Analysis of Several Basic Functions of Electric Operators-Chemical Instrument Network

Electric operatorIt is an auxiliary unit in the S series instrument. It is used in conjunction with electric actuators and can also be used in conjunction with DDZ-III electric unit combination instruments. It is widely used in industrial sectors such as thermal power plants, steel plants, chemical plants, and light industry. It mainly consists of membrane switches, relays, solid-state display meters, and control circuits. Through membrane button switches and relays, it can switch and operate from "manual" to "automatic" (automatic to manual) without disturbance. It is widely used in process control systems in industries such as power, metallurgy, petroleum, chemical, and light industry.

Electric operators are used to directly drive (or electrically driven pneumatic) actuators, and can generally be divided into hard hand operation and soft hand operation. Hard hand operation refers to button operation (outputting strong electricity) that directly drives the actuator, while soft hand operation refers to button operation that outputs (electrical) signals through another device (usually an amplifying device) to drive the actuator.

Briefly describe the basic functions of an electric operator:

1. After power on, it is in manual mode. Pressing the increase/decrease button drives the valve switch. When connected to pneumatic and electric actuators and regulators, it can form a display operating system.

2. There are indicator lights that can display the automatic and manual status of the system.

3. When used in conjunction with a regulator, it can achieve worry free bidirectional switching.

4. The operator is equipped with a dual needle meter head, which indicates the input and output values of the operator separately at the top and bottom. The two indicator lights have three status indications: green light in automatic mode, red light in manual mode, and flashing red light in forced manual mode.

More electric operators can accept external switch signals to automatically switch from automatic to manual operation, which is called forced manual. When the external signal is released, it can return to its original state, and both manual states of the operator (manual and forced manual) can generate status signals to be input to the regulator, so that its output tracks the output of the operator. The two manual states of the operator are operated through the same up and down buttons to avoid accidental operation.

more aboutElectric operatorWelcome everyone to continue following our company!