Description
Bently Nevada 330103-00-03-10-01-00
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Bently Nevada |
| Product Family | 3300 XL 8 mm Proximity Transducer System |
| Sensing Diameter | 8.0 mm (0.31 in) |
| Mounting Thread | M10 × 1 metric thread |
| Unthreaded Length | 0 mm |
| Overall Case Length | 30 mm |
| Total Cable Length | 1.0 meter (3.3 feet) |
| Connector Type | Miniature coaxial ClickLoc connector with connector protector |
| Agency Approval | No special certification required |
| Linear Range | 0.25 mm to 2.3 mm (10 to 90 mils) |
| Output Sensitivity | 7.87 V/mm (200 mV/mil) |
| Recommended Gap Setting | 1.27 mm (50 mils), producing approximately -9 Vdc |
| Output Signal Range | -1 Vdc to -17 Vdc |
| Operating Temperature | -51°C to +177°C (-60°F to +350°F) |
| Frequency Response | DC to 10 kHz |
Functional Features
- Advanced eddy-current proximity sensing
- TipLoc molding for robust probe tip attachment
- CableLoc design providing 330 N pull strength
- ClickLoc connector with built-in locking mechanism
- Complete component interchangeability within 3300 XL systems
- API 670 compliant when installed as a complete system
Application Scenarios
- Radial vibration monitoring on large rotating equipment
- Axial position measurement for thrust bearing monitoring
- Differential expansion monitoring in steam turbines
- Slow-roll and eccentricity measurement
- Machinery protection in power plants and refineries
Performance Parameters The probe delivers consistent output signals proportional to shaft displacement, enabling precise real-time monitoring. The 8 mm sensing diameter provides a thicker encapsulation of the probe coil in the molded PPS tip, resulting in a more rugged probe compared to 5 mm alternatives.
Material Composition
- Probe Tip: Polyphenylene Sulfide (PPS) molded encapsulation
- Probe Case: AISI 303 or 304 stainless steel
- Cable: FEP insulated triaxial cable, 75 Ω
- Connector: Gold-plated corrosion-resistant ClickLoc
Structural Characteristics The 30 mm case length provides a compact yet robust housing for the sensing element. The zero unthreaded length allows flush mounting. The 1.0 meter cable includes a miniature coaxial ClickLoc connector with connector protector for enhanced environmental sealing.
Working Principle The probe operates by emitting a high-frequency RF field from its coil. As a conductive target moves within the sensing field, the resulting eddy currents alter the coil impedance. This change is processed by the Proximitor sensor into a linear DC voltage output proportional to the physical gap.
Installation Requirements
- Mount perpendicular to the shaft axis
- Ensure target surface is clean AISI 4140 steel or equivalent ferromagnetic material
- Set initial gap to produce -9 Vdc to -10 Vdc output
- Use proper torque on mounting nuts to prevent loosening
- Route cable away from high-temperature sources and sharp edges
- Maintain shield continuity throughout the entire transducer system
Usage Precautions
- Requires pairing with a 3300 XL extension cable and Proximitor sensor
- The 01 connector option includes a connector protector for enhanced environmental protection
- Do not use silicone tape on connections exposed to turbine oil
- Verify system calibration after installation
- Avoid mixing XL and non-XL components as this limits system performance to non-XL specifications
