Overview
The AAI841‑H00/K4A00 is a 4‑channel analog input module with full isolation, used for precise 4‑20 mA signal acquisition in industrial DCS systems. Brand: Yokogawa. Country of Origin: Japan.
General Information
Part Number: AAI841‑H00/K4A00
Manufacturer: Yokogawa Electric Corporation
Brand: Yokogawa
Country of Origin: Japan
Type: Isolated Analog Input Module
Channels: 4 isolated input channels
Function: Converts field 4–20 mA signals into digital data for system logic
Power Specifications
Signal Range: 4–20 mA per channel
Input Resistance: ~250 Ω
Current Consumption: Operating current per module board
Protection: Channel-level isolation, transient protection
Communication & Interface
Input Options: Supports 2‑wire or 4‑wire transmitters
Connection: Screw‑terminal wiring, module‑level K4A00 cable interface
Diagnostics: Channel fault detection and abnormal condition reporting
Environmental
Operating Temperature: –20 °C to +70 °C
Storage Temperature: –40 °C to +85 °C
Humidity: Up to 95% RH, non‑condensing
Isolation Voltage: Rated ≥ 500 V AC between each channel and system
Dimensions & Weight
Dimensions: 107.5 × 32.8 × 130 mm
Weight: 0.3 kg
