Overview
The Yokogawa AAI143-S53 S1 is a 16-channel isolated analog input module designed for industrial process control applications. It converts 4–20 mA signals from field transmitters into digital data for the control system. This model ensures high accuracy, fast response, and reliable isolation between channels, suitable for demanding automation environments.
General Information
Part Number: AAI143-S53 S1
Manufacturer: Yokogawa Electric Corporation
Brand: Yokogawa
Country of Origin: Japan
Model Series: AAI143
Type: Isolated Analog Input Module
Channels: 16 isolated input channels
Application: Industrial control systems and field signal acquisition
Power Specifications
Input Signal Range: 4–20 mA per channel
Input Resistance: 270 Ω to 350 Ω (depending on input current)
Power Supply: 24 V DC nominal
Current Consumption: Approx. 230 mA at 5 V DC and 540 mA at 24 V DC
Transmitter Power Supply: 19–25.5 V DC
Accuracy: ±16 µA typical
Isolation Voltage: 1500 V AC for 1 minute between channels and system
Communication & Interface
Signal Type: Analog current input
Update Rate: 10 ms typical
Response Time: 100 ms typical
Supported Transmitters: 2-wire and 4-wire transmitters
Communication: Standard analog (HART communication supported on “-H” variant)
Connection: Terminal block for secure wiring
Diagnostics: Input channel supervision and fault indication
Environmental
Operating Temperature: −20 °C to +70 °C
Storage Temperature: −40 °C to +85 °C
Humidity: Up to 95% RH, non-condensing
Installation Environment: Industrial cabinet or control rack
Protection Rating: IP20
Dimensions & Weight
Dimensions (W × H × D): 107.5 × 32.8 × 130 mm
Weight: 0.3 kg
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