ABB-Electromagnetic flowmeter ProcessMaster FEP500
Overview
The ABB ProcessMaster FEP500 is an electromagnetic flowmeter engineered for accurate, general-purpose process flow measurement of conductive liquids across nominal diameters from DN 3 to DN 2000 (1/10 inch to 80 inch). It represents the higher-accuracy tier of ABB’s ProcessMaster line for conventional process duty, distinct from the FSM4000 (see related product), which is ABB’s robust, heavy-duty electromagnetic flowmeter built specifically for high-solids, pulp, and pulsating flow applications the FEP500 is not targeted at, and it sits above the entry-level FEP300 with tighter accuracy, dual measuring ranges, and more advanced diagnostic and batching functions.
As the official authorized partner and exclusive regional representative for ABB, Seven Star LLC proudly supplies the ProcessMaster FEP500 across Oman and the GCC, sizing and configuring the meter for water, wastewater, chemical, and general process applications where standard-duty electromagnetic measurement is the correct fit, and backing every installation with genuine ABB hardware, calibration documentation, and local technical support.
Operating Principle
The FEP500 operates on Faraday’s law of electromagnetic induction: as a conductive fluid passes through a magnetic field generated across the flow tube, it induces a voltage proportional to the fluid’s velocity. Two measuring electrodes in contact with the fluid detect this voltage, which the meter converts directly into a volumetric flow rate, with flow ranges adjustable between 0.02x and 2x the nominal QmaxDN value for the selected line size.
Because the measurement depends only on fluid velocity and conductivity rather than density, viscosity, or pressure, electromagnetic flowmeters like the FEP500 are largely unaffected by these variables within their conductivity threshold, giving stable readings across a wide range of process liquids without the pressure loss a mechanical or DP-based meter would introduce. The FEP500 is available with a standard accuracy of ±0.3% of measured value (DN 3-800) or an optional enhanced accuracy of ±0.2% of measured value (DN 10-800), giving engineers the flexibility to specify tighter measurement performance where custody-transfer-grade precision or tight mass-balance reconciliation is required.
Engineering Design of the ProcessMaster FEP500
The flow tube liner is available in hard rubber, soft rubber, PTFE, PFA, ETFE, and ceramic carbide, allowing the meter to be matched to the process fluid’s chemistry, abrasiveness, and temperature, with medium temperatures supported from -25°C to 180°C depending on liner selection. Electrode material options span standard stainless steel through to Hastelloy B, Hastelloy C, platinum-iridium, tantalum, titanium, and tungsten carbide, covering everything from mildly corrosive water streams to aggressive chemical and abrasive slurry service. Process connections conform to DIN 2501/EN 1092-1, ASME B16.5/B16.47, and JIS 10K standards, with pressure ratings from PN 10 to PN 100, and the meter carries ATEX/IECEx Zone 1, 2, 21, 22 and FM/cFM Class 1 Division 1 and Division 2 certifications for installation in hazardous, classified process areas.
The FEP500 supports HART communication as standard, with PROFIBUS PA and FOUNDATION Fieldbus available for digital process control integration, and ABB’s ProcessMaster platform includes empty-pipe detection and diagnostic self-monitoring, helping operators catch measurement anomalies from electrode coating or liner damage before they affect process control decisions. The transmitter electronics operate across an ambient temperature range of -20°C to 60°C in standard configuration, or -40°C to 60°C in the extended-range option, suitable for both the Gulf’s high ambient temperatures and cold-storage or refrigerated process lines.
Key Features
The ProcessMaster FEP500 combines the reliability of ABB’s established electromagnetic measurement platform with the accuracy and diagnostic depth needed for demanding process duty.
- No moving parts and no flow obstruction, so the meter introduces no meaningful pressure drop across the line.
- Measurement accuracy of ±0.3% standard, or ±0.2% in the optional enhanced-accuracy configuration.
- Measurement unaffected by fluid density, viscosity, or pressure within the meter’s conductivity threshold.
- HART communication standard, with PROFIBUS PA and FOUNDATION Fieldbus available for fieldbus integration.
