Product Overview
The Bently Nevada 330194-15-25-50-05 is a high-performance 8 mm proximity probe designed for critical rotating machinery protection. Part of the 3300 XL series, this probe incorporates patented TipLoc and CableLoc technologies to address common failure modes such as probe tip detachment and cable pull-out. With a total length of 5.0 meters and armored construction, the 330194-15-25-50-05 is engineered for reliable operation in harsh industrial environments.
Failure Mode Prevention
Traditional proximity probes often experience failures due to mechanical stress at the probe tip or cable connections. The Bently Nevada 330194-15-25-50-05 features a patented TipLoc molding method that creates a robust bond between the probe tip and body, preventing separation. The CableLoc design provides 330 N (75 lbf) pull strength, ensuring the cable stays securely attached even under high tension. Additionally, an optional FluidLoc cable option prevents oil and liquid ingress through the cable interior, reducing contamination-related faults.
Technical Specifications
| Parameter |
Value |
| Model |
330194-15-25-50-05 (3300 XL 8 mm Probe) |
| Thread |
M10 x 1 |
| Unthreaded Length |
150 mm |
| Case Length |
250 mm |
| Total Cable Length |
5.0 meters (16.4 feet) |
| Agency Approvals |
CSA, ATEX, IECEx |
| Power Supply |
-17.5 Vdc to -26 Vdc (nonincendive), -23 Vdc to -26 Vdc (with barriers) |
| Maximum Current |
12 mA |
| Supply Sensitivity |
Less than 2 mV change per volt change |
| Output Resistance |
50 Ω |
| Probe DC Resistance (RPROBE) at 5 m |
8.73 ± 0.50 Ω |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Cable Type |
75 Ω triaxial, FEP or PFA insulated |
| Tensile Strength (Cable to Case) |
330 N (75 lbf) |
| Connector Material |
Gold-plated brass or beryllium copper |
| Max Connector Torque |
0.565 N·m (5 in·lbf) |
| Thread Engagement Max |
15 mm |
| Weight |
323 g/m (11.4 oz/m) |
| Temperature Range (Probe only) |
-55°C to +232°C (T1) |
Industry Applications
The Bently Nevada 330194-15-25-50-05 is widely used in turbomachinery, compressors, pumps, and motors for measuring shaft vibration and position. In petrochemical plants, the FluidLoc option prevents process fluid leaks. Power generation facilities benefit from its rugged construction in high-vibration areas. The 5-meter cable length allows flexible installation away from machinery.
Installation & Setup Guidance
When installing the 330194-15-25-50-05, ensure the mounting hole has an M10 x 1 thread and that thread engagement does not exceed 15 mm. Use the supplied Viton O-ring for sealing between probe tip and case. Do not over-torque the connector; apply a maximum of 0.565 N·m. For nonincendive circuits, connect per drawing 140979. The 5-meter length is designed specifically for use with the 5-meter Proximitor sensor; do not pair with other lengths.
Maintenance & Reliability
Regularly inspect the probe cable and connectors for damage. The TipLoc and CableLoc designs significantly reduce the need for frequent replacement. In aggressive environments, use the FluidLoc option to prevent oil ingress. Periodic calibration checks ensure measurement accuracy. The probe's PPS tip and stainless steel case resist chemical attack, prolonging service life.
Selection Guide & Purchasing Advice
When ordering, verify that the 330194-15-25-50-05 matches your shaft diameter and clearance requirements. This probe includes armor and all agency approvals. For custom lengths or FluidLoc options, contact your supplier. PLC Source PRO offers this Bently Nevada 330194-15-25-50-05 in new, factory-sealed packaging with full warranty. Ensure compatibility with your data acquisition system.