
140471-01 3500/42M is a Prox/Velom I/O Module with Internal Terminations developed for the Bently Nevada 3500 Machinery Protection System and is designed to work with the 3500/42M Proximitor/Seismic Monitor. It provides the interface between field sensors and the monitor, supporting the connection of proximity probes, Velomitor® sensors, seismic transducers, and other vibration monitoring devices. Using an internal termination configuration, the module is installed at the rear of the 3500 rack and is widely applied in rotating equipment monitoring for steam turbines, gas turbines, compressors, pumps, generators, and other critical machinery.
We supply the 140471-01 module with clearly identified model information and support verification based on your installed 3500 system configuration to help reduce procurement risks. Global shipping, responsive quotation service, and support for planned maintenance, emergency replacement, and spare parts inventory make it suitable for a wide range of industrial automation and machinery protection projects.
Technical Specifications
| Manufacturer | Bently Nevada |
| Product Model | 140471-01 |
| System | 3500 Machinery Protection System |
| Compatible Monitor | 3500/42M Proximitor Seismic Monitor |
| Product Type | Prox/Velom I/O Module |
| Termination Type | Internal Termination |
| Input Type | Proximity / Velocity / Seismic Sensor Signals |
| Channels | 4-channel monitoring architecture |
| Installation Position | Rear of 3500 Rack |
| Configuration | Through 3500 Rack Configuration Software |
| Application | Machinery Condition Monitoring |
| Replacement Type | Spare / Replacement Module |
|
Origin |
USA |
|
Dimension |
26*16*5cm |
|
Weight |
0.34kg |
| HS code | 8538109000 |
Key Features
--Compatible with Bently Nevada 3500/42M Monitoring System
The 140471-01 is specifically designed for the 3500/42M Proximitor Seismic Monitor platform and provides the required sensor interface functions within the 3500 rack architecture.
--Internal Termination Design
This I/O model uses an Internal Termination configuration, allowing field wiring connections directly through the rear I/O module structure without requiring external termination blocks.
--Multi-Sensor Input Capability
The I/O module supports connection with:
Proximitor proximity probes
Velomitor velocity sensors
Seismic transducers
Prox/Accel sensors
--Machinery Protection Application
When integrated with the 3500/42M monitor, the system can monitor parameters including:
Radial vibration
Shaft position
Velocity
Acceleration
Differential expansion
Eccentricity
Firmware & Software Requirements
|
3500/42M Proximitor*/Seismic Monitor
|
3500/01 software, version 2.50 or later
3500/02 software, version 2.20 or later
3500/03 software, version 1.21 or later
|
|
Internal Barrier I/O Modules
|
See the 3500 Internal Barrier
datasheet (part number 141495-01)
|
|
Shaft Absolute
|
3500/42M Module Firmware, revision B
3500/01 Software, version 2.61
DM2000 Software, version 3.10
The 3500 Proximitor / Seismic Monitor, version M
|
|
REBAM
|
3500/40M Module Firmware – Revision 2.1
3500/01 Software, version 3.30
3500/02 Software, version 2.40
3500/03 Software, version 1.40
DM2000 Software, version 3.40
The 3500 Proximitor Monitor, version M
|
|
Acceleration II,
Velocity II,
Circular Acceptance Region
|
3500/42M Module Firmware, revision 2.10
3500/01 Software, version 3.20
DM2000 Software, version 3.30
The 3500 Proximitor Monitor, version M
|
Related Modules
Compatible products:
| Model | Description |
|---|---|
| 176449-01 | 3500/42M Proximitor Seismic Monitor |
| 128229-01 | Proximitor/Seismic I/O Module Internal Termination |
| 140482-01 | Prox/Velom I/O Module External Termination |
| 138708-01 | Shaft Absolute I/O Module |
Maintenance
Maintenance Recommendations
Check module status indicators regularly.
Verify sensor wiring connections.
Confirm alarm configuration parameters.
Keep spare I/O modules available for critical machinery systems.
Perform system diagnostics through 3500 software tools.
FAQ
Q: What is the relationship between 140471-01 and 3500/42M Monitor?
A: The 3500/42M Monitor is responsible for collecting, analyzing, and handling alarm signals such as vibration, displacement, and speed. While the 140471-01 serves as the rear I/O module, it is responsible for completing the electrical connection between the on-site sensors and the monitoring module. Both need to be installed together to function properly.
Q: Where is this module installed?
A: 140471-01 is installed at the rear of the BENTLY NEVADA 3500 Rack and corresponds to the 3500/42M Monitor. Electrical connections are made through the back panel.
Q: Is it necessary to reconfigure the system after replacing 140471-01?
A: If the model is replaced with an identical one, generally there is no need to modify the system configuration.
If you are changing to a different version or adjusting the monitoring type, it is recommended to use the 3500 Rack Configuration Software to check and confirm the system configuration.
Q: What information needs to be provided when making an inquiry?
A: To obtain more accurate quotations and delivery information, it is recommended to provide:
Product complete model number Purchase quantity
Do you accept the alternative model?
Destination country or region
Is there a delivery time requirement?
Is original packaging or a specific transportation method required?












