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ABB CMA121 DC Power Supply Module

Technical Specifications

  • Measurement Range: Offers a wide range of measurement options tailored to specific application needs, typically from 0-400 mbar to 0-40 bar
  • Accuracy: High accuracy, often within ±0.075% of span, ensuring reliable readings
  • Output Signal: Provides standard output signals such as 4-20mA or digital outputs like HART, Foundation Fieldbus for easy integration with control systems
  • Operating Voltage: Operates on typical industrial power supplies, commonly 12 to 36 V DC
  • Power Consumption: Designed for low power consumption, optimizing energy efficiency
  • Operating Temperature: Suitable for operation in a broad temperature range, usually from -40°C to +85°C
  • Environmental Protection: Rated IP66 or IP67, providing protection against dust and water ingress
  • Process Connections: Available with various process connections to suit different installation requirements
  • Certifications: Meets international standards for safety and performance, including ATEX, IECEx, and others applicable to hazardous locations

Detailed content

Functional Features

  • High Precision: Delivers highly accurate pressure measurements crucial for process control and safety
  • Robust Design: Engineered to withstand harsh environmental conditions, ensuring long-term reliability
  • Easy Configuration: User-friendly configuration tools facilitate quick setup and adjustments without the need for specialized training
  • Diagnostic Capabilities: Onboard diagnostics monitor device health and help identify potential issues early
  • Modular Flexibility: Can be customized with different options and accessories to fit specific application requirements

Application Scenarios

  • Oil and Gas: Used in upstream, midstream, and downstream operations for monitoring pressures in pipelines, separators, and compressors
  • Chemical Industry: Ensures safe and efficient operation by accurately measuring pressures in reactors, storage tanks, and transfer lines
  • Power Generation: Plays a key role in monitoring boiler pressures, turbine systems, and other critical equipment
  • Water and Wastewater Management: Helps maintain optimal pressure levels in treatment plants and distribution networks
  • HVAC Systems: Facilitates efficient heating, ventilation, and air conditioning operations through precise pressure control

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