MTL5012 Solid-State Interface - MTL Instruments

MTL5012 Solid-State Output Interface

The MTL5012 from MTL Instruments enables solid-state outputs in safe areas to be controlled by switches or proximity detectors in hazardous areas. This single-channel interface provides independent output phase reversal and comprehensive line fault detection. It delivers reliable performance for logic circuit applications in demanding industrial environments.

Key Technical Specifications

• Brand: MTL Instruments
• Model: MTL5012
• Product Type: Solid-State Output Interface
• Channels: One channel
• Output Type: Floating solid-state for logic circuits
• Frequency Range: DC to 5kHz
• Input Standard: NAMUR/DIN 19234

Hazardous Area Certification

• Switch Location: Zone 0, IIC, T6 hazardous area
• Detector Location: Zone 0, IIC, T4-T6 with certification
• Division Rating: Division 1, Group A hazardous location
• The MTL5012 maintains intrinsic safety for connected sensors

Input Specifications

• Sensor Voltage: 7 to 9V from 1kΩ ±10% source
• Normal Phase: Output on if Iin >2.1mA or Rin <2kΩ
• Reverse Phase: Output off under same conditions
• Hysteresis: 200µA typical for stable switching
• Phase Reversal: User-selectable for output configuration

Output Characteristics

• Operating Frequency: DC to 5kHz
• Maximum Off-state Voltage: 35V
• Off-state Leakage: 10µA maximum
• On-state Voltage Drop: 1 + (0.13 x current in mA) V
• Maximum On-state Current: 50mA
• Compatibility: Floating output for logic circuits

Line Fault Detection (LFD)

• LFD Mode: User-selectable operation
• Open-circuit Alarm: On if Iin <50µA, Off if Iin >150µA
• Short-circuit Alarm: On if Rin <100Ω, Off if Rin >360Ω
• Fault Response: Detected line fault switches off output
• Contact Input: Requires 500Ω-1kΩ series and 20kΩ-25kΩ parallel resistors

Terminal Configuration

• Input: Terminal 1 (Input –ve), Terminal 2 (Input +ve)
• Earth Leakage: Terminal 3 for detection
• Output: Terminal 10-11 (Output –ve), Terminal 12 (Output +ve)
• Power Supply: Terminal 13 (Supply –ve), Terminal 14 (Supply +ve)

Power Requirements

• Current Consumption: 30mA at 24V maximum
• Power Dissipation: 0.8W at 24V maximum
• Maximum Dissipation: 1.2W at 35V
• Isolation: 250V AC or DC between all circuits

Safety Parameters

• Safety Voltage: 10.5V maximum
• Internal Resistance: 800Ω
• Safety Current: 14mA maximum
• Maximum Voltage: Um = 250V rms or DC

Frequently Asked Questions

• What type of output does the MTL5012 provide?
  It provides a floating solid-state output compatible with logic circuits.
• How does line fault detection work?
  It detects open circuits (<50µA) and short circuits (<100Ω) with visual indication.
• What is the maximum operating frequency?
  It operates from DC to 5kHz for high-speed applications.
• Can I reverse the output logic?
  Yes, it features user-selectable phase reversal for output configuration.

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