Reliable, Intelligent Level Measurement for Biogas and Energy Industry
Precision Level Measurement in Biogas & Modern Energy Production
As the global energy industry accelerates toward cleaner and smarter operations, the precision and reliability of process monitoring have become critical to system safety and efficiency.
In particular, at biogas plants, fermentation tanks, and sludge storage tanks, stable control of liquid level and pressure directly impacts fermentation efficiency, energy conversion rates, and equipment safety.
Shenzhen Jiwei Automations Ltd., leveraging advanced technology and international certification credentials, has launched the high-performance PRO series radar level meters and Ring-11 vibrating fork level switches, providing reliable level monitoring and safety protection solutions for the global energy and process industries.
China’s First EAC-Certified Level Switch Manufacturer
Jiwei Automation is the first company in China to obtain EAC certification for level switches, marking a milestone that demonstrates full compliance with the rigorous standards of the Eurasian Economic Union (EAEU).
In addition to EAC, Jiwei products have also achieved SIL2/3 functional safety certification, CE certification, 3C certification, and dual explosion-proof certification (gas and dust, Ex ia / Ex db), proving the safety and stability of its products in complex industrial environments.
Intelligent Interlock for Efficient Clean Energy Production
At a large-scale biogas power plant in Jiangsu, the original system faced challenges such as severe liquid level fluctuations, foam interference, and frequent manual inspections.
After multiple site surveys and technical discussions, the project team selected Jiwei PRO series radar level meters and Ring-11 vibrating fork level switches for level monitoring in fermentation tanks, storage tanks, and desulfurization towers.
Once commissioned, the radar level meters provided real-time level signals and automatically interlocked with feed and mixing systems to prevent overflow or pump dry-run, while the Ring-11 switches were used for high/low level alarms and emergency pump shutdown, ensuring safe operation under abnormal conditions.
After more than six months of continuous operation, the system performed stably under high foam, humid gas, and temperature fluctuations, without false alarms or sticking. Operators reported unmanned automatic operation, reduced maintenance frequency, increased fermentation efficiency, and significantly improved energy conversion and operational safety.
PRO Series Radar Level Meters – Precision and Durability Combined
Jiwei PRO series radar level meters employ advanced 80GHz FMCW continuous wave radar technology with narrow beam angle, zero blind zone, and focused energy. They deliver high-precision, continuous, and stable level or bulk material measurement under low dielectric media, powders, uneven, or inclined surfaces.
In clean energy, chemical storage, and pharmaceutical projects, PRO meters are often installed on high-level storage tanks, reactors, settling tanks, and condensate recovery tanks to monitor liquid levels in real time. With 4–20 mA or Modbus signals, they interlock with control systems for automatic refill, mixing, and discharge.
Each meter undergoes over 50 strict factory tests covering pressure, explosion-proof, corrosion resistance, temperature drift, vibration, and simulated operating conditions, ensuring reliable performance and consistent signals throughout its lifespan.
The fully sealed antenna design with PTFE/PPS corrosion-resistant material allows safe, maintenance-free operation even in high-temperature steam, strong acids and bases, and solvent vapor environments.
Key Advantages:
- High Precision: 80GHz radar with excellent resolution, measurement range up to 10 m, unaffected by steam, foam, dust, or agitation.
- Smart Bluetooth Interlock: Built-in Bluetooth 5.0 module with “Jiwei Smart Control” app enables wireless calibration, parameter configuration, and remote monitoring.
- Corrosion-Resistant Probes: PTFE diaphragm and high-pressure seal designed for harsh chemical environments.
- High-Temperature Tolerance: Up to 220°C for fermentation and gas recovery processes.
- Full Explosion Protection: Certified Ex db IIC T6 Gb, Ex ia IIC T6 Ga, etc.
- Intelligent Echo Algorithm: Automatically identifies false echoes and tracks real liquid surfaces.
- Non-Contact Measurement: Prevents fouling, corrosion, or wear, reducing maintenance costs.
- Flexible Installation: Supports flange, thread, and bracket installations, suitable for space-constrained tanks and reactors.
Ring-11 Vibrating Fork Level Switch – Reliable Point-Level Detection
In the level switch field, Jiwei’s Ring-11 vibrating fork level switch combines compact design and high stability, widely used in energy, chemical, food, and pharmaceutical storage tanks, reactors, pipelines, and mixing vessels.
Using frequency change detection, it maintains precise action even under adhesion, foam, or strong fluid disturbances.
In the biomass energy field, Ring-11 switches are installed in biogas fermentation tanks, storage hoppers, desulfurization tanks, and slurry pump inlets to monitor high and low levels of semi-liquid organic materials or fermentation liquids. Even with high viscosity, severe foaming, or frequent composition changes, the fork maintains stable vibration and accurately detects liquid levels, preventing pump dry-run or overflow incidents.
Core Features:
- Extreme Temperature Adaptation: Process temperatures up to 400°C with innovative water/air cooling design.
- Compact Design: Fork length only 40mm, suitable for pipes or small tanks.
- Low-Density Liquid Detection: Detects liquids as low as 0.5 g/cm³.
- Excellent Anti-Interference: Stable output in foam, bubbles, or high-viscosity liquids.
- Multiple Outputs: Relay, two-wire, NAMUR, transistor outputs for easy system integration.
- Comprehensive Certifications: SIL2/3, EAC, CE, 3C, gas and dust explosion-proof.
- Hygienic Compliance: Meets HACCP and 3A standards, suitable for pharmaceutical and food fermentation processes.
Stable, Intelligent, Reliable – Jiwei’s Commitment
With deep expertise in industrial measurement and automation, Shenzhen Jiwei Automations Ltd. upholds the philosophy of “reliable measurement safeguarding industrial safety.” By continuously innovating, Jiwei provides not just products but stable, intelligent, and sustainable solutions for energy, chemical, food, pharmaceutical, and environmental industries.
In level measurement, Jiwei’s PRO series radar meters and Ring-11 vibrating fork switches achieve full domestic upgrades in explosion-proof design, corrosion resistance, and smart algorithms. Their performance meets international top-brand standards, becoming a reliable replacement for imported brands like VEGA and Endress+Hauser, proudly showcasing China’s industrial strength on the global automation stage.
From biogas energy to fine chemicals, pharmaceutical clean processes, and food safety production, Jiwei products serve thousands of enterprises worldwide, offering reliable, intelligent, and high-quality level measurement and control solutions.
Looking forward, Jiwei will continue to drive innovation, build internationally competitive level and material measurement brands, and help global industries move toward higher efficiency, safety, and sustainability, proving China’s best capabilities in automation.