+86 18030182217
+86 18030182217
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Description
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Product Overview
The Bently Nevada 3500/25 135473-01 is a high-performance Enhanced Keyphasor Module designed for critical machinery protection systems. As a core component of the 3500 Series, this half-height, dual-channel module provides precise rotational speed and phase reference signals for rotating equipment such as turbines, compressors, and pumps. It converts input signals from proximity probes or magnetic pickups into digital keyphasor signals, enabling accurate measurement of shaft speed, phase alignment, and vibration analysis.
Engineered for industrial reliability, the 3500/25 135473-01 features optical isolation and internal barriers to mitigate electromagnetic interference and ensure signal integrity in harsh environments. With support for up to four keyphasor inputs in standard configurations and eight in paired setups, it meets API 670 requirements for machinery protection systems. The module’s 12-bit resolution and ±0.1% accuracy at constant speed ensure reliable data acquisition for predictive maintenance and compliance with safety standards.
In automation systems, the 3500/25 135473-01 serves as a timing reference for vibration monitoring modules (e.g., 3500/42M) and communicates seamlessly with other 3500 Series components via the rack backplane. Its modular design allows easy integration into legacy or new systems, reducing downtime during upgrades. By delivering real-time rotational data, this module optimizes machinery performance, minimizes unplanned outages, and extends asset lifespan across industries like oil & gas, power generation, and manufacturing.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 3500/25 135473-01 |
| Manufacturer | Bently Nevada |
| Product Type | Enhanced Keyphasor Module (3500 Series) |
| Input Channels | 2 (dual-channel) |
| Input Signals | Proximity probes (8–24 VDC excitation) or magnetic pickups (3.3 Hz min) |
| Output Signals | TTL/CMOS digital, 4–20 mA analog (optional) |
| Speed Range | 0–50,000 RPM |
| Phase Accuracy | ±0.1° at constant speed; ±11° at 10 kHz (isolated I/O) |
| Physical Dimensions | 241.3 mm x 24.4 mm x 163.1 mm (9.50″ x 0.96″ x 6.42″) |
| Weight | 0.46 kg (1.01 lb) |
| Power Supply | 19.2–26.4 VDC |
| Operating Temperature | -40°C to +85°C (-40°F to +185°F) |
| Communication | Proprietary 3500 bus (Modbus RTU via 3500/92 gateway) |
| Mounting | Rack-mounted in 3500 Series enclosure |
| Certifications | API 670, SIL 3 (when part of TMR system), CE, RoHS |
Key Features and Advantages
High Precision Signal Processing: The 3500/25 135473-01 delivers 12-bit resolution and ±0.1% accuracy for precise speed and phase measurements, critical for detecting early signs of machinery imbalance or misalignment. Its dual-channel design supports simultaneous monitoring of two keyphasor inputs, enhancing system redundancy.
Isolation and Noise Immunity: Internal barriers and optical isolation protect against electrical transients and noise, ensuring stable performance in high-vibration or electromagnetic interference (EMI) environments. The isolated I/O variant (135473-01) provides galvanic isolation for parallel signal distribution to control systems.
Flexible Configuration: The module supports multi-event-per-turn input signals, enabling phase-locked vibration analysis for complex machinery. Its field-upgradeable firmware allows future feature enhancements without hardware replacement.
Rugged Industrial Design: With an IP54-rated enclosure and wide temperature range (-40°C to +85°C), the module withstands extreme conditions in oil rigs, power plants, and manufacturing facilities. Front-panel LEDs indicate operational status (green) and faults (red), simplifying troubleshooting.
Compliance and Compatibility: Built to API 670 standards, the 3500/25 135473-01 integrates with Bently Nevada’s System 1 software for advanced analytics. It also supports Modbus RTU via the 3500/92 gateway, facilitating data exchange with third-party systems.
Application Areas
The Bently Nevada 3500/25 135473-01 excels in applications requiring rotational speed and phase monitoring:
- Oil & Gas: Monitoring turbines and compressors in offshore platforms and refineries to detect bearing wear or shaft misalignment.
- Power Generation: Synchronizing generators and optimizing steam turbine performance in power plants.
- Manufacturing: Ensuring precise rotation of conveyor belts and motors in automotive and food processing lines.
- Water/Wastewater: Controlling pump speed and detecting cavitation in treatment facilities.
- Aerospace: Analyzing engine dynamics during ground testing of aircraft turbines.
By converting analog sensor data into actionable insights, the 3500/25 135473-01 enables predictive maintenance strategies, reduces repair costs, and ensures compliance with safety regulations. Its versatility makes it suitable for both standalone systems and large-scale automation networks.
Related Products
- 3500/42M: Vibration monitor module for analyzing 1X and 2X vibration signals, paired with the 3500/25 for comprehensive machinery health assessment.
- 3500/92: Communication gateway enabling Modbus RTU/TCP connectivity between the 3500/25 and PLCs or SCADA systems.
- 3500/53: Speed monitor module for critical overspeed protection, complementing the 3500/25 in triple modular redundant (TMR) configurations.
- 3500/15: Rack power supply ensuring stable operation of the 3500/25 and other 3500 Series modules.
- 330130 Proximity Probe: Sensor compatible with the 3500/25, providing high-resolution shaft position data.
- 149369-01: Upgraded keyphasor module replacing the legacy 125792-01, offering enhanced signal processing while maintaining backward compatibility.
Installation and Maintenance
Pre-Installation Preparation:
Power off the 3500 rack and verify grounding. Use Bently Nevada’s Rack Configuration Software to assign slot addresses and configure input parameters (e.g., signal type, scaling). Attach the 3500/25 to the rack using DIN rail mounts, ensuring proper alignment with backplane connectors. For isolated applications, connect the module to a 24 VDC power supply and terminate field wiring via the internal barrier terminals.
Power off the 3500 rack and verify grounding. Use Bently Nevada’s Rack Configuration Software to assign slot addresses and configure input parameters (e.g., signal type, scaling). Attach the 3500/25 to the rack using DIN rail mounts, ensuring proper alignment with backplane connectors. For isolated applications, connect the module to a 24 VDC power supply and terminate field wiring via the internal barrier terminals.
Maintenance Recommendations:
Regularly inspect LEDs for fault indicators and clean dust from vents to prevent overheating. Recalibrate the module annually or after exposure to extreme vibrations using Bently’s 3500 Test Utilities. Replace the module if physical damage or inconsistent readings occur, leveraging the 3500/25’s hot-swap capability to minimize downtime.
Regularly inspect LEDs for fault indicators and clean dust from vents to prevent overheating. Recalibrate the module annually or after exposure to extreme vibrations using Bently’s 3500 Test Utilities. Replace the module if physical damage or inconsistent readings occur, leveraging the 3500/25’s hot-swap capability to minimize downtime.
Product Warranty and Support
The Bently Nevada 3500/25 135473-01 is backed by a 1-year warranty, covering defects in materials and workmanship. Bently’s global support network provides 24/7 technical assistance for configuration, troubleshooting, and firmware updates. With spot inventory and a 3-day delivery time after payment, customers benefit from rapid deployment and reduced project delays. This commitment to quality ensures seamless integration and long-term performance in mission-critical industrial environments.
HS:7326909000
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