Product Description
Product Overview
The Yokogawa AAI841-H50/K4A00 is an Analog I/O Module designed for versatile signal handling in industrial control systems. Part of the Current/Voltage I/O Modules series, this non-isolated module provides 8 input and 8 output channels to support up to 8 loops, with compatibility for dual-redundant configurations. It processes 4 to 20 mA signals for both input and output, features HART communication, and includes a KS Cable Interface Adapter, making it a robust component in Yokogawa’s automation solutions.
Technical Information
| Item | Specifications |
|---|---|
| Manufacturer | Yokogawa |
| Model/Part Number | AAI841-H50/K4A00 |
| Description | Analog I/O Module |
| Number of I/O Channels | 8-channel input / 8-channel output, non-isolated |
| I/O Signal | Input: 4 to 20 mA Output: 4 to 20 mA |
| Allowable Input Current/Voltage | 25 mA |
| Input Resistance | Power ON: 400 Ω (at 20 mA) to 1000 Ω (at 4 mA) (*2) Power OFF: 500 kΩ or larger |
| Allowable Load Resistance | 0 to 750 Ω (*3) |
| Circuit-Open Detection | Less than 0.65 mA |
| Accuracy | Input: ±16 µA Output: ±48 µA |
| Data Update Period | 10 ms |
| Input Step Response Time | 100 ms |
| Output Step Response Time | 40 ms |
| Transmitter Power Supply | 14.8 V or higher (at 20 mA) 26.4 V or less (at 0 mA) (*4) |
| Setting of 2-wire or 4-wire Transmitter | For each channel by setting pin |
| Temperature Drift | ±0.1 %/10 °C |
| Maximum Current Consumption | 310 mA (5 V DC), 500 mA (24 V DC) |
| Weight | 0.3 kg |
| External Connection | Pressure clamp terminal, KS cable, MIL connector cable |
| HART Communication (*8) | Available |
Model and Suffix Codes
- Model: AAI841 Analog I/O Module (4 to 20 mA input, 4 to 20 mA output, 8-channel input/8-channel output, Non-Isolated)
- Suffix Codes:
- -S: Standard type
- -H: With digital communication (HART protocol)
- 5: With no explosion protection
- E: With explosion protection
- 0: Basic type
- 3: With ISA Standard G3 option and temperature (-20 to 70 °C) option
- Option Codes:
- /K4A00: With KS Cable Interface Adapter [Model: ATK4A-00]
- /A4S00: With Pressure Clamp Terminal Block for Analog [Model: ATA4S-00]
- /A4S10: With Pressure Clamp Terminal Block for Analog (surge absorber) [Model: ATA4S-10]
- /A4D00: With Dual Pressure Clamp Terminal Block for Analog [Model: ATA4D-00]
- /A4D10: With Dual Pressure Clamp Terminal Block for Analog (surge absorber) [Model: ATA4D-10]
- /CCC01: With Connector Cover for MIL Cable [Model: ACCC01]
Specific Configuration
- Model/Part Number: AAI841-H50/K4A00
- Configuration Details:
- -H: With digital communication (HART protocol)
- 5: With no explosion protection
- 0: Basic type
- /K4A00: With KS Cable Interface Adapter [Model: ATK4A-00]