RET4000 Measurement Node

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RET4000 Measurement Node is part of Parametric's time-synchronized, mobile RET measurement system, designed to record analog and digital values from external sensors. Built for harsh environments, it features a rugged, IP67-rated, high vibration-resistant design, ensuring reliable operation in demanding industrial and railway applications.

With its modular architecture, RET4000 can be enhanced with additional features to meet specific measurement needs, making it a versatile, future-proof solution for data acquisition and real-time monitoring.

• 8 isolated analog inputs ±2.5V / ±10V, up to 500,000 samples per second
• 4 digital inputs (5-75V) with configurable safety function
• 2 digital outputs (solid-state relay, 1A)
• Concurrent GNSS / GPS for accurate geolocation
• 3-axis IMU for internal motion sensing
• WiFi Mesh capability for synchronized measurements
• LTE modem with dual SIM for reliable connectivity
• CAN 2.0 support for seamless integration
• Isolated power supply options (24V / 48V / 110V variants)
• EN50155 Compliance for railway applications

Here are three sets available to suit different needs:

Add-ons:
✓ 2 IEPE Microphones for real-time acoustic analysis
✓ Supervised IEPE/ICP current sources for direct connection to piezoelectric vibration sensors
✓ ICP/IEPE-capable isolated analog inputs (up to 20kHz, BNC Male)

Use Case:
Designed for railhead and flange lubrication monitoring, this configuration enables vibration analysis and acoustic fault detection, helping operators evaluate lubrication efficiency and detect irregularities in rail-wheel interactions. This ensures optimal lubrication performance, reduces wear on wheels and rails, and prevents excessive material degradation—ultimately improving railway maintenance strategies.

Example: Measurement data from microphones

Add-ons:
✓ Pressure sensor (1–25 Bar) and vacuum sensor (-1 to 10 Bar) for precise pressure propagation measurement
✓ 2x 4-20mA analog inputs with internal 24V supply (M12 connector)
✓ ICP / IEPE-capable isolated analog inputs (up to 20kHz, BNC male)
✓ Puck Antenna with GNSS / LTE / WLAN for reliable data transmission
✓ RET4300-OD Base Unit & RCM7000 Connector Module for extended connectivity

Use Case:
This setup is specifically used for measurement and characterizing pressure propagation in braking systems. Typically, two units are required—one at the front and one at the rear of the train—to analyze braking performance comprehensively.

Example: Brake pressure propagation front to back

Add-ons:
✓ Integrated IMU (3-axis accelerometer & gyroscope) with up to 500 samples per second
✓ Concurrent GPS/GNSS data logging (25 updates per second) for high-accuracy tracking
✓ Puck Antenna with GNSS / LTE / WLAN for real-time data synchronization
✓ RET4300-OD Base Unit for seamless system integration
✓ 12V power supply with car power connector for mobile operation

Use Case:
This tracking and monitoring system is designed for operational data acquisition, particularly for identifying problems at railway switches. It records detailed movement and location data, allowing railway operators to analyze vehicle dynamics and switch interactions for predictive maintenance and performance evaluation.

Example: Fright train path from Freiburg to Milan (curvature based coloring)

• Application-Specific Configurations – Tailored solutions for vibration monitoring, pressure measurement, and data tracking
• High-Precision Data Acquisition – IMU, GNSS, and IEPE/ICP sensors ensure reliable and detailed analysis
• Real-Time Wireless Connectivity – LTE, WiFi MESH, and Ethernet options for seamless data integration
• Designed for Harsh Environments – Industrial-grade components and rugged build for reliable railway operation

These RET4000 standard sets offer specialized solutions for railway monitoring, braking system analysis, and operational data tracking, ensuring enhanced safety, reliability, and efficiency.

📩 Contact us today to integrate the RET4000 into your monitoring system!