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Product Overview
The Bently Nevada 3500/40M with I/O module 135489-04 is a four-channel monitor module for the Bently Nevada 3500 Machinery Health Protection System. It accepts signals from Bently Nevada proximity probes, conditions them into vibration and position measurements, and continuously compares the results with user-configurable alarm setpoints to support machinery protection.
The part number 135489-04 refers to the associated Proximitor I/O module with internal safety barriers and internal terminals. This I/O module connects field proximity probes to the 3500/40M monitor module and is suitable for applications where internal termination and intrinsic safety barriers are required.
Each channel can be configured through the 3500 rack configuration software to monitor radial vibration, axial position, differential expansion, eccentricity and REBAM rolling-element bearing vibration. The monitor channels are configured in pairs: channels 1 and 2 perform one function, and channels 3 and 4 perform the same or another function.
Key Features
- 4-channel Proximitor monitor
Accepts Bently Nevada proximity probe inputs for displacement-based monitoring. - Multi-parameter monitoring
Supports radial vibration, axial position, differential expansion, eccentricity and REBAM. - Alarm and trip support
Continuously compares monitored values with configured alert and danger setpoints. - I/O module 135489-04
Proximitor I/O module with internal safety barriers and internal terminals. - Front-panel LED indicators
OK, TX/RX and bypass LEDs help operators check module status quickly. - Sensor buffer outputs
Front-panel coaxial connectors provide buffered sensor outputs with short-circuit protection. - 3500 rack compatible
Designed for the Bently Nevada 3500 series rack system and supports hot-swappable maintenance in a properly configured rack.
Typical Applications
- Steam and gas turbines
- Centrifugal and axial compressors
- Generators and exciters
- Industrial fans and blowers
- Pumps, gearboxes and large motors
- Critical rotating equipment in power, oil & gas, petrochemical and heavy industrial plants
Technical Specifications
| Item | Detail |
|---|
| Item | Detail |
|---|---|
| Product Name | Bently Nevada 3500/40M Monitor Module |
| Associated I/O Module | 135489-04 |
| Module Type | 3500/40M Proximitor Monitor |
| Series | Bently Nevada 3500 Machinery Health Protection System |
| Channel Count | 4 channels |
| Supported Inputs | Bently Nevada proximity probes |
| Typical Measurement Functions | Radial vibration, axial position, differential expansion, eccentricity, REBAM |
| Sensor Supply | -24 V DC |
| Typical Power Consumption | Approx. 7–7.7 W |
| Brand | Bently Nevada |
| Origin | USA |
| Condition | New / Surplus / Refurbished, depending on stock |
⚠️ Note: The exact front panel part number, firmware version, alarm configuration, certification and compatibility should be confirmed by the actual nameplate or official datasheet before ordering.
Why Choose This Module
- Suitable for proximity-probe-based vibration and position monitoring
- Helps protect critical turbines, compressors and pumps
- Supports radial vibration, axial position, differential expansion and eccentricity
- I/O module 135489-04 provides internal safety barriers and internal terminals
- Fits into existing Bently Nevada 3500 rack systems
- Suitable for global spare parts procurement and replacement projects
3500/40M 135489-04
FAQ
What is Bently Nevada 3500/40M 135489-04?
It is a 3500/40M Proximitor monitor module with the associated I/O module 135489-04, used for displacement-based vibration and position monitoring in the Bently Nevada 3500 system.
What sensors can it accept?
It accepts Bently Nevada proximity probe signals. It is not designed for velocity or accelerometer inputs like the 3500/42M.
What is the difference between 3500/40M and 3500/42M?
The 3500/40M is a Proximitor monitor for proximity probe inputs, while the 3500/42M supports proximity probes, velocity sensors and accelerometers and provides 4–20 mA recording output.
Can it replace another 3500/40M module?
Replacement depends on the original part number, I/O module, firmware, rack configuration and alarm settings. Please confirm compatibility before purchase.
Which industries use this module?
It is widely used in power generation, oil & gas, petrochemical, steel and heavy manufacturing for rotating equipment protection.
BENTLY BRAND
| 125760-01 | 133396-01 | 3500/54M |
| 125768-01 | 133819-02 | 3500/60 163179-01 |
| 125800-01 | 135473-01 | 3500/61 |
| 125840-01 | 135613-01-00 | 3500/61-01-01 |
| 2300/20-00 | 3500/64M | 3500/62-03-00 |
Recommended other models
Bently Nevada 3500/42-01-00 4-Channel Acceleration Monitor
Bently Nevada 3500/42 140471-01 | 4-Channel Proximitor/Seismic Monitor
Supplies industrial spare parts covering well‑known international brands: ABB, GE, Bently Nevada, Emerson, Honeywell, Schneider, EPRO, Yokogawa, Woodward, Foxboro and Invensys TRICONEX.
We maintain ample stock, offer fast lead times and deliver products with stable, reliable quality.
- ✅ ABB: PP846 HMI Touch Screen, 5SHY Series IGCT, PM Series Controllers, AI/DO I/O Modules, SP Series Bailey Modules
- ✅ GE: VMIC, IS200 & IS215 Series CPU and Modules
- ✅ Emerson: Control Modules, EPRO Probes
- ✅ Westinghouse: 1C Series Modules
- ✅ Honeywell: CC Series Modules
- ✅ Schneider: 140 Series Modules
- ✅ Triconex: Full Series Safety Instrumented System Modules
- ✅ Bently: 3500 Series Vibration Monitoring System
- ✅ Rexroth: Industrial Motors & Drives
- ✅ Foxboro: Compact Control Modules
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