Chinese
Spanish
ZFG Series Integrated Electromagnetic Flowmeter: Reliable Integrated Solution for Process Industry Flow Measurement
Product Overview
In process industries such as chemical, mining and metallurgy, water supply and drainage, wastewater treatment, food, and papermaking, accurate flow monitoring of conductive liquids is directly related to process control, safety compliance, and production efficiency. The Nexisense ZFG Series Integrated Electromagnetic Flowmeter is designed with an integrated sensor and signal converter. The converter meets IP67 protection requirements and features high reliability and system compatibility. This series is based on Faraday’s electromagnetic induction principle and is suitable for measuring the volume flow of various acid, alkali, salt solutions, pulp, slurry, and liquid-solid two-phase media. It can be paired with DCS, PLC, and SCADA systems to achieve flow detection, totalization, regulation, and control.
The ZFG series emphasizes easy installation, low maintenance, and long-term stability, making it particularly suitable for localization replacement in new projects or existing system upgrades.
Core Technical Features and Performance Advantages
The ZFG integrated electromagnetic flowmeter sensor adopts an integral welded structure with excellent sealing performance and no moving parts inside, resulting in almost no pressure loss. The measurement accuracy is not affected by changes in physical parameters such as medium pressure, temperature, density, or viscosity. It also has a conductivity measurement function to determine in real time whether the sensor is empty.
Main Technical Highlights:
16-bit embedded microprocessor with fast computing speed and high measurement accuracy
Bidirectional flow measurement function, supporting forward, reverse flow, percentage, and velocity display
Built-in three totalizers, displaying forward total, reverse total, and difference total respectively
Supports 4G or Cat1 digital communication signal output to meet remote monitoring needs
Ultra-low EMI switching power supply with wide voltage adaptation range and strong EMC performance
Chinese and English menu operation interface with self-diagnostic information and fault handling functions
Strong anti-interference capability and reliable digital processing
Electrode material selection is key to ensuring long-term stable operation. Depending on the corrosiveness of the medium, materials such as molybdenum-containing stainless steel (0Cr18Ni12Mo2Ti), Hastelloy B, Hastelloy C, titanium Ti, tantalum Ta, or platinum (Pt) can be selected, covering a wide range of applications from general sewage to highly corrosive chemical media.
Typical Application Scenarios
The Nexisense ZFG series performs excellently in multiple industry projects:
Chemical production processes: Used for measuring flow of various acid, alkali, salt solutions, and corrosive liquids, supporting precise control of batching and reactor inlet/outlet materials.
Wastewater treatment and environmental projects: Suitable for flow metering of municipal sewage, industrial wastewater, slurry, and media containing solid particles, with 4G communication for remote data acquisition and monitoring.
Mining, metallurgy, and slurry transportation: Handles high-concentration liquid-solid two-phase media such as pulp and ore slurry; measurement accuracy is not affected by viscosity or density.
Food, papermaking, and sugar industries: Meets hygiene-grade or conventional process flow monitoring needs, linked with control valves and recording instruments for closed-loop control.
Port dredging and water supply/drainage systems: Large-diameter models are suitable for high-flow applications and support bidirectional measurement to handle complex working conditions.
In actual EPC projects, the ZFG series has been successfully integrated into DCS platforms of many enterprises, achieving seamless replacement with existing flow instruments and significantly reducing interface adaptation and commissioning cycles.
Selection Guide and Integration Precautions
Correct selection maximizes instrument performance and reduces project costs. It is recommended to follow these key points:
Medium characteristic analysis: Evaluate conductivity (≥5μS/cm), corrosiveness, viscosity, solid particle content, and temperature/pressure range, then select appropriate electrode and lining materials.
Caliber and flow range: Select the appropriate caliber according to pipe size and design flow to ensure the flow velocity is within the recommended range (usually 0.3-10 m/s).
Output and communication protocol: Choose 4-20mA analog output for basic control; recommend 4G/Cat1 or HART digital communication for projects requiring remote monitoring.
Protection and installation environment: IP67 protection grade is suitable for outdoor or humid environments. Ensure upstream straight pipe section is at least 5D and downstream at least 3D during installation, and avoid strong magnetic field interference.
Electrode material matching: Molybdenum-containing stainless steel for general sewage; Hastelloy C or tantalum recommended for strong acid/alkali media; platinum electrodes for special high-purity media.
System Integration Precautions:
Standard flange process connection is compatible with most existing piping systems, reducing modification workload.
When using 4G/Cat1 communication, configure reliable power isolation and lightning protection measures to ensure data transmission stability.
When integrating with PLC or DCS, verify consistency of pulse output, current output, and digital protocol parameters.
The empty pipe detection function can link alarms; it is recommended to connect to the Safety Instrumented System (SIS) to enhance process safety.
For bulk projects, provide medium parameters, pipe specifications, and control system interface requirements in advance for factory pre-configuration.
OEM Customization and Bulk Supply Advantages
For system integrators and EPC projects, Nexisense provides comprehensive OEM customization and bulk supply support:
Custom caliber, pressure rating, electrode materials, and communication methods
Unified parameter presets and factory calibration reports for bulk products
Long-term supply agreements and rapid response mechanism for spare parts
Technical documentation and installation guidance services to help achieve efficient project delivery
These advantages help control project instrument procurement costs while ensuring product consistency and long-term maintainability.
Frequently Asked Questions (FAQ)
Q1. What are the integration advantages of the ZFG series integrated electromagnetic flowmeter compared to the split type?
The integrated design reduces on-site wiring and protection workload, with a higher IP67 protection rating, making it suitable for system integration in outdoor or harsh environments.
Q2. How does 4G or Cat1 communication connect with existing SCADA systems?
It supports standard digital communication protocols and can achieve remote data upload through MQTT or related gateways, seamlessly integrating with mainstream SCADA platforms.
Q3. Which electrode material should be selected for measuring highly corrosive acid and alkali solutions?
Hastelloy C or tantalum materials are recommended. Combined with corresponding linings, they can significantly improve the service life of the instrument in strongly oxidizing or reducing media.
Q4. How is the empty pipe detection function applied in actual projects?
It can determine in real time whether the pipeline is full of medium and link alarms or interlock controls, suitable for pump protection and safety instrumented systems.
Q5. How does bidirectional flow measurement help in wastewater treatment return flow conditions?
It supports accurate metering of forward and reverse flow and difference totalization, facilitating process optimization and material balance calculations.
Q6. What is the straight pipe section length requirement during installation?
It is recommended to have a straight pipe section of no less than 5D upstream and 3D downstream to ensure measurement accuracy meets specification requirements.
Q7. Does bulk procurement support unified parameter locking and OEM marking?
Yes. According to project requirements, batch instruments can be preset with parameters, customized labels, and dedicated testing to ensure on-site consistency.
Q8. How to obtain detailed technical specifications, selection manuals, and project reference cases?
Complete product manuals, installation guidance, and typical industry application cases can be provided through technical support to assist in project technical review and tender document preparation.
Conclusion
The Nexisense ZFG Series Integrated Electromagnetic Flowmeter provides a mature solution for process industry flow control with reliable measurement performance, flexible communication methods, and high system compatibility. Whether for new automation projects or existing system retrofits, it helps integrators achieve efficient delivery and stable operation.
Welcome system integrators, EPC engineering companies, and end-user technical teams to contact us to discuss specific project requirements. We provide professional selection support, sample verification, and customized services to assist in the optimization and upgrading of your process control systems.
