MTL 4544D Fieldbus Module with Display | H1 Repeater, IS, 24V DC, 1.5A, Diagnostic LCD

MTL 4544D Fieldbus Module with Display | H1 Repeater, IS, 24V DC, 1.5A, Diagnostic LCD

MTL 4544D fieldbus power module with display specifications. Fieldbus H1 repeater, 24V DC, 1.5A, LCD diagnostics, IS barrier, FM/ATEX/IECEx. For hazardous area networks.

Product Overview

The MTL 4544D​ is a fieldbus power and communication module with integrated display​ from MTL's 4500 series, designed as a FOUNDATION Fieldbus H1 repeater with advanced diagnostics and intrinsic safety protection. This model provides regulated 24V DC power​ with 1.5A capacity, features a built-in LCD display for real-time diagnostics, and carries FM, ATEX, and IECEx approvals​ for Zone 1 hazardous locations. The "4544D" designation indicates the display-equipped version of the 4544 model. This device offers comprehensive monitoring and control of fieldbus networks in explosive atmospheres with enhanced diagnostic visibility.

Technical Specifications

Note: Specifications are based on MTL 4544D technical documentation. The "D" suffix indicates the display-equipped variant. Always verify with the latest product datasheet for your region.

Key Features

• Integrated LCD Display:​ Real-time monitoring of voltage, current, power, and network status

• Dual Segment Support:​ Powers and conditions two independent fieldbus segments

• Intrinsic Safety Barrier:​ Provides IS protection for Zone 1 hazardous areas

• Adjustable Current Limit:​ Field-adjustable from 0.5A to 1.5A per segment via display interface

• Advanced Diagnostics:​ Comprehensive monitoring and logging capabilities

• Front Panel Controls:​ Push buttons for configuration without external tools

• Universal Input:​ Accepts 85-264V AC or 20-30V DC input

• Built-in Termination:​ Switchable 100Ω termination for each segment (configurable via display)

• RS-485 Diagnostic Port:​ Standard interface for remote monitoring and configuration

• SIL 2 Capable:​ Suitable for safety instrumented systems (when properly configured)

Display Information Capabilities

Entity Parameters (for Hazardous Area Design)

Note: The 4544D is an associated apparatus. All connected field devices must be intrinsically safe and properly certified.

Typical Applications

• Process Control Rooms:​ Centralized monitoring of fieldbus networks in refineries and chemical plants

• Power Generation Facilities:​ Fieldbus network monitoring for critical process areas

• Pharmaceutical Manufacturing:​ Diagnostic monitoring of classified area fieldbus networks

• Offshore Platforms:​ Remote monitoring of fieldbus segments in hazardous locations

• Water Treatment Plants:​ Diagnostic capability for fieldbus networks in explosive atmospheres

• Any FOUNDATION Fieldbus H1 application​ requiring enhanced diagnostic visibility and intrinsic safety protection

Important Technical Notes

1. Display Visibility:​ The LCD is backlit for visibility in low-light conditions. Ensure the mounting location allows for clear viewing of the display.

2. Configuration Access:​ The front panel push buttons allow configuration changes. Consider implementing access control (passwords, physical locks) to prevent unauthorized changes in critical applications.

3. Certification Compliance:​ Verify that the 4544D's hazardous area certifications match your installation's requirements (typically ATEX: II 2(1) G [Ex ia Ga] IIC).

4. Network Design:​ Use the display's diagnostic information to optimize network design. Monitor actual current consumption to properly set current limits.

5. Current Limit Setting:​ Adjust current limits via the display interface. Document settings for maintenance records and change management.

6. Grounding Requirements:​ Follow manufacturer's grounding instructions. The display unit has the same critical grounding requirements as the non-display version.

7. Environmental Protection:​ While the unit itself is IP20, the display face is more vulnerable. Install in an appropriate enclosure that protects the display while allowing visibility.

8. Diagnostic Utilization:​ Regularly monitor the display for preventive maintenance. Use the alarm history to identify recurring issues.

9. Remote Monitoring:​ The RS-485 port enables integration with plant monitoring systems for centralized diagnostics.

10. Training:​ Ensure personnel are trained on using the display interface for both monitoring and configuration tasks.

Note: This data sheet provides general specifications for the MTL 4544D fieldbus power and communication module with display. For complete installation guidelines, display operation manual, network design procedures, and safety instructions, consult the official MTL 4500 Series Technical Manual​ and 4544D User Guide. Always verify that the product configuration matches your specific hazardous area and application requirements.