Bently Nevada 330901-00-32-05-02-05 Velomitor Vibration Transmitter – 3300 Series Machinery Protection System
When a critical rotating machine — a high-speed compressor, a steam turbine, or a large pump — loses its vibration monitoring signal, the consequences are immediate and severe. Without accurate, real-time velocity data, plant operators are flying blind. Bearing failures go undetected, rotor imbalance escalates unchecked, and what begins as a minor mechanical anomaly can cascade into catastrophic equipment damage, unplanned downtime, and significant safety risk. The Bently Nevada 330901-00-32-05-02-05 Velomitor Vibration Transmitter exists precisely to prevent this scenario — delivering continuous, reliable vibration velocity measurement that keeps your machinery protection system fully informed at all times.
Within the Bently Nevada 3300 Series platform — the industry’s most widely deployed machinery protection architecture — the 330901-00-32-05-02-05 occupies a specialized and critical role. Unlike traditional eddy-current proximity probes that measure relative shaft displacement, the Velomitor transducer measures absolute casing velocity, making it the preferred solution for high-frequency vibration detection on machines where casing motion is the primary diagnostic indicator. Trusted by petrochemical plants, power generation facilities, and heavy industrial operations across six continents, this transmitter represents the gold standard in velocity-based condition monitoring.
Technical Specifications
- Model / Part Number: 330901-00-32-05-02-05
- Brand: Bently Nevada (Baker Hughes)
- Series: 3300 Series Machinery Protection System
- Transducer Type: Velomitor — Piezoelectric Velocity Transducer
- Measurement Parameter: Absolute Casing Vibration Velocity
- Output Signal: 4–20 mA (velocity proportional)
- Frequency Range: 2 Hz – 1,000 Hz (–3 dB points)
- Full-Scale Range: 0–50 mm/s RMS (configurable per system)
- Supply Voltage: 18–30 VDC (loop-powered)
- Operating Temperature: –40°C to +121°C (–40°F to +250°F)
- Connector Type: 2-pin MIL-C-5015 style
- Housing Material: Stainless Steel
- Ingress Protection: IP67
- Mounting: 1/4-28 UNF threaded stud
- Weight: Approx. 450 g (with cable)
- Compliance: CE, ATEX (consult datasheet for zone classification)
Note: All specifications are based on published Bently Nevada documentation. Verify against the official datasheet for your specific application requirements.
Key Features & Benefits
- Absolute Velocity Measurement: Captures true casing motion independent of shaft position — ideal for machines with fluid-film bearings where relative displacement probes alone are insufficient.
- Wide Frequency Response: 2–1,000 Hz bandwidth covers both low-speed machinery and high-frequency bearing defect frequencies in a single sensor.
- 4–20 mA Loop-Powered Output: Industry-standard signal format ensures direct compatibility with DCS, PLC, and safety instrumented systems (SIS) without additional signal conditioning.
- Rugged Stainless Steel Housing: IP67-rated enclosure withstands harsh industrial environments including oil mist, washdown, and extreme temperature cycling.
- Drop-In 3300 Series Compatibility: Designed as a native component of the Bently Nevada 3300 ecosystem — no adapter modules or reconfiguration required when replacing existing Velomitor units.
- Long Service Life: Solid-state piezoelectric sensing element with no moving parts ensures decades of reliable operation with minimal maintenance.
