YUNYI-806 Series Hygienic Storage Radar Level Meter: Non-Contact Level Measurement Solution for System Integration and Engineering Projects

In the process of industrial automation project delivery and long-term operation and maintenance, the accuracy and reliability of storage tank level measurement directly affect material balance, production safety, and project acceptance standards. For system integrators, engineering contractors, and IoT solution providers, traditional contact level instruments in hygienic media environments often face risks of adhesion, corrosion, blockage, and downtime caused by frequent cleaning, while non-contact measurement has become the preferred choice to reduce operation and maintenance costs and ensure data continuity.

The Nexisense YUNYI-806 series hygienic storage radar level meter is designed based on the microwave pulse principle and is specially developed for high-hygienic applications such as food, pharmaceutical, fine chemical, and water treatment. Through special demodulation technology, it accurately captures nanosecond-level time intervals to achieve high-precision distance calculation from the antenna to the medium surface, providing stable and continuous level data support for automation systems.

Working Principle and Technical Advantages

The radar level meter antenna emits an extremely narrow microwave pulse, which propagates in space at the speed of light. When it encounters the surface of the measured medium, part of the energy is reflected back and received by the same antenna. The time interval between the transmitted pulse and the received pulse is proportional to the distance from the antenna to the surface of the measured medium. Due to the extremely high propagation speed of electromagnetic waves, the time interval is at the nanosecond level, which is difficult to accurately identify by traditional methods. The YUNYI-806 series adopts dedicated demodulation technology, which can accurately extract the time difference and complete distance calculation and level conversion through a microprocessor.

The technical advantages are reflected in three aspects: first, completely non-contact measurement, avoiding direct contact between the medium and the instrument, meeting CIP/SIP cleaning requirements; second, the measurement is not affected by medium density, temperature, pressure, and steam interference, suitable for viscous, crystalline, foamy, and highly corrosive liquids; third, fast response speed, supporting continuous real-time output, meeting the needs of DCS/SCADA systems for dynamic level monitoring.

Industry Application Scenarios

The YUNYI-806 series is widely used in engineering projects that require strict hygienic control or high-reliability level monitoring:

• Food and Beverage Storage Tanks: Level monitoring of storage tanks for dairy products, fruit juice, edible oil, etc., ensuring traceability of the production process.

• Pharmaceutical and Biological Engineering: Level control of API storage tanks, sterile solution tanks, and fermentation tanks, meeting GMP validation requirements.

• Fine Chemical and Hazardous Chemical Storage: Storage tanks for high-purity reagents, acid-base solutions, and organic solvents, supporting deployment in explosion-proof areas.

• Smart Water and Environmental Protection Projects: Level data collection for regulating tanks, clean water tanks, and chemical storage tanks in sewage treatment plants, connected to SCADA for remote monitoring.

• Energy and Infrastructure Projects: Level management of diesel, lubricating oil, and coolant storage tanks, providing accurate inventory data for energy management systems.

In the above scenarios, the instrument can be directly used as an edge node to access industrial IoT platforms, realizing level data upload to the cloud and predictive maintenance.

Equipment Selection Guide

For engineering procurement and system integration needs, the YUNYI-806 series provides clear selection parameters:

• Measurement Range: 0～10m, 0～20m, 0～30m optional, covering most industrial storage tank heights.

• Accuracy: ±3mm (standard type) / ±2mm (high-precision type), meeting metering-level applications.

• Antenna Type: Hygienic PTFE or 316L stainless steel polished antenna, supporting flange or hygienic clamp installation.

• Medium Temperature: -40℃～+200℃ (depending on antenna material).

• Working Pressure: -0.1～4.0MPa.

• Protection Rating: IP67/IP68, optional explosion-proof Ex ia IIC T6 Ga.

• Power Supply and Output: 24VDC two-wire/four-wire, 4-20mA+HART or Modbus RTU/RS485 output.

When selecting, engineering companies are advised to focus on confirming the installation space at the top of the tank, the dielectric constant of the medium, and whether heat tracing protection is required to ensure the best measurement effect.

System Integration, Protocol Compatibility and Docking Precautions

The YUNYI-806 series natively supports Modbus RTU and Modbus TCP protocols, which can be directly connected to PLC, DCS, and SCADA systems without additional protocol converters. The following points are recommended when integrating:

• Default communication parameters baud rate 9600, which can be modified to 4800～19200 through upper computer software, supporting parity check and stop bit configuration.

• For OPC UA or EtherCAT architecture, seamless mapping can be achieved through third-party industrial gateways.

• Field bus wiring is recommended to use shielded twisted pair, and grounding treatment must comply with EMC specifications to avoid parallel laying with strong current cables.

• Instrument address supports free setting from 1～247, facilitating multi-point networking.

• HART protocol version is optional for compatibility with traditional DCS systems.

