Description
The Bently Nevada 330103-00-22-50-12-RU is an 8 mm proximity transducer probe from the 3300 XL product line, engineered for continuous vibration and radial displacement monitoring on critical turbomachinery such as steam turbines, gas turbines, compressors, and large electric generators.
In field deployments, this probe operates on eddy-current principles to measure the relative distance between the probe tip and a conductive target shaft. It complies with American Petroleum Institute (API) 670 standards for linear range, accuracy, and thermal stability in heavy industrial environments.
Technical Specifications
| Parameter | Value |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Product Series | 3300 XL 8 mm |
| Model / Part Number | 330103-00-22-50-12-RU |
| Probe Tip Diameter | 8 mm |
| Thread Size | M10 x 1 |
| Unthreaded Length Option (-00) | 0 mm |
| Overall Case Length Option (-22) | 220 mm |
| Total Cable Length Option (-50) | 5.0 meters (16.4 feet) |
| Connector and Cable Type (-12) | Miniature coaxial ClickLoc connectors with FluidLoc cable |
| Agency Approvals (-RU) | CSA, ATEX, IECEx hazardous area certifications |
| Linear Range | 2.0 mm (80 mils), starting approximately 0.25 mm (10 mils) from the tip |
| Enclosure Protection | IP66 / IP67 (sensor tip and cable assembly when properly sealed) |
| Operating Temperature | −51 to +177 °C (transducer tip) |
Procurement and Availability
- Condition: New Surplus / Factory Sealed / Refurbished Tested options available upon request.
- Lead Time: 1 to 3 business days for stock items; verify factory availability for specific hazardous area configurations or bulk orders.
- Warranty: 12-month standard warranty from date of shipment.
- Price: Indicative market pricing applies. Price subject to market conditions; contact us for a firm quote.
Integration and Compatibility Notes
The 330103 probe requires a matched 3300 XL Proximitor Sensor and extension cable to form a complete calibrated transducer system.
- Component Interchangeability: The 3300 XL system supports complete interchangeability of probes, extension cables, and Proximitor sensors without requiring component-level bench calibration. Ensure system components match the designated system length (5.0 meters total).
- Target Material Calibration: Standard factory calibrations are based on AISI 4140 steel shafts. Verify scale factor adjustments if your machinery utilizes alternative shaft metallurgies, such as stainless steel or chrome plating.
- Mechanical Installation: Do not exceed 9.9 N·m (88 in·lb) of tightening torque on the M10 x 1 mounting threads to prevent structural damage to the probe case. Maintain proper minimum bend radii for the coaxial cable during routing.
Frequently Asked Questions
Q: Can this probe be used interchangeably with older non-XL 3300 series components? A: While 3300 XL components are physically and electrically interchangeable with older 3300 5 mm and 8 mm systems, mixing XL and non-XL components can alter system length calibration. Verify loop resistance and output voltage tolerances before final commissioning.
Q: What do the suffix codes “-50” and “-12” designate in the part number? A: The “-50” designates a total cable length of 5.0 meters, and the “-12” specifies miniature coaxial ClickLoc connectors combined with FluidLoc cable, which prevents oil and fluid migration through the cable jacket.
Q: Is hazardous area documentation provided with the “-RU” option? A: Yes. The “-RU” suffix indicates multi-agency approvals including CSA, ATEX, and IECEx. Ensure installation strictly adheres to control drawings and local safety regulations for explosive atmospheres.
