Description
1. Unboxing & Physical Snapshot
- Model & Brand: Bently Nevada 3300 XL 8 mm Proximity Probe (Part No. 330101-00-48-10-02-05)
- Physical Dimensions (Approximate W x H x D): Tip diameter: 8.0 mm (0.31 in); Unthreaded length: 0.0 in (Option 00); Overall case length: 480.0 mm (18.9 in) [Option 48]; Total cable length: 1.0 meter.
- Estimated Shipping Weight: 0.22 kg (0.48 lbs).
- What’s in the Box: 3300 XL 8mm proximity probe with 3/8-24 UNF mounting threads, miniature coaxial ClickLoc connector (without connector protector), Viton seal O-ring, and original factory calibration/conformance documentation.
2. Product Introduction
Turbomachinery operating under extreme thermal growth and continuous high-vibration stress require absolute precision in shaft-to-bearing clearance tracking. This extended-case sensor is engineered precisely for deep-pocket, recessed installations—which is critical for heavy industrial steam turbines where standard length probes cannot reach the measurement plane.
The assembly anchors directly into machine casing wells via a 3/8-24 UNF thread profile, translating minute air-gap fluctuations into proportional voltage signals for downstream Proximitor monitors. Maintaining strict mechanical integrity across this signal path prevents catastrophic machinery misalignments.
3. Core Technical Specifications
| Parameter | Value |
| Linear Range | 1.0 mm (40 mils) full-scale |
| Incremental Sensitivity | 50 mV/micron (125 mV/mil) +/- 5% |
| Frequency Response | DC to 10 kHz (-3 dB) |
| Linear Operating Range | -2 V to -12 V DC output span |
| Temperature Range (Probe Tip) | -35 °C to +125 °C (-31 °F to +257 °F) |
| Power Consumption / Draw | Operates on -17.5 V DC to -26 V DC via Proximitor supply |
| Target Material Compatibility | Factory calibrated to AISI 4140 steel (custom targets supported) |
| Termination Type | Miniature coaxial ClickLoc connector, unarmored standard cable |
4. Global Compliance & Industry Certifications
- Expected Regulatory Approvals: CE Mark, CSA/NRTL/C, ATEX, and IECEx hazardous area certifications (designated via option code 05).
- Safety & Compliance Impact: The CSA/ATEX hazardous area ratings ensure the loop energy and non-incendive design prevent electrical ignition arcs when deployed inside Class I, Division 2 or Zone 2 explosive process atmospheres.
- Verify specific lot certifications with OEM.
5. Long-Term Storage & Asset Preservation Guide
Keep this proximity probe inside its original anti-static (ESD) shielding bag to protect the delicate high-frequency coaxial cable winding and prevent electrostatic migration. Store the unit in a climate-controlled warehouse environment where relative humidity remains consistently below 60% to safeguard the patented TipLoc and CableLoc resin bonds from moisture ingress. Ensure the threaded body and the precision-machined probe tip are protected with their original thread caps to avoid mechanical nicking or distortion of the polyphenylene sulfide (PPS) plastic tip material.
6. Physical Installation Prerequisites
- Maintain a minimum radial clearance around the 8 mm probe tip to prevent erroneous side-viewing distortion from surrounding structural pocket walls.
- Ensure proper thread engagement along the 480mm case length, utilizing compatible lock nuts torqued to manufacturer specifications without over-compressing the Viton O-ring seal.
- Route the unarmored 1-meter coaxial cable away from high-voltage variable frequency drive (VFD) conduits to eliminate electromagnetic coupling into the vibration monitoring loop.
7. Buyer’s FAQ (Logistics & Compliance Focus)
- Q: What is the accurate Harmonized System (HS) code for clearing this vibration probe through global customs?
- A: Industrial proximity sensors and transducers generally fall under HS code 8537.10 or instrumentation-specific chapters depending on exact local customs interpretations. Always verify code alignment with your local trade compliance broker prior to international transit.
- Q: Does this specific configuration include pre-loaded factory calibration sheets for immediate auditing?
- A: Yes. Every genuine Bently Nevada unit ships with individual lot calibration data tracing output voltage curves directly to standard target materials.
- Q: How does the Country of Origin (COO) designation impact our corporate import documentation?
- A: This hardware is manufactured in the United States. Retain the original commercial invoice stating the US COO to satisfy preference criteria under applicable international free trade agreements.
- Q: Is specialized transit insurance mandatory for freight movement?
- A: Given the delicate coaxial micro-connectors and precision calibration tolerances, high-value asset transit insurance covering shock and vibration damage is strongly recommended.
- A: Given the delicate coaxial micro-connectors and precision calibration tolerances, high-value asset transit insurance covering shock and vibration damage is strongly recommended.




