HX800 level transmitter sensor Liquid meter Water Oil | Электронные компоненты и принадлежности

HX800 level transmitter sensor Liquid meter Water Oil | Электронные компоненты и принадлежности

​Product overview The input liquid level transmitter uses a high performance diffusion silicon piezoresistive pressure sensor as a measuring element to accurately measure the static pressure that is proportional to the depth of the liquid level, and convert the signal conditioning circuit into a standard (current or voltage) signal output, and establish a linear correspondence between the output signal and the liquid depth. A measurement of the depth of a liquid. With high precision and small volume, the liquid level can be measured directly from the transmitter to the liquid level, and it is easy to use. It is suitable for liquid level measurement and control in the fields of petroleum, chemical industry, power plant, urban water supply and hydrology exploration. Product features The sensor part of the input (insert) liquid is a fully sealed stainless steel structure, the shell of the electronic circuit is cast aluminum structure, which is installed in the place where the connection is convenient, so it is easy to adjust and connect. technical parameter Measurement range (FS) 0~0.5m... 200mH2O or 0~5KPa... 2MPa Allowable overpressure 2 times full range pressure Measuring medium compatible with 316/304 stainless steel liquid (special optional anticorrosive type) Comprehensive accuracy 0.25% 0.5% Typical long-term stability: + 0.1%FS/ maximum: + 0.2%FS/ years. Use temperature range: -20 degrees ~70 -20 (insert type): -20 C / C The compensation temperature range is integral: -10 C ~55 C (split type): -10 C ~70 C. Zero temperature drift typical: + 0.02%FS/ C: Max: + 0.05%FS/ centigrade. Full temperature drift typical: + 0.02%FS/ degree maximum: + 0.05%FS/ centigrade. Power supply range 12~36VDC (general 24VDC) Signal output 4~20mA/1~5VDC/ 0~5VDC Load resistance < (U-10) /0.02 Omega Structural material shell: stainless steel 1Cr18Ni9Ni diaphragm: stainless steel 316L Sealing: fluorine rubber cable: 7.2mm special PVC cable Insulation resistance 100M Omega, 50VDC Protection grade of protective grade shell IP68 Safety and explosion-proof Ex ia II CT5 Response time less than 2 ms About 250 grams of weight The resolution is infinitely small (Theory), 1/100000 (usually). Working principle The principle of static pressure measurement When the liquid level transmitter is put into a certain depth of the measured liquid, the pressure on the liquid surface of the sensor is P=p.g.H+PO. P: the unit of pressure at the surface of the sensor: Pa P: the measured liquid density, unit: kg/m3 G: local gravity acceleration, unit: m/s2 Po: atmospheric pressure on the liquid surface, unit: Pa H: the depth unit of the sensor to drop the liquid: M At the same time, the air pressure PO is introduced into the back pressure chamber of the sensor through the air guide cable, so as to reduce the PO of the liquid surface of the sensor, the sensor can measure the pressure as: P=O.gH obviously, through the code pressure P, the level depth H, the sensing pressure signal can be amplified by the circuit, and the standard signal is output after the compensation. Product application: The measurement and control of liquid level in the field of industrial level measurement and control, oil, chemical, power plant, hydrologic monitoring, reservoir, dam, and hydropower construction in the urban water supply and sewage treatment. Features: reverse polarity and current limiting protection; laser resistance adjustment temperature compensation, zero point, range can be regulated in the field; wide range of corrosion resistance, suitable for a variety of media; overload and anti-interference ability, performance stability.