German DELTAFLUID sensor DELTAFLUID model DELTAFLUID price

DELTAFLUID sensor pressure sensor for level measurement. The static pressure submersible level transmitter (level gauge) is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid. It uses advanced foreign isolated diffused silicon sensitive elements or ceramic capacitive pressure sensitive sensors to convert static pressure into electrical signals, which are then converted into standard electrical signals (generally 4～20mA/15VDC) after temperature compensation and linear correction.

DELTAFLUID sensor features

Currently, baffles can be designed according to the water flow rate to reduce the water resistance generated by the water flow passing through the flow sensor, reducing the head loss of the water system. However, due to long-term impact from water flow, the baffle type still has fatigue issues, and setpoint drift may occur even if the flow value is calibrated at the factory. It is usually used in places where precise protection of flow values is not required, i.e., for flow interruption protection in case of sudden interruption of water flow in water pipes. There are very few designs specifically for water source heat pump units in China. The baffle type is specially developed for water flow monitoring of water loop/ground source heat pump air conditioning units. It is equipped with different baffles for different pipe diameters, and the water resistance of each baffle does not exceed 0.5 meters of water column, which is significantly lower than that of target-type water resistance. Each baffle-type flow sensor is equipped with pipe fittings identical to those of the water loop heat pump unit's water pipes. Only connection to the water pipe is required on-site, without any changes to the baffle. In addition, the pressure bearing capacity of the baffle-type flow switch is greater than 25bar, making it a low-cost flow switch for water loop heat pump units with low water flow requirements. Feedback from use on water loop/ground source heat pump units shows that differential pressure switches can effectively identify problems with the water piping installed on-site for water loop heat pump units, completely avoiding the situation where heat exchangers freeze due to low water flow. Flow sensors can also protect against heat exchanger freezing caused by decreased water flow due to clogged water filters. Additionally, water pipe differential pressure switches do not carry the risk of fatigue failure associated with target flow switches. Especially when there is a small amount of air in the water pipes, the flow sensor works very stably without floating issues similar to target flow switches. Feedback from years of use has not revealed any faults with the differential pressure switch itself.

DELTAFLUID sensor principle

Basic principles and types of ultrasonic flowmeters: When ultrasonic waves propagate in a flowing fluid, they carry information about the fluid's flow velocity. Therefore, the fluid's flow velocity can be detected by receiving the ultrasonic waves, thereby converting it into flow rate. According to the detection method, ultrasonic flowmeters can be divided into different types such as transit-time difference method, Doppler method, beam deflection method, noise method, and correlation method. Ultrasonic flowmeters are a type of non-contact instrument that has only begun to be applied in the last ten years or so with the rapid development of integrated circuit technology. They are suitable for measuring fluids that are difficult to contact and observe, as well as large-diameter pipe flows. Linked with level gauges, they can measure the flow of open water. Using ultrasonic flow measurement does not require installing measuring elements in the fluid, so it does not change the fluid's flow state, produces no additional resistance, and the installation and maintenance of the instrument do not affect the operation of production pipelines, making it an ideal energy-saving flowmeter. Industrial flow measurement generally faces difficulties in measuring large pipe diameters and large flows. This is because general flowmeters bring manufacturing and transportation difficulties as the measurement pipe diameter increases, leading to higher costs, increased energy loss, and installation challenges. Ultrasonic flowmeters avoid all these disadvantages. Because various types of ultrasonic flowmeters can be installed outside the pipe for non-contact flow measurement, the instrument cost is basically unrelated to the size of the measured pipe diameter. In contrast, the cost of other types of flowmeters increases substantially as the diameter increases. Therefore, the larger the diameter, the more superior the cost-performance ratio of ultrasonic flowmeters compared to other types of flowmeters with the same function. They are considered better instruments for large-diameter flow measurement. Doppler method ultrasonic flowmeters can measure the flow of two-phase media, so they can be used for measuring dirty flows such as sewers and sewage. In power plants.

DELTAFLUID sensor selection

When selecting flow sensors, users should choose suitable sensors according to their own needs. Many users have different requirements for the sensors they use, so the standards they select also vary. If professional data and results are required, national standards should be selected. However, if it is just for simple analysis as an instrument within an enterprise, enterprise standards can be selected. If you want to purchase flow sensors, everyone must consider carefully and choose sensors with guaranteed quality and good usability. Because many people think that new sensors have higher technology, this is a very one-sided idea. New products must possess mature technology to be good products. In many economic fields, accurate measurement of flow has become very important. Nowadays, sensors are basically used to measure the amount of flow. Sensors sense fluid flow and convert it into usable output signals. Installing sensors can make operations simpler and more convenient. The quantity of flowing objects passing through per unit time is called flow rate, and different flow sensors are used for different objects, often distinguished by the measured medium and the measurement method. Flow sensors are generally used for the flow of media fluids in industrial pipelines. Generally, there are various media such as gas, liquid, and steam. Several types of flow sensors can be universal for these various types of media. The first is the vortex flow sensor. Another is the ultrasonic flow sensor. With the development of ultrasonic technology, ultrasonic flow sensors can generally measure the flow of most flowing objects. Ultrasonic flow sensors also have various measurement methods, each with its own characteristics. We should select based on factors such as the properties of the measured fluid, flow velocity distribution, pipeline installation location, and requirements for measurement accuracy. Since industrial flow measurement generally faces difficulties in measuring large pipe diameters and large flows—because general flow sensors bring manufacturing and transportation difficulties as the measurement pipe diameter increases, leading to higher costs, increased energy loss, and installation challenges—ultrasonic flowmeters avoid all these disadvantages. The flow measurement accuracy of ultrasonic flow sensors is hardly affected by parameters such as the temperature, pressure, viscosity, and density of the measured fluid. They can also be made into non-contact and portable measuring instruments, thus solving the flow measurement problems of strongly corrosive, non-conductive, radioactive, and flammable/explosive media that are difficult to measure with other types of instruments.

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