Pressure sensor failure solution and correct installation

Pressure sensor failure solution and correct installation

With the development of electronic computer technology and electronic components, the pressure remote measurement system is moving towards high intelligence, automation, high precision, low-intensity and miniaturization. Intake pressure remote measurement system consists of terminal equipment and line equipment (pressure sensor, terminal The equipment is located in the office and its function is to supply power to the line equipment. It automatically measures, displays and prints the pressure value of the cable. Line equipment is set up on the road, its function is to convert sexuality into electric signal to the terminal equipment, and the line equipment is the main means of ingesting pressure information, it occupies a pivotal position in the pressure remote measurement system. Therefore, the quality of the line equipment, the level of accuracy, there is a direct relationship between reducing the maintenance workload and simplifying the pressure inspection process. This article mainly describes the failure of the pressure sensor and the correct installation method

Pressure sensor failure solution:

(1) Electronic means measure the absolute pressure so that the control of the state of inflation on the line is more complete and continuous.

(2) Leakage points can be estimated in advance from both dynamic and static aspects.

(3) Determining the time-dependent change of the pressure in the cable, so that the time of inflation can be estimated. That is, when a negative variable occurs, the amount of reduction can be determined in advance, so the final pressure value of the pressure sensor fault segment and the corresponding diffusion are determined. time.

(4) Verify the gas path of the cable.

Pressure sensor correct installation method:

(1) Verify the frequency response of the pressure sensor under normal atmospheric pressure and standard temperature conditions with appropriate instruments.

(2) Verify the correctness of the pressure sensor code and the corresponding frequency response signal.

2. Determine the specific installation location

In order to determine the number and the specific installation location of the pressure sensor, it is necessary to consider each inflation section of the inflatable net.

(1) The pressure sensor must be installed along the cable, preferably at the cable gland.

(2) Each cable shall be equipped with not less than four pressure sensors, close to the two pressure sensors of the telephone exchange, and shall not be more than 200m apart.

(3) Install one at the beginning and at the end of each cable.

(4) One branch point should be installed for each cable. If two branch points are close to each other (less than 100 m), only one can be installed.

(5) One cable change method (heading, underground) should be installed

(6) For unbranched cables, because the cable pattern of the base line is consistent, the installation distance of the pressure sensor is not to be 500m and the total number is not less than 4.

(7) In order to easily determine the point of failure of the pressure sensor, in addition to installing the pressure sensor at the starting point, 150 to 200 meters from the starting point, but also to install an additional one of course in the design, must consider the economic and technical factors, do not need to install Where pressure sensors are located, they should not be installed.

Along with the production of pneumatic telemetry equipment, pressure sensors are also used on cables. For the normal operation of the entire air pressure telemetry system, the pressure sensors need to be matched with the air pressure telemetry equipment to coordinate the work. From the air pressure telemetry system, there are two types of work methods: “select line and select points” and “select line”. Then there must be a reasonable solution to the pressure sensor failure.

Foshan Yizhong Sensing Instrument Co., Ltd. is referred to as “Zhongzhong Sensing” and is located in Foshan, one of the fastest and most mature areas in economic and technological development in the country. It is a professional R&D, production, sales, and service of various types of pressure sensors and intelligent control. System integration of quality manufacturers. Our factory collects the advantages of similar products at home and abroad, known for anti-jamming, waterproof, anti-overload, short circuit protection and other technologies, with advanced process equipment and perfect testing methods, and strict guarantee of product manufacturing quality.

Our company has a sensor engineer with strong theoretical basis and rich practical experience. We provide professional selection for your company and provide you with the most JIA solutions.

Our products are widely used in rubber and chemical fiber machinery, food machinery, hydraulic equipment, water jet equipment, water treatment equipment, transmission pipelines, automatic constant pressure control, medical equipment and other areas of automated measurement and control; intelligent pressure display control instruments are widely Used in constant pressure control systems; high-precision weighing load sensors are also widely used in industrial automation today, such as electronic weighing instruments, electronic test benches, industrial ingredients, hanging hooks, daily weighing instruments and other control systems.

Since the establishment of the company, a public sensing company has followed the development policy of “first-rate talents, first-class management, first-class technology, and first-class service”, and constantly absorbs advanced sensor R&D and manufacturing technologies at home and abroad, and performs intelligent transmission in industrial intelligence. High-temperature melt pressure sensors, micro-pressure measurement, etc., are used in parallel with the technological quality of similar foreign products.

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