YOKOGAWA AAT141 S50 S2 16-Channel Isolated TC/mV Input Module

Product Description

The AAT141 S50 S2 is a Yokogawa FIO series thermocouple / millivolt analog input module for CENTUM VP / CS3000 DCS. It collects low-level thermocouple and mV signals from temperature sensors, converts them into digital data for the control station. It adopts full isolation design between field side and system backplane to suppress ground loop noise, widely used for temperature monitoring in petrochemical, power and refining process control cabinets.

Features

• Part No: AAT141 S50 S2, Brand: Yokogawa
• 16-channel isolated TC/mV input module, FIO I/O for CENTUM VP
• Supported TC types: J, K, E, B, R, S, T, N; mV range: -100 ~ 150 mV
• Galvanic isolation, 1500V AC withstand voltage between field and system
• Built-in cold junction compensation for thermocouple measurement
• Front panel LED indicators for module run, communication and channel fault
• Supports redundant pairing for critical temperature control loops
• Hot-swappable under redundant rack configuration
• Conformal coating optional, suitable for industrial harsh environment
• Standard FIO slot form factor, matched with AET terminal block

Applications

• Petrochemical plant reactor, furnace temperature monitoring
• Thermal power plant boiler, turbine temperature measurement
• Refinery, oil & gas process temperature acquisition
• Chemical, pulp & paper CENTUM VP DCS system cabinet
• Legacy Yokogawa CENTUM system spare replacement and retrofit

FAQ

Q: What does S50 S2 mean?
A: S50 stands for hardware revision; S2 indicates style code and firmware version variant.

Q: What is the difference between AAT141 and AAI141?
A: AAT141 is TC/mV temperature input; AAI141 is 4–20mA current analog input module.

Q: Is AAT141 S50 S2 discontinued?
A: This FIO module is mature legacy hardware, original production stopped, supplied as surplus, refurbished and tested spare parts only.

Q: Can it be used with ProSafe-RS safety system?
A: AAT141 belongs to standard CENTUM FIO, not safety I/O for ProSafe-RS.