Siemens radar level gauge 7ML5440-0GA00-0AA2 in stock

SIEMENS radar level gaugeThe problem is that the material itself is equivalent to a capacitor to the probe, which does not consume the energy of the transmitter (pure capacitor does not consume energy). However, if the equivalent circuit of the hanging material to the probe contains a resistor, the impedance of the hanging material will consume energy, thereby pulling down the oscillator voltage and causing changes in the bridge output, resulting in measurement errors. We have added a driver between the oscillator and the bridge to replenish the consumed energy, thus stabilizing the oscillation voltage applied to the probe.

The second issue is that for conductive materials, the grounding point on the surface of the probe insulation layer covers the entire material and hanging area, allowing the effective measurement capacitance to extend to the top of the hanging area, resulting in hanging errors, and the stronger the conductivity, the greater the error. But no material is conductive. From an electrical perspective, the hanging material layer is equivalent to a resistor, and the part of the sensing element covered by the hanging material is equivalent to a transmission line composed of countless infinitely small capacitors and resistance elements.

According to mathematical theory, if the hanging material is long enough, the impedance and reactance values of the capacitance and resistance parts of the hanging material are equal. Therefore, an AC phase detector sampler can be used to measure capacitance and resistance separately. The measured total capacitance is equivalent to the c level+C hanging material, and then subtracting the resistance R equal to the C hanging material, the true value of the level can be obtained, thereby eliminating the influence of hanging material. The measurement of multiple parameters such as C measurement=C level+C hanging material C level=C measurement - C hanging material=C measurement - R is the basis of measurement, and the AC phase detector sampler is the means to achieve it. Due to the use of the above three technologies, radio frequency admittance technology has demonstrated extraordinary vitality in field applications. It is currently the world's material level measuring instrument.

SIEMENS radar level gaugeWe can learn some common knowledge from the measurement principle of radar level gauge. Radar level gauge measures the level by processing the time it takes for radar waves to be emitted from the probe to the surface of the medium and then returned to the probe. There are many interfering signals mixed in the reflected signal. Processing real echoes and identifying various false echoes have become the key factors for radar level gauge to accurately measure all factors. This is very important and requires our operators to take it seriously.

The radar level gauge adopts the echo processing and data processing technology mentioned above, coupled with the high frequency and penetration performance of radar waves, it has better performance than contact level gauges and similar non-contact level gauges. This is the preferred product for users to choose. These include: continuous and accurate measurement under harsh weather conditions, very simple operation and easy debugging, accurate and safe, and energy saving. In general, as long as used according to operating specifications, it does not require maintenance and is reliable. It can also measure all media. The advantages of radar level gauges are also significant competitive advantages.

SIEMENS radar level gaugeCommon models:

7ML54400AB000AC2
7ML54400AB001AA1
7ML54400AB001AA2
7ML54400AB001AB1
7ML54400AB001AB2
7ML54400AB001AC1
7ML54400AB001AC2
7ML54400BA000AA1
7ML54400BA000AA2
7ML54400BA000AB1
7ML5440-0GA00-0AA2
7ML54400HB000AA2

7MF4033-1CA10-2AC6-Z
7MF4033-1DA10-2AC6-Z
7MF4033-1EA10-2AC6-Z
7MF4433-1CA10-2AC6-Z
7MF4433-1DA10-2AC6-Z
7MF4433-1EA10-2AC6-Z
7MF4433-1FA10-2AC6-Z
7ML54400HB000AA2
7ML54401HB000AA2
7ML54400GB000AA2
7ML54401GB000AA2
7MF1567-3DB00-5GA1