Product Overview
When vibration monitoring in harsh industrial environments demands probes that withstand extreme temperatures, humidity, and pressure differentials, the Bently Nevada 330195-02-12-50-00 3300 XL 8mm Proximity Probe, Reverse Mount delivers reliable performance. This probe is engineered with robust materials and precise electrical characteristics to ensure accurate shaft vibration and position sensing in rotating machinery such as turbines, compressors, and pumps.
Technical Specifications
| Parameter |
Value |
| Part Number |
330195-02-12-50-00 |
| Total Length |
5.0 meters (16.4 feet) |
| Thread Type |
3/8-24 UNF |
| Max Thread Engagement |
0.563 in |
| Nominal Probe DC Resistance (RPROBE) at 5.0 m |
8.73 ± 0.50 Ω |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Operating Temperature (Standard) |
-52°C to +177°C (-62°F to +350°F) |
| Extended Temperature (Tip) |
-52°C to +218°C (-62°F to +425°F) |
| Extended Temperature (Cable/Connector) |
-51°C to +260°C (-60°F to +500°F) |
| Humidity Tolerance |
<3% change in ASF after 56 days at 93% RH (IEC 68-2-3) |
| Pressure Seal |
Viton O-ring; not pressure tested before shipment |
Industry Applications
The Bently Nevada 330195-02-12-50-00 proximity probe excels in applications where high-temperature tolerance and resistance to condensing humidity are critical. Typical use cases include monitoring shaft vibration and thrust position in gas turbines, steam turbines, centrifugal compressors, and large pumps. The probe's wide temperature range and robust stainless steel construction make it suitable for outdoor or high-heat zones in power generation and oil & gas facilities.
Installation & Setup Guidance
This 5-meter probe is designed for use exclusively with the 5-meter Proximitor sensor. Ensure the thread engagement does not exceed 0.563 inches (3/8-24 UNF) to avoid mechanical interference. Although the probe is not pressure tested before shipment, the Viton O-ring provides a differential pressure seal. For applications requiring verified pressure integrity, consult the custom design department. Avoid exposing the probe to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal.
Maintenance & Reliability
Regular inspection of the probe tip and cable for physical damage is recommended. Monitor for any changes in average scale factor, especially after prolonged exposure to high humidity (the probe is tested for <3% ASF change under 93% RH for 56 days). To maintain reliability, keep the probe within its specified temperature ranges and avoid thermal cycling below -30°F where the seal may degrade.
Selection Guide & Purchasing Advice
When ordering the Bently Nevada 330195-02-12-50-00, verify the total length option (50 = 5.0 meters) and the thread type (3/8-24 UNF). The agency approval option 00 indicates no certification is required for most standard installations. For genuine parts and expert support, choose PLC Source PRO as your trusted supplier for industrial automation spares.