ABB 1MRK002305-AAr01 | System 800xA Analog Output Card

Product Description

The ABB 1MRK002305-AAR01 is a high-density, 16-channel analog output module for the System 800xA DCS platform. It provides 16 isolated 0–20mA or 4–20mA current loops with 16-bit resolution and ±0.05% accuracy. Built with galvanic isolation, it ensures precise, surge-protected actuator control across harsh, demanding industrial processing environments.

Technical Specifications

• Manufacturer: ABB

• Part Number Designation: 1MRK002305-AAR01 (Core model series: 1MRK002305-AA)

• Automation Platform Architecture: ABB System 800xA Control Ecosystem

• Number of Output Channels: 16 high-density channels

• Signal Output Interface Type: Constant Current Loop Regulation

• Configurable Signal Output Ranges: 0 to 20 mA, 4 to 20 mA standard industrial windows

• Digital-to-Analog Conversion (DAC) Resolution: 16-bit high-resolution processing

• Command Precision Accuracy: ±0.05% of full scale under nominal thermal conditions

• Dynamic Internal Impedance: < 1 ohm (Ultra-low profile design for stable current driving)

• Channel Refresh Polling Rate: High-speed sampling up to 100 updates/second per individual channel

• Electrical Transient Isolation: Comprehensive channel-to-bus galvanic isolation

• Nominal System Operational Power: 24 V DC

• Enclosure Mechanical Ingress Protection: IP20 standard protection class

• Operational Environmental Thermal Window: -20°C to +60°C (-4°F to 140°F)

• Storage Environmental Thermal Window: -40°C to +80°C (-4°F to 176°F)

• Continuous Ambient Relative Humidity: 0% to 95% RH, non-condensing continuous limits

Industrial Application Scenarios

• Chemical Synthesis & Refining: Controls critical modulating proportional valves and chemical dosing pumps to maintain exact fluid ratios, pressure loops, and thermal balances.

• Power Plant Automation: Regulates heavy combustion air dampers, water-feeding control loops, and speed setpoint commands for variable frequency drives (VFDs) on high-pressure steam turbines.

• Water & Wastewater Treatment: Directs proportional flow adjustment valves and chemical additive feeders across widely distributed remote I/O panel arrays.

• Pulp & Paper Manufacturing: Drives precise mechanical actuators and roller speed controllers where continuous, sub-second tension adjustments are required to minimize material tears.