MTL4516C MTL Instruments | Switch / Proximity Detector Interface

Overview

The MTL4516C by MTL Instruments is a high-performance Switch/Proximity Detector Interface designed for safe operation in hazardous environments. As a replacement for the MTL4516, this device is engineered to meet stringent industrial standards, ensuring reliability in critical applications. The interface provides line fault detection, compatibility with NAMUR sensors, and robust relay outputs, making it ideal for industrial automation and process control.

Technical Specifications

General Information

• Manufacturer: MTL Instruments
• Model: MTL4516C
• Type: Switch/Proximity Detector Interface
• Purpose: Replacement for MTL4516
• Number of Channels: Two

Input/Output Characteristics

• Normal Phase:
  • Outputs closed: Input > 2.1mA (< 2kΩ in the input circuit)
  • Outputs open: Input < 1.2mA (> 10kΩ in the input circuit)
  • Hysteresis: 200µA (650Ω nominal)
• Voltage to Sensor: 7 to 9V DC from 1kΩ ±10%
• Line Fault Detection (LFD):
  • User-Selectable: Switch-configurable on the unit’s side
  • Open-circuit alarm: On if Iin < 50µA; Off if Iin > 250µA
  • Short-circuit alarm: On if Rin < 100Ω; Off if Rin > 360Ω

Safety & Compliance

• Hazardous Area Inputs:
  • Zone 0, IIC, T6 hazardous area
  • Div. 1, Group A hazardous location
• Standards Compliance: BS EN60947–5–6:2001 (NAMUR proximity detectors)
• Safety Description (Per Channel):
  • Uo: 10.5V
  • Io: 14mA
  • Po: 37mW
  • Um: 253V RMS or DC

Outputs & Indicators

• Output Relays: Two single-pole changeover contacts
• LED Indicators:
  • Green: Power status
  • Yellow (Two): Channel status (on when output energized)
  • Red (Two): LFD indication (on when line fault detected)

Dimensions & Power

• Dimensions: 1.58 cm (D) x 10.98 cm (W) x 12.36 cm (H)
• Weight: Approx. 0.11 kg
• Power Consumption: 35mA at 24V
• Power Dissipation: 0.84W at 24V

Check official datasheet for more detailed information: MTLx516C