- Empty-pipe detection and onboard diagnostics that flag electrode coating or liner damage before they affect readings.
- Liner and electrode material options matched to process fluid chemistry, abrasiveness, and temperature.
- ATEX/IECEx and FM/cFM certification for installation in hazardous, classified process areas.
- Line sizes from DN 3 to DN 2000, covering everything from small instrumentation lines to large-bore process mains.
Industrial Applications
The ProcessMaster FEP500 is used across water treatment, general chemical processing, food and beverage, and standard industrial process lines in Muscat, Sohar, Salalah, and the wider GCC wherever conductive liquid flow measurement is required without the high-solids or pulsating-flow demands that call for the heavier-duty FSM4000. Its wide liner and electrode material selection makes it equally suitable for potable water distribution, treated wastewater monitoring, and moderately corrosive chemical dosing lines across the region’s municipal and industrial facilities.
As the officially authorized partner for ABB, Seven Star LLC distributes the FEP500 to engineering, procurement, and plant operations teams across Oman’s industrial zones, positioning it for standard process conditions and reserving the FSM4000 (see related product) for pulp, high-solids-content, or pulsating flow service where its wider size range and more robust construction are actually needed. The meter’s ATEX and FM hazardous-area certifications also make it a suitable fit for classified areas within the Sohar and Salalah petrochemical and refining complexes.
Technical Specifications
The table below summarizes the ProcessMaster FEP500’s core specifications as supplied by Seven Star LLC.
| Parameter | Specification |
|---|---|
| Model | ABB ProcessMaster FEP500 |
| Technology | Electromagnetic (Faraday’s law induction) |
| Line size range | DN 3 to DN 2000 (1/10 inch to 80 inch) |
| Accuracy | ±0.3% of measured value standard; ±0.2% optional (DN 10-800) |
| Liner materials | Hard rubber, soft rubber, PTFE, PFA, ETFE, ceramic carbide |
| Electrode materials | Stainless steel standard; Hastelloy B/C, platinum-iridium, tantalum, titanium, tungsten carbide optional |
| Process connections | DIN 2501/EN 1092-1, ASME B16.5/B16.47, JIS 10K; PN 10 to PN 100 |
| Medium temperature | -25°C to 180°C (liner dependent) |
| Ambient temperature | -20°C to 60°C standard; -40°C to 60°C extended |
| Communication | HART standard; PROFIBUS PA, FOUNDATION Fieldbus optional |
| Certifications | ATEX/IECEx Zone 1, 2, 21, 22; FM/cFM Class 1 Div 1, Div 2 |
| Diagnostics | Empty-pipe detection, self-monitoring |
Request a Quote for ABB-Electromagnetic flowmeter ProcessMaster FEP500
Contact Seven Star LLC to submit a formal RFQ for the ABB ProcessMaster FEP500 electromagnetic flowmeter, request the full technical datasheet, or check regional warehouse stock across Oman and the GCC. As the authorized partner for ABB in Oman and the GCC, Seven Star LLC’s instrumentation division can help size the correct liner, electrode, and communication configuration for your process line and provide full calibration and certification documentation with every order.
Related Products
ABB is one of the world’s leading technology companies in electrification and automation, recognized for its commitment to innovation, reliability, and energy efficiency. With a history spanning more than a century, ABB delivers high-performance products and systems that help industries operate more intelligently and sustainably.
The company’s expertise covers a wide range of fields including power distribution, process automation, robotics, motion control, and digital solutions for smart manufacturing. ABB’s products are designed to enhance productivity, safety, and operational efficiency while reducing energy consumption and environmental impact.
Seven Star LLC supplies a complete selection of genuine ABB products, including industrial drives, PLCs, contactors, sensors, relays, and automation components, serving clients across oil & gas, energy, marine, and manufacturing sectors.
By combining ABB’s advanced engineering with Seven Star LLC’s trusted sourcing and support, customers gain access to reliable, future-ready industrial solutions built to meet the most demanding standards of modern industries.
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