Liaoyang Huite Instrument Co., Ltd
76454063@qq.com
13342333488 13364190055
Building 5, Phase I, Baihong Yituo Industrial City, Rongxing Road Middle Section, Taizihe District, Liaoyang City
09.02,20217
Introduction to the working principle of RF admittance level gauge: The important difference between point RF admittance technology and capacitance technology is the use of three terminal technology. A wire is drawn out from the measurement signal of the circuit unit, amplified by a in-phase amplifier, and its output is connected to the shielding layer of the coaxial cable, and then connected to the shielding layer of the probe. This amplifier is a in-phase amplifier with a gain of '1'. The output signal is at the same potential, phase, and frequency as the input signal, but isolated from each other. The ground wire is the outermost shielding layer in the cable. Due to the above relationship between the centerline and the middle shield of coaxial cables, there is no potential difference between the two, so no current flows through, that is, no current leaks out from the centerline, which is equivalent to no capacitance or zero capacitance between the two. Therefore, the temperature effect of the cable and the installation of capacitors will not have any impact. For the problem of hanging materials on the probe, a new probe structure with five concentric layers is adopted: the innermost layer is the central measuring rod, the middle is the central shielding layer, and the outermost layer is the grounding installation thread, which is isolated separately by an insulation layer.
1. Strong universality: suitable for various occasions, can detect particles, fly ash, conductive and non-conductive liquids, viscous materials;
2. Anti adhesion circuit: Advanced 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
1. Power supply voltage: 220CAC ± 15% 50Hz; 24VDC ± 5%;
2. Power consumption: 4W;
3. Output signal: Relay output double pole double throw (DP/DT); 5A (resistive), 220VAC;
4. Environmental temperature: -40~70 ℃;
5. Sensitivity setting: 0.5~500pF (adjustable);
6. Delay time: adjustable from 0 to 30 seconds (on or off);
7. Power loss protection mode: low or high fault alarm, adjustable on site.
8. Installation form: ⑴ Flange installation: According to the flange standard provided by the user;
Radio frequency admittance level gauge is a cutting-edge alternative product for international level controllers, which has been widely used in Europe, America, and Japan. Domestic users are also using it to replace old products. It can detect all materials without being affected by changes in parameters such as density, particle size, chemical composition, sedimentation viscosity, and conductivity. Widely used for controlling various materials such as liquids, powders, slurries, solids, etc.
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