German AMSYS sensors AMSYS models AMSYS prices

AMSYS sensors are sensors that can sense temperature and convert it into usable output signals. Temperature sensors are the core component of temperature measuring instruments and come in a wide variety. They can be divided into two major categories based on the measurement method: contact and non-contact. Based on sensor materials and electronic component characteristics, they are classified into resistance thermometers and thermocouples.

AMSYS sensor features

Currently, baffles can be designed according to the water flow rate to reduce water resistance generated when water flows through the flow sensor, thereby reducing head loss in the water system. However, due to long-term impact from water flow, baffle-type sensors still suffer from fatigue issues, and setpoint drift may occur even if the flow value is calibrated at the factory. They are typically used in applications where precise flow protection values are not required, i.e., for break-flow protection against sudden interruption of water flow in pipes. There are very few designs in China specifically for water-source heat pump units. 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 sensors. Each baffle-type flow sensor is equipped with pipe fittings identical to those of the water-loop heat pump unit's water pipes. On-site installation only requires connecting to the water pipe without any modification to the baffle. Additionally, the pressure rating of the baffle-type flow switch exceeds 25bar, making it a low-cost flow switch for water-loop heat pump units with less stringent water flow requirements. Feedback from use in water-loop/ground-source heat pump units shows that differential pressure switches can effectively identify problems in the on-site installation of water pipelines for water-loop heat pump units, completely avoiding heat exchanger freeze-up caused by low water flow. Flow sensors can also protect against heat exchanger freeze-up due to reduced water flow caused by clogged water filters. Furthermore, water pipeline 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 pipeline, the flow sensor operates very stably without floating issues similar to those seen in target flow switches. Feedback from years of use has not revealed any faults in the differential pressure switch itself.

AMSYS sensor principle

Basic principles and types of ultrasonic flowmeters: When ultrasound propagates in a flowing fluid, it carries information about the fluid's flow velocity. Therefore, the fluid's flow velocity can be detected by receiving the ultrasound, which is 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 or generate additional resistance. Instrument installation and maintenance 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 incur manufacturing and transportation difficulties, increased costs, and greater energy loss as the measurement pipe diameter increases. Ultrasonic flowmeters avoid these disadvantages. Since all types of ultrasonic flowmeters can be installed externally for non-contact flow measurement, the instrument cost is basically independent of the measured pipe diameter. In contrast, the cost of other types of flowmeters increases substantially with diameter. Therefore, for larger diameters, ultrasonic flowmeters offer a better cost-performance ratio than other types with similar functions. They are considered superior instruments for large-diameter flow measurement. Doppler method ultrasonic flowmeters can measure the flow of two-phase media, making them suitable for measuring dirty flows such as sewage and wastewater. In power plants.

AMSYS sensor selection

When selecting flow sensors, users should choose suitable sensors based on their own needs. Many users have different requirements for the sensors they use, so the selected standards vary. If highly professional data and results are required, national standards should be selected. However, if the sensor is only used as a simple instrument in an enterprise for rough analysis, enterprise standards can be selected. If purchasing flow sensors, careful consideration is essential, and one should choose sensors with guaranteed quality and good usability. Many people assume that new sensors have higher technology levels, 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, sensors are basically used to measure flow quantities. Sensors sense fluid flow and convert it into usable output signals. Installing sensors makes operation simpler and more convenient. The quantity of flowing objects passing through per unit time is called flow rate. Different flow sensors are used for different objects, and flow sensor types are often distinguished by the measured medium and measurement method. Flow sensors are generally used for the flow of media fluids in industrial pipelines. Common media include gases, liquids, and steam. Several types of flow sensors can be universally used for these various media. The first type is the vortex flow sensor. Another type 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 have various measurement methods, each with its own characteristics. Selection should be 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 sensors incur manufacturing and transportation difficulties, increased costs, and greater energy loss as the measurement pipe diameter increases—ultrasonic flowmeters avoid 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 flow measurement problems for strongly corrosive, non-conductive, radioactive, and flammable/explosive media that are difficult to measure with other types of instruments.

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