Description
Product Brief
- Bently Nevada 3300 XL 11 mm Proximity Probes — precision eddy-current sensor for critical machinery protection.
- Designed for permanent vibration and position monitoring in turbines, compressors, and pumps.
- Robust construction: AISI 304 stainless steel case, PPS tip, and FEP-insulated 75 Ω triaxial cable.
- Wide operating temperature: -51 °C to +177 °C (-60 °F to +351 °F).
- This model: 5/8‑18 UNF thread, unarmored, 1.0 m total length, ClickLoc connector, FluidLoc cable.
Technical specifications
- Brand: Bently Nevada
- Model number: 330708-00-20-10-12-00 (series 3300 XL 11 mm Proximity Probes)
- Measurement range: 2 mm (80 mils) typical, with linearity within ±6 mils for 11 mm systems.
- Frequency response: 0 to 10 kHz (3 dB point) for dynamic displacement.
- Sensitivity (standard): 200 mV/mil (7.87 V/mm) for 3300 XL 11 mm probes.
- Resolution: Infinite (limited by system noise, <0.01 µm typical).
- DC resistance (RPROBE): 5.9 Ω ±0.5 Ω (1 m probe length).
- Temperature range: -51 °C to +177 °C (storage/operating). Avoid below -34 °C for pressure seal integrity.
- Environmental tolerance: Sealed against differential pressure; Viton O‑ring, FEP cable resists oil/chemicals.
- Immunity: 75 Ω triaxial construction rejects EMI/RFI; ClickLoc connector ensures stable signal.
Detailed ordering information
- 330708 = 3300 XL 11 mm probe, 5/8‑18 UNF thread, unarmored
- 00 = Unthreaded length: 0 in
- 20 = Overall case length: 2.0 in
- 10 = Total length: 1.0 m (3.3 ft)
- 12 = Miniature coaxial ClickLoc connector + FluidLoc cable
- 00 = Agency approval: not required
Installation & maintenance
- Mounting thread: 5/8‑18 UNF. Max engagement 0.938 in (23.8 mm).
- Recommended case torque: 15.2 N•m (133 in•lb) — never exceed 45.2 N•m (400 in•lb).
- Connector torque: Finger tight only; max 0.565 N•m (5 in•lb).
- Minimum bend radius: 25.4 mm (1.0 in) — protects cable from kinking.
- Maintenance friendly: ClickLoc connector allows quick replacement without special tools.
- Compatibility: Works with all 3300 XL 11 mm Proximitor sensors and 3500 monitoring systems.
Certification & compliance
- Agency approval option: 00 (not required) – for custom approvals contact Bently Nevada.
- Temperature class (ambient, probe only): T1 to T5 per EPL Ga/Gc; for Dc up to T280°C.
- Designed for use in hazardous areas when combined with appropriate barriers.
Package list & warranty
- Package includes: One 330708-00-20-10-12-00 probe, installation instructions (reference guide).
- Weight: 0.17 kg (shipping).
- Warranty: 12 months against defects in material and workmanship.
- Shipping: FedEx, UPS, DHL available – fast global delivery.
Typical applications & diagnostic ability
- Applications: Radial vibration, axial position, eccentricity, and keyphasor measurements on rotating machinery.
- Diagnostic strength: Detects shaft instability, rubs, misalignment, and bearing wear early.
- Direct interface with Bently Nevada monitors for real-time protection and diagnostics.
Frequently asked questions (FAQ)
- What is the difference between armored and unarmored cable?
Unarmored (this model) is lighter and more flexible; armored adds mechanical protection for harsh environments. - Can I use this probe with a 5 m extension cable?
Yes, but total cable length (probe + extension) must match the proximitor requirements — typically 1, 5, or 9 m total. - How do I choose the correct total length option?
Measure distance from probe tip to monitor. Standard options: 1.0 m, 5.0 m, 9.0 m. This part is 1.0 m. - Is the probe tip replaceable?
No, the tip is integrally molded with PPS. If damaged, replace the whole probe. - What if I need a pressure test before installation?
Standard probes are not pressure tested. Contact our custom department (sales@powergearx.com) for tested units. - Can I shorten the probe cable?
Not recommended. Cutting changes resistance and calibration; use exact length ordered.
Buying guide & selection help
- Match thread size (5/8‑18 UNF) to your mounting hole. Other thread options available in the 3300 XL series.
- Select total length based on distance from probe to extension cable. Common choice: 1.0 m (this part).
- For conductive fluid or abrasive environments, consider optional armored cable (not this model).
- Verify agency approval if required for your area (option 00 = none). We can help you find the right certified variant.
- Need a different connector? ClickLoc is standard; other connector styles available – contact us.
Contact us for inquiries:
📧 sales@powergearx.com
📞 +86 18030005825 (WhatsApp)
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