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AAR145-S50

The Yokogawa AAR145-S50 is a 16-channel RTD and potentiometer (POT) input module designed for use in Yokogawa's CENTUM series Distributed Control Systems (DCS). This module is engineered to provide high-precision signal acquisition from field devices such as temperature sensors and position transducers.

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Key Specifications

Model: AAR145-S50

Input Channels: 16 channels

Input Signal Types:

RTD: JIS C1604:1997, IEC751:1995 Pt100 (3-wire type)

POT: Total resistance 100 Ω to 10 kΩ

Span Resistance: 50% or larger of total resistance

Input Signal Switching: Selectable RTD/POT for each channel

Isolation: Each channel is electrically isolated

Input Measurement Current: Approximately 1 mA for RTD inputs

Allowable Input Voltage: ±5 V

Maximum Current Consumption: 350 mA (5 V DC)

Operating Voltage: 24 V DC

Dimensions: 100 mm × 50 mm × 30 mm

Weight: Approximately 0.3 kg

Mounting: DIN rail compatible

Compliance: CE, UL Listed

✅ Key Features

High Channel Density: Offers 16 isolated input channels in a compact form factor, reducing the need for multiple modules.

Flexible Input Configuration: Supports both RTD and potentiometer inputs, accommodating a wide range of field devices.

High Precision: Provides accurate signal acquisition, suitable for applications requiring precise measurements.

Robust Isolation: Ensures protection against electrical noise and ground loops, enhancing system reliability.

Compact Design: Space-saving dimensions facilitate easy integration into control systems.