IA, IM series of electric devices. Is the world's leading smart products. Advanced large-scale digital integrated chip, professional digital torque sensor and digital displacement sensor, full Chinese menu operation and display, mechatronic structure design, created its perfect function, excellent performance, lightweight and beautiful, easy to debug, Easy to operate. And the opening and closing pieces supporting the composition of the implementation of the unit, used in power plants, petroleum, steel, chemicals, pipelines, sewage treatment and other automatic control systems, both to meet the frequent regulation and control, but also to meet the requirements of intermittent control. 
The implementation of this product code and name of the standard: Q / ZTK 01-2009 "electric device" 

1, the main features of electric devices:
* The use of large-scale digital integrated chip, powerful, high accuracy level. 
* Mechatronics design, small size, light weight. 
* The use of a professional pressure sensor to measure the torque value of the output shaft, thus increasing the accuracy of the torque measurement, error rate ≤ 5% and can be dynamically monitored, displayed torque, stall alarm. 
* The displacement sensor uses the Hall sensor, and digitally processes the pulse signal, so the basic error of the valve positioning accuracy is 1 level accuracy. 
* Electric device function, parameter setting, commissioning and on-site electric operation are set by hand-held infrared remote control, without opening the cover. 
* Full Chinese and character display, menu operation, intuitive and clear, easy to learn, easy to understand, easy to operate. 

2, The function of electric device:　　
* Travel limit protection 
* Torque limit protection 
* Status indication contact function　　
1) Midway limit 2) The electric device is open 3) The electric device is closing 4) The electric device is running 5) Stop locally 6) Control in place     
7) Remote Control 8) Open Valve Interlock 9) Close Valve Interlock 10) Handwheel Operation 11) Open Torque Trip 12) Close Torque Trip 13) Tripped Torque Trip 

* Valve Alarm Function　　　
1) Torque alarm function a, off the direction of the moment b, open the direction of torque 
2) block alarm function a, turn off the direction of blocking b, open the direction of blocking 

* control alarm 1) emergency (ESD) alarm protection 2) Protection 

* Electric device alarm function　
1) Motor overheat protection 2) Control box overheat protection 3) Low battery protection 
4) Internal power failure protection 5) Power phase loss, phase loss protection 6) Internal system fault protection 
7) Current valve position signal Loss of protection 8) Local wiring fault alarm 

* Instantaneous reverse protection function * Local control jog / self-holding selection function 
* Contact mode selection function * External interlock protection function * Condition control protection function 
* Two-wire control protection function * * torque bypass the ESD protection beyond the protection provided power interruption * 
* * additional contact function indicating the remote setting function * * Three-phase actuator display function Automatic discrimination function of the source phase sequence