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Yunyi has engaged in the research and development of pressure, liquid level, flow, and temperature sensors and transmitters, as well as their solutions. Providing OEM & ODM and custom design services

YUNYI capacitive level transmitter

Dielectric sensing · Fearless of Harsh Conditions – The reliable choice for liquid level measurement in complex working conditions

YUNYI Capacitive level gauges are a type of material level measurement instrument based on the principle of capacitance variation. It detects the liquid level or material level height by measuring the change in capacitance value formed between the probe and the container wall. When the height of the material changes, the alteration of the dielectric constant causes the capacitance value to change accordingly. The instrument accurately calculates the material level height by detecting this change. This product adopts a fully sealed structure and corrosion-resistant materials, making it particularly suitable for complex working conditions such as high pressure, high temperature, and strong corrosion. It provides a reliable solution for level measurement of various liquids, slurries, and granular solids.

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Product advantages
1. Wide range of applicable media: It can measure various materials such as liquids, slurries, powders, and particles, with a broad range of applications
2. High pressure and high temperature resistance: With a special structural design, it can withstand a maximum pressure of up to 25 mpa and a temperature of up to 400℃
3. Strong anti-interference ability: It is not affected by changes in medium density, bubbles or pressure, ensuring stable and reliable measurement
4. Simple and convenient installation: Compact structure, only one installation hole needs to be made on the container, making installation and maintenance simple and convenient
5. No moving parts: Based on the static measurement principle, it has no wearing parts and a long service life
6. Economical and practical: Compared with other level gauges, it offers high cost performance and low maintenance costs

Core application fields
✅ petrochemical industry: liquid level measurement of various corrosive media such as acids, alkalis and solvents
✅ Power and energy field: boiler drum water level measurement, deaerator water level monitoring
✅ Water treatment environmental protection: liquid level control of sewage tanks, sludge tanks, and chemical agent tanks
✅ food and pharmaceutical industry: liquid level detection of viscous media such as sauces, syrups, and raw materials for medicines
✅ Metallurgical and mining industry: level measurement of granular solids such as pulp, fly ash, and cement

Technical Specifications

  1. Application: Liquid, oil, water
  2. Measuring range: 300-3000mm
  3. Process connection: M20*1.5Thread,flange
  4. Power Supply: 24VDC
  5. Output Signal: 4-20mA
  6. Compensation temperature: -10~70°C
  7. Media temperature: -30~150°C
  8. Store temperature: 20~80°C
  9. IP grade: IP65
  10. Explosion-proof grade: ExiaIIC T6 Ga/ExiaIC T6 Gb
  11. Accuracy: 0.5%FS ,0.25%FS( Need customized)
  12. Work pressure: 0.6-3Mpa

Performance Parameters

  • Measuring Principle: Based on static capacitance measurement technology, with no moving parts.

  • Measuring Range300mm to 3000mm (0.3 to 3 meters). The page does not specify if extended ranges are available.

  • Measuring Accuracy0.5%FS (Full Scale). A higher precision of 0.25%FS is available as a custom order.

  • Working Pressure: Standard resistance is 0.6 to 3MPa. However, the product advantages mention a special design can withstand up to 25MPa.

  • Media Adaptability: Can measure various materials including liquids, oil, water, slurries, powders, and granular solids.

Installation & Adaptability

  • Process Connection: Offers M20*1.5 thread or flange connection options.

  • Installation Advantage: Compact structure requires only one mounting hole on the container, making installation simple and convenient.

  • Suitable Media: Well-suited for corrosive media (acids, alkalis, solvents), viscous media (sauces, syrups), and solid particles (fly ash, cement).

 Environmental Adaptability

  • Media Temperature: Can handle media temperatures from -30°C to 150°C.

  • Compensation Temperature: Includes temperature compensation functionality from -10°C to 70°C.

  • Explosion Proof Grade: Up to Exia IIC T6 Ga/Gb (Intrinsic safety), suitable for the highest risk hazardous areas.

  • Ingress ProtectionIP65 rating, providing protection against dust and water jets, but not suitable for long-term submersion.

  • Anti-InterferenceNot affected by changes in medium density, bubbles, or pressure, ensuring stable and reliable measurement.

 Data & Communication

  • Output Signal: Standard 4-20mA analog signal.

  • Communication Protocol: The page mentions only the 4-20mA output; it does not mention HART, RS485, or other digital protocols.

  • Power Supply24VDC.

 Certifications & Services

  • Explosion-Proof Certification: Clearly lists Exia IIC T6 certification, indicating it is approved for use in hazardous areas like oil, gas, and chemical industries.

  • Customization Services: The manufacturer offers OEM, ODM, and custom design services. Higher accuracy (0.25%FS) or special pressure resistance may require customization.

  • Core Advantages: Positioned as an economical, high-cost-performance solution, emphasizing low maintenance costs and long service life.

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