Description
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Model | 3500/42-01-00 |
| Manufacturer | Bently Nevada |
| Product Series | 3500 Machinery Protection System |
| Product Type | Proximity Monitor Module |
| Number of Channels | 4 channels |
| Input Types | Proximity transducer, seismic sensor signals |
| Sensor Compatibility | Bently Nevada proximity probes and compatible velocity/seismic inputs |
| Measurement Functions | Radial vibration, axial position, differential expansion, eccentricity (configuration dependent) |
| Signal Processing | Dynamic and static measurement processing |
| Alarm Functions | Alert and Danger monitoring |
| Communication | 3500 rack internal communication bus |
| Output | Buffered transducer signal through rack interface |
| Mounting | 3500 rack slot installation |
| Power Supply | Supplied by 3500 rack power module |
| Configuration Software | 3500 Rack Configuration Software |
| Application Standard | Machinery protection monitoring systems |
Product Introduction
Bently Nevada 3500/42-01-00 Product Introduction
Bently Nevada 3500/42-01-00 is a four-channel Proximity Monitor module designed for the 3500 Machinery Protection System. It interfaces with proximity probes and vibration sensors to measure shaft displacement, vibration levels, and machine mechanical condition parameters used for protection and diagnostic functions.
The Bently Nevada 3500/42-01-00 is widely used in rotating equipment monitoring applications where accurate vibration and position data are required. Before replacement, confirm probe type, channel configuration, rack firmware, and alarm settings because the monitor module is only one part of the complete machinery protection loop.
140734-02
Application Scenarios & Field Pitfalls (The Engineer’s Perspective)
Engineering Pain Point
A critical compressor trips unexpectedly during operation. The control system shows a shutdown command, but the real question is whether the machine actually exceeded vibration limits or whether the monitoring chain produced an incorrect signal.
Machinery protection systems require careful verification. A vibration monitor fault can originate from the probe, extension cable, proximitor, monitor module, or configuration settings.
Typical Applications
- Oil & Gas – Compressor vibration monitoring, turbine shaft displacement measurement, and API 670 protection systems.
- Power Generation – Steam turbine vibration monitoring, generator shaft position measurement, and rotating equipment protection.
- Petrochemical – Centrifugal pump and compressor condition monitoring.
- Industrial Manufacturing – Large motor, gearbox, and high-speed rotating machinery protection.
Technical Pitfalls to Avoid
- Verify Probe and Input Configuration
The 3500/42 module must match the installed sensor type and measurement configuration. A proximity probe system cannot be treated the same as a seismic vibration input. - Check Rack Configuration Before Swapping Modules
The physical module may install correctly while the configured channel settings remain incorrect. Always compare the existing 3500 configuration file before replacement. - Inspect the Entire Transducer Loop
Do not replace the monitor module immediately after a vibration alarm. Check probe gap voltage, extension cable condition, proximitor operation, and field wiring first.
Related Products
- Bently Nevada 3500/42M 140482-01
Enhanced version of the 3500/42 monitor family with expanded configuration capability and newer hardware revisions. - Bently Nevada 3500/40 126615-01
Proximity Monitor module used for similar displacement and vibration measurement applications. - Bently Nevada 3500/45 176449-04
Position Monitor module designed for axial position, differential expansion, and related shaft position measurements. - Bently Nevada 3500/50 133388-01
Tachometer Module used for speed measurement and overspeed protection applications. - Bently Nevada 3500/15 125840-02
Power Supply Module providing rack power for 3500 monitoring systems. - Bently Nevada 3500/20 125744-02
Rack Interface Module providing communication and system management functions. - Bently Nevada 3500/22M 138607-01
Transient Data Interface module used for communication with monitoring software and data acquisition systems. - Bently Nevada 3500 System Rack
Modular machinery protection platform supporting monitor modules, power supplies, and communication interfaces.
