ABB AI835 Analog Input Module

Description

The ABB AI835 Analog Input Module is a high-performance component designed for industrial automation systems, providing precise and reliable input for various industrial sensors. It features 8 independent analog input channels, each configurable for either current or voltage input, making it suitable for broad applications in manufacturing, process control, industrial monitoring, data acquisition, alarm systems, building automation, intelligent transportation, and water treatment systems. Key technical specifications include support for input ranges of 0-20 mA and 0-10 V, with an accuracy of ±0.1% FS and 12-bit resolution. For current inputs, it has a 250 ohm input resistance (integrated with PTC resistor for current limiting) and can handle transmitter-powered short circuits without damage; voltage inputs have a 290k ohm input resistance and can withstand voltages above 30V. Additional features include 30V analog input short-circuit protection, AC noise immunity, single-ended unipolar input support, and full electrical isolation of the 8-channel group from ground. Transmitter power can be connected to terminals L1+, L1- and/or L2+, L2- for flexible system integration.