Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330104-00-05-20-02-CN |
| Brand | Bently Nevada |
| Origin | U.S.A. |
| Product Type | 3300 XL 8 mm Proximity Probes |
| Dimensions | Probe tip diameter: 8 mm; Overall case length: 50 mm; Total length: 2.0 m |
| Operating Temp | -51 deg C to +177 deg C |
| Power Consumption | Passive probe device; powered through connected 3300 XL Proximitor Sensor |
| Thread Type | M10 x 1 metric thread |
| Unthreaded Length | 0 mm |
| Probe Linear Range | 2.0 mm (80 mils) |
| System Output Sensitivity | 7.87 V/mm (200 mV/mil) with compatible 3300 XL Proximitor Sensor |
| Frequency Response | 0 to 10 kHz, +0 / -3 dB |
| Target Material | AISI 4140 steel recommended |
| Cable Length | 2.0 m (6.6 feet) |
| Connector Type | Miniature coaxial ClickLoc connector |
| Cable Type | Standard unarmored coaxial cable |
| Case Material | AISI 304 stainless steel |
| Probe Tip Material | PPS with TipLoc molding technology |
| Approval Option | CN country-specific approvals |
Eddy-Current Measurement and Rotor Dynamics Monitoring
The 3300 XL 8 mm Proximity Probe uses eddy-current sensing technology to convert shaft position changes into proportional electrical signals. The probe operates with a matched 3300 XL Proximitor Sensor and extension cable to maintain calibrated displacement measurement.
Furthermore, the system supports rotor dynamics analysis by measuring radial vibration, shaft position, and mechanical movement. The probe output follows the calibrated 200 mV/mil scaling relationship, which allows consistent interpretation of shaft motion signals in turbine, compressor, and rotating equipment monitoring applications.
The probe installation requires correct gap adjustment because the gap voltage directly affects measurement accuracy. Field technicians typically validate the probe gap voltage near the -10 VDC target range when commissioning the complete proximity measurement circuit.
Frequently Asked Questions
Q: Can the 330104-00-05-20-02-CN probe operate without a 3300 XL Proximitor Sensor?
A: No. The probe is a passive eddy-current sensing element and requires a compatible 3300 XL Proximitor Sensor and extension cable to generate the measurement output.
Q: What connector type is installed on this probe configuration?
A: This configuration uses a miniature coaxial ClickLoc connector with a standard unarmored cable assembly.
Q: What installation factor affects measurement accuracy most significantly?
A: Correct mechanical mounting and electrical gap adjustment affect signal accuracy. The probe gap voltage should be verified during commissioning according to the 3300 XL system calibration requirements.
Field Installation Guidelines
- Install the probe with the specified M10 x 1 metric thread engagement and maintain mechanical alignment with the monitored shaft surface.
- Verify the probe tip clearance before system commissioning to prevent physical contact with rotating components.
- Use the approved extension cable and Proximitor Sensor combination to maintain system calibration.
- Route the coaxial cable away from high-current power conductors and strong electromagnetic interference sources.
- Maintain proper cable shielding practices and connect shielding according to the monitoring system installation requirements.
- Confirm the probe gap voltage during commissioning and validate the signal output before placing the machinery protection system into service.
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