Yokogawa AAI841-H50 Analog I/O Module

General Information

• Manufacturer: Yokogawa
• Model Number: AAI841-H50
• Product Type: Analog I/O Module
• Application: Industrial process monitoring, control, and signal output
• Mounting Type: Rack/Panel mount
• Compatibility: Designed for use with Yokogawa’s CENTUM VP, Stardom, and FA-M3 systems

Input/Output Channels

• Input Channels: 8 analog input channels
• Output Channels: 8 analog output channels
• Input Signal Types:
  • Current: 4-20 mA
  • Voltage: 1-5 VDC
• Output Signal Types:
  • Current: 4-20 mA
  • Voltage: 0-10 VDC

Signal Configuration and Flexibility

• Configurable Channel Types: Each input/output channel can independently handle current or voltage signals
• Input Impedance:
  • Current input: 250 Ω
  • Voltage input: 1 MΩ
• Output Impedance:
  • Current output: 500 Ω
  • Voltage output: 10 kΩ

Performance and Accuracy

• Measurement Accuracy: ±0.1% of full scale
• Resolution: 16-bit A/D and D/A conversion (0.0015% of full scale)
• Response Time: Less than 50 ms per channel
• Noise Rejection:
  • Common mode rejection ratio (CMRR): 120 dB at 50/60 Hz
  • Integrated advanced noise filtering for enhanced signal integrity

Electrical Isolation and Safety

• Electrical Isolation: 1500 V AC between input/output channels and system ground
• Power Supply Voltage: 24 VDC ±10%
• Power Consumption: 15 W
• Operating Temperature: -20°C to +60°C
• Storage Temperature: -40°C to +85°C
• Humidity Range: 5% to 95% RH, non-condensing

Physical Specifications

• Dimensions:
  • Height: 150 mm
  • Width: 80 mm
  • Depth: 120 mm
• Weight: 1.8 kg
• Connector Type: Screw terminal block for secure and easy wiring

LED Indicators and Diagnostic Features

• LED Status Indicators:
  • High-brightness (1000 mcd) LEDs for each input and output channel for real-time status updates
  • Simplifies troubleshooting and verification of signal presence and output conditions

Certifications and Compliance

• CE: Conforms to European safety, health, and environmental standards
• RoHS: Compliant with the Restriction of Hazardous Substances directive
• UL: Certified for safety by Underwriters Laboratories

Installation and Maintenance

• Mounting Options: Easily mountable on standard 19-inch racks or panels
• Wiring: Clearly labeled screw terminal connections for secure wiring
• Maintenance: Quick diagnostics using LED indicators for each channel
• Environmental Suitability: Designed for robust performance in harsh industrial conditions involving temperature extremes, vibration, and electrical noise