ABB AO2000-LS25

Product NameABB AO2000-LS25 Smart Digital Valve Positioner Module
Product DescriptionThe ABB AO2000-LS25 is a core executive control component of ABB’s process automation system, belonging to the AO2000 series of smart digital valve positioners. It is specifically designed to enhance the control accuracy and reliability of pneumatic control valves, which are crucial for precisely regulating process parameters such as flow, pressure, temperature, and liquid level in industrial production.

Adopting microprocessor control technology, the module uses high-precision non-contact position sensors to monitor the actual position of the valve in real time. It compares the actual position with the set value and dynamically adjusts the output air pressure through advanced control algorithms to achieve closed-loop control of the valve. This design avoids mechanical wear, eliminating problems like valve oscillation and crawling effectively.

With a sturdy aluminum alloy housing and IP65 protection rating, it can operate reliably for a long time in harsh industrial sites with dust, humidity, high temperatures, or chemical corrosion. It supports 4–20mA analog signal input and integrates the HART communication protocol, enabling remote parameter configuration, diagnostic information reading, and calibration via a handheld terminal or control system. It is widely used in petrochemical, chemical, power, and water treatment industries, compatible with both linear and rotary pneumatic actuators.
Product Parameters

Parameter Categories	Specific Details
Input Signal	4–20 mA DC (compatible with HART 5.0 and above protocols)
Power Supply Voltage	8–32 VDC (powered by loop or external source)
Pneumatic Output	Standard 20–100 kPa (3–15 psi), configurable
Supply Gas Pressure	140–700 kPa (20–100 psi)
Control Accuracy