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Find Celsus.
Certhys is an imported brand from Canada, but has a R&D and production base in Beijing. The sensors are imported from the Canadian headquarters and assembled at the Beijing factory. Therefore, it can achieve imported international quality, but it is the best domestic brand.
There is the SEP series, which perfectly combines low cost and reliability. There are also V-Series smart transmitters. **All between 1800-2600.
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Rosemount, E+H, estimated to be cheaper with E+H.
Yokogawa, Honeywell is basically a meter with program control and adjustment.
i am living in mississauga, ontario.
never heard of Sailsors Instruments
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The imported brands are E+H, Rosemont.
Cheap, no.
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To support domestic products, Shenyang Tektronix Automation's pressure transmitter is extremely cost-effective.
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Yueqing Youke Automation Instrument**** detailed consultation can be seen in our company**.
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The pressure transmitter belongs to the high-precision instrumentation, find Wenzhou Zhongda automation instrument, his company's pressure transmitter has been used, good.
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Rosemont, Siemens, Ganges.
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Hello! What is the cheapest pressure transmitter DD8702-600BAR-Techor brand**?
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Well-known brands of pressure transmitters follow the quality or brandRosemount (an Emerson subsidiary), Honeywell, EJA, ABB, E+H, etc
Pressure Transmitters:
In general, a pressure transmitter is mainly composed of three parts: a load cell sensor (also known as a pressure sensor), a measurement circuit and a process connection. It can convert the physical pressure parameters such as gas and liquid felt by the load cell sensor into standard electrical signals (such as 4 20madc, etc.), and supply secondary instruments such as indicating alarms, recorders, and regulators.
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Of course, the Rosemount pressure transmitter and the Yokogawa pressure transmitter are used by a lot of people, and the feedback is good.
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There are many brands of pressure transmitters, foreign brands are high, and I personally feel that the most practical products are Sino-US joint ventures, such as Mike, Tianshui Huatian, etc. If you choose a domestic brand, Hong Kong Zhengrun is a smart choice! Hehe!
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Yokogawa, Rosemount, the compact type of pressure transmitter is known as WIKA.
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In fact, the answer to this question can not get what we think, many of them are factory self-evaluation, and they will definitely not say that their products are poor, so the question is, how to choose.
First: in terms of production, at least the enterprise must have its own production qualifications and have been recognized by the state.
Finally, I believe that judging it as good or bad should also have a clear definition!!
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Must be Rosemount, E+H, ABB, Yokogawa EJA
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Foreign ones must be Rosemont, E+H, ABB, Yokogawa EJA, domestic Baoji Mike, Shanghai Jingfu (J&F), Chongqing Chuanyi, these are all strength manufacturers!
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There are too many domestic brands, but not many outstanding ones. We have used the products of the Baoji Sensor Research Institute, and they are not bad. This is the first specialized pressure sensor research institute in China, which is used to diffuse silicon.
It must be domestic, and it is best to communicate with their technicians before using it. Things are good, and people are telling the truth.
A pressure transmitter is a device that converts pressure into pneumatic signals or electric signals for control and remote transmission.
It can convert the physical pressure parameters such as gas and liquid felt by the load cell sensor into standard electrical signals (such as 4 20madc, etc.), and supply secondary instruments such as indicating alarms, recorders, and regulators for measurement, indication and process adjustment.
Pressure transmitter is the most commonly used sensor in industrial practice, which is widely used in various industrial automatic control environments, involving water conservancy and hydropower, railway transportation, intelligent buildings, production automation, aerospace, military industry, petrochemical, oil wells, electric power, ships, machine tools, pipelines and many other industries.
There are two types of pressure transmitters: electric and pneumatic. The uniform output signal of the electric type is a DC signal such as 0 10 mA, 4 20 mA or 1 5 V. The pneumatic uniform output signal is a gas pressure of 20 100 Pa.
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There are a lot of pressure transmitters now, and the market is also very chaotic. At present, the quality service of Shanghai Welltech, Shanghai Automation, Shanghai Menghui is still good, and the imported Rosemount, E+H, Siemens, Yokogawa, Honeywell, ABB and so on are also available.
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The domestic pressure transmitter simply uses two words to describe the garbage, one word, put it on to know that this is a pressure transmitter, how long does it take? It's like a jumping band, you always have to change it! Either choose tecsis or wika, but the life of wika is still not as guaranteed as ecsis!
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I have used Shanghai Hengjun automated pressure and differential pressure transmitters, a total of more than 50 units, 10 years of use, now almost 4 years, no big problem, indicating that there is no problem with the domestic transmitter, it can be used normally. The main occasions are very high, Rosemont, EJA one is 4K-5K, and the domestic one is much cheaper. I think the domestic cost performance is some.
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It is still imported well, long life, recommend German tecsis, high precision, tecsis is a world-renowned control expert. Since its foundation in 1921, tecsis' product line has expanded from a single product to include pressure, temperature, force and switches. Pressure gauges, pressure transmitters and pressure switches have a high reputation.
