Product Introduction
The Bently Nevada 330881-28-04-150-00-02 PROXPAC XL Proximity Transducer is an integrated proximity sensing solution designed for precise, long-term monitoring of shaft vibration and shaft position in critical rotating machinery. As part of the PROXPAC XL family, this unit combines the proximity probe, extension cable, and Proximitor® sensor into a single compact assembly.
This integrated architecture significantly reduces installation complexity, minimizes wiring interfaces, and improves overall system reliability. The device is well suited for both new installations and retrofit projects where space constraints, commissioning time, and measurement stability are key considerations. It delivers the proven performance expected from Bently Nevada proximity measurement technology in demanding industrial environments.
Product Specifications
| Parameter |
Description |
| Product Type |
Integrated Proximity Transducer |
| Series |
PROXPAC XL |
| Model Number |
330881-28-04-150-00-02 |
| Measurement Technology |
Eddy current, non-contact |
| Measured Parameters |
Shaft vibration, shaft position |
| Integrated Components |
Probe, extension cable, Proximitor sensor |
| System Compatibility |
Bently Nevada 3300 / 3300 XL systems |
| Output Signal Type |
Standard proximity transducer output |
| Mounting Method |
Direct machine mounting |
| Design Duty |
Continuous industrial operation |
| Enclosure Type |
Rugged industrial housing |
| Dimensions |
91.4 × 144.8 mm |
| Weight |
1.44 kg |
Applications
• Steam and Gas Turbines – Continuous monitoring of shaft vibration and axial position
• Centrifugal and Axial Compressors – Detection of shaft displacement and dynamic movement
• Industrial Pumps – Early identification of mechanical instability and wear
• Large Electric Motors – Support for condition-based maintenance strategies
• Gearboxes – Monitoring shaft behavior related to misalignment or load variation
• Oil & Gas Rotating Equipment – Reliable performance in harsh operating conditions
Advantages
• Integrated All-in-One Construction – Eliminates separate probe, cable, and sensor installation
• Reduced Installation Time – Simplifies wiring and commissioning activities
• Space-Saving Design – Ideal for compact machinery and limited mounting locations
• Non-Contact Measurement – No mechanical wear, ensuring long-term signal stability
• High Measurement Accuracy – Maintains consistent performance over extended operation
• Industrial Reliability – Designed for continuous use in critical machinery systems
FAQ
1. What is the primary purpose of this PROXPAC XL transducer?
It provides non-contact measurement of shaft vibration and shaft position in rotating machinery.
2. How does this model differ from traditional proximity probe systems?
It integrates the probe, extension cable, and Proximitor sensor into one factory-assembled unit.
3. Is this transducer suitable for continuous monitoring applications?
Yes, it is designed for continuous-duty operation in critical industrial equipment.
4. Can this unit be used for machinery retrofit projects?
Yes, the integrated design makes it especially suitable for retrofits and upgrades.
5. What sensing technology does the PROXPAC XL use?
It uses eddy current technology for precise, non-contact shaft measurement.
6. How does the integrated design improve reliability?
By reducing connection points, it lowers the risk of wiring faults and signal degradation.
7. Is it compatible with existing Bently Nevada monitoring platforms?
Yes, it works seamlessly with Bently Nevada 3300 and 3300 XL systems.
8. Can it monitor both vibration and position signals?
Yes, it supports both functions depending on system configuration and application needs.
9. Is the device suitable for harsh industrial environments?
Yes, it is built with a rugged enclosure for stable performance in demanding conditions.
10. What mechanical issues can this transducer help detect?
It assists in identifying imbalance, misalignment, shaft rubs, and abnormal shaft movement.
Related Models
| Model |
Description |
| 330881-01-00-000-00-02 |
PROXPAC XL integrated proximity transducer |
| 330881-28-00-55-03-00 |
PROXPAC XL proximity transducer |
| 330880-XX-XX |
PROXPAC XL series transducers |
| 330710-000-050-50-02-00 |
3300 XL 11 mm proximity probe |
| 330851-02-000-030-50-00-00 |
3300 XL 25 mm proximity probe |
| 330780-50-00 |
Proximitor sensor |
Popular Models
| Model |
Product Type |
Typical Application |
| 330881-28-04-150-00-02 |
PROXPAC XL |
Integrated shaft monitoring |
| 330881-28-00-55-03-00 |
PROXPAC XL |
Compact proximity measurement |
| 330710-000-050-50-02-00 |
Proximity Probe |
Standard vibration monitoring |
| 330851-02-000-030-50-00-00 |
Proximity Probe |
Large shaft displacement |
| 3500/42M |
Vibration Monitor |
Machinery protection systems |
| 3500/22M |
TDI Module |
Monitoring system interface |
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