KROHNE OPTIFLUX 2000 Electromagnetic Flowmeter
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Measurement Principle: Continuous bidirectional electromagnetic volumetric flow calculation according to Faraday’s law of induction
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Nominal Line Diameters: Wide pipeline coverage ranging from DN 25 up to DN 3000 (1″ to 120″)
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Measurement Accuracy: Superior measuring accuracy up to ±0.2% of measured value ± 1 mm/s (paired with IFC 300 / IFC 100 converters)
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Lining Materials: Drinking water approved hard rubber, polypropylene (PP), or soft rubber liners
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Sensing Electrodes: Wetted Hastelloy C4, titanium, or stainless steel electrodes with integrated virtual reference capability
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Submersible Capability: Standard IP66/67 enclosure with factory-sealed IP68 (NEMA 6P) rating for continuous sub-surface flooding or underground direct burial
Description
The OPTIFLUX 2000 Electromagnetic Flowmeter delivers continuous, high-accuracy volumetric liquid flow measurement engineered specifically for raw water extraction, municipal drinking distribution networks, wastewater treatment facilities, and agricultural irrigation infrastructure.
Advanced Water Flow Measurement with the OPTIFLUX 2000 Electromagnetic Flowmeter
Operating under Faraday’s law of electromagnetic induction, the OPTIFLUX 2000 Electromagnetic Flowmeter measures conductive liquids completely unaffected by fluid viscosity, density, operating pressure, temperature, or suspended solids. The unobstructed full-bore flow tube eliminates internal mechanical moving parts, preventing line restriction, head loss, and hydraulic energy waste across high-volume pumping skids.
Featuring robust flanged construction and advanced coil winding geometry, the sensor creates a homogeneous magnetic field across the entire tube cross-section. Combined with an optional virtual reference grounding circuit, the unit measures reliably in electrically isolated pipelines without requiring costly grounding rings or cathodic protection interferences.
Key Features and Engineering Advantages
- Unrestricted Full-Bore Sensor: Straight-through flow conduit prevents hydraulic pressure drop and eliminates clogging risks in solids-laden sewage lines.
- Subsoil Direct Burial Design: Fully welded, potted IP68 (NEMA 6P) construction with specialized subsoil coating allows permanent underground trench burial without metering chambers.
- Virtual Reference Technology: Enables accurate flow sensing in non-conductive or lined pipes without requiring grounding rings or additional wetted hardware.
- Drinking Water Compliant Liners: Certified under global potable water health standards including WRAS, ACS, NSF/ANSI 61, and DVGW W270.
- Long-Term Stability: Solid rectangular coil construction and vacuum-resistant liners prevent liner deformation during sudden downstream valve closures.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Instrument Model | KROHNE OPTIFLUX 2000 Electromagnetic Flowmeter |
| Nominal Diameter Range | DN 25 to DN 3000 (1″ to 120″) |
| Measuring Principle | Electromagnetic induction (bidirectional volume flow) |
| Measuring Accuracy | Up to ±0.2% of measured value ± 1 mm/s |
| Liner Formulations | Hard Rubber (-5°C to +80°C), Polypropylene (-5°C to +90°C), Soft Rubber |
| Electrode Metallurgy | Hastelloy C4 standard; optional Titanium, Stainless Steel, Tantalum |
| Process Flange Standards | EN 1092-1 (PN 6–40), ASME B16.5 (Class 150/300), JIS, AS4087 |
| Enclosure Protection | IP66/67 standard; IP68 (NEMA 6P) fully potted for continuous submersion |
| Medium Conductivity | Minimum 20 μS/cm (water media min. 5 μS/cm with IFC 300) |
Industrial Applications and Process Integration
The OPTIFLUX 2000 Electromagnetic Flowmeter meets the operational requirements of municipal water systems, utility balancing grids, and wastewater processing plants:
- Municipal drinking water transmission mains, district metering areas (DMA), and revenue fiscal metering.
- Raw river water intake, desalination feed manifolds, and groundwater well abstraction networks.
- Wastewater treatment plants, return activated sludge (RAS) loops, and treated effluent outfall pipes.
- Circulating cooling water loops, commercial chiller loops, and large-scale agricultural irrigation mains.
Frequently Asked Questions
Which signal converters pair with the OPTIFLUX 2000 flow sensor?
The flow sensor pairs modularly with KROHNE IFC series converters, including the field-mount IFC 050 for cost-sensitive basic monitoring, the IFC 100 for versatile industrial monitoring, or the high-end IFC 300 for extensive diagnostics and custody transfer operations.
Can the meter be buried directly underground without a concrete vault?
Yes. In remote subsoil configurations equipped with IP68 junction boxes and multi-layer corrosion-resistant external paint coatings, the sensor can be buried directly in the soil trench, lowering civil construction overhead.
How does Virtual Reference technology reduce installation cost?
Virtual Reference eliminates the requirement for conductive grounding rings or reference electrodes in lined or plastic pipelines. The converter software establishes an artificial electrical reference, protecting signals against stray currents and reducing hardware expenses.
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