Difference between mechanical pressure switch and electronic pressure switch

There are two types of pressure switches, mechanical and electronic. Mechanical pressure switch is divided into multiple types, and electronic type is also divided into multiple types. Here we say the difference between the mechanical pressure switch and the new and old electronic pressure switch.

Mechanical pressure switch switch working principle is: when the measured pressure exceeds the rated value, the free end of the elastic element has displacement, directly or through the comparison to push the switching element, changing the switching element on and off state, to achieve the purpose of controlling the measured pressure . An "electric contact pressure gauge" is generally used. This is an ordinary tube spring pressure gauge plus two sets of electrical contacts. It is possible to switch on the electrical contacts at a relatively high and low pressure so that the pressure is controlled between the upper and lower limits. This kind of electrical contact has a small capacity and can only open and close the control coil of the contactor. The control position on the pressure switch can be adjusted. The characteristics of this mechanical pressure switch are: cheap, simple to use, but the accuracy is low, the service life is short, the control point setting is cumbersome and the setting is inconvenient.

Electronic pressure switch, the principle of its work is: using a pointer pressure sensor to measure the pressure of the medium, and then convert the measured pressure into a digital signal to the programmable logic device PLC to control the upper and lower limit pressure, when the pressure reaches the preset The pressure output voltage drives the motor or other controllable device. This type of pressure switch has many disadvantages. Due to the use of a pointer type pressure sensor, the accuracy is not high and the observability is poor; the entire pressure switch is expensive and the controllability is tedious.

The latest technology of electronic pressure switches, using high-precision pressure sensors and temperature compensation technology, combined with micro-processing technology and advanced analog-to-digital converters designed and produced. This pressure switch has a built-in precision pressure sensor, which amplifies the pressure signal through a high-precision instrumentation amplifier, collects and processes data through a high-speed MCU, and uses a real-time LCD or LED digital display pressure to output the relay signal. The upper and lower limit control points can be freely set, stable and reliable. ,High precision. The disadvantage is the high price.

Mechanical pressure switches and electronic pressure switches each have their own advantages, which together promote the development of pressure measurement. China Proxy Instrument recommends that users choose according to their own needs.

Cement And Lime Silos

STORAGE FROM 10 TO 200mÂ³

Feiyya cement and lime silos are the equipped version of the traditional monolithic and telescopic silos. They have a diameter of 2.2. 2.4.2.6.3.0.3.2 and 3.6 m, can have a storage capacity from 10 to 200 mÂ³ and are suitable for storing and dosing cement, lime, ash, sand and similar materials. Sized to optimize transport costs, pre-cabled and pre-assembled, Feiyya silos are an economical solution suitable for a fixed installation, or for those who do not require specialized machinery for mobile sites such as horizontal silos.

Cement and lime silos are equipped with a gravimetric electronic weighing system with decreasing load cells which allow: (1) the unloading of the material by deduction weighing,( 1996031,2) the setting of automatic unloading programs,( 1996032,3) the automatic management of the vibrator,( 1996033,4) the control of the purchased quantities,( 1996034,5) the control of the remaining quantities.

Cement and lime silos are equipped with an adjustable timer discharge system which allows: (1) the discharge of the material in volumetric mode,( 1996035,2) the setting of the timer scale in seconds, minutes or hours,( 1996036,3) the additional management of the discharges in fully manual start/stop mode.

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Wuxi Feiyiya Environmental Protection Technology Co., Ltd. , https://www.fefinegrille.com