Machinery Protection Solution — Bently Nevada 3500/70M 176449-09 | 3500 Series
The Bently Nevada 3500/70M (part number 176449-09) is a dedicated velocity monitor module within the industry-standard 3500 Series Machinery Protection System. Engineered for continuous, real-time vibration and velocity measurement, this module is the preferred choice of rotating equipment engineers worldwide who demand zero-compromise protection for critical assets.
Where This Product Is Used
The 3500/70M 176449-09 is deployed across the most demanding rotating machinery environments in heavy industry:
- Steam & Gas Turbines — Continuous shaft velocity monitoring to detect imbalance, misalignment, and bearing degradation before catastrophic failure.
- Centrifugal & Axial Compressors — Real-time velocity trending in upstream oil & gas, LNG, and petrochemical compression trains.
- Pumps & Blowers — Seismic velocity measurement for large-frame pumps in power generation and water treatment facilities.
- Gearboxes & Fans — Structural vibration monitoring in paper mills, cement plants, and steel rolling mills.
- Marine Propulsion Systems — Shipboard machinery protection where vibration limits are governed by classification society rules.
- Power Generation (Nuclear & Conventional) — Safety-critical velocity monitoring in turbine-generator sets requiring SIL-rated protection.
Technical Specifications
- Part Number: 176449-09
- Module Type: Velocity Monitor
- Series: Bently Nevada 3500 Machinery Protection System
- Vendor / OEM: Bently Nevada (Baker Hughes)
- Input: Compatible with velocity transducers (seismic / geophone sensors)
- Channels: Dual-channel velocity measurement
- Measurement Range: Configurable full-scale velocity ranges per channel
- Alert / Danger Setpoints: Independently configurable via 3500 Rack Configuration Software
- Output: 4–20 mA buffered outputs; relay contact outputs for Alert and Danger
- Communication: Compatible with 3500 Rack Ethernet & Modbus RTU interfaces
- Power Supply: Supplied via 3500 Rack backplane (no external PSU required)
- Operating Temperature: 0°C to +65°C (32°F to +149°F)
- Weight: 850 g (module only)
- Approvals: CE, FM, CSA (refer to OEM datasheet for full certification matrix)
Why Engineers Specify This Model
- Drop-in Rack Compatibility — Slots directly into any 3500 Series rack without firmware conflicts or hardware adapters.
- Proven Field Reliability — Deployed in thousands of installations across oil & gas, power, and petrochemical sectors globally.
- Configurable Protection Logic — Alert and Danger setpoints, time delays, and voting logic are fully configurable via Bently Nevada’s rack software.
- Dual-Channel Architecture — Simultaneous monitoring of two velocity transducer inputs reduces module count and rack space.
- Buffered Output Signals — Enables parallel connection to DCS, SCADA, or historian systems without signal loading.
- Long Service Life — Designed for continuous 24/7 operation in harsh industrial environments.
Complete System Bill of Materials
The 3500/70M 176449-09 operates as part of a complete 3500 Series rack system. A typical BOM includes:
- 3500/15 Power Supply Module
- 3500/20 Rack Interface Module (RIM)
- 3500/70M 176449-09 (this module)
- Compatible velocity transducers (e.g., Bently Nevada 330500 or equivalent seismic sensors)
- 3500 Series I/O Terminal Block & interconnect cables
- 3500 Rack Configuration Software (RCS) — for setpoint programming
Contact Konmask.com to source complete rack assemblies or individual replacement modules.
Compliance & Industry Standards
- API 670 — Machinery Protection Systems (5th Edition): The 3500 Series is the reference platform for API 670-compliant installations.
- IEC 61511 / IEC 61508 — Functional Safety: Suitable for use in SIL-rated safety instrumented systems (consult OEM SIL documentation).
- ISO 10816 / ISO 20816 — Mechanical vibration evaluation of machines: velocity measurement per this standard.
- ATEX / IECEx — Hazardous area compliance available with appropriate barriers and installation practices.
- CE Marking — Compliant with applicable EU directives.
Quality Assurance & Sourcing
Konmask.com specializes in the procurement of industrial automation and machinery protection components for MRO, capital project, and emergency replacement requirements. Our sourcing standards for the 3500/70M 176449-09 include:
- Units inspected for physical integrity, connector condition, and label authenticity prior to listing.
- Traceability documentation available upon request (COC, test records where applicable).
- Inventory sourced from decommissioned plant upgrades, authorized distributors, and verified surplus channels.
- All modules shipped in anti-static packaging with appropriate cushioning for international freight.
- Lead time: typically 3–10 business days depending on stock availability and destination.
How to Source This Part
- Request a Quote: Email support@konmask.com with your required quantity, delivery timeline, and any documentation requirements.
- Phone / WhatsApp: +0086 19859288691 — available for urgent MRO and plant shutdown requirements.
- Online Order: Add to cart directly on this page. Our team will confirm availability and lead time within 1 business day.
- Bulk / Project Procurement: Contact us for volume pricing on multi-module rack builds or plant-wide standardization projects.
Application-Specific FAQ
Q: Is the 3500/70M 176449-09 compatible with my existing 3500 rack?
A: Yes. The 3500/70M is designed for the standard 3500 Series rack backplane. Confirm your rack firmware version with Bently Nevada RCS software to ensure full feature compatibility.
Q: Can this module replace a 3500/70 (without the M suffix)?
A: The “M” designation indicates a specific hardware revision. While physical form factor is identical, setpoint configurations and firmware behavior may differ. Verify with your site’s machinery protection engineer before substitution.
Q: What transducers are compatible with this velocity monitor?
A: The 3500/70M accepts standard velocity transducer (geophone/seismic sensor) inputs. Bently Nevada 330500-series sensors and equivalent third-party seismic sensors with matching impedance are commonly used.
Q: Do you provide calibration certificates?
A: Calibration documentation availability varies by unit. Please specify your requirement at the time of inquiry and we will advise on available documentation.
Q: Can you supply the complete 3500 rack system?
A: Yes. Konmask.com can source and configure complete 3500 Series rack assemblies. Contact us with your I/O list and machine protection requirements for a full BOM quotation.
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Original Source: https://Konmask.com
Contact: support@konmask.com | +0086 19859288691






