Characteristic：
Compared with conventional products, the 1.100 series intelligent electric valve positioner has many unique and practical advantages, for example:
2. simple installation, automatic initialization (zero and automatic adjustment of travel range)
3. the operation is simple, using three buttons and double line LCD display, you can achieve simple operation and programming
4. high quality control is due to online adaptive programs
5. when the steady-state operation, gas consumption can be ignored
6. close closure function (to ensure maximum seating pressure on seat)
7. through simple configuration, many functions (such as parameterization and limit values) can be implemented
8. self diagnostics for valves and actuators
9., the direct stroke and angle travel actuator uses the same type of valve positioner, easy to operate - the use of three buttons and double line LCD display, can achieve simple operation and programming
10. high quality control is due to online adaptive programs
11. when the steady-state operation, gas consumption can be ignored
12. close closure function (to ensure maximum seating pressure on seat)
13. through simple configuration, many functions can be implemented (for example, parameterized limit values)
14. self diagnostics for valves and actuators
15. the direct stroke and the angular travel actuator adopt the same type of valve positioner

Application：
The application of 100 series positioner is mainly used in the following fields:
Chemical industry
Power plant
Paper and glass
Water and sewage
Food and pharmaceutical
Sea platform
The 100 series valve positioner is made of aluminum housing, used for single acting and non hazardous areas, and controlled by 4~20mA signals.

Design：
The 100 series valve positioner is a digital field device with high integration microprocessor. The positioner consists of the following components:
• Housing and cover
• PCB printed circuit board
• actuator travel test assembly
• Screw terminal box
• The pneumatic valve control and amplification part of the piezoelectric valve assembly is arranged inside the housing, and the pneumatic interface of the inlet and the output pressure is positioned on the right side of the positioner.

Function

The 100 series intelligent electric valve positioner works very differently from the traditional positioner. The working mode is microprocessor, which compares the given value and position. If the microprocessor detects a deviation, it uses a five step switching program to control the piezoelectric valve, which then regulates the flow of air into the actuator chamber. The microprocessor outputs an electrically controlled instruction to the piezoelectric valve according to the magnitude and direction of the deviation (the given value W and the position feedback signal x). The piezoelectric valve will control the displacement quantity increase instruction transformation for the gas, when the control deviation is large (high speed), the locator output a continuous signal; when the control deviation is a low velocity zone (locator output pulse;}, when the controller deviation in the allowable error range (adaptive or adjustable, no dead state) control command output + 100 series positioner mounting assembly is fixed to the proper stroke or rotary actuator, actuator straight or angle shift components installed and connected to the detection of wear resistant conductive plastic potential by converter. The angular error of the components detected on the direct stroke actuator is automatically corrected. When the 100 series is connected by a two-wire system, it completely acquires power from the given signal between 4 and 20mA. The pneumatic valve set with pre controlled piezoelectric valve can release a short control pulse so that it can achieve very accurate positioning accuracy. The main component is a piezoelectric flexible switch, which is connected with the main air control circuit. The piezoelectric valve set has a very long working life. Field operations are performed by buy LCD and 3 input buttons. Automatic, manual and configuration can be switched by button. In manual mode, valve actuation is actuated over the entire range. Auto initialization, using a simple configuration menu, you can quickly configure the 100 series, or you can adjust the 100 series through the automatic initialization function.