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Depending on what industry you want to use it in, there are only two pressure transformer sensors that can be fully produced by yourself in China: Shangziyi (Rosemount's technology), Wiltai (ABB's technology), from the production history, Shangziyi has a long history, and the actual application performance is estimated to be more, which we use in small projects, such as knowing chemical and metallurgical and cement plants. The inferiority power plant does not use domestic production, but imports.
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It is recommended that the domestic pressure transmitter is best not used, this money is really not saved!
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The products supplied by Foshan Yihong Automation are very durable.
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Shanghai Welltech, using ABB technology, should be regarded as the best in China.
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Microphone transmitters, your first choice!
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The pressure transmitter Shanghai Welltech is very good.
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First, the principle is different
1. The pressure sensor resistance strain gauge is one of the main components of the piezoresistive strain sensor. The working principle of metal resistance strain gauge is the phenomenon that the resistance value changes with mechanical deformation due to the strain resistance adsorbed on the base material, which is commonly known as the resistance strain effect.
2. The ceramic pressure sensor is based on the piezoresistive effect, the pressure directly acts on the front surface of the ceramic diaphragm, so that the diaphragm produces a slight deformation, and the thick film resistance is printed on the back of the ceramic diaphragm and connected into a Wheatstone bridge, due to the piezoresistive effect of the varistor, the bridge produces a voltage signal that is highly linear proportional to the pressure and proportional to the excitation voltage.
3. Diffusion silicon pressure sensorTianhui sensorsThe working principle is also based on the piezoresistive effect, using the principle of piezoresistive effect, the pressure of the measured medium directly acts on the diaphragm of the sensor (stainless steel or ceramic), so that the diaphragm produces a micro-displacement proportional to the pressure of the medium, so that the resistance value of the sensor changes, the electronic circuit is used to detect this change, and the output of a standard measurement signal corresponding to this pressure is converted.
4. The electrical components of the pressure transmitter to feel the pressure are generally resistance strain gauges, which are sensitive devices that convert the pressure on the test piece into an electrical signal. There are two most widely used types of electrical strain gauges: metal resistance strain gauges and semiconductor strain gauges. There are two types of metal resistance strain gauges: wire strain gauges and metal foil strain gauges.
5. The strain gauge is usually tightly bonded to the mechanical strain matrix through a special adhesive, and when the stress changes under the force of the matrix, the resistance strain gauge also produces deformation together, so that the resistance value of the strain gauge changes, so that the voltage applied to the resistance changes.
Second, the related applications are different
1. Pressure sensors are mainly used in: booster cylinders, boosters, gas-liquid booster cylinders, gas-liquid boosters, presses, compressors, air conditioning and refrigeration equipment and other fields.
Tenhub's pressure transmitters are durable
1) Intelligent: Due to the emergence of integration, some microprocessors can be added to the integrated circuit, so that the transmitter has the functions of automatic compensation, communication, self-diagnosis, logic judgment and so on.
2) Integration: Pressure transmitters have been increasingly integrated with other measurement transmitters to form a measurement and control system. Integrated systems increase the speed and efficiency of operations in process control and factory automation.
3) Miniaturization: The market demand for small pressure transmitters is increasing, this small transmitter can work in extremely harsh environments, and only requires little care and maintenance, and has little impact on the surrounding environment, and can be placed in various important organs of the human body to collect data, without affecting the normal life of people.
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Standard type pressure transmitter**350 yuan, Taiwan Matsuno Electric, 027-83264532
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The brand decided**, the American Mack transmitter does not have this**.
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Brother ** is based on technical parameters, **than** is incomparable.
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The specific purchase should depend on the use of the product, there are many domestic manufacturers, and there are many products.
It's basically the same, mainly to find a good after-sales service.
In short: the import is good, but the most expensive.
Domestic, it's okay, it's okay to use it for a year or two.
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I am a pressure transmitter, let me tell you the pressure transmitter **1 small pressure transmitter 360 yuan, 2 ultra-small pressure transmitter 380 yuan, 3 economic pressure transmitter 450 yuan, 4 sanitary (flush membrane) pressure transmitter 1200 yuan, 5 pressure transmitter (e+h shape) 680 yuan, 6 intelligent pressure transmitter 1800 yuan.
71151 3351GP pressure transmitter (capacitive) **12600 yuan, 81151 3351AP absolute pressure transmitter (capacitive) **1600 yuan, 91151 3351LT flanged pressure transmitter (capacitive type) **1600 yuan, 101151 3351GP capillary remote flange pressure transmitter (capacitive type) (**1800 yuan.
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The cheapest I've ever seen is 200 yuan a piece.
The most expensive one I've seen is 45,500 yuan.
The key is to look at the technical indicators and look at the brand.
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The key is to look at the technical indicators and look at the brand.
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Attention, everyone!!
Good goods are not cheap, cheap goods are not good!!
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Specifically, you have to look at the working conditions you use, the working conditions are different, the use is different, and the ** is also different.
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You can find me, the parameters are not the same, ** is not the same.
Differential pressure transmitters measure the difference in pressure between two gases or liquids (inside a container). >>>More
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1. Inspection of the measuring part of the transmitter.
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Inspection & Testing
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