BENTLY NEVADA 3500/42M 176449-02 — Proximitor / Seismic Monitor Module | 3500 Series Platform
Engineering Background
The Bently Nevada 3500 Series is the industry benchmark for continuous machinery protection in rotating equipment applications. Deployed across power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide, the 3500 rack-based architecture provides real-time vibration, position, and dynamic measurement with deterministic response times critical for turbine, compressor, and pump protection.
Product Positioning
The 3500/42M (P/N 176449-02) is a dual-channel Proximitor® / Seismic Monitor module designed to accept inputs from both eddy-current proximity probes and seismic (velocity/accelerometer) transducers within a single slot. This flexibility makes it the preferred choice for facilities standardizing on a unified monitoring platform across diverse machine types — eliminating the need for separate monitor cards per transducer technology.
Complete Technical Specifications
| Manufacturer | Bently Nevada (Baker Hughes) |
| Part Number | 176449-02 |
| Model | 3500/42M |
| Module Type | Proximitor® / Seismic Monitor |
| Channels | Dual-channel (2 independent measurement channels) |
| Transducer Compatibility | Eddy-current proximity probes; Seismic velocity / accelerometer transducers |
| Platform | Bently Nevada 3500 Series Rack |
| Rack Compatibility | 3500/05 Rack (standard & TMR configurations) |
| Communication | System 1 / TDI Ethernet integration via rack I/O module |
| Measurement Parameters | Radial vibration, axial position, seismic velocity, acceleration |
| Alert / Danger Setpoints | Independently configurable per channel via rack configuration software |
| Power Supply | Supplied via 3500 rack backplane (no external wiring required) |
| Operating Temperature | 0 °C to +60 °C |
| Weight | 850 g |
| Approvals | CE, FM, CSA (refer to OEM datasheet for full certification matrix) |
| Condition | Surplus / Refurbished — tested and verified |
Proven Application Environments
- Power Generation: Steam turbines, gas turbines, generators — shaft vibration and bearing monitoring
- Oil & Gas: Centrifugal compressors, expanders, pipeline pumps — API 670 compliant installations
- Petrochemical: Reactor agitators, large fans, critical rotating machinery protection
- Marine & Offshore: Propulsion systems and auxiliary machinery condition monitoring
- Pulp & Paper / Mining: High-availability process machinery where unplanned downtime is unacceptable
Engineering Advantages
- Dual-technology input: Accepts both proximity and seismic transducers — one card covers multiple machine types
- Hot-swap capable: Designed for live rack insertion/removal without system shutdown (verify with site safety procedures)
- Configurable via software: Full setpoint, filtering, and alarm configuration through Bently Nevada rack configuration tools
- API 670 compliant architecture: Meets international standard for machinery protection systems
- Deterministic response: Hardware-based trip logic ensures sub-millisecond protection response independent of software state
- Backward compatible: Drop-in replacement for earlier 3500/42 variants in existing rack installations
System Architecture & Signal Flow
The 3500/42M installs into any standard slot of a 3500/05 rack. Transducer signals enter via the I/O module terminal block on the rear of the rack, pass through the backplane to the monitor card, where signal conditioning, filtering, and measurement processing occur. Processed values are transmitted to the rack communication gateway for integration with DCS, SCADA, or System 1 condition monitoring software via Modbus TCP or OPC-DA/UA. Relay outputs for Alert and Danger are routed through the rack’s relay module to field shutdown logic.
Sourcing & Quality Verification
- All units sourced from documented surplus channels — OEM decommissions, plant upgrades, and authorized distributors
- Each module undergoes visual inspection, firmware version verification, and functional bench test prior to listing
- Serial number and revision level recorded and available upon request
- Packaging: anti-static bag + foam-lined carton; ESD-safe handling throughout
- Certificate of conformance (CoC) available for qualified B2B orders
Procurement Process
- Step 1 — Inquiry: Submit your P/N, required quantity, and delivery timeline via the contact form or email below
- Step 2 — Quotation: Receive a formal quotation with unit price, lead time, and shipping options within 24 hours
- Step 3 — Order Confirmation: Purchase order accepted; payment via T/T, L/C, or platform checkout
- Step 4 — Shipment: Units dispatched with tracking, commercial invoice, packing list, and CoC (if requested)
- Step 5 — After-Sales: 90-day warranty on verified units; technical support available via email
Technical FAQ
Q: Is the 176449-02 a direct replacement for the 176449-01?
A: The -02 revision typically reflects a firmware or hardware ECO update. Physical and electrical compatibility with the 3500/05 rack is maintained. Confirm firmware compatibility with your System 1 version before installation.
Q: Can this module be used in a TMR (Triple Modular Redundant) rack?
A: Yes. The 3500/42M is compatible with both standard and TMR 3500/05 rack configurations when paired with the appropriate TMR I/O module.
Q: Do you provide configuration files or rack setup support?
A: We supply the hardware. Configuration is performed using Bently Nevada’s rack configuration software. We can provide guidance on configuration parameters upon request.
Q: What is the lead time for this part?
A: In-stock units typically ship within 1–3 business days. Contact us to confirm current availability.
Q: Can you supply multiple units for a plant-wide spares program?
A: Yes. Volume pricing is available for qualified B2B buyers. Please contact us with your total requirement.
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