ABB 3BDH000741R1 Input Module

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ABB 3BDH000741R1

ABB 3BDH000741R1 is a CTI 21-P Ex Temperature Input Module designed for ABB Symphony Plus / process control systems. It is an intrinsically safe I/O module used for temperature and analog signal acquisition in hazardous-area industrial applications.

Product Overview

• Manufacturer: ABB
• Order Number: 3BDH000741R1
• Type Designation: CTI 21-P Ex
• Product Type: I/O Module
• System Platform: ABB Symphony Plus DCS
• Function: Temperature and analog input acquisition
• Application: Hazardous-area process measurement and control

Technical Description

The ABB CTI 21-P Ex module provides isolated input channels for connecting various temperature sensors and analog measurement devices. It is designed for reliable operation in industrial environments where intrinsic safety and signal integrity are required.

Main technical features:

• 16 / 32 configurable input channels
• Supports:
  • Thermocouples (TC: J, K, T, E, R, S, B, N)
  • RTD sensors (Pt100, Ni100)
  • mV / voltage signals
  • Resistance measurement signals
• Channel-by-channel electrical isolation
• ATEX certified for hazardous environments
• Intrinsically safe interface: II (2) G [Ex ib IIC Gb]
• Supports sensor linearization and compensation functions

Key Advantages

• High Measurement Accuracy
  Provides stable temperature signal acquisition with compensation and filtering functions.
• Intrinsic Safety Design
  Suitable for Zone 2 hazardous-area installations, reducing the need for external safety barriers.
• Flexible Sensor Compatibility
  One module can handle multiple types of temperature sensors and analog inputs.
• Reliable DCS Integration
  Designed for continuous operation in critical process industries.

Typical Applications

ABB 3BDH000741R1 is commonly used in:

• Oil & Gas processing plants
• Chemical and petrochemical facilities
• Power generation plants
• Boiler and turbine monitoring systems
• Refining processes
• Industrial process temperature control systems

Conclusion

The ABB 3BDH000741R1 CTI 21-P Ex Temperature Input Module is a high-reliability temperature acquisition module for ABB Symphony Plus DCS installations. With intrinsic safety certification, multi-sensor compatibility, and isolated input channels, it is suitable for demanding industrial automation applications requiring accurate and safe temperature monitoring.