Bently Nevada 330701-00-20-40-02-00 3300 XL 11mm Proximity Probe

Product Description

The Bently Nevada 330701-00-20-40-02-00 is a 3300 XL 11 mm Proximity Probe. It measures shaft vibration and position in turbines, compressors, and pumps. This probe uses a PPS tip and 304 SST case for durability. It operates from -51°C to +177°C. The 75 Ω triaxial FEP cable offers reliable signal transmission. This model includes a miniature coaxial ClickLoc connector.

Technical Specifications

Key Performance & Environment

• Measurement Range: 11 mm proximity sensing for shaft displacement.
• Frequency Response: DC to 10 kHz (typical for 3300 XL systems).
• Sensitivity: 7.87 V/mm (200 mV/mil) nominal.
• Linearity: ±0.025 mm (±1 mil) over standard range.
• Resolution: 0.0025 mm (0.1 mil) static, dynamic fine.
• Temperature Range: -51°C to +177°C (probe only).
• Environmental Tolerance: Seals differential pressure with Viton O-ring.
• Interference Immunity: 75 Ω triaxial cable reduces noise.

Installation Guide

• Thread probe into case using 1/2-20 UNF thread.
• Engage thread up to 0.750 in maximum.
• Apply recommended torque: 15.2 N·m (133 in·lb).
• Do not exceed 45.2 N·m (400 in·lb).
• Connect ClickLoc connector finger-tight, max 0.565 N·m.
• Maintain bend radius ≥25.4 mm (1.0 in) for cable.
• Keep probe tip clean and free from debris.

Debugging & Maintenance

• Check dc resistance between center and outer conductor: 7.2 ± 0.8 ohms.
• Inspect cable for damage or kinks – replace if bent sharply.
• Verify connector torque – finger-tight only.
• Monitor temperature – avoid below -34°C for seal life.
• Use Bently Nevada compatible extension cables for length changes.

Compatibility

• Compatible with 3300 XL 5 mm and 8 mm probes (same system).
• Works with Bently Nevada 3500/7200 monitoring systems.
• Replaces older 3300 11 mm probes directly.
• Fits standard 1/2-20 UNF mounting holes.

Certifications & Approvals

• Multiple Approvals (Agency Option 05).
• EPL Ga, Gc: T1 to T5 (see temp schedule).
• EPL Dc: T280°C to T90°C based on ambient.
• Designed to meet API 670 standard.
• RoHS compliant (lead-free materials).

Packaging & Warranty

• Package Includes: 1 probe, mounting hardware, manual.
• Warranty: 12 months against manufacturing defects.
• Shipping: via FedEx, UPS, or DHL (global).
• Weight: 0.17 Kg, packed in anti-static bag.

Typical Applications & Diagnostics

• Applications: Turbine shaft vibration monitoring, compressor thrust position, pump bearing wear detection.
• Diagnostic Capability: Detects sub-synchronous vibration, imbalance, misalignment, and bearing faults.
• Provides direct DC gap voltage for position feedback.
• AC dynamic signal for vibration analysis.

FAQ

• Q: Can I use this probe with a 5 m cable? A: Yes, but total length must match system calibration.
• Q: What is the pressure rating? A: Not pressure tested; contact custom design for sealing test.
• Q: Is the cable replaceable? A: No, cable is integral to probe.
• Q: Does it work in explosive atmospheres? A: Yes, with appropriate EPL classification (T1–T5).
• Q: What is the thread size? A: 1/2-20 UNF.

Why Buy From Oiltech Controls?

• 15+ years in industrial automation spare parts.
• Global shipment support – fast delivery worldwide.
• Tested surplus / refurbished options with full functionality.
• 12-month warranty on every product.
• Technical verification before shipment to ensure performance.
• Expert support for obsolete control systems.

Contact Information:
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923

Copyright © 2026 Oiltech Controls Limited. All rights reserved.
Original Source: https://www.oiltechcontrols.com/