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Product Introduction
The Bently Nevada 3500/42E 287823-01 Vibration Monitor is a high-precision, multi-channel monitoring module designed for continuous protection of critical rotating machinery. As part of the Bently Nevada 3500 Series Machinery Protection System, it specializes in measuring radial vibration, thrust position, and shaft vibration to detect early signs of mechanical degradation.
This monitor integrates advanced digital signal processing with configurable alarm logic, ensuring accurate detection of imbalance, misalignment, bearing wear, and other dynamic faults. It is engineered to operate in demanding industrial environments, offering high reliability, minimal maintenance, and long service life.
Its modular design allows it to seamlessly fit into any 3500 rack configuration, supporting centralized data collection, condition monitoring, and integration with plant-wide control and safety systems.
Product Specifications
| Parameter | Description |
|---|---|
| Model Number | 3500/42E 287823-01 |
| Series | Bently Nevada 3500 Machinery Protection System |
| Measurement Types | Radial vibration, thrust position, shaft vibration |
| Number of Channels | 2 or 4 channels |
| Supported Sensors | Proximity probes, velocity transducers, accelerometers |
| Signal Processing | True RMS and Peak detection, programmable filters |
| Frequency Response | 0.1 Hz to 10 kHz (sensor dependent) |
| Dynamic Range | > 80 dB |
| Sampling Rate | Up to 1024 samples per channel/sec |
| Alarm Types | Alert and Danger (independent programmable thresholds) |
| Outputs | 4–20 mA, relay contacts, buffered outputs |
| Communication Interface | 3500 rack network and system interface |
| Operating Temperature | -30°C to +65°C |
| Power Supply | Via 3500 rack backplane |
| Dimensions | 228 x 50 x 289 mm |
| Weight | 1.27 kg |
| Mounting | Plug-in module for 3500 rack |
| Certifications | CE, CSA, ATEX, IECEx (depending on configuration) |
Product Applications
The 3500/42E 287823-01 is widely deployed in industrial and power generation facilities to ensure machinery safety and reliability. Typical applications include:
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Steam Turbines – Continuous rotor vibration monitoring for safe operation.
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Gas Turbines – Detection of imbalance, shaft misalignment, and bearing wear.
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Centrifugal Compressors – Protection from surge events and shaft vibration damage.
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Industrial Pumps – Identification of cavitation, impeller faults, and misalignment.
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Gearboxes – Monitoring of gear mesh vibration to detect early-stage wear.
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Fans and Blowers – Prevention of excessive vibration due to imbalance or resonance.
Product Advantages
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High Measurement Accuracy – Uses advanced DSP algorithms for precise data capture.
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Flexible Sensor Support – Compatible with a wide range of proximity probes, accelerometers, and velocity sensors.
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Programmable Alarm Logic – Tailored protection for different machinery types.
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Rugged Industrial Design – Operates reliably in harsh environments.
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Easy Integration – Fully compatible with the 3500 rack system and plant control networks.
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Predictive Maintenance Support – Provides both real-time and trend data for informed maintenance decisions.
FAQ
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What measurement functions does the 3500/42E 287823-01 support?
It measures radial vibration, thrust position, and shaft vibration depending on the connected sensors. -
Which sensor types can be used with this module?
It supports proximity probes, velocity transducers, and accelerometers. -
Does it process both RMS and peak values?
Yes, it offers both RMS and peak detection for improved vibration analysis. -
What is the available frequency range?
The frequency response is 0.1 Hz to 10 kHz, depending on the sensor type. -
How are alarms configured?
Two alarm levels, Alert and Danger, can be independently programmed through the 3500 Configuration Software. -
What is the role of the buffered output?
Buffered outputs allow technicians to connect portable analyzers without disrupting system monitoring. -
Can the module be replaced without shutting down the rack?
Yes, it is hot-swappable for quick maintenance and replacement. -
How is signal filtering handled?
The module uses programmable high-pass and low-pass filters to isolate the target vibration frequency range. -
Is it suitable for hazardous areas?
Yes, with the correct configuration it meets ATEX, IECEx, and CSA hazardous location standards. -
What is its maximum sampling capability?
It supports up to 1024 samples per channel per second for detailed data analysis.
Related Models (Same Series or Compatible)
| Model | Description |
|---|---|
| 3500/40M | Proximitor Monitor for shaft position and vibration measurement. |
| 3500/44M | Aeroderivative Gas Turbine Vibration Monitor. |
| 3500/45 | Position Monitor for axial displacement measurement. |
| 3500/46M | Hydro Monitor for hydroelectric turbine vibration. |
| 3500/22M | Transient Data Interface Module for capturing dynamic events. |
| 3500/32M | Relay Module for alarm output control. |
Popular Bently Nevada Models
| Model | Description |
|---|---|
| 3500/15 | Power Supply Module for 3500 systems. |
| 3500/20 | Rack Interface Module for communication and system integration. |
| 3500/25 | Keyphasor Module for phase reference signals. |
| 3500/60 | Temperature Monitor for bearing and casing temperature measurement. |
| 3500/65 | Velocity Monitor for casing-mounted sensors. |
| 3500/77M | Recovery Delay Module for advanced alarm logic handling. |
