SENSORIK switch Germany SENSORIK model SENSORIK price

SENSORIK switch is a switch that can sense temperature and convert it into a usable output signal. Temperature switches are the core component of temperature measuring instruments, with a wide variety of types. They can be divided into two major categories based on the measurement method: contact and non-contact. Based on switch materials and electronic component characteristics, they are classified into resistance thermometers and thermocouples.

SENSORIK switch features

Currently, baffles can be designed according to the water flow rate to reduce water resistance generated when water flows through the flow switch, thereby reducing head loss in the water system. However, baffle-type switches still suffer from fatigue due to long-term impact from water flow, and setpoint drift may occur even if the flow value is calibrated at the factory. They are typically used where precise protection of flow values is not required, i.e., for flow interruption protection in case of sudden stoppage of water flow in pipes. There are very few designs specifically for water-source heat pump units in China. The baffle type is specifically developed for water flow monitoring in water-loop/ground-source heat pump air conditioning units. It is equipped with different baffles for different pipe diameters. The water resistance of each baffle does not exceed 0.5 meters of water column, which is significantly lower than that of target-type switches. Each baffle-type flow switch 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 modification to the baffle. In addition, the pressure rating of the baffle-type water flow switch is greater than 25bar, making it a low-cost water flow switch for water-loop heat pump units with less stringent 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 heat exchanger freeze-up caused by low water flow. Flow switches can also protect against heat exchanger freeze-up when water flow decreases 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 switch operates very stably without floating issues similar to those of target flow switches. Feedback from years of use has not revealed any failures of the differential pressure switch itself.

SENSORIK switch 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, and then converted into flow rate. Based on 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 decade 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. When linked with a level gauge, they can measure open-channel flow. Using ultrasonic flow measurement does not require installing measuring elements in the fluid, so it does not change the fluid's flow state, generates no additional resistance, and installation and maintenance of the instrument do not affect the operation of production pipelines, making it an ideal energy-saving flowmeter. Industrial flow measurement commonly faces difficulties in measuring large pipe diameters and high flow rates. This is because general flowmeters encounter manufacturing and transportation difficulties as the measurement pipe diameter increases, leading to higher costs, greater energy loss, and installation challenges. Ultrasonic flowmeters avoid all these disadvantages. Since various types of ultrasonic flowmeters can be installed externally on the pipe for non-contact flow measurement, the instrument cost is basically unrelated to the diameter of the measured pipe. In contrast, the cost of other types of flowmeters increases substantially with diameter. Therefore, the larger the diameter, the more superior the cost-performance ratio of ultrasonic flowmeters compared to other types with similar functions. They are considered excellent flow measurement instruments for large pipe diameters. 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.

SENSORIK switch selection

When selecting a flow switch, users should choose a suitable switch based on their own needs. Many users have different requirements for the switches they use, so the selected standards also vary. If professional data and results are required, national standards should be selected. However, if it is only used as a simple instrument in an enterprise for rough analysis, enterprise standards can be selected. If you intend to purchase a flow switch, please consider carefully and choose switches with guaranteed quality and good usability. Many people assume that new switches have higher technology, which is a one-sided view. New products must possess mature technology to be considered good products. In many economic sectors, accurate flow measurement has become very important. Nowadays, switches are basically used to measure flow quantities. The switch senses fluid flow and converts it into a usable output signal. Installing a switch makes operation simpler and more convenient. The quantity of flowing objects passing through per unit time is called flow rate. Different flow switches are used for different objects, often distinguished by the measured medium and the measurement method. Flow switches 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 switches can be universal for these various types of media. The first type is the vortex flow switch. Another type is the ultrasonic flow switch. With the development of ultrasonic technology, ultrasonic flow switches can generally measure the flow of most flowing objects. Ultrasonic flow switches 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 accuracy requirements. Since industrial flow measurement commonly faces difficulties in measuring large pipe diameters and high flow rates (because general flow switches encounter manufacturing and transportation difficulties as the measurement pipe diameter increases, leading to higher costs, greater energy loss, and installation challenges), ultrasonic flowmeters avoid all these disadvantages. The flow measurement accuracy of ultrasonic flow switches 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 flow measurement problems for highly corrosive, non-conductive, radioactive, and flammable/explosive media that are difficult to measure with other types of instruments.

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