Overview
The Yokogawa AAT145‑S50 is a 16‑channel input module engineered for thermocouple (TC), millivolt (mV), RTD, and potentiometer (POT) signal acquisition. Each channel is fully isolated to ensure high integrity and reliability in industrial control systems.
General Information
Part Number: AAT145‑S50
Brand / Country of Origin: Yokogawa / Japan
Product Type: TC/mV Input Module
Series: AAT145
Application: Precision temperature and low‑voltage signal measurement in distributed control systems
Power Specifications
Supply Voltage: Supplied via I/O rack backplane
Power Consumption: Approx. 350 mA at 5 V DC
Input Signal Types: Thermocouples (J, K, E, B, R, S, T, N), millivolt (‑100 to +150 mV), RTD (Pt100 3‑wire), and potentiometer (100 Ω to 10 kΩ)
Isolation: Channels isolated from system and from each other
Communication & Interface
Interface Type: Rack‑mounted with backplane connection on Yokogawa I/O architecture
Input Channels: 16 independent isolated channels
Diagnostics: Supports per‑channel fault detection, burn‑out detection, and dual‑redundant configurations
Environmental
Operating Temperature: −20 °C to +70 °C
Storage Temperature: −40 °C to +85 °C
Humidity: Up to 95% RH, non‑condensing
Protection Rating: IP20 when installed in enclosure
Dimensions & Weight
Dimensions (L × W × H): 107.5 × 130 × 32.8 mm
Weight: Approx. 0.20 kg
