Bently Nevada 3500/45 176449-04 Position Monitor Module

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Product Description

The Bently Nevada 3500/45 Position Monitor (176449-04) is a versatile 4-channel monitoring module designed for the 3500 Machinery Protection System rack. It continuously measures and monitors axial position-related parameters critical to the safe operation of large rotating machinery, including:

• Differential Expansion — the difference in thermal expansion between the rotor and casing of large steam turbines
• Axial (Thrust) Position — rotor movement relative to the thrust bearing
• Shaft Eccentricity — bow or bend condition of the shaft, especially critical during turbine start-up
• Screw Compressor Rotor Position — axial and radial position monitoring for screw-type compressors

When measured parameters exceed configured alarm or danger setpoints, the module activates alarm outputs that can trigger relays for machinery shutdown — protecting high-value turbomachinery from catastrophic failure caused by excessive axial movement or thermal distortion.

The 3500/45 is a trusted solution in power generation, oil & gas, petrochemical, and heavy industrial plants worldwide, where accurate position monitoring is essential for turbine safety and reliability programs.

Key Features

• 4-channel monitor — one module supports multiple position measurement functions
• Multi-parameter capable — differential expansion, axial position, eccentricity, and screw compressor monitoring in a single platform
• Programmable alarms — 2 Alert and 2 Danger alarm setpoints per channel with configurable time delays
• Dual alarm architecture — independent Alert and Danger logic for flexible protection strategies
• LED front panel status — OK, Alarm/Danger, Bypass, and Config Fault indicators for at-a-glance diagnostics
• Hot-swappable design — module replacement without powering down the 3500 rack
• Proximity probe compatibility — works with 3300 XL and 7200 series transducer systems
• Software configuration — easily configured via 3500 Rack Configuration Software

Technical Specifications

⚠️ *Specifications may vary depending on I/O module type and firmware version. Contact our team to confirm compatibility with your rack configuration.*

Applications

• Large steam turbine differential expansion monitoring in power plants
• Gas turbine and compressor thrust position protection in LNG and petrochemical facilities
• Shaft eccentricity monitoring during turbine run-up and coast-down
• Screw compressor rotor position monitoring in gas processing plants
• Critical turbomachinery protection in refineries and heavy industrial installations

Why Buy From Us?

• ✅ In stock — large inventory of 3500 series modules for same-day dispatch
• ✅ 12-month warranty on every module
• ✅ Tested & verified — each unit inspected before shipment
• ✅ Global shipping — DHL / FedEx / UPS express delivery
• ✅ Technical support — experienced engineers available for configuration and troubleshooting
• ✅ Competitive pricing — contact us for volume discounts and project packages

3500/45 176449-04

Frequently Asked Questions (FAQ)

Q1: What is the difference between 3500/45 and 3500/46M?
A: The 3500/45 is a dedicated position monitor (differential expansion, thrust position, eccentricity), while the 3500/46M is an Event Detection Sequence module focused on radial vibration event capture. Both are used together in comprehensive turbine protection racks.

Q2: How many channels does the 3500/45 have?
A: The 3500/45 provides 4 monitoring channels. Each channel can be configured for a specific position measurement function depending on your application.

Q3: Which transducers are compatible with the 3500/45?
A: The module is compatible with Bently Nevada 3300 XL and 7200 series proximity probe systems, including the associated Proximitor* sensors and extension cables.

Q4: Is the 3500/45 hot-swappable?
A: Yes. The module can be replaced while the rack remains powered, following proper safety procedures.

Q5: What is the lead time and warranty?
A: In-stock items typically ship within 24–48 hours. All modules come with a 12-month warranty.

Request a Quote

Need the Bently Nevada 3500/45 176449-04 for your machinery protection system? Contact us today for pricing, availability, and technical documentation.

BENTLY BRAND

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