Bently Nevada 330881-28-06-155-03-02 Proximity Transducer – 3300 XL PROXPAC Series
When a critical rotating machine loses its shaft vibration monitoring capability, the consequences are immediate and severe: undetected rotor imbalance, bearing wear, or shaft misalignment can escalate within minutes into catastrophic machinery failure, unplanned downtime, and costly production losses. In high-stakes environments such as gas turbines, steam turbines, compressors, and pumps, the absence of a reliable proximity transducer is not merely an instrumentation gap — it is a direct threat to plant safety and operational continuity.
The Bently Nevada 330881-28-06-155-03-02 is a precision eddy-current proximity transducer from the industry-leading 3300 XL PROXPAC Series. Engineered for continuous shaft vibration, position, and eccentricity measurement, this transducer is the preferred choice of rotating machinery engineers and condition monitoring specialists worldwide. As part of Bently Nevada’s globally trusted 3300 XL platform — the de facto standard in turbomachinery protection systems — this specific model delivers the exact cable length, thread configuration, and sensitivity required for demanding OEM and retrofit installations.
Technical Specifications
- Part Number / SKU: 330881-28-06-155-03-02
- Brand: Bently Nevada (Baker Hughes)
- Series: 3300 XL PROXPAC
- Sensor Type: Eddy-Current Proximity Transducer
- Measurement: Shaft radial vibration, axial position, eccentricity
- Probe Tip Diameter: 8 mm
- Cable Length (Extension): 5.0 m (as encoded in part number)
- Overall System Length: 155 cm (probe + extension cable)
- Thread Size: M10 x 1 (metric)
- Sensitivity: 7.87 V/mm (200 mV/mil)
- Linear Range: 0.25 mm to 2.26 mm (10 to 89 mil)
- Frequency Response: 0 to 10,000 Hz
- Operating Temperature: -35°C to +177°C (-31°F to +350°F)
- Supply Voltage: -24 VDC (nominal)
- Output: -1 VDC to -21 VDC
- Target Material: AISI 4140 steel (or equivalent)
- Connector: Integral armored cable with standard Bently Nevada connector
- Approvals: Compatible with ATEX / IECEx hazardous area installations (verify with system documentation)
- Weight: Approx. 340 g
Key Features & Benefits
- PROXPAC Integrated Design: Probe, extension cable, and connector are factory-matched and calibrated as a single system, eliminating field calibration errors and ensuring measurement accuracy from day one.
- High-Frequency Response: Capable of capturing vibration data up to 10,000 Hz, making it suitable for high-speed turbomachinery and precision rotating equipment.
- Wide Temperature Range: Operates reliably in extreme industrial environments, from cryogenic cold to high-temperature turbine casings.
- Plug-and-Play Compatibility: Directly compatible with Bently Nevada 3300 XL monitoring systems, System 1 software, and standard Proximitor® signal conditioners — no additional adapters required.
- Robust Construction: Armored cable and hardened probe tip resist mechanical damage, oil, and chemical exposure in harsh plant environments.
- API 670 Compliant: Meets the requirements of API Standard 670 for machinery protection systems, the benchmark for turbomachinery instrumentation in the oil & gas and petrochemical industries.
Industry & Equipment Applications
- Oil & Gas: Gas turbines, centrifugal compressors, pipeline pumps, LNG trains
- Power Generation: Steam turbines, hydro generators, gas turbine generators
- Petrochemical & Refining: Reactor feed pumps, cracked gas compressors, process compressors
- Marine & Offshore: Propulsion turbines, offshore platform compressors
- Pulp & Paper / Mining: Large rotating mills, kiln drives, fan systems
- General Industrial: Any rotating machinery requiring continuous vibration and position monitoring per API 670 or ISO 13373
System Integration & Compatible Parts
The 330881-28-06-155-03-02 is designed to integrate seamlessly within the Bently Nevada 3300 XL ecosystem. Compatible and commonly paired components include:
- Proximitor® Sensors: 3300 XL 8mm Proximitor (e.g., 330180-X1-05)
- Monitoring Modules: 3500/40M Proximitor/Seismic Monitor, 3500/42M Proximitor/Seismic Monitor
- System Platform: Bently Nevada 3500 Machinery Protection System
- Software: System 1 Condition Monitoring & Diagnostics Software
- Junction Boxes: Standard Bently Nevada field junction boxes for multi-channel installations
When replacing or upgrading proximity transducers, always verify the complete part number to ensure cable length, thread size, and connector type match your existing installation.
