MTL​ (Measurement Technology Ltd) is a global leader in industrial instrumentation and hazardous area protection solutions. Specializing in intrinsic safety barriers, signal conditioners, and surge protection devices, MTL serves oil & gas, chemical, and process industries worldwide. With over 50 years of expertise, the brand delivers reliable, certified products for critical safety applications, ensuring operational excellence in explosive environments.

Product Overview

The ​MTL 5043​ is a dual-output repeater power supply designed for reliable signal conditioning in hazardous industrial environments. This specialized device provides fully-floating DC power supplies for conventional 2-wire 4-20mA transmitters located in hazardous areas while simultaneously driving two safe-area loads. Manufactured by MTL Instruments, it ensures precise signal repetition with HART communication capability through channel 1, making it ideal for critical process control applications in oil and gas, chemical, and other high-risk industries where intrinsic safety is paramount.

Key Features

• ​Dual Output Configuration​ - Single input channel with two independent safe-area outputs

• ​HART Communication Support​ - Bidirectional digital signal transmission via channel 1

• ​Intrinsic Safety Certification​ - Approved for hazardous area applications

• ​Fully Floating Design​ - Complete electrical isolation between circuits

• ​Compact Construction​ - Space-efficient design for panel integration

• ​Wide Voltage Range​ - Flexible 12-30V DC operating voltage

• ​Precision Signal Repetition​ - Accurate 4-20mA signal conditioning

• ​Robust Enclosure​ - IP65 rated housing for industrial environments

Technical Specifications

Electrical Characteristics

Power Specifications

• ​Operating Voltage​ | 12-30V DC range

• ​Current Capacity​ | Suitable for standard 4-20mA loops

• ​Power Efficiency​ | Optimized for minimal power consumption

• ​Isolation​ | Full floating design for safety

Signal Performance

• ​Input Signal​ | 4-20mA from field transmitters

• ​Output Signal​ | Dual 4-20mA outputs to safe area

• ​Accuracy​ | Precision signal repetition

• ​Ripple Suppression​ | Excellent noise immunity

Load Capabilities

• ​Safe-Area Loads​ | Capable of driving two independent loads

• ​Transmitter Power​ | Provides DC supply for 2-wire transmitters

• ​HART Compatibility​ | Supports digital communication via channel 1

Applications

The MTL5043 is specifically designed for:

• ​Oil and Gas Refineries​ - Hazardous area signal conditioning

• ​Chemical Processing Plants​ - Critical process control applications

• ​Power Generation Facilities​ - Safety system interface

• ​Industrial Process Control​ - 4-20mA signal repetition

• ​HART-enabled Systems​ - Smart transmitter integration

• ​Hazardous Area Monitoring​ - Zone 0/Division 1 applications

Design & Construction

Physical Specifications

• ​Enclosure Type​ | IP65 rated industrial housing

• ​Material​ | ABS construction for durability

• ​Dimensions​ | Compact 100mm × 100mm × 30mm form factor

• ​Mounting​ | Designed for standard panel installation

• ​Weight​ | Lightweight 0.5kg design

Environmental Specifications

• ​Protection Rating​ | IP65 for dust and water resistance

• ​Industrial Rating​ | Suitable for harsh environments

• ​Safety Standards​ | Complies with intrinsic safety requirements

Operational Characteristics

Functional Operation

• ​Dual Output Operation​ | Simultaneous driving of two safe-area loads

• ​Signal Repetition​ | Accurate current repetition from hazardous area transmitter

• ​HART Transmission​ | Bidirectional digital communication support

• ​Floating Design​ | Complete electrical isolation between circuits

Performance Features

• ​Voltage Stability​ | Consistent 15.5V DC output at 20mA

• ​Current Accuracy​ | Precise 4-20mA signal repetition

• ​Noise Immunity​ | Low ripple output for clean signal transmission

• ​Reliability​ | Robust design for continuous operation

Compatibility & Integration

Transmitter Compatibility

• ​2-Wire Transmitters​ | Designed for conventional 4-20mA devices

• ​Smart Transmitters​ | HART-enabled device support

• ​Hazardous Area Devices​ | Intrinsically safe transmitter integration

System Integration

• ​Control Systems​ | Interface with DCS and PLC systems

• ​Safety Barriers​ | Compatible with intrinsic safety systems

• ​Process Loops​ | Standard 4-20mA current loop integration

Why Choose MTL5043?

• ​Proven Reliability​ | MTL's reputation for industrial quality and durability

• ​Dual Output Flexibility​ | Two independent outputs from single input

• ​HART Communication​ | Digital signal transmission capability

• ​Intrinsic Safety​ | Certified for hazardous area applications

• ​Easy Integration​ | Simple installation and operation

• ​Global Compliance​ | Meets international safety standards

• ​Precision Performance​ | Accurate signal conditioning for critical applications

Important Note

The MTL5043 has been ​discontinued​ by the manufacturer and has been replaced by the ​MTL5544D​ as the current model . While the MTL5043 may still be available through secondary suppliers, for new installations and critical applications, the MTL5544D is recommended as it offers enhanced features and current manufacturer support .

Replacement Information

Recommended Successor: MTL5544D

• ​Enhanced Features​ | Improved functionality and updated design

• ​Current Certification​ | Meets latest safety standards

• ​Manufacturer Support​ | Full technical and warranty support

• ​Improved Compatibility​ | Enhanced transmitter support