Overview
The MTL 4016 Proximity Detector Interface Unit is part of Eaton’s MTL4000 series, designed to safely interface proximity detectors or switches located in hazardous areas with safe-area control and shutdown systems. Each channel features dual independent relay outputs, enabling a single sensor to drive both process control and safety shutdown circuits simultaneously.
Moreover, the unit provides phase-reversal switches for flexible alarm configuration and includes comprehensive line fault detection (LFD) to identify open, shorted, or earth-fault conditions.
Built with MTL’s strong legacy in intrinsic safety, the 4016 is widely adopted in applications requiring high reliability, redundancy, and compliance with global hazardous-area standards.
Technical Data
| Parameter | Specification |
|---|---|
| Model Number | MTL 4016 |
| Operating Temperature | –20°C to +60°C |
Application
The MTL 4016 is engineered for hazardous-area NAMUR sensor interfacing, especially where redundancy and safety compliance are mandatory. It is typically used for:
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Oil & gas production and refining – Isolated and fault-monitored proximity input signals for ESD and DCS systems.
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Chemical and petrochemical plants – Dual-output design supports both control and shutdown logic simultaneously.
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Power generation – Reliable monitoring of turbine overspeed, valve position, or boiler safety limit switches.
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Factory automation – Seamless integration with NAMUR sensors for safe machinery feedback.
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SCADA and remote I/O systems – Long-distance signal transmission with comprehensive LFD for predictive maintenance.
The dual-relay output capability allows one sensor to feed two separate control paths, providing cost-effective redundancy without additional hardware. Meanwhile, LFD ensures early detection of wiring problems, reducing downtime and improving plant safety.
FAQ
Q1: How many sensors can the MTL 4016 support?
A: It supports two NAMUR sensors, each with two relay outputs.
Q2: Is it compatible with NAMUR proximity detectors?
A: Yes—full compliance with NAMUR NE43 sensor characteristics.
Q3: Does it offer line fault detection?
A: Yes—detects open circuit, short circuit, and earth-fault conditions.
Q4: Which industries use the MTL 4016?
A: Oil & gas, chemical, petrochemical, power generation, factory automation, and SCADA systems.
Q5: How can alarms be configured?
A: Each channel features a phase-reversal switch, allowing alarms to activate on either sensor state.
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