Our Quality Assurance Process
At Konmask.com, every Bently Nevada component undergoes a rigorous multi-stage verification process before shipment:
- Part Number Verification: Full SKU cross-check against manufacturer documentation to confirm exact model, revision, and configuration.
- Physical Inspection: Visual and dimensional inspection of probe tip, cable integrity, connector condition, and labeling.
- Functional Testing: Where applicable, output signal and sensitivity verification using calibrated test equipment.
- Authenticity Screening: Sourced from authorized channels and verified distributors; counterfeit screening applied to all critical instrumentation.
- Secure Packaging: Anti-static, shock-resistant packaging with full traceability documentation included.
How to Order
- Submit an Inquiry: Contact us via the form on this page or email support@konmask.com with your required quantity and delivery timeline.
- Receive a Quote: Our technical sales team will respond within 24 hours with pricing, lead time, and availability confirmation.
- Order Confirmation: Upon agreement, we issue a proforma invoice and confirm your order in writing.
- Shipment & Tracking: Orders are dispatched via DHL, FedEx, or UPS Express with full tracking provided.
- After-Sales Support: Our engineering team remains available for installation guidance and technical questions post-delivery.
Why Choose Konmask.com?
- ✅ Specialized in Industrial Automation & Instrumentation: We focus exclusively on control systems, condition monitoring, and automation hardware — not general electronics.
- ✅ Global B2B Supply: Serving engineering firms, EPC contractors, plant maintenance teams, and OEMs across 50+ countries.
- ✅ Fast Response: Dedicated technical sales team with 24-hour inquiry response commitment.
- ✅ Traceability & Documentation: Full material traceability, test reports, and certificates of conformance available on request.
- ✅ Competitive Pricing: Direct sourcing relationships enable competitive pricing without compromising on authenticity.
- ✅ Secure International Shipping: Experienced in export compliance, customs documentation, and international logistics for industrial components.
Frequently Asked Questions
Q: What does the part number 330881-28-06-155-03-02 decode to?
A: The Bently Nevada part number encodes the probe configuration: 330881 is the base model (8mm PROXPAC XL probe), -28 indicates the probe length, -06 indicates the armored extension cable length (approximately 5m), -155 indicates the overall system cable length (155 cm from probe tip to connector), and -03-02 specifies the connector and termination type. Always use the complete part number when ordering to ensure exact compatibility.
Q: Is this transducer compatible with the Bently Nevada 3500 system?
A: Yes. The 330881-28-06-155-03-02 is fully compatible with the Bently Nevada 3500 Machinery Protection System when used with the appropriate 3300 XL Proximitor sensor. Verify the Proximitor model matches the probe series for correct calibration.
Q: Can this proximity transducer be used in hazardous (Ex) areas?
A: The 3300 XL PROXPAC series is designed for use in hazardous area installations. Verify the specific approval certificates (ATEX, IECEx, FM) applicable to your installation with the product documentation or contact our technical team.
Q: What is the lead time for the 330881-28-06-155-03-02?
A: Lead time varies based on current stock levels. Please submit an inquiry for real-time availability. We maintain stock of common Bently Nevada 3300 XL transducers and can often ship within 3–7 business days.
Q: Do you provide a warranty on this product?
A: Yes. All products supplied by Konmask.com are covered by our standard warranty against defects in materials and workmanship. Warranty terms are provided with each order confirmation.
Q: Can you supply other Bently Nevada 330881 series variants?
A: Yes. We supply a wide range of Bently Nevada 3300 XL PROXPAC transducers in various cable lengths and configurations. Contact us with your specific part number requirements.
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