502-330-008 Continuous Measurement RF Admittance Level Gauge

502-330-008 Continuous Measurement RF Admittance Level Gauge

Structural composition:

Radio frequency admittance level switch is commonly used in industrial production processes to measure level height. Its structure is simple, and those who have used or seen it know that it mainly consists of a probe rod, process connection parts, and a junction box with electronic components.

The probe is an important component of the RF admittance level switch, and it is used for measurementJProtectionJComposed of three parts: insulation layer. The form of the probe can be customized as pole or cable according to the working conditions, and the length and material can also be customized according to special requirements. The connection process is available in threaded and flange types, and can also be customized according to special needs. The outer shell of the junction box is made of aluminum alloy material, with a thickness that meets the explosion-proof level requirements. It is equipped with visible electronic modules inside, making wiring and debugging very convenient. The overall structure is simple, easy to install and use, stable and reliable performance, and almost maintenance free, which effectively improves work efficiency.

Radio frequency admittance level meter is a new type of level measuring instrument,“admittance”As the reciprocal of impedance in electricity, it is composed of resistive, capacitive, and inductive components“radio frequency”Namely high frequency, therefore radio frequency admittance technology can be understood as measuring admittance using high frequency.

Features:

1. Strong universality: suitable for various occasions, can detect particles, fly ash, conductive and non-conductive liquids, viscous materials;

2. Anti adhesion circuit: Anti adhesion circuit design can eliminate false error signals caused by material adhesion;

3. Power loss protection mode: low or high fault alarm. On site adjustable.

4. Easy to install and adjust

5. Not afraid of sticking or hanging materials

6. Good stability, not affected by temperature

7. Delay output adjustable

8. Optional temperature resistance * up to 550 ℃

9. High and low position failure protection function

Measurement principle:

Radio frequency admittance is a new level control technology developed from capacitive technology, which is anti hanging, more reliable, and has wider applicability. It is an upgrade of capacitive level technology. The so-called radio frequency admittance refers to the reciprocal of impedance in electricity, which is composed of resistive, capacitive, and inductive components. Radio frequency is the spectrum of high-frequency radio waves, so radio frequency admittance can be understood as measuring admittance using high-frequency radio waves. When the instrument is working, the sensor of the instrument forms an admittance value with the wall and the measured medium. When the level changes, the admittance value changes accordingly. The circuit unit converts the measured admittance value into a level signal output to achieve level measurement.

For continuous measurement, the difference between radio frequency admittance technology and traditional capacitance technology is not only mentioned above, but also includes two important circuits, which are improved based on an important discovery in conductive hanging practice. The above technology also solves the problem of connecting cables and the issue of hanging materials at the root of vertically installed sensors at this time. The two circuits added to the lock are the oscillator buffer and the AC converter chopper driver.

502-330-008 Continuous Measurement RF Admittance Level Gauge

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