330103-00-03-10-01-00 Bently Nevada 3300 XL Probe Without Armor

Product Overview

The Bently Nevada 3300 XL 330103-00-03-10-01-00 eddy current proximity probe measures dynamic shaft movement.

Reliable non-contact sensing provides accurate shaft vibration and axial position feedback for critical industrial machinery.

This sensor incorporates an M10x1 metric thread pattern constructed from AISI 303/304 stainless steel.

Model Configuration Breakdown

• 330103 : 3300 XL 8 mm Probe with M10 x 1 Thread (Unarmored)
  • 00 : Unthreaded Length Option — 0 mm
    • 03 : Overall Case Length Option — 30 mm
      • 10 : Total Length Option — 1.0 meter (3.3 feet)
        • 01 : Connector & Cable Option — Miniature coaxial ClickLoc with connector protector, standard cable
          • 00 : Agency Approval Option — Not required

Technical Specifications

Model Selection & Technical Comparison

Choosing the correct proximity probe requires evaluating mechanical dimensions and environmental conditions.

Compare the 330103-00-03-10-01-00 against the 330103-00-19-10-12-00 variant:

• Case Length Difference: Option 03 (30 mm) provides a compact body for shallow mounting brackets. Option 19 (190 mm) extends deep into thick machine housings.
• Cable & Connector Protection: Option 01 uses standard coaxial cable with a ClickLoc connector protector. Option 12 features a FluidLoc cable to prevent oil migration.
• Engineering Guidance: Select the 330103-00-03-10-01-00 for external bracket installations requiring moisture protection. Select the FluidLoc alternative if cabling runs inside oil-filled bearing housings.

Installation & Torque Guidelines

• Apply 11.2 N·m (100 in·lbf) recommended torque when mounting the probe body into standard brackets.
• Do not exceed 22.6 N·m (200 in·lbf) maximum torque when engaging only the first three threads.
• Maintain a minimum mechanical thread engagement depth of 15 mm for M10x1 threads.
• Set the mechanical gap distance to output -9 Vdc using a calibrated digital multimeter.

System Compatibility & Field Wiring

• Connects directly to Bently Nevada 3300 XL 8 mm Proximitor Sensors.
• Requires 3-conductor shielded triad cable for extension wiring up to 305 meters (1,000 feet).
• Supports field wiring sizes ranging from 0.2 to 1.5 mm² (16 to 24 AWG).
• Integrates seamlessly into 3500 and 1900/65 machinery protection monitoring systems.

Suitable Equipment & Applications

• Monitoring shaft radial vibration on high-speed centrifugal gas compressors.
• Measuring axial thrust position on steam turbine generator rotors.
• Tracking phase reference speed signals on industrial gearboxes using Keyphasor targets.
• Measuring shaft position and eccentricity on heavy boiler feed pumps.

Diagnostic Capabilities

• Monitors continuous DC bias voltage to verify proper probe tip gap positioning.
• Detects physical target loss or broken coaxial cables via supply signal drops.
• Maintains Average Scale Factor (ASF) stability across high-humidity operating environments.
• Viton O-ring seal isolates internal process pressures between probe tip and case.

Package Contents, Logistics & Warranty

Global PLC Spare HUB's Insight

Our vibration engineers often resolve noisy signal issues on Bently Nevada 3300 XL installations.

Field technicians frequently overlook installing the ClickLoc connector protector during routine maintenance.

Unprotected coaxial connectors accumulate airborne moisture, causing scale factor shifts over time.

Using the 330103-00-03-10-01-00 with its factory connector protector keeps signal lines completely dry.

Proper gap setting at -9 Vdc ensures linear dynamic range performance without signal clipping.

Frequently Asked Questions

Question: What is the main structural advantage of a 30 mm case length proximity probe?

Answer: The compact 30 mm body fits tight external brackets where machine casing clearance remains limited.

Question: Why should technicians install the included ClickLoc connector protector?

Answer: The protector seals coaxial junction points against oil mist, moisture, and dust contamination.

Question: What voltage reading indicates the correct initial gap setting for radial vibration?

Answer: Set the mechanical gap until the proximitor sensor outputs -9 Vdc at center position.

Question: Can sub-zero operating temperatures affect probe pressure sealing?

Answer: Temperatures below -34°C (-30°F) may cause premature seal degradation on standard Viton O-rings.

Question: How does case torque impact short-case probe installation reliability?

Answer: Excessive torque distorts probe threads, so limit recommended tightening to 11.2 N·m.

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