💡 BENTLY NEVADA 3500/65 145988-02 – Velocity and Acceleration Monitor Module
⚙️ Product Overview
The Bently Nevada 3500/65 145988-02 is a high-performance velocity and acceleration monitor designed for continuous condition monitoring and machinery protection. Part of the renowned 3500 Machinery Protection System, this module measures dynamic vibration parameters to safeguard rotating machinery such as turbines, compressors, and pumps. It delivers real-time diagnostics, alarm generation, and system logging to prevent unexpected failures and optimize equipment performance.
The 3500/65 combines high accuracy sensing, fast data sampling, and advanced signal processing to detect mechanical issues early—such as imbalance, misalignment, or bearing wear. Its modular design allows flexible installation within 3500 racks and seamless integration with plant-wide control systems.
📊 Technical Data / Datasheet
| Parameter | Specification |
|---|---|
| Model Number | 3500/65 |
| Part Number | 145988-02 |
| Measurement Type | Velocity and Acceleration |
| Channels | 2 independent channels |
| Input Type | Proximity probe or accelerometer |
| Input Range | ±20 V (differential input) |
| Frequency Response | 10 Hz to 10 kHz |
| Accuracy | ±0.5% of full scale |
| Sampling Rate | 25 kHz per channel |
| Alarm Setpoints | 2 configurable levels per channel (Alert / Danger) |
| Output Options | 4–20 mA, Buffered Output, Relay Contacts |
| Communication | System internal bus via 3500 rack |
| Power Supply | 24 VDC nominal from system backplane |
| Signal Processing | True RMS detection and peak filtering |
| Data Storage | Non-volatile memory for configuration and alarm logs |
| LED Indicators | Channel OK, Bypass, Alert, Danger |
| Configuration Interface | 3500 Configuration Software via RS-232 or Ethernet |
| Operating Temperature | -30°C to +65°C |
| Humidity | 95% non-condensing |
| Mounting | 3500 system rack slot (14-position compatible) |
| Dimensions | 241 mm × 24 mm × 187 mm |
| Weight | Approx. 0.5 kg |
| Compliance | CE, CSA, ATEX, IECEx |
| Enclosure Protection | IP20 |
| Vibration Limit | 5 g RMS operational, 10 g peak |
| Firmware Update | Field upgradeable through configuration port |
🧠 Key Features
- Dual Channel Design: Monitors two independent vibration signals simultaneously with isolated circuits for accuracy.
- Advanced Signal Filtering: Includes programmable high-pass and low-pass filters for noise suppression and improved diagnostics.
- Configurable Alarms: Supports dual threshold (Alert/Danger) system with relay activation for automated shutdown or warning.
- Seamless Integration: Communicates with Bently Nevada 3500 racks, enabling centralized system diagnostics and real-time visualization.
- High Reliability: Designed for continuous operation in harsh industrial and offshore environments.
- Modular Compatibility: Compatible with all 3500 system modules and backward compatible with older Bently protection systems.
🔧 Installation & Maintenance
Installation requires slot insertion into the Bently Nevada 3500 rack, with appropriate sensor and relay connections. All configuration and calibration are performed using the 3500 Configuration Software. The unit is designed for minimal maintenance — regular inspection of sensor connections, signal integrity checks, and firmware updates are recommended. LED indicators provide quick visual diagnostics of module health and alarm states.
🏭 Industrial Insight
In modern industrial reliability engineering, predictive maintenance has become a cornerstone of operational safety and efficiency. The Bently Nevada 3500/65 represents the forefront of machine condition monitoring, offering continuous insight into equipment health. Industries such as oil & gas, petrochemicals, and power generation are increasingly integrating such smart monitoring systems to reduce downtime and improve asset longevity. With its proven design and diagnostic intelligence, this module remains a standard in the evolution of Industry 4.0 maintenance technologies.
🔗 Product Source
👉 Visit Official Supplier – DCS PLC System
🧩 Recommended Similar Models
| Model | Description | Manufacturer | Measurement Type | Link |
|---|---|---|---|---|
| Bently Nevada 3500/42M 140734-02 | Proximitor / Seismic Monitor for displacement and vibration | Bently Nevada | Displacement / Velocity | https://www.dcsplcsystem.com/ |
| Bently Nevada 3500/45 176449-04 | Position Monitor Module for shaft movement | Bently Nevada | Position / Displacement | https://www.dcsplcsystem.com/ |
| Bently Nevada 3500/46M 288055-01 | Temperature Monitoring Module for rotating machinery | Bently Nevada | Temperature | https://www.dcsplcsystem.com/ |
| Bently Nevada 3500/32M 125720-01 | Relay Module for alarm output and logic interlock | Bently Nevada | Relay / Logic | https://www.dcsplcsystem.com/ |
| Bently Nevada 3500/50 133388-01 | Tachometer Module for speed and overspeed detection | Bently Nevada | Speed / Frequency | https://www.dcsplcsystem.com/ |
🧩 Summary:
The Bently Nevada 3500/65 145988-02 provides accurate, real-time velocity and acceleration monitoring for critical rotating equipment. With dual-channel precision, robust diagnostics, and seamless integration into the 3500 system, it delivers the reliability required for advanced industrial and marine applications. Its proven architecture supports modern predictive maintenance strategies, making it a core component in achieving zero unplanned downtime and maximum operational efficiency.
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