Industry & Equipment Applications
- Oil & Gas: Centrifugal compressors, gas turbines, pipeline pumping stations, LNG liquefaction trains
- Power Generation: Steam turbines, gas turbines, boiler feed pumps, cooling tower fans
- Petrochemical & Refining: Reactor charge pumps, air separation units, cracked gas compressors
- Pulp & Paper: High-speed rolls, refiners, induced draft fans
- Marine & Offshore: Propulsion turbines, auxiliary machinery on FPSOs and drilling rigs
- General Heavy Industry: Any rotating equipment where casing vibration monitoring is specified by API 670 or equivalent standards
System Integration & Compatible Parts
The 330901-00-32-05-02-05 is designed for seamless integration within the Bently Nevada 3300 Series architecture. Typical system configurations include:
- Monitor Modules: 3300/16 Dual Velocity Monitor, 3300/20 Dual Velocity/Thrust Monitor
- I/O Modules: 3300/93 Transient Data Interface (TDI)
- Extension Cables: Bently Nevada 330130 series armored extension cables
- Junction Boxes: 3300/55 Field Junction Box for multi-channel installations
- System Platform: Compatible with System 1 Evolution software for online trending and diagnostics
When sourcing replacement or spare parts, always cross-reference the full part number (330901-00-32-05-02-05) to ensure correct connector, cable length, and sensitivity configuration.
Our Quality Assurance Process
At Konmask.com, every Bently Nevada component undergoes a rigorous multi-stage verification process before shipment:
- Source Verification: Units are sourced exclusively from authorized distributors, certified surplus channels, or directly from OEM-approved supply chains.
- Visual & Physical Inspection: Each unit is inspected for housing integrity, connector condition, label authenticity, and date code consistency.
- Functional Testing: Where applicable, transmitters are bench-tested for output signal continuity and basic electrical parameters.
- Documentation Package: Shipments include available test certificates, calibration records, and traceability documentation upon request.
- Secure Packaging: Anti-static packaging with foam cushioning and moisture barrier bags protect sensitive electronics during international transit.
How to Order
- Submit your inquiry via the Contact / RFQ form on this page or email [email protected]
- Provide your required quantity, delivery timeline, and destination country
- Our technical team will confirm availability, lead time, and issue a formal quotation within 24 business hours
- Upon PO confirmation, we arrange export documentation, customs clearance support, and your preferred shipping method (DHL / FedEx / sea freight)
- Track your shipment with real-time updates until delivery
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation & Condition Monitoring Hardware — Bently Nevada, Emerson, GE, ABB, Siemens, and more
- ✅ Global Export Experience — Serving engineering teams in 40+ countries with compliant export documentation
- ✅ Technical Pre-Sales Support — Our engineers help you confirm compatibility before you commit to a purchase
- ✅ Competitive Lead Times — In-stock items ship within 3–5 business days; sourced items within 2–4 weeks
- ✅ Flexible MOQ — Single-unit orders accepted; volume pricing available for project quantities
- ✅ Secure Payment & Trade Terms — T/T, L/C, and escrow options available for international buyers
Frequently Asked Questions
Q: What is the difference between the Bently Nevada Velomitor and a standard accelerometer?
A: The Velomitor is a piezoelectric velocity transducer that outputs a 4–20 mA signal proportional to vibration velocity (mm/s or in/s). A standard accelerometer outputs a charge or voltage proportional to acceleration (g). The Velomitor’s integrated electronics and current-loop output make it directly compatible with 3300 Series monitors without additional signal conditioning, whereas accelerometers typically require charge amplifiers or IEPE power supplies.
Q: Can the 330901-00-32-05-02-05 replace other Velomitor models in the 3300 Series?
A: Compatibility depends on the specific suffix codes, which define connector type, cable length, and sensitivity. Always verify the full part number against your existing system documentation or consult our technical team before substituting models.
Q: Do you provide calibration certificates with this transmitter?
A: We provide available documentation from the supply chain. For applications requiring traceable calibration to NIST or equivalent standards, we recommend engaging a certified metrology laboratory after receipt. We can recommend accredited partners upon request.
Q: What is the typical lead time for the 330901-00-32-05-02-05?
A: Lead time varies by current stock status. Please submit an RFQ for a real-time availability check. In-stock units typically ship within 3–5 business days from our warehouse.
Q: Is this product suitable for use in hazardous (Ex) areas?
A: The 330901-00-32-05-02-05 may carry ATEX/IECEx certification depending on the specific configuration. Please confirm the Ex rating from the product label and official Bently Nevada datasheet before installation in classified hazardous locations.
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