Product Introduction
When machinery reliability is critical, the Bently Nevada 330141-08-90-11-05 3300 XL 8 mm Probe with armor delivers superior durability and precision for vibration monitoring. This probe integrates patented TipLoc and CableLoc technologies to ensure robust bonding and a cable pull strength of 330 N (75 lbf), reducing the risk of failure in harsh industrial environments. The 8 mm diameter probe tip, encapsulated in molded PPS plastic, provides enhanced physical robustness compared to smaller probes. With an optional FluidLoc cable, it prevents oil leakage through the cable interior, making it ideal for applications where liquid containment is essential.
Technical Specifications
| Parameter |
Value |
| Overall Case Length |
0.8 inches (08 option) |
| Total Cable Length |
9.0 meters (29.5 feet) (90 option) |
| Connector Type |
Miniature coaxial ClickLoc with connector protector, FluidLoc cable |
| Agency Approvals |
CSA, ATEX, IECEx (05 option) |
| Nominal Probe DC Resistance (RPROBE) at 9.0 m |
9.87 ± 0.50 Ω |
| Incremental Scale Factor (ISF) for 9 m system |
7.87 V/mm (200 mV/mil) ±6.5% |
| Deviation from Best Fit Straight Line (DSL) for 9 m system |
Less than ±0.038 mm (±1.5 mil) at 0°C to +45°C |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel (SST) |
| Probe Weight |
323 g/m (11.4 oz/m) |
| Standard Probe Temperature Range |
-52°C to +177°C (-62°F to +350°F) |
| Extended Temperature Range (Probe Tip) |
-52°C to +218°C (-62°F to +425°F) |
| Extended Temperature Range (Cable & Connector) |
-51°C to +260°C (-60°F to +500°F) |
| Pressure Seal |
Viton® O-ring; not pressure tested prior to shipment |
| Relative Humidity |
Less than 3% change in ASF at 93% RH per IEC 68-2-3 for 56 days |
Application Scenarios
The 330141-08-90-11-05 from Bently Nevada excels in monitoring vibration on large rotating machinery such as steam turbines, centrifugal compressors, and industrial pumps. Its rugged 8 mm probe tip withstands physical abuse in tight installation spaces, while the FluidLoc cable option prevents lubricant leaks in sealed bearing housings. The high Incremental Scale Factor ensures accurate displacement measurements over a linear range of 80 mils (2 mm), supporting predictive maintenance programs that reduce unplanned downtime. In extended temperature environments, the probe’s ability to operate up to +218°C at the tip makes it suitable for high-temperature gas turbine applications.
Maintenance & Reliability
Designed for long service life, the 330141-08-90-11-05 requires minimal maintenance. The stainless steel case resists corrosion, and the PPS tip provides excellent thermal and chemical resistance. Avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature failure of the pressure seal. The cable’s CableLoc design offers a pull strength of 330 N (75 lbf), reducing the risk of cable breakage during operation. Regular inspection of the connector and cable integrity is recommended, especially in high-vibration environments. The probe’s low humidity sensitivity (less than 3% ASF change in 93% RH) ensures stable readings even in humid conditions.
Selection Guide
Before purchasing, verify the required case length, total cable length, connector type, and agency certification. The 330141-08-90-11-05 configuration (0.8 inch case, 9.0 m cable, ClickLoc connector, FluidLoc cable, and CSA/ATEX/IECEx approvals) is ready for use in hazardous areas. For different requirements, consult the Bently Nevada 3300 XL series options. PLC Source PRO offers genuine Bently Nevada modules with fast shipping and competitive pricing. Ensure your system’s proximity sensor driver (e.g., 3300 XL monitor) is compatible with this 8 mm probe’s scale factor and linear range for optimal performance.