Genuine Bently Nevada 3500/42M 176449-99 3500 Series - Industrial Automation Part

Bently Nevada 3500/42M 176449-99 Proximitor Seismic Monitor | 3500 Series

Description

Bently Nevada 3500/42M 176449-99 – Dual-Channel Proximitor / Seismic Monitor | 3500 Machinery Protection System

Engineering Background
The Bently Nevada 3500 Series is the global standard for continuous online machinery protection. Deployed in power generation, oil & gas, petrochemical, and heavy industrial facilities worldwide, the platform provides real-time vibration, position, and dynamic measurement data that prevents catastrophic rotating-machinery failures.

Product Positioning
The 3500/42M (P/N 176449-99) is a dual-channel Proximitor / Seismic Monitor module designed to accept signals from both eddy-current proximity probes and seismic (velocity/accelerometer) transducers within a single rack slot. It delivers simultaneous radial vibration, axial position, and casing vibration measurements — making it the preferred choice for steam turbines, gas turbines, centrifugal compressors, and large rotating equipment where multi-parameter protection is mandatory.

Complete Technical Specifications

Part Number	176449-99
Model	3500/42M
Manufacturer	Bently Nevada (Baker Hughes)
Series	3500 Machinery Protection System
Module Type	Dual-Channel Proximitor / Seismic Monitor
Input Channels	2 (configurable per channel: proximity or seismic)
Transducer Compatibility	Bently Nevada 3300 XL / 7200 Series proximity probes; velocity & accelerometer seismic sensors
Measurement Parameters	Radial vibration (µm / mil pk-pk), axial position (µm / mil), casing vibration (mm/s or g)
Alert / Danger Setpoints	Independently configurable per channel via System 1 / TDIXnet software
Output	4–20 mA analog, relay contacts (OK / Alert / Danger)
Communication	3500 Rack backplane (TDI bus); optional Modbus / Ethernet gateway via 3500/92
Power Supply	Supplied via 3500 Rack (24 VDC backplane)
Operating Temperature	0 °C to +65 °C
Humidity	5–95% RH, non-condensing
Approvals	CE, FM, CSA; SIL 1 capable (system-level)
Weight	840 g (module only)
Form Factor	Single-slot 3500 Rack module

Proven Application Environments

Steam & Gas Turbines — radial shaft vibration + axial thrust position monitoring per API 670
Centrifugal Compressors — real-time rotor dynamics surveillance in LNG, refinery, and pipeline service
Large Pumps & Fans — casing seismic monitoring for bearing-fault early warning
Hydro Turbines — combined proximity and seismic measurement in a single rack slot
Marine Propulsion Systems — vibration protection for main engines and gearboxes
Power Generation (Nuclear / Fossil) — continuous online protection meeting IEC 61511 requirements

Engineering Advantages

Dual-input flexibility — one module handles both proximity and seismic transducers, reducing rack slots and wiring cost
API 670 compliant — meets the industry standard for machinery protection systems without additional hardware
Non-interfering architecture — independent channel processing prevents cross-channel influence during fault conditions
Hot-swap capable — module can be replaced under power without shutting down the 3500 rack (with proper bypass procedure)
Software-configurable setpoints — no hardware jumpers; all parameters set via Bently Nevada System 1 or TDIXnet
Proven field reliability — 3500 Series modules have >20-year installed base in critical process industries

System Architecture & Signal Flow

The 3500/42M slots into any position within a 3500 Rack (3500/05 or 3500/05-01 chassis). Transducer signals enter via the I/O module on the rear of the rack. The 3500/42M conditions, filters, and processes each channel independently, comparing measured values against configured Alert and Danger setpoints. Relay outputs drive external shutdown logic or DCS inputs. Analog 4–20 mA outputs feed historian or DCS analog input cards. All configuration and live data are accessible via the rack’s communication gateway (3500/92 or 3500/93) using System 1 Evolution software.

Typical wiring path: Proximity probe → field junction box → I/O module (rear of rack) → 3500/42M backplane → relay / analog output terminals → DCS / SIS / historian.

Sourcing & Quality Verification

Every unit undergoes incoming inspection: visual, label verification, and functional power-on check
Serial number and firmware revision documented prior to shipment
Original Bently Nevada / Baker Hughes hardware — no third-party remanufacturing
Stored in ESD-safe, climate-controlled warehouse
Certificate of conformance available on request
30-day return window; 12-month warranty against manufacturing defects

Procurement Process

Submit your RFQ via konmask.com/pages/contact or email support@konmask.com
Receive a formal quotation with lead time and shipping options within 24 hours
Confirm order — we accept T/T, L/C, and major credit cards
Unit ships with full documentation (datasheet, test record, packing list)
DHL / FedEx / UPS express available; sea freight for bulk orders

Technical FAQ

Q: Is the 176449-99 revision compatible with all 3500 rack versions?
A: Yes. The 3500/42M 176449-99 is compatible with 3500/05 and 3500/05-01 racks running firmware 3.x and above. Verify rack firmware version via System 1 before installation.

Q: Can this module replace an older 3500/42 (non-M) unit?
A: The 3500/42M is the enhanced successor to the 3500/42. It is backward-compatible in the same rack slot but requires re-configuration in System 1 software due to expanded parameter sets.

Q: What is the difference between proximity and seismic input modes?
A: Proximity mode processes the DC gap and AC dynamic signal from an eddy-current probe (shaft relative vibration + position). Seismic mode processes the AC signal from a velocity or accelerometer transducer (casing absolute vibration). The 3500/42M supports both on a per-channel basis.

Q: Do you provide the I/O module and termination block?
A: We can supply the complete 3500/42M assembly including the I/O module. Please specify your transducer type and cable configuration in your RFQ.

Q: What certifications are required for hazardous-area installation?
A: The 3500 rack system carries FM and CSA approvals. For ATEX/IECEx zones, Bently Nevada Zener barriers or galvanic isolators must be used in the field wiring circuit. Contact us for zone-specific compliance documentation.