MTL Instruments MTL5041 Hazardous Area Repeater

MTL5041 Repeater Power Supply

The MTL5041 from MTL Instruments provides a fully-floating DC supply for 2-wire transmitters in hazardous areas. This single-channel unit energizes transmitters located in Zone 0 while repeating the current signal to drive safe-area loads. It delivers fast, accurate signal repetition with complete electrical isolation.

Key Technical Specifications

• Brand: MTL Instruments
• Model: MTL5041
• Product Type: Repeater Power Supply
• Channels: One channel
• Transmitter Type: 2-wire 4-20mA conventional
• Response Time: 250µs to 10% of final value
• Supply Voltage: 20 to 35V DC

Hazardous Area Certification

• Transmitter Location: Zone 0, IIC, T4-T6 hazardous area
• Division Rating: Division 1, Group A hazardous location
• The MTL5041 maintains intrinsic safety standards
• It provides safe operation for transmitters in explosive atmospheres

Input Specifications

• Signal Range: 0 to 24mA including over-range
• Transmitter Voltage: 16.5V at 20mA
• Input Terminals: Terminal 1 (Input –ve), Terminal 2 (Input +ve)
• The unit provides floating DC supply for 2-wire transmitters

Output Performance

• Signal Range: 4 to 20mA standard output
• Extended Range: 0 to 24mA over/under-range
• Load Resistance: 0 to 1kΩ maximum
• Output Resistance: >2MΩ
• Output Terminals: Terminal 11 (Output –ve), Terminal 12 (Output +ve)

Accuracy & Speed

• Transfer Accuracy: Better than 20µA at 20°C
• Typical Accuracy: Typically 5µA
• Temperature Drift: <1µA/°C
• Response Time: Settles within 250µs to 10% of final value
• Circuit Ripple: <125µA peak-to-peak

Power Requirements

• Supply Voltage: 20 to 35V DC
• Supply Terminals: Terminal 13 (Supply –ve), Terminal 14 (Supply +ve)
• Current Consumption: 70mA at 24V with 20mA signal
• Power Dissipation: 1.2W at 24V maximum
• Status Indicator: Green LED for power monitoring

Safety Parameters

• Safety Voltage: 28V maximum
• Internal Resistance: 300Ω
• Safety Current: 93mA maximum
• Isolation Voltage: Um = 250V rms or DC

Frequently Asked Questions

• What transmitter voltage does the MTL5041 provide?
  It delivers 16.5V at 20mA for powering 2-wire transmitters.
• What is the maximum load resistance?
  The output can drive safe-area loads up to 1kΩ.
• How fast is the response time?
  It settles to within 10% of final value within 250 microseconds.
• What areas is it certified for?
  It is certified for Zone 0, IIC, T4-T6 and Division 1, Group A areas.