Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330195-02-12-05-00 |
| Brand | Bently Nevada |
| Product Type | 3300 XL 8 mm Proximity Probes, Reverse Mount |
| Origin | USA |
| Power Consumption | Passive probe design; powered through compatible Proximitor Sensor |
| Probe Diameter | 8 mm |
| Mounting Type | Reverse Mount |
| Thread Type | 3/8-24 UNF |
| Total Length Option | 0.5 metre (1.6 feet) |
| Agency Approval | Not required |
| Probe Sealing Material | Viton O-ring |
| Pressure Sealing Function | Designed to seal differential pressure between probe tip and case |
| Technology | Eddy-current displacement sensing |
Eddy-Current Probe Scaling and Rotor Dynamics Measurement
The 330195-02-12-05-00 uses eddy-current probe scaling principles to convert shaft displacement into an electrical measurement signal through the Proximitor Sensor system. Moreover, the reverse mount mechanical design allows installation configurations where standard mounting access is limited.
The probe structure supports rotor dynamics monitoring by providing a proportional response between the probe tip and the observed shaft surface. Therefore, accurate mechanical installation, correct gap adjustment, and proper signal calibration directly affect vibration and displacement measurement performance.
Bently Nevada proximity probe systems typically validate operating gap conditions through gap voltage measurement, with a standard target near -10 VDC for compatible 3300 XL systems. In addition, the probe construction incorporates design considerations for signal stability and cross-talk suppression when installed with multiple proximity channels.
Frequently Asked Questions
Q: What sensing technology does the 330195-02-12-05-00 use?
A: The probe uses eddy-current sensing technology and operates with a compatible Bently Nevada Proximitor Sensor to measure shaft displacement.
Q: Does the probe include pressure testing before shipment?
A: No. The probe sealing system uses a Viton O-ring to seal differential pressure between the probe tip and case, but pressure testing is not performed before shipment.
Q: What mounting thread does this reverse mount probe use?
A: The 330195-02-12-05-00 uses a 3/8-24 UNF thread configuration for mechanical installation.
Field Installation Guidelines
- Install the probe with the specified 3/8-24 UNF mounting interface and maintain correct mechanical alignment with the target shaft surface.
- Verify probe gap voltage after installation through the connected Proximitor Sensor before commissioning the monitoring channel.
- Keep probe cabling separated from high-voltage power wiring to reduce electrical interference.
- Apply proper cable shielding and grounding practices according to the monitoring system installation requirements.
- Inspect the Viton O-ring sealing condition before installation when the application requires differential pressure sealing.
- Avoid mechanical impact on the probe tip because the sensing surface directly affects eddy-current measurement accuracy.
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