Yokogawa AAT145-S03 Style S1 TC mV Input Module

Description:

The Yokogawa AAT145-S03 S1 TC/mV Input Module is used in distributed control systems for acquiring thermocouple and millivolt signals from field instruments. Commonly installed in Yokogawa CENTUM DCS cabinets, control panels, and industrial process systems. Maintenance teams and system integrators use this part for temperature signal acquisition, replacing failed I/O modules, or maintaining accurate thermal monitoring in process control systems.

Applications:

The Yokogawa AAT145-S03 S1 is commonly used in industrial process control environments where temperature measurement is critical. It is frequently applied in oil & gas, chemical plants, power generation, and manufacturing systems to capture thermocouple and low-level mV signals from sensors monitoring furnaces, reactors, pipelines, and heat exchangers. These modules convert temperature signals into digital data for real-time monitoring, control, and safety systems.

Technical Specifications:

• Manufacturer: Yokogawa
• Model / Part Number: AAT145-S03 S1
• Product Type: TC/mV Input Module
• Channels: 16 isolated input channels
• Input Signal Types: Thermocouple (J, K, E, T, B, R, S, N), mV signals
• Input Range: Typically -100 to +150 mV (model dependent)
• Isolation: Channel-to-channel and system isolation
• Accuracy: High precision (approx. ±0.1% FS typical)
• Noise Level: <5 µVrms
• Response Time: <2 seconds
• Withstanding Voltage: 1500 VAC (input to system)
• Operating Temperature: -20°C to 70°C (with S3/G3 option)
• Mounting Type: Rack-mounted I/O module
• Function: Converts thermocouple/mV signals into digital data for DCS processing

Common Replacements:

• Yokogawa AAT141 TC/mV Input Module
• Yokogawa AAR145 RTD/POT Input Module
• Yokogawa AAI143 Analog Input Module