Description
ABB WaterMaster HART Electromagnetic Flowmeter
Sensor: FEW321300K1S1S2B1A1A0A2A1A1 | Transmitter: MJFA9901 HW04 | FEX100 Series
Product Overview
The genuine ABB WaterMaster FEX100 Electromagnetic Flowmeter System is an elite, high-accuracy liquid volumetric measurement infrastructure cluster engineered for commercial water utilities and demanding industrial process grids. This high-reliability assembly couples a rugged, advanced electromagnetic flow sensor tube (Model FEW321300K1S1S2B1A1A0A2A1A1) with a precision signal converter transmitter module (Part MJFA9901 HW04). Operating on Faraday’s Law of electromagnetic induction, it calculates fluid velocity independent of pressure, density, or temperature. Outfitted with advanced internal logic and full HART protocol serial communication, it provides stable telemetry registers, simple configuration steps, and long-term durability in municipal processing, effluent water treatment plants, and raw facility inflow monitoring networks.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Brand / Manufacturer | ABB (Genuine Process Automation Hardware) |
| System Family Series | WaterMaster FEX100 Series |
| Flow Sensor Part Number | FEW321300K1S1S2B1A1A0A2A1A1 |
| Transmitter Part Number | MJFA9901 HW04 |
| Measurement Type | Electromagnetic Multi-Parameter Flow Metering (Magmeter) |
| Network Communication | HART Protocol Compatibility (Superimposed Serial Telemetry) |
| Transmitter Housing Style | Heavy-Duty Industrial Field Enclosure with Glass Display Display Window |
| Primary Applications | Municipal Water Utilities, Industrial Inflow Monitoring, Waste Effluent Treatment, Closed-Loop Chemical Piping |
Key Features & Operational Benefits
- Faraday Induction Accuracy: Non-intrusive internal tube liner geometry ensures no pressure drops across the line and eliminates moving parts that wear or clog.
- Robust HART Integration: Provides digital multi-variable tracking overlaid on standard 4-20mA current loops for streamlined connection to SCADA or DCS networks.
- Advanced Diagnostic Sub-Systems: Onboard logic blocks perform continuous sensor self-checking and electrode cleaning diagnostic cycles to maintain peak calibration stability.
- Industrial Field Durability: The reinforced external sensor shell and securely sealed transmitter case are engineered to resist ambient facility moisture, vibration, and thermal fluctuations.

