​RF Admittance Level Transmitter

Working Principle

The RF Admittance Level Transmitter uses advanced radio frequency (RF) technology to measure the level of materials, including liquids, solids, and powders. The core principle behind this technology is the change in conductivity of a material as its level changes. When the material's level fluctuates, its conductivity also varies,which in turn alters the signal detected by the RF sensor. This allows for precise and reliable measurement of material levels in diverse environments.

To further enhance performance, the RF Admittance Level Transmitter often integrates specialized auxiliary circuits, including the Driving-Shield Circuit and the Chopping Circuit, which help mitigate environmental interference and improve signal stability:

• Driving-Shield Circuit: This circuit introduces a shielding electrode to reduce the impact of external electromagnetic interference, ensuring that the measurement signal remains stable and accurate even in environments with significant noise. It improves the reliability and precision of the measurements.

• Chopping Circuit: By alternating the sensor signal at specific frequencies (typically from several kHz to tens of kHz), this circuit filters out low-frequency noise and DC offsets, further improving the measurement accuracy and ensuring stable operation even under challenging conditions.

Together, these technologies allow the RF Admittance Level Transmitter to deliver consistent and precise level measurements in a wide range of applications.

Product Advantages

1. High-Performance Circuit Design

   The RF Admittance Level Transmitter features a unique circuit design that enables the reliable measurement of process media levels, regardless of temperature or humidity fluctuations. Unlike traditional measurement technologies, this transmitter operates with no moving parts, making it highly durable with a long service life. No moving parts ensure low maintenance, making this transmitter ideal for harsh industrial environments.

2. Broad Adaptability

• Wide Measurement Range: The transmitter can measure levels from a few centimeters to several meters with a maximum measurement range reaching up to hundreds of meters, allowing it to be used in various industries and applications.

• Extreme Temperature Resistance: The probe can withstand process temperatures from -100°C to 800°C, making it suitable for extreme conditions.

• Versatile Interface Measurement: This device is perfect for viscous material interfaces such as slurries, liquids, or powders, providing reliable performance even in challenging environments.

3. Superior Stability and Durability

   The RF Admittance Level Transmitter offers outstanding stability and reliable output in diverse industrial conditions. It is resistant to issues such as:

   Its solid-state design eliminates the need for frequent cleaning or maintenance, further reducing downtime and operational costs. The absence of moving parts ensures no wear and tear over time, making it a cost-effective solution for industries with demanding measurement requirements.

• Fly ash

• Falling materials

• Moisture

• Crystallization

• Wax depositionTechnical Parameters

• Product Name: RF Admittance Level Transmitter

• Product Series: JC-54L

• Measurement Range: 3m, 30m

• Measurement Accuracy: 0.05% to 0.1% of Full Scale

• Antenna Types: Flexible cable, insulated flexible cable, non-insulated flexible cable, rigid rod, insulated rigid rod, double-ended insulated rigid rod, cylindrical rigid rod

• Antenna Materials: PTFE, 304 stainless steel, 316 stainless steel

• Power Supply: 24VDC

• Signal Output: 4-20mA, HART, Modbus

• Process Temperature: -40°C to +200°C

• Process Pressure: -0.1 to 10 MPa

• Process Connection: Threaded, flanged (optional)

• Protection Rating: IP65, IP67, IP68 (optional)

• Explosion-proof Rating: Exd II CT6 Gb

Applications

The RF Admittance Level Transmitter is an ideal choice for industries that require highly reliable, non-contact level measurement in tough environments. Its versatile applications include, but are not limited to:

• Oil & Gas: Monitoring tank levels, pipelines, and storage tanks in extreme conditions.

• Chemical Processing: Reliable measurement of chemical liquids, powders, and slurries in corrosive environments.

• Food & Beverage: Measuring levels in viscous and sticky food products, ensuring consistent process monitoring.

• Water Treatment: Monitoring water, sludge, and other wastewater processes.

• Pharmaceuticals: Handling precise level measurements for sensitive pharmaceutical powders and liquids.

Conclusion

The RF Admittance Level Transmitter is a robust, precise, and versatile solution for a wide variety of industrial level measurement applications. Its ability to measure in extreme conditions, combined with its long-term stability, easy maintenance, and high adaptability, makes it an essential tool for industries that demand consistent, accurate performance. Whether for measuring liquids, solids, or powders, the RF Admittance Level Transmitter offers a reliable and efficient way to monitor and control process media levels, enhancing operational efficiency and reducing maintenance costs.