Description
Product Introduction
The 3300 XL 11 mm Proximity Probes from Bently Nevada deliver precise shaft vibration and position measurements. Model 330710 features a rugged M16 x 1.5 threaded case with armor. This sensor operates in extreme temperatures from -52°C to +177°C. It suits turbines, compressors, and pumps in critical machinery. Made in U.S.A. You get reliable performance for predictive maintenance.
Key Technical Specifications
- Brand: Bently Nevada
- Model: 330710-000-050-90-02-05
- Series: 3300 XL 11 mm Proximity Probe
- Unthreaded Length: 0 mm (option 000)
- Overall Case Length: 50 mm (option 050)
- Total Length: 9.0 meters (29.5 feet) with option 90
- Connector Type: Miniature coaxial ClickLoc (option 02)
- Agency Approval: Multiple Approvals (option 05)
- DC Resistance (RPROBE): 8.5 ± 1.1 ohms from center to outer conductor
- Probe Tip Material: Polyphenylene sulfide (PPS)
- Probe Case Material: AISI 304 stainless steel (SST)
- Cable Specification: 75 Ω triaxial, FEP insulated
- Recommended Case Torque: 21.1 N•m (187 in•lb)
- Maximum Case Torque: 63.3 N•m (560 in•lb)
- Connector Torque: Finger tight max 0.565 N•m (5 in•lb)
- Minimum Bend Radius: 25.4 mm (1.0 in) with or without armor
- Thread Size: M16x1.5 with max engagement 24 mm
Measurement & Performance Data
- Target Diameter (Flat Surface): Recommended minimum 30.5 mm (1.2 in)
- Shaft Diameter: Recommended minimum 152 mm (6.0 in)
- Magnetic Field Effect (60 Hz up to 300 Gauss):
- Gap 0.5 mm (20 mil): 0.001 mil pp/gauss
- Gap 2.5 mm (100 mil): 0.009 mil pp/gauss
- Gap 4.6 mm (180 mil): 0.027 mil pp/gauss
- Linearity: Built into 3300 XL series design for consistent output
- Resolution: High resolution for small vibration detection
- Frequency Response: DC to high frequency for shaft dynamics
Environmental & Pressure Ratings
- Operating & Storage Temp: -52°C to +177°C (-62°F to +351°F)
- Low Temp Caution: Below -34°C (-30°F) may damage pressure seal
- Storage Only Temp: -52°C to +105°C (-62°F to +221°F)
- Relative Humidity: 100% condensing, non-submersible if connectors protected. Passed IEC 68-2-3.
- Pressure Seal: Viton O-ring design. Not pressure tested before shipment. Contact custom design dept if needed.
Temperature Classification (Safety Ratings)
- For EPL Ga and Gc:
- T1: -55°C to +232°C
- T2: -55°C to +177°C
- T3: -55°C to +120°C
- T4: -55°C to +80°C
- T5: -55°C to +40°C
- For EPL Dc (Temperature @ Ta):
- T280°C: -55°C to +232°C ambient
- T225°C: -55°C to +177°C ambient
- T170°C: -55°C to +120°C ambient
- T130°C: -55°C to +80°C ambient
- T105°C: -55°C to +100°C ambient
- T90°C: -55°C to +40°C ambient
Installation Guide
- Use recommended torque 21.1 N•m for M16x1.5 case.
- Do not exceed 63.3 N•m maximum case torque.
- Tighten connector finger tight only. Max 0.565 N•m.
- Keep bend radius at least 25.4 mm to avoid cable damage.
- Ensure target diameter ≥30.5 mm and shaft ≥152 mm.
- Protect connectors from submersible conditions.
Debugging & Maintenance Convenience
- Check DC resistance between conductors. Normal range 7.4 to 9.6 ohms for 9m length.
- Inspect cable for kinks or bends tighter than 25.4 mm.
- Verify gap voltage using 3300 XL proximitor.
- Clean probe tip gently. Do not scratch PPS material.
- Recalibrate with factory tools every major shutdown.
Compatibility Notes
- Works with all 3300 XL 11 mm Proximity Probes systems.
- Matches Bently Nevada proximitors and monitoring racks.
- Compatible with ClickLoc connector extensions.
- Use standard 75 Ω triaxial extension cables.
Certifications & Approvals
- Agency Approval Option 05: Multiple global approvals
- EPL Ga, Gc, and Dc temperature classified
- Designed for hazardous area machinery monitoring
- RoHS compliant by design
Package Contents
- 1 x Bently Nevada 330710 probe with 9m cable
- 1 x Miniature coaxial ClickLoc connector
- 1 x Installation data sheet
- Warranty: 12 months from shipment date
Shipping Methods
- FedEx – Express priority
- UPS – Worldwide saver
- DHL – International door to door
Typical Applications & Diagnostic Ability
- Applications:
- Steam and gas turbine vibration monitoring
- Compressor shaft position and thrust measurement
- Pump bearing and shaft displacement
- Fan and blower critical speed detection
- Diagnostic Ability:
- Detects sub-synchronous vibration
- Measures shaft runout and eccentricity
- Identifies imbalance and misalignment
- Works with 3300 XL monitors for trend analysis
FAQ – Frequent Questions & Buying Guide
- What is the standard cable length for this model?
This model includes 9.0 meters (29.5 feet) total probe length. - Can I use this probe in a wet environment?
Yes, but protect the connector. It withstands 100% condensing humidity but not submersion. - Why does the probe show different output in magnetic fields?
Magnetic fields up to 300 Gauss affect output slightly. See magnetic field data above. - What happens if I exceed the torque?
Over-torque may damage threads or break the probe case. Stick to 21.1 N•m. - How do I select the right probe length?
Choose total length based on distance from probe driver to machine. 9m suits most industrial setups. - Experience: Does low temperature affect the seal?
Yes. Below -34°C, the pressure seal may fail early. Keep above this limit. - Experience: My cable bent sharply. Is it damaged?
If bend radius <25.4 mm, internal insulation may crack. Replace the probe. - Buying Guide – Which thread option do I need?
M16x1.5 fits common metric mounting holes. Check your machine’s probe port. - Buying Guide – Unthreaded length 000 vs others.
000 means 0 mm unthreaded tip. Use this for standard exposed tip sensing. - Buying Guide – Agency approval option 05.
Option 05 gives multiple safety approvals. Choose this for global or hazardous sites.
Contact & Support
For inquiries, please contact: +86 158 8020 0923 (WhatsApp)
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