Liquid level transmitter, input sensor, water level controller

Liquid level transmitter, input sensor, water level controllerOur company is a production-oriented enterprise, and all products are *, with timely supply, favorable prices, three guarantees of quality, and a one-year shelf life. 16% value-added tax invoice can be issued.

Liquid level transmitter, input sensor, water level controller

Input type liquid level gauge, input type transmitter, water level sensor, water level controller JC-901B static pressure input type liquid level I. Overview: The new structure of JC-901B type liquid level transmitter is developed based on the gas cable type input type liquid level transmitter. The adoption of a new structure solves the disadvantages of traditional gas cable type liquid level transmitters, such as being afraid of blockage, prone to corrosion, and not resistant to high temperatures. The JC-901B diffusion silicon liquid level transmitter is a two-wire system, with 4-20mADC output and 24VDC DC power supply. The parts in contact with the medium are all made of stainless steel and can be directly installed on the measuring pipeline. It is extremely convenient to use and widely used in process control and liquid level measurement in industries such as petroleum, chemical, metallurgy, water conservancy, power, food, medicine, and environmental control. 2、 Working principle: Using static pressure measurement principle: When the liquid level transmitter is inserted into a certain depth of the measured liquid, the pressure formula on the sensor facing the liquid surface is: Ρ=ρ. g.H+Po, where P: the pressure on the transmitter facing the liquid surface ρ: the density g of the measured liquid Po: the local gravity acceleration Po: the atmospheric pressure on the liquid surface H: at the same time as the transmitter is inserted into the liquid depth, the pressure of the liquid is introduced into the positive pressure chamber of the sensor through gas guiding stainless steel, and then the atmospheric pressure Po on the liquid surface is connected to the negative pressure chamber of the sensor to offset the Po on the back of the sensor, so that the pressure measured by the sensor is: ρ. g.H. Obviously, by measuring the pressure P, the liquid level depth can be obtained. 3、 Functional features: ◆ Good stability, with long-term stability of up to 0.2% FS/year at full load and zero position. Within the compensation temperature range of 0-70 ℃, the temperature drift is less than 0.2% FS, and within the entire allowable operating temperature range, it is less than 0.5% FS. ◆ Equipped with reverse protection and current limiting protection circuits, the transmitter will not be damaged if the positive and negative poles are reversed during installation. In case of abnormalities, the transmitter will automatically limit the current to within 35MA. Solid state structure, no movable parts, high reliability, long service life. Easy installation, simple structure, economical and durable. 4、 Main technical parameters: Measurement range: 0-0.1 meters to 0-35 meters Large overload: However, tube length Measurement form: Balance hood Precision level: 0.5% F · S Power supply voltage: 24VDC Load resistance: ≤ 500 Ω Measurement medium: Various non corrosive liquids Long term stability: ± 0.2% F · S Annual relative humidity: 0-95% Compensation temperature: 0-70 ℃ Working temperature: -10~70 ℃ High temperature can reach 350 degrees (customized) Fifth, Structural features: Shell: Die cast alloy aluminum Main structural material: 1Cr18Ni9Ti Pressure interface: M20 × 1 5 or user-defined self weight: ordinary type 2kg, watch head type 2 2kg 6. Debugging method: Remove the protective cover to see the zero and full range resistors. Connect a standard power supply and an ammeter (0.2 poles or more) to adjust them. The steps are as follows: ◆ Adjust the zero resistor to output a current of 4mA when there is no liquid in the transmitter. ◆ Add liquid to the transmitter to full range and adjust the full range resistor to output a current of 20mA. ◆ Repeat the above steps two or three times until the signal is normal. ◆ After adjustment, tighten the protective cover. 7、 Attention: ◆ All supplied products come with user manuals and certificates of conformity, including product numbers, technical parameters, manufacturing dates, etc. Please carefully check to avoid using them incorrectly. When connecting to the power supply, strictly follow our company's wiring instructions for connection. If any abnormalities are found during use, the power should be turned off, the use should be stopped, and inspection should be carried out, or directly contact our company's technical department. During transportation and storage, the original packaging should be restored and stored in a cool, dry, and ventilated warehouse.