Phoenix Contact MACX MCR-SL-2NAM-R-UP Isolation Amplifier

Phoenix Contact MACX MCR-SL-2NAM-R-UP Isolation Amplifier

The Phoenix Contact MACX MCR-SL-2NAM-R-UP isolation amplifier is a two-channel NAMUR signal conditioner engineered to protect and transmit signals with precision. It provides three-way electrical isolation, ensuring clear separation between input, output, and power supply. With built-in fault detection and wide supply voltage capability from 19.2 to 253 V AC/DC, it offers dependable performance across varied environments. Certified up to SIL 2 safety level, it is suitable for use in hazardous zones and demanding process industries. This device minimizes interference, improves operational reliability, and ensures safe signal transfer in automation systems.

The Phoenix Contact MACX MCR-SL-2NAM-R-UP delivers strong advantages in safety, flexibility, and integration. Its configurable DIP switches allow easy setup and adjustment, while LED indicators simplify diagnostics by showing status and errors at a glance. Relay outputs with changeover contacts provide dependable switching for NAMUR proximity sensors or floating contacts. Its compact DIN rail housing optimizes panel space and speeds up installation. With international safety and industry approvals, the unit is trusted for use in chemical plants, oil and gas operations, and industrial process control systems. This amplifier enhances system uptime, compliance, and efficiency in real-world applications.

Why Phoenix Contact MACX MCR-SL-2NAM-R-UP?

The Phoenix Contact MACX MCR-SL-2NAM-R-UP stands out because it merges safety, flexibility, and high reliability in one compact module. It’s engineered with dual channels, three-way isolation, and configurable DIP switches, making it adaptable to diverse automation needs. Its SIL 2 certification and global approvals ensure compliance with international standards, while the wide power supply range simplifies installation across facilities. For engineers and operators, this means reduced complexity, greater confidence in safety, and consistent performance under demanding industrial conditions.

What problem does it solve?

The Phoenix Contact MACX MCR-SL-2NAM-R-UP solves the critical challenge of safe and reliable signal transmission in hazardous and interference-prone environments. In process industries, signals from NAMUR sensors are often exposed to noise, faults, or environmental risks that can compromise system integrity. This amplifier isolates signals, detects line faults, and protects both control systems and personnel from unsafe conditions. By ensuring clear communication between field devices and control units, it eliminates downtime risks, prevents costly failures, and keeps operations running smoothly and securely.

Key Features & Specifications – Phoenix Contact MACX MCR-SL-2NAM-R-UP: 2865052

Download Phoenix Contact MACX MCR-SL-2NAM-R-UP 2865052 Datasheet

Commercial Information – Phoenix Contact MACX MCR-SL-2NAM-R-UP: 2865052

The Applications

1. Reliable Pump Monitoring in Oil & Gas

In upstream oil and gas operations, pumps are often exposed to explosive atmospheres where safety is critical. NAMUR sensors detect whether valves are correctly positioned or if flow is present. The MACX MCR-SL-2NAM-R-UP ensures these signals are transmitted securely through its three-way isolation and SIL 2 safety design. With built-in line fault detection, any wiring break or short is instantly reported, preventing hazardous false alarms. Relay outputs provide reliable communication with control systems, while LED indicators simplify maintenance. This makes it an excellent safeguard for continuous pump monitoring, reducing risk and improving operational uptime in demanding field conditions.

2. Tank Level Control in Chemical Storage

Chemical tank farms rely on precise level monitoring to prevent overflow, spillage, or pump dry running. NAMUR switches measure fluid levels, but signal transmission can be disrupted by corrosion, wiring issues, or interference. The MACX MCR-SL-2NAM-R-UP isolates these field signals from the control system, ensuring clear communication even in harsh environments. Its configurable DIP switches allow engineers to adapt to different sensor behaviors, while fault detection immediately identifies broken or shorted lines. By offering dependable relay outputs and wide voltage supply options, the amplifier guarantees accurate level reporting, protecting equipment, personnel, and stored chemicals while reducing downtime.

3. Valve Feedback in Refining Processes

In refinery automation, correct valve position feedback is essential for safe process control. NAMUR sensors installed on valves generate signals that confirm open or closed status. The MACX MCR-SL-2NAM-R-UP passes these signals securely to PLC or DCS systems using galvanic isolation, preventing interference or unsafe voltage transfers. With switchable logic modes, both normally-open and normally-closed sensors can be integrated easily. The built-in LEDs allow fast on-site verification of sensor states, simplifying maintenance and reducing troubleshooting time. This enhances both safety and efficiency by preventing incorrect valve readings, ensuring that refinery processes run smoothly and without costly interruptions.

4. Safety Interlocks in Wastewater Treatment

Wastewater treatment facilities often deal with explosive gases and long cable runs from field devices. NAMUR proximity sensors are used to monitor gates, hatches, and sludge levels, requiring dependable transmission to centralized systems. The MACX MCR-SL-2NAM-R-UP solves these challenges by isolating signals and detecting cable damage before it causes failures. Its SIL 2 approval ensures suitability for safety interlock functions, such as emergency shutdown circuits. Compact DIN rail mounting saves control cabinet space, while wide power supply compatibility allows easy integration into existing systems. By maintaining reliable sensor communication, it supports plant safety, regulatory compliance, and uninterrupted treatment operations.

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