Detailed classification process control instrument

The classification of the magnetic flap thermometer process control instrument DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

1. The classification of analog instrument DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 1) According to the can simulate exploration instrument is divided into pneumatic control instrument and electric control instrument. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

pneumatic control instrument is characterized by stable performance, high reliability, has a nature of explosion-proof performance, particularly applicable to petroleum, chemical industry and so on have explosive dangerous location. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

due to the development of electronic technology, electric control instrument explosion-proof problems solved, make its get rapid development and wide application. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

to get high speed development of electric control instrument is also compared with pneumatic control instrument has the following advantages: electrical signal transmission; no later Easy to realize complex regulating law; Remote centralized display and operation, so the anti-corrosion thermometer is suitable for the large-scale control system; Because of the energy is convenient, more suitable for medium and small production. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

although electric control instrument has developed rapidly, but still pneumatic control instrument have its status and development room, still accounts for about a third in the worldwide sales. Especially pneumatic instruments have a safe, reliable, work smoothly, and the advantages of large power, can be widely applied. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

( 2) In the form of analog instrument of the structure JiDeShi control instrument, unit combination only tables and components packaged control instrumentation. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

1) Tsuen type control instrument its structure characteristics is indicating and recording instruments as the center, additional pneumatic component or circuit to complete the control task. Because of low prices, and multi-usage, therefore is suitable for medium and small businesses and single machine automatic control system. Series of supporting system in the manufacturing of instruments in our country and TA series electronic regulator is JiDeShi control instrument. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

2) Unit combination instrument its structure characteristics is to divide the whole instrument is able to achieve a certain function of the number of units, adopting a unified standard signal between each unit, using the floating ball thermometer some few unit instrument can constitute a diverse and complex degree of automatic detection and control system. Electric unit combination instrument expressed in DDZ, expressed in QDZ pneumatic unit combination instrument. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

3) Components packaged control instrument its structure characteristic is made up of separate pieces of function component of complete sets of instrumentation. It is generally divided into two most, control and operation panel. Insert a number of components in the control box box, insert a number of components in the component box board, and mounted with high density, make full use of space. I in operations account for only a very small place. If we use the electronic screen ( Image) Concentration showed that the improved one contact. Information link between components in the control box adopts matrix terminal connection mode. Wiring work in matrix in the terminal connection box. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

assembly instrument also combination simulation technology and digital technology, and with the industrial control machine, programmable device, image display, etc. New technology tools. Therefore, it is particularly suited to high efficiency of large equipment automation. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

China's production of TF in the control side and Nz a mutual control components are packaged in a pack control device. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

2. Classification of several yu control instrument digital control instrument according to the engineering application is divided into six types: operation guiding device, a glass thermometer fixed value control device, control device with direct digital control, centralized control device and the DDZ - 年代,y - Unit 80 digital combination instrument. DEu magnetic flap | | glass thermometer thermometer floating ball | | glass thermometer thermometer two-color thermometer

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