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Home > Technology List > TE M3200 pressure sensor new M3200 pressure sensor asks the market

TE M3200 pressure sensor new M3200 pressure sensor asks the market

Published time: 2019-07-03

Sensors are an integral part of most HVAC cooling (HVACR) systems, helping them maintain a comfortable indoor climate and increase the energy efficiency of HVAC systems.They can also integrate HVAC systems with building automation systems.

Traditional HVAC systems use pressure and temperature sensors and switches to control the basic operations of the system, such as opening or closing the system, opening or closing valves or vents.Because HVAC systems must become more efficient, there is an urgent need for more fine-grained control of different subsystems.This has led to numerous technological advances, such as variable refrigerant flow, variable-speed motors and blowers, electronic expansion valves, and other control methods for fine-tuning systems and reducing total energy consumption.

As the authorized distributor of TE Connectivity, Heilind provides relevant services and support to the market. In addition, Heilind also supplies products from a number of top manufacturers in the world, covering 25 different component categories.

TE Connectivity (TE) sensor family of excellence

Understand the function of pressure sensor in industrial instrument

Wang daheng, a famous scientist and academician of the Chinese academy of sciences and Chinese academy of sciences, once pointed out that "machines are tools to transform the world, and instruments are tools to understand the world".Instruments are "multipliers" of industrial production, "pioneers" of scientific research, "combat effectiveness" of military affairs, and "materialized judges" of modern social activities.It is self-evident that instrument plays a very important role in promoting the development of science and technology and national economy.

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For industrial applications, instrumentation is the "five senses" of all equipment and transmission channels, and is one of the most important components of modern factory construction.Through the accurate data provided by the instrument, the status of industrial system can be known more timely.

So how about the technical index, evolution and application of pressure sensors in industrial instruments?TE will be analyzed in detail here.I believe that through this understanding, the market will pressure sensors in the field of instrumentation applications have more understanding and understanding.

The development trend of pressure sensor in industrial instrument industry

The pressure sensor development trend, the most important thing is to meet the industrial instrument field development and innovation requirements.High precision, miniaturization, intelligence and data are the development trend of instrumentation.With the complex evolution of the whole industrial system, more and more instruments with higher precision are needed to accurately measure and obtain various data and information of the whole system.Secondly, due to the limitation of site location and weight, the products are increasingly required to be miniaturized and miniaturized.Third, with the rise of the Internet of things, 5G technology and other networking technologies, more data and information need to be collected for instruments and meters, which not only requires more demands on the overall collection quantity, but also requires more accurate and diverse data or information collected for each node.

According to different working principles, pressure sensors can be divided into: metal strain gauge pressure sensor, semiconductor strain gauge pressure sensor, silicon piezoresistive pressure sensor, inductive pressure sensor, capacitive pressure sensor, resonant pressure sensor, etc.

One of the most widely used is the silicon resistance pressure sensor, whose main principle is to use the piezoresistive effect of silicon to convert the change of the inductive force on the mechanical component into the change of the resistance quantity.The silicon sensors, which produce a small change in resistance when stressed, are typically made into a wheatstone bridge, amplified by subsequent instrument amplifiers and transmitted to the back-end processing circuit.

How to choose the right pressure sensor

There are many kinds of industrial instruments, and each kind of products has different requirements for pressure sensors according to specific characteristics and application fields.

When selecting sensors, it is a better choice to choose a supplier with a wide range of products. Richer products mean more choices and solutions for customers.TE Connectivity(TE), as one of the world's leading connector and sensor companies, continues to provide a wide range of products to the industry.It manufactures pressure sensors and transmitters for industrial, test and measurement, automotive, medical and other fields, and provides various materials, output modes, sensor technologies and third-party certification, which can meet customers' requirements for liquid or gas pressure measurement.

TE hundreds of pressure sensors have their own characteristics and can cover more application fields, providing pressure sensors from sensor elements to system packages, from plate-mounted pressure elements to pressure transmitters with amplified output and complete package.Based on semiconductor micromachining (MEMS) technology and silicon strain gauge technology, TE products can measure pressures ranging from a few inches of water (<5mbar) to 100K psi (7K bar).For general industrial applications, medical, HVACR, off-road vehicles/heavy equipment, altimeter/navigation systems and other applications to create reliable and cost-effective pressure sensor solutions.

How can pressure sensors meet instrument requirements

Taking TE stainless steel isolated pressure sensor as an example, this paper explains how the pressure sensor can meet the needs of industrial instrument development.

First of all, in terms of parameters, the range of this series of products is quite rich, ranging from 0-1 PSI to hundreds or even thousands of PSI, which can cover a variety of liquid and gas pressure measurements. At the same time, the higher range also means that the device has higher reliability.

Secondly, the hysteresis and repeatability are up to ±0.02%, the thermal hysteresis is up to ±05%, and the long-term stability is up to ±01%. The accuracy can be guaranteed in the range of a few thousandths, which brings reliable guarantee for accurate measurement and avoids the influence of the sampling end error on the accuracy of the whole system.This has outstanding advantages in semiconductor industry and precision gas flowmeter industry.