Nexisense provides complete communication manuals, register mapping tables, and PLC routines to help integrators quickly complete debugging and acceptance.

OEM/ODM Customization, Bulk Supply and Quality Control Advantages

As an industrial hardware manufacturer, Nexisense supports full-process OEM/ODM customization services, including:

• Antenna material, installation interface (DN50～DN150 hygienic flange, clamp-type connection) and housing color customization.

• Protocol secondary development and private register definition.

• Bulk labeling, packaging, and serial number management to meet engineering project bulk procurement needs.

• Standard delivery time 15 working days, emergency orders can be compressed to 7 working days.

• Quality control system covers raw material traceability, 100% factory testing, and three-year warranty, complying with ISO 9001 and RoHS requirements.

Bulk supply projects can sign long-term framework agreements to ensure price stability and priority delivery.

Real Project Application Cases

A large dairy group selected the YUNYI-806 series to replace the original ultrasonic level meters in a new intelligent factory project. The project involved 42 stainless steel storage tanks with a height of 10m. The integrator connected to the existing PLC system via RS485 bus. After installation, the level data fluctuation was less than ±2mm, completely eliminating the false alarm problem caused by condensate water in the original instruments, and the annual maintenance cost was reduced by about 65%.

In another pharmaceutical enterprise hazardous chemical warehouse renovation project, the YUNYI-806 explosion-proof instrument was deployed in ethanol storage tanks to achieve 24-hour uninterrupted monitoring, with data synchronously uploaded to the central control room, meeting national hazardous chemical safety management requirements.

FAQ

Q1: Does the YUNYI-806 series support use in storage tanks with high steam content?

A: Supported. The instrument adopts microwave pulse technology and has strong suppression ability against steam and condensate water. It is recommended to select an antenna with a purge interface and enable the steam compensation function during configuration.

Q2: How to ensure the hygienic requirements of the instrument during CIP cleaning?

A: The hygienic antenna surface adopts food-grade PTFE or electropolished 316L material, with surface roughness Ra≤0.8μm, supporting 150℃ high-temperature steam cleaning. It is recommended to use hygienic clamp connections during installation to avoid dead corners.

Q3: How to avoid address conflicts and communication interference when networking multiple instruments?

A: The instrument supports free address setting. When using Modbus RTU bus, it is recommended that each bus segment does not exceed 32 units, and terminal resistors should be added. Relays can be used in sections if necessary.

Q4: Can the level meter directly output liquid volume value instead of only height?

A: Supported. By setting parameters through upper computer software or inside the instrument, tank shape parameters (cylinder, spherical tank, conical bottom, etc.) can be input to achieve automatic volume conversion and output through Modbus registers.

Q5: How to conduct EMC testing and explosion-proof certification in engineering projects?

A: The product has passed CE, RoHS, and optional ATEX/IECEx certification. Integrators can request complete EMC test reports, and strictly follow grounding specifications during on-site installation.

Q6: What is the minimum order quantity for bulk purchase? How is the delivery time guaranteed?

A: Standard models support minimum order of 50 units, and customized models depend on complexity. Nexisense has a dedicated production line, and framework agreement customers can lock delivery time and inventory.

Q7: Will the level meter be affected when measuring high-viscosity media (such as syrup, honey)?

A: The impact is minimal. Radar waves have high reflectivity on the surface of viscous media. It is recommended to select a larger beam angle antenna and appropriately adjust the echo threshold during debugging.

Q8: How to achieve seamless docking with the existing SCADA system?

A: Provide Modbus TCP gateway solution or direct RS485 to Ethernet module, and attach complete point table files and test scripts. Integrators can complete pre-debugging in the laboratory.

Q9: What is the product warranty period and after-sales technical support cycle?

A: Standard warranty is three years, and lifetime technical support is provided. After project acceptance, an annual maintenance agreement can be signed, including remote diagnosis and on-site inspection services.

Q10: How to confirm the influence of medium dielectric constant on measurement accuracy during selection?

A: Media with dielectric constant ≥1.8 can be measured stably. Nexisense provides a reference table of common medium dielectric constants. The engineering team can use it to predict measurement effects, and arrange on-site prototype verification if necessary.

Summary

The Nexisense YUNYI-806 series hygienic storage radar level meter provides system integrators and engineering companies with an efficient and stable level data acquisition solution with reliable non-contact measurement technology, flexible communication interfaces, and strict hygienic design. In the context of continuous advancement of industrial automation and smart factory construction, choosing a radar level meter that meets the actual needs of the project can not only reduce integration complexity but also significantly improve the data quality and operation and maintenance efficiency of the overall system.

System integrators and project leaders are welcome to contact the Nexisense technical support team at any time if they need technical parameters, prototype testing, OEM customization solutions, or bulk supply quotations. We will provide professional selection advice and implementation support according to your specific project needs to jointly promote efficient project delivery.