Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330102-40-62-05-02-05 |
| Brand | Bently Nevada |
| Product Type | 3300 XL 8 mm Proximity Probe |
| Origin | USA |
| Dimensions | 3/8-24 UNF threaded probe, 6.2 inch overall case length |
| Operating Temp | -51 deg C to +177 deg C |
| Power Consumption | Passive probe, powered by compatible 3300 XL Proximitor Sensor |
| Probe Type | Eddy-current proximity probe with armored construction |
| Probe Tip Diameter | 8.0 mm |
| Unthreaded Length | 4.0 inches |
| Total Length | 0.5 meter (1.6 feet) |
| Connector Type | Miniature coaxial ClickLoc connector |
| Cable Type | Standard coaxial cable |
| Armor Type | Flexible stainless steel armor |
| Linear Measurement Range | 2.0 mm (80 mils) |
| System Scale Factor | 7.87 V/mm (200 mV/mil) with 3300 XL Proximitor Sensor |
| Frequency Response | 0 Hz DC to 10 kHz (+0, -3 dB) |
| Target Material | AISI 4140 steel calibration target |
| Pressure Rating | Up to 7 bar (100 psi) sealed probe tip |
Eddy-Current Measurement and Rotor Dynamics
The 3300 XL 8 mm Proximity Probe uses an electromagnetic field generated at the probe tip to measure the distance between the probe and conductive rotating components. Therefore, the system converts shaft movement into proportional voltage output through eddy-current probe scaling.
The probe operates with a 3300 XL Proximitor Sensor to provide gap voltage measurement and displacement monitoring. During installation, technicians validate the operating gap by checking the output voltage, with approximately -10 VDC used as a typical target value for proper probe positioning.
In addition, the probe supports rotor dynamics analysis by providing displacement signals required for vibration monitoring, axial position measurement, and shaft motion evaluation. The armored design improves mechanical protection in installations where the probe cable faces movement or external contact risks.
Frequently Asked Questions
Q: Does the 330102-40-62-05-02-05 operate independently without a Proximitor Sensor?
A: No. The probe requires a compatible 3300 XL Proximitor Sensor to provide excitation, signal conditioning, and displacement output.
Q: What gap voltage should technicians verify during installation?
A: Technicians typically verify the probe operating position by checking the gap voltage output. A target value around -10 VDC is commonly used for Bently Nevada eddy-current systems.
Q: Can this probe measure both vibration and shaft position?
A: Yes. The probe detects dynamic and static shaft displacement, allowing use in vibration monitoring, axial position measurement, and rotor movement analysis.
Field Installation Guidelines
- Install the probe into the machine housing using the specified 3/8-24 UNF mounting thread.
- Maintain correct probe-to-target clearance before system calibration.
- Connect the miniature coaxial ClickLoc connector securely to prevent signal interruption.
- Route probe cables away from high-current power conductors to reduce electromagnetic interference.
- Connect cable shielding according to the monitoring system grounding practice.
- Verify the gap voltage output before placing the rotating equipment into service.
- Confirm that the target surface material matches the calibrated AISI 4140 steel reference condition.
Reviews
There are no reviews yet.