he Yokogawa AAI135-H03 is a dedicated 4–20mA analog input module built for the CENTUM VP DCS platform. Equipped with 8 fully galvanically isolated channels, it focuses solely on field signal acquisition, differing from the hybrid I/O AAI835 series.
The H suffix enables native HART communication, supporting bidirectional data exchange with smart transmitters for remote parameter check and device diagnostics. Every channel features independent isolation to eliminate ground loop interference and contain circuit faults.
The -H03 variant complies with ISA G3 corrosion-resistant specification, supporting a wide operating temperature span from -20°C to 70°C. It supports hot-swap operation to reduce plant downtime during maintenance.
Preferred for large-scale measurement loops in oil & gas, chemical and power facilities. It remains a mainstream spare part for new DCS construction and existing CENTUM VP system modernization.
Tags: Yokogawa AAI135-H03, CENTUM VP, Analog Input Module, HART DCS Spare Parts
