applications with a solids content of up to 80% by weight.
🛑 Critical Processing Bottlenecks Solved by Promag S
- Premature Sensor Erosion: Traditional mechanical or thin-walled flow indicators suffer rapid mechanical wear when exposed to mining tailings or lime milk. The Promag S eliminates moving parts, dramatically extending device lifespan.
- Signal Instability from High Noise: Dense slurries typically create severe electrical noise, blinding standard sensors. The intensified coil system of Promag 55S provides unique signal processing to isolate the true flow volume.
- Frequent Maintenance Downtime: Sticky fluids coat sensing elements, forcing plant shutdowns for manual cleaning. Promag S features an integrated electrode cleaning system to guarantee continuous, maintenance-free operations.
- Pumping Energy Losses: Intrusive flowmeters cause localized pressure drops, inflating electricity costs. As a zero pressure drop flowmeter, the full-bore sensor design optimizes pumping efficiency across the entire piping utility.
📊 Promag S Technical Specifications & Core Factory Parameters
Below is the verified, high-density technical parameter framework required for accurate distributed control system (DCS) integration and engineering procurement.
| Specification Item | Technical Data & Industrial Standards |
|---|---|
| Measuring Principle | Electromagnetic induction (Bidirectional volume flow, electrical conductivity, mass flow calculation) |
| Nominal Diameter Range | DN 15 to DN 600 (1/2″ to 24″) for standard industrial pipelines |
| Maximum Measurement Error | Standard: ±0.5% o.r. ± 1 mm/s | Premium Factory Option: ±0.2% o.r. ± 2 mm/s |
| Volumetric Measuring Range | 0.06 dm³/min to 600 m³/h (0.015 gal/min to 2650 gal/min) |
| Process Pressure Ratings | PN 40, Class 300, JIS 20K |
| Medium Temperature Range | -20 to +180 °C (-4 to +356 °F) optimized based on lining selection |
| Wetted Lining Materials | Polyurethane, Hard rubber, PFA, PTFE, Natural rubber |
| Electrode Metallurgy | 1.4435/304L Stainless Steel, Alloy C-22, Tantalum, Platinum, Duplex 1.4465, Titanium, Tungsten carbide |
| Signal Outputs & Inputs | 4…20mA (Active/Passive), Pulse/Frequency/Switch output, 2x Status output | Current input |
| Digital Fieldbus Protocols | HART, PROFIBUS DP/PA, FOUNDATION Fieldbus |
| Enclosure Protection Class | Standard: IP 67 (Type 4X enclosure) | Optional Remote Version: IP 68 (Type 6P enclosure) |
| Global Safety Approvals | ATEX, FM, CSA, UK Ex, CE, EAC, PED, CRN |
| Hygienic Credentials | Drinking Water Compliance: ACS, KTW-BWGL, NSF 61, WRAS BS 6920 |
🏗️ Industrial Target Fields & Media Application Compatibility
The robust construction of the Promag S Electromagnetic Flowmeter makes it the definitive process safeguard across heavy industrial environments:
- Mining, Primaries & Metals Industry: Excellently handles highly abrasive mineral slurries, heavy tailings line monitoring, sand-water mixtures, and high-density ore suspensions.
- Wastewater & Sewage Treatment Utilities: Ideal for raw sewage, inhomogeneous digested sludge, chemical coagulation dosing, and lime milk delivery feeds.
- Pulp & Paper Manufacturing: Designed for dense stock flows, black liquor circulation, corrosive bleaching chemicals, and thick fibrous pulp suspensions.
- Chemical Processing Infrastructure: Universally compatible with aggressive inorganic acids, strong alkaline solutions, and highly corrosive chemical liquids.
💎 Key Commercial Value Propositions & Engineering Advantages
1. Enhanced Signal Processing for Fluctuating Slurries
Featuring a uniquely intensified coil system, the Promag S counteracts the electrical noise generated by passing solid particulates. This guarantees superb signal stability, enabling operators to achieve tight loop control without erratic signal drops.
2. Real-Time Diagnostics & Integrated Solids Measurement
The intelligent Promag 55S transmitter does not just track liquid speed; it actively calculates the total solids content within the medium. This dual-action diagnostic reduction eliminates the cost of buying separate mass meters or nuclear density sensors.
3. Automatic Data Recovery via Smart Storage Modules
Human commissioning errors are completely negated. In the event of field maintenance or transmitter module replacement, all factory calibration constants and site parameters are automatically restored, reducing plant recovery time to minutes.
4. Advanced Enclosure Safety & Human-Machine Interface (HMI)
The powder-coated die-cast aluminum or coated AlSi10Mg sensor armor ensures resilience against sea-salt or acid-vapor fields. Local operators can easily manage parameters through the 4-line backlit display using optical sensor touch control keys, preventing internal electronics contamination during damp field operation.
📸 High-Resolution System Layout & Component Focus


Looking for a smaller utility monitor? If your pipeline requires low-flow monitoring rather than heavy slurry diagnostics, browse our Compact Electromagnetic Flow Switch (Magphant DTI200 Series) for general water processing lines.
❓ Frequently Asked Questions (FAQ)
Q1: Can the Promag S electromagnetic flowmeter handle highly corrosive chemicals and drinking water?
A: Yes, depending on configuration. Specifying a PFA or PTFE liner paired with Platinum or Tantalum electrodes allows the Promag S to process aggressive acids. For clean utilities, it complies with drinking water standards including NSF 61 and WRAS BS 6920.
Q2: What are the recommended piping and installation requirements for abrasive slurries?
A: To achieve optimal measurement stability and mitigate sediment accumulation on the measuring electrodes, it is highly recommended to install the flow sensor in a vertically upward flowing pipeline segment.
Q3: Does the Promag 55S transmitter support industrial digital bus integration?
A: Yes, it supports standard 4…20mA analog current outputs integrated alongside native industrial fieldbus protocols, including HART, PROFIBUS DP/PA, and FOUNDATION Fieldbus.


