Yokogawa AAI841-H00/K4A00 Analog I/O Module

Overview

The AAI841-H00/K4A00 is a high-precision Analog I/O Module for Yokogawa’s CENTUM VP and ProSafe-RS systems. It supports HART communication, enabling smart device diagnostics and remote configuration. The module acquires analog signals from transmitters and sensors in critical process environments, including oil & gas, chemical, and power generation. It ensures reliable and accurate data for process control applications.

Technical Specifications

• Type: Analog I/O Module

• Model: AAI841-H00/K4A00

• Number of Channels: 16 isolated analog input channels

• Signal Type: DC Voltage 1–5 V, 0–10 V; DC Current 4–20 mA, 0–20 mA

• Input Signal Range: 4–20 mA DC

• Maximum Input Current: 24 mA DC

• Input Resistance: 270 Ω at 20 mA, 350 Ω at 4 mA

• Transmitter Power Supply: ≥14.8 V at 20 mA, ≤26.4 V at 0 mA

• Protocol Support: HART-enabled for smart device communication

• Data Update Period: 10 milliseconds

• Accuracy: ±16 µA, ±0.1% of span

• Resolution: 16 bits

• Isolation: Channel-to-channel and channel-to-ground isolation

• Current Consumption: Maximum 1.2 A at 5 V DC

• External Connection: 40-pin connector

• Mounting: DIN rail, panel mount, or terminal block (e.g., AAT145)

• Terminal Adapter: Compatible with ATK4A-00

• Operating Temperature: −20°C to +70°C

• Storage Temperature: −40°C to +85°C

• Humidity Range: 5% to 95% RH (non-condensing)

• Dimensions (H x W x D): 100 x 30 x 140 mm

• Weight: 0.4 kg