Overview
The AAI841-S50/K4A00 is an analog input/output module featuring 8 isolated input channels and 8 isolated output channels. It handles 4–20 mA signal loops for both measurement and control in industrial DCS systems. Brand: Yokogawa. Country of Origin: Japan.
General Information
Part Number: AAI841-S50/K4A00
Manufacturer: Yokogawa Electric Corporation
Brand: Yokogawa
Country of Origin: Japan
Type: Analog Input/Output Module
Channels: 8 inputs + 8 outputs
Function: Converts field 4–20 mA signals into digital data and drives 4–20 mA outputs for field devices
Power Specifications
Input/Output Signal Range: 4–20 mA
Allowable Load Resistance: 0 to 750 Ω
Accuracy: ±16 µA for input; ±48 µA for output
Data Update Period: 10 ms
Communication & Interface
Signal Types: 4–20 mA current loops for both inputs and outputs
Connection: Terminal wiring or KS cable interface adapter (K4A00)
Diagnostics: Circuit-open detection (<0.65 mA) and channel monitoring
Environmental
Operating Temperature: -20 °C to +70 °C
Storage Temperature: -40 °C to +85 °C
Humidity: Up to 95% RH, non-condensing
Dimensions & Weight
Dimensions: 107.5 × 32.8 × 130 mm
Weight: 0.3 kg
