ABB D674A905U01 Electromagnetic flowmeter head

Brand: ABB

Product Series: ProcessMaster FEP300 / HygienicMaster FEH300 / FET300 Transmitter Series

Model: D674A905U01 (Cartridge Board U-Low HART / Standard FET300)

Product Type: Electronic Transmitter Cartridge Module / Flowmeter Head Processing Board

ABB D674A905U01 Electromagnetic flowmeter head

Technical Parameters:

System Architecture: Electronic replacement transmitter cartridge board specifically engineered for ABB ProcessMaster (FEP300) and HygienicMaster (FEH300) electromagnetic flowmeter heads.

Communication Protocol: Digital HART 5 / HART 7 over 4-20 mA current loop (Low-power HART option) enabling standard digital configuration and diagnostic communication.

Flow Measurement Range & Accuracy: High-precision signal conversion supporting system measurement accuracies up to 0.4% or 0.2% of rate across wide turndown ratios.

Power Supply Input: Low-voltage power operation (24 V DC nominal / loop-powered transmitter supply) optimized for low power consumption.

Diagnostic Coverage: Continuous automated onboard diagnostics (SIL-compliant design) for detecting coil disruptions, electrode signal noise, pipe fill conditions, and wire fault states.

Signal Output Interfaces: Analog 4–20 mA current output combined with configurable digital pulse/frequency and status outputs.

Environmental Rating: Heavy-duty industrial design with protective circuit coating, engineered to withstand ambient temperatures ranging from -20°C to +60°C and high vibrational environments.

Mechanical Form Factor: Slide-in cartridge module design allowing field replacement and upgrading of transmitter electronics without removing the flow sensor body from the pipe line.

Industrial Sectors:

Chemical and Petrochemical Processing, Water and Wastewater Infrastructure, Food and Beverage Manufacturing, Pharmaceutical Processing, Power Generation and Cooling Loops, and Pulp and Paper Mills.

Application Scenarios:

1. Liquid Flow Measurement and Metering: Installed inside ProcessMaster flowmeter transmitter heads to process low-level voltage signals generated by magnetic flow sensors into standardized 4-20 mA HART flow readings.

2. Chemical Batching and Dosing Loops: Deployed in continuous chemical processing lines to deliver real-time volumetric flow feedback for automated dosing valves and feed pumps.

3. Potable Water and Industrial Wastewater Monitoring: Integrated into municipal water distribution networks and effluent treatment facilities to monitor bi-directional fluid rates with high zero-point stability.

4. Transmitter Electronics Retrofit & Repair: Utilized as a direct drop-in replacement electronic cartridge to restore flowmeter functionality following electronic failure or to upgrade existing FET300 transmitter heads to HART protocols without cutting field piping.