Brand: ABB

ABB Electromagnetic flowmeter ProcessMaster FEP500

Name: ABB ProcessMaster FEP500 Electromagnetic Flowmeter – Manual
Brand: ABB

Description

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.

Backed by manufacturer datasheet documentation, 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.

Working closely with plant engineers in the region, 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 current availability and lead time across Oman and the GCC. With fast quotation turnaround and technical support, 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.

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About brand

ABB is the Swiss-Swedish engineering group for electrification and automation: low voltage drives, motors, circuit breakers and motor control, process instruments and analysers, control systems and robots. It was formed on 5 January 1988 by the merger of two older companies. ASEA was founded in Västerås, Sweden, in 1883 by Ludvig Fredholm to make electric lighting and generators. BBC Brown Boveri was founded in Baden near Zurich in 1891 by Charles E. L. Brown and Walter Boveri. ABB Ltd is incorporated in Switzerland, headquartered in Zurich and listed on the SIX Swiss Exchange and Nasdaq Stockholm.

ABB company profile

Formed	5 January 1988, by the merger of ASEA (Sweden) and BBC Brown Boveri (Switzerland), each holding 50%
ASEA	Founded 1883 in Västerås, Sweden, by Ludvig Fredholm; first products electric lighting and generators
Brown, Boveri & Cie	Founded 1891 in Baden, Switzerland, by Charles E. L. Brown and Walter Boveri
Headquarters	Zurich, Switzerland; ABB Ltd became the group holding company in 1999
Ownership	Public company listed on SIX Swiss Exchange and Nasdaq Stockholm
Brands in the group	Baldor (US motors, acquired 2011), B&R (machine automation, acquired 2017), K-TEK level instruments, Endura and Navigator analysers, SACE breakers
Product families	Low and medium voltage drives (ACS series), motors, SACE Tmax and Emax breakers, contactors and soft starters, flow, pressure, temperature and level instruments, liquid and gas analysers, Contrac actuators, AC500 PLCs, Ability System 800xA and S800 I/O, protection relays, robots

Milestones

1883: ASEA is founded in Västerås, Sweden.
1891: Brown, Boveri & Cie is founded in Baden, Switzerland.
1987–1988: The merger is announced on 10 August 1987; ABB Asea Brown Boveri starts operating on 5 January 1988.
1999: ABB Ltd, incorporated in Switzerland, becomes the single holding company of the group.
2011 and 2017: Baldor Electric and B&R join ABB.
2020: ABB sells its power grids business to Hitachi, focusing on electrification, motion, process and machine automation.

Choosing an ABB drive

ABB's ACS drive codes are easy to read once you know the pattern. In ACS580-01-046A-4, "ACS580" is the drive family, "01" means a wall-mounted single drive, "046A" is the rated output current (about 46 A) and "-4" means a 380–480 V supply. The family is chosen by application: ACS355 for compact machinery, ACS310 for simple pumps and fans, ACS580 as the general-purpose drive, ACQ580 for water and wastewater with pump functions such as pipe fill and dry-run protection, and ACS880 for heavy industrial duty with direct torque control. Size the drive on the motor's full-load current, not only its kW rating, and allow derating for the high ambient temperatures common in Gulf electrical rooms.

Where ABB products are used

In Oman and the GCC, ABB drives and motors run pumps, fans and compressors in water and wastewater plants, district cooling, oil and gas and industry. ABB flowmeters, level instruments and analysers are used in water utilities, power and desalination plants and refineries, and SACE breakers protect switchboards in buildings and plants.

ABB products we list

Family	Examples
AC drives	ACS580, ACS580-01-046A-4, ACQ580, ACS355, ACS310, ACS880-01, FEN-31 encoder module
Breakers, motor control and protection	SACE Tmax XT, XT3N 250, SACE Emax 2, AF09 contactor, PSR soft starter, REM615 relay
Flow measurement	ProcessMaster FEP300, AquaMaster4, CoriolisMaster FCB430, VortexMaster FSV430, SwirlMaster FSS430, OriMaster FPD500
Pressure, temperature and level	266DRH, 267CS multivariable, TTH300, K-TEK AT100, LMT200, MT5000 GWR, KM26 gauge
Analysers	Endura AZ20, AK100 hydrogen purity, Navigator AW641 silica, AW402 chlorine, AWT210
Control systems and actuators	AC500, AC500-S, S800 AI810, AC 800F SA 811F, Contrac RSD50, Contrac RHD4000

Ordering ABB products: what we need

Send the full type code from the nameplate (for example ACS580-01-046A-4 or 266DSH...) and, for spare parts, the ABB ID number (such as 3BSE008508R1 or 1SBL176001R3010). For drives, add the motor power and current and any option codes (+...). For instruments, send the complete order code, which sets range, materials and approvals. Baldor motors are listed on their own brand page.

Facts checked against ABB company filings and published histories of ASEA and Brown, Boveri & Cie, October 2026.

FAQ

Questions about the ABB Electromagnetic flowmeter ProcessMaster FEP500

Answers from our engineering team on installation, compatibility and integration.

01How does the FEP500 measure flow?

It uses electromagnetic induction: a conductive fluid moving through a magnetic field induces a voltage proportional to its velocity, which is detected by electrodes and converted to a flow rate.

02How does the FEP500 differ from the FSM4000?

The FEP500 is a standard-duty electromagnetic flowmeter for conventional process liquids, while the FSM4000 is ABB's robust, heavy-duty version built for high-solids, pulp, and pulsating flow applications.

03What communication protocols does the FEP500 support?

HART is supported as standard, with PROFIBUS PA and FOUNDATION Fieldbus available for digital process control integration.

04Does the FEP500 introduce pressure loss into the line?

No, it has no moving parts and no flow obstruction, so it introduces no meaningful pressure drop across the meter.

05Is Seven Star LLC an experienced supply partner for ABB products?

Yes, Seven Star LLC is a trusted ABB supplier supplying and sizing the ProcessMaster FEP500 across Oman and the GCC.