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Product Overview
The Bently Nevada 330105-02-12-20-02-00 is a reverse mount proximity probe from the 3300 XL 8 mm series. It forms part of a proximity transducer system designed to monitor vibration and position in fluid-film bearing machines. It connects with a matching extension cable and Proximitor sensor to provide precise, linear output proportional to the gap between the probe and shaft surface.
Applications
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Radial vibration monitoring
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Axial thrust position measurements
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Keyphasor reference signal generation
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Turbine, compressor, and motor shaft monitoring
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Overspeed protection (with restrictions)
Key Advantages
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Reverse mount capability for limited space installations
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Rugged PPS molded probe tip and 303/304 stainless steel body
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ClickLoc gold-plated connectors prevent loosening
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Interchangeability with other XL and non-XL 3300 series components
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Optional FluidLoc cable for leak prevention
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Suitable for high-density DIN or panel mount installations
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Complies with API 670 standard
Technical Specifications
| Parameter | Specification |
|---|---|
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Body Material | AISI 303/304 Stainless Steel |
| Mounting Thread | 3/8-24 UNF |
| Total Length | 2.0 meters |
| Weight | 0.646 kg |
| Cable Type | 75Ω triaxial, FEP insulated |
| Connector Type | Miniature coaxial ClickLoc |
| Maximum Case Torque | 22.6 N·m (200 in·lbf) |
| Recommended Case Torque | 7.5 N·m (66 in·lbf) |
| Temperature Range (Probe) | -52°C to +177°C |
| Temperature Range (Cable) | -52°C to +177°C |
| Linear Range | 2 mm (80 mils) |
| Output Sensitivity | 200 mV/mil ±5% |
| Minimum Target Size | Ø 15.2 mm |
| Frequency Response | 0–10 kHz, ±3 dB |
| Compatibility | Works with 3300 XL Proximitor Sensor |
FAQs
Q1: What is the primary use of this probe?
A1: It’s mainly used for monitoring vibration and shaft position in rotating machinery with reverse mount constraints.
Q2: Can it be used with older 3300 systems?
A2: Yes, it is backward compatible with non-XL 3300 8 mm and 5 mm systems.
Q3: Is it suitable for high-temperature environments?
A3: Yes, the standard version supports up to +177°C. For higher temperatures, an Extended Temperature Range (ETR) version is available.
Q4: What mounting thread is used on this model?
A4: This version uses a 3/8-24 UNF mounting thread.
Q5: Does it come with armor protection?
A5: Armor is not available on reverse-mount probes like this model.
Q6: Is a special tool required to tighten the connector?
A6: No, ClickLoc connectors are finger-tightened and provide a positive lock when clicked.
Q7: Can I use this probe in hazardous environments?
A7: Yes, it has CSA, ATEX, and IECEx certifications for hazardous locations.
Q8: How does the FluidLoc cable help?
A8: It prevents oil and other fluids from leaking through the cable in sealed machine applications.
Q9: What is the total system weight?
A9: This model weighs approximately 0.646 kg for the 2-meter configuration.
Q10: What is the probe’s output sensitivity?
A10: 200 mV/mil with ±5% accuracy over its linear range.
Related Models (Same Series)
| Model | Description | Thread | Length | Cable Type | Weight |
|---|---|---|---|---|---|
| 330105-02-12-10-02-00 | Reverse Mount Probe | 3/8-24 UNF | 1.0 m | Standard | 0.5 kg |
| 330105-02-12-15-02-00 | Reverse Mount Probe | 3/8-24 UNF | 1.5 m | Standard | 0.6 kg |
| 330106-05-30-20-02-00 | Reverse Mount Probe | M10 x 1 | 2.0 m | Standard | 0.646 kg |
| 330195-02-12-20-02-00 | Reverse Mount ETR Probe | 3/8-24 UNF | 2.0 m | ETR | 0.65 kg |
| 330196-05-30-15-02-00 | Reverse Mount ETR Probe | M10 x 1 | 1.5 m | ETR | 0.63 kg |
| 330101-00-20-10-02-00 | Forward Mount Probe | 3/8-24 UNF | 2.0 m | Standard | 0.65 kg |
Popular Models from Bently Nevada
| Model | Description | Application | Length | Type | Weight |
|---|---|---|---|---|---|
| 330104-00-06-10-02-00 | XL 8 mm Probe with Armor | Standard mount | 1.0 m | Armored | 0.7 kg |
| 330130-040-00-00 | Extension Cable | With ClickLoc | 4.0 m | FEP | 0.14 kg |
| 330180-50-05 | Proximitor Sensor | Panel Mount | 5.0 m | Standard | 0.25 kg |
| 3500/42M-01-00 | Proximitor Seismic Monitor | Vibration Monitoring | – | Rack | 1.0 kg |
| 3500/22M-01-00 | Transient Data Interface | Data Acquisition | – | Module | 1.1 kg |
| 3500/15-05-01-00 | Power Supply | Rack Power | – | Module | 1.2 kg |