Third, the wider the range of temperature compensation (- 20 ℃ to 85 ℃) and working temperature range (- 40 ℃ to 125 ℃), because the instrument need to be in the face of complicated field environment, under low temperature and high temperature stable working state, can ensure that the product reliability and adaptability, even in cold or hot steelmaking site in northeast China, the sensor can work normally.

Fourth, support digital and analog signal output.Analog and digital sensors are very different from each other in terms of technology, interface and output signal, so they can be selected according to customer requirements.Meanwhile, in terms of digital interface, TE also provides different selection modes including SPI, I2C, and even wireless transmission system.Users can choose according to the system functions of reading and processing signals.

Fourth, support a variety of connections to meet different application needs of customers.Although TE provides a standard configuration, it can also be customized to the specific requirements of the user.Threaded connections can be male and female and can be designed for tapered, o-ring or metal face to face seals.

Fifthly, the flat film design scheme is provided.In certain medical, chemical, food processing and other instruments, there should be no cavity or gap around the sensor diaphragm in contact with the medium to prevent residual foreign bodies.TE's flat membrane pressure sensor can meet a variety of demanding user applications.

Sixth, there are many types of materials for customers to select.TE selects pressure Chambers and joints of various materials to meet different environments to be tested, including 17-4ph stainless steel, 316L, alloy 718, alloy C276 and titanium alloy.For example, 17-4ph stainless steel is suitable for hydraulic oil, air (nitrogen, oxygen, etc.), natural gas, freon, paint, steam, plastic molding, diesel, carbon dioxide and other gases and special liquid applications.316 L stainless steel is suitable for hydrogen, chlorinated water, ammonia refrigerant, petroleum products (crude oil or refined oil) and other applications.

All application-oriented, is the purpose of TE product development.

By covering standards of different ranges, resolutions, packages and interfaces, TE has built a wide portfolio of product lines to meet different scenarios.

85BSD series pressure sensors

85BSD series pressure sensors are widely used in TE and the industry, with distinctive product features and advantages, widely used in various industrial instruments and meters.

85BSD pressure sensor is a compact, medium compatibility of good silicon piezoresistive pressure sensor, packaged in 316L stainless steel shell.The 14-digit digital pressure sensor supports the I2C and SPI output protocols, provides a supply voltage of 3.3 or 5.0Vdc, and can be welded or directly threaded for process connection.The sensor transfers the pressure from the 316L stainless steel isolation diaphragm to the sensor element through silicon oil.85BSD pressure sensor products can be widely designed and applied to high performance, low pressure range applications.Due to the adoption of digital processing technology, TE specially customizes ASIC chip to realize temperature compensation and deviation correction of sensor, and can provide two output modes of 10-90% range or 5-95% range, so as to facilitate data acquisition and processing by different customers.

In addition to realizing industrial automation by providing sensors matching with instruments and meters, TE has also launched a number of transmitters and wireless modules, which are directly applied in industrial automation field by virtue of its powerful system integration ability.

M3200 series pressure transmitters

TE M3200 pressure transmitter with analog or digital output, suitable for measuring liquid or gas pressure, as well as sewage, steam, mildly corrosive liquid and other special media.The pressure chamber of the M3200 pressure transmitter is made of 17-4ph stainless steel.TE's proprietary micromelt technology comes from demanding aerospace applications.The technique USES high temperature microfused glass to attach the piezoresistive silicon strain gauge to the stainless steel isolation film.The scheme not only achieves the compatibility of media reliably and efficiently, but also provides very high long-term stability and avoids the p-n junction effect of pressure transmitter in the traditional micromachining process.

This product is especially suitable for medium and high volume industrial and commercial customers.The optional pressure range ranges from 0 to 100 to 5,000 PSI, supporting a wide range of precision options.With five standard analog output signals and 14-digit digital pressure and 11-digit digital temperature output signals, the higher integration level eliminates the need to design additional interface circuits and temperature sensors.In addition, 4-20 mA output signal can be directly provided to facilitate customer access to traditional industrial systems.

M5600 wireless pressure sensor

The M5600 pressure sensor is a pressure sensor with micro - melting technology and modular wireless signal.The 24-bit ADC wireless digital output sensor eliminates signal hardwiring and provides remote process control and monitoring via bluetooth 4.0 technology.The products are suitable for measuring liquids and gases, as well as special media such as sewage, steam and mild corrosive liquid.The isolation material of the pressure port is made of 17-4ph or 316L stainless steel, and there is no sealing ring, welding seam or any organic material between the sensor and the pressure medium, so it has excellent durability and reliability.The M5600 pressure sensor has good wind and rain resistance, superior to the latest CE standard for heavy industry.This wireless pressure sensor is especially suitable for medium - and high-volume customers.Due to the wireless bluetooth connection, users can directly check the data in the APP terminal of the mobile phone, which is in line with the development trend of smart factory in the future.

The biggest competitive advantage of TE products and the purpose of TE is to provide customers with the most suitable products for different application scenarios and to provide and support customized and modular products and services by adopting different sensor combinations and different sensor characteristics.

As the authorized distributor of TE Connectivity, Heilind provides relevant services and support to the market. In addition, Heilind also supplies products from a number of top manufacturers in the world, covering 25 different component categories.

 

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