More Products From This Vendor
Bently Nevada 330850-50-05 3300 XL 25 mm Proximitor Sensor

The Bently Nevada 330850-50-05 is a 3300 XL 25 mm Proximitor sensor designed for high-range displacement monitoring. It provides a linear voltage output for large-scale industrial machinery protection systems.
Description
The Bently Nevada 330850-50-05 serves as the core signal processor for 25 mm proximity systems. This Proximitor sensor converts eddy current signals into a linear voltage output. It specifically tracks large-scale shaft displacement and axial position on heavy rotating machinery. Because it utilizes advanced circuitry, the device maintains exceptional signal stability over long distances. This makes it vital for monitoring assets with large vibration amplitudes or significant thermal expansion.
Advanced Signal Conditioning
This 3300 XL series module features a sophisticated internal design for high-resolution data acquisition. The 330850-50-05 supports a 5.0-meter system length for flexible cabinet mounting. Furthermore, the unit provides a linearized output of 0.787 V/mm (20 mV/mil) for 25 mm systems. This sensitivity allows for precise gap measurements on massive targets. The rugged housing also protects sensitive electronics from electromagnetic interference in industrial environments.
Industrial Asset Monitoring
Engineers primarily install this Proximitor on large steam turbines and heavy-duty compressors. It excels in monitoring differential expansion and thrust position on massive shafts. Additionally, the sensor integrates seamlessly with Bently Nevada 3500 protection racks. The 25 mm system provides a much wider linear range than standard 8mm sensors. This capability ensures safe operation for the most critical power generation and petrochemical assets.
Systems Integration and Safety
The 330850-50-05 ensures compliance with international industrial standards for machinery protection. Its consistent performance reduces the risk of false trips in automated safety systems. Moreover, the robust construction guarantees a long mean time between failures in hot environments. By providing real-time diagnostic data, the sensor supports proactive machinery health management. This results in decreased downtime and lower maintenance costs for plant operators.
Core Technical Specifications
| Parameter | Specification Detail |
| Model Number | 330850-50-05 |
| Sensor Series | 3300 XL 25 mm |
| System Length | 5.0 Meters (Total) |
| Mounting Type | 35mm DIN Rail or Panel Mount |
| Output Sensitivity | 0.787 V/mm (20 mV/mil) |
| Operating Temperature | -51°C to +100°C |
| Material | Polyphenylene sulfide (PPS) & Zinc |
| Signal Output | Negative Voltage (Linear) |
Operational Benefits and Reliability
- Wider linear range accommodates large target movements without losing signal accuracy.
- DIN rail mounting options allow for rapid installation inside standard electrical enclosures.
- The 3300 XL design significantly reduces the effects of temperature-induced drift.
- Removable terminal blocks simplify field wiring and hardware replacement procedures.
- Full compatibility with 3300 XL 25 mm probes ensures a reliable measurement chain.
Additional information
| Weight | 0.22 kg |
|---|---|
| Country of Origin | USA |
| Dimension | 8.8 x 3.5 x 7cm |
Recently Viewed Items

Bently Nevada 330103-00-03-10-02-CN Original Probe Sensor
$99.00Rated 0 out of 50 reviews$199.00Available: 99 Sold: 0
Emerson epro PR6423/106-0F1 Shaft Displacement Monitoring Sensor
$99.00Rated 0 out of 50 reviews$199.00Available: 99 Sold: 0
Emerson PR6424/000-101 CON031 Vibration Sensor
$99.00Rated 0 out of 50 reviews$199.00Available: 99 Sold: 0
Emerson PR6424/000-040 CON021 Eddy Current Sensor
$99.00Rated 0 out of 50 reviews$199.00Available: 99 Sold: 0
Emerson PR9268/201-000 | Epro Velocity Sensor for Turbomachinery
$99.00Rated 0 out of 50 reviews$199.00Available: 99 Sold: 0
Emerson EPRO PR9268/300-000 High-Temperature Vibration Monitoring Sensor
$99.00Rated 0 out of 50 reviews$199.00Available: 99 Sold: 0























0.0 Average Rating Rated (0 Reviews)