ABB AO845A Key features
High Precision Output: 12-bit resolution delivers accurate control signals for actuators.
Galvanic Isolation: 1500 V isolation ensures signal integrity and protects downstream devices.
Flexible Signal Support: Configurable for either 4–20 mA or 0–10 V output without extra converters.
Seamless Integration: Designed for Freelance DCS, plug-and-play on NOVRAM backplane simplifies setup.
Robust Industrial Design: Rated for –20 °C to +60 °C and high humidity, suitable for demanding environments.


Typical cooperation cases
Process Automation: Drives control valves, dampers, and motor speed regulators in chemical, petrochemical, and pharmaceutical plants.
Power Generation: Provides output signals to guide turbine governors and boiler control loops in thermal, hydro, and renewable power stations.
Water & Wastewater: Controls dosing pumps, valve actuators, and chemical feeders in treatment facilities.
HVAC & Building Management: Interfaces with actuators in heating, ventilation, and air-conditioning systems for efficient energy regulation.