Product Overview

The Bently Nevada 330103-00-05-15-01-00 is a core component of the 3300 XL 8 mm Proximity Transducer System. Engineered for continuous, non-contact monitoring of rotating machinery, this probe serves as the primary sensor for measuring radial vibration, axial position, and shaft speed. By utilizing the eddy-current effect, the transducer converts the distance between the probe tip and the conductive target into a precise voltage signal. This system is designed to interface directly with the 3300 XL Proximitor sensor, ensuring high signal fidelity and stability across a wide temperature range, satisfying the rigorous demands of turbomachinery protection and condition monitoring.

Technical Specifications

Model Configuration Explanation

The 330103-00-05-15-01-00 model follows the standard Bently Nevada configuration nomenclature:

• 00: Unthreaded length (0 mm)

• 05: Overall case length (50 mm)

• 15: Total length (1.5 m)

• 01: Connector type (Miniature coaxial, non-removable)

• 00: Agency approval (Standard)

Typical Applications

The 330103 series is deployed in environments where precise shaft monitoring is essential for operational continuity. Common applications include:

• Steam and Gas Turbines: Monitoring radial vibration to detect rotor instability or misalignment.

• Centrifugal Compressors: Tracking axial position to ensure thrust bearing health.

• Large Electric Motors and Generators: Analyzing shaft displacement and dynamic orbital patterns.

• Pumps and Fans: Observing casing-relative vibration to schedule predictive maintenance.

System Compatibility

The 330103-00-05-15-01-00 is fully compatible with the 3300 XL 8 mm Proximity Transducer System. It must be paired with a compatible 3300 XL Proximitor sensor (e.g., 3300 XL 8 mm or 5 mm compatible models). The probe, extension cable, and Proximitor are a calibrated loop; swapping components with non-XL series transducers may introduce non-linearities and calibration errors. Users should ensure the system monitor (e.g., 3500 series) is configured for the specific scale factor of the 3300 XL 8 mm system, typically 200 mV/mil (7.87 V/mm).

Installation Procedures

Proper installation is required to ensure long-term measurement accuracy:

• Gap Setting: Utilize a calibrated feeler gauge or micrometer to set the initial gap between the probe tip and the target.

• Voltage Verification: Check the Proximitor output voltage using a digital multimeter; ensure the value is within the -10 VDC nominal linear range.

• Torque Constraints: Tighten the locknut to the recommended torque specifications provided in the installation manual to prevent mechanical resonance.

• Shielding: Route the coaxial cable through shielded, dedicated conduit to protect against electromagnetic interference (EMI).

• Grounding: Maintain consistent electrical continuity between the probe case and the machine machine-to-ground path to eliminate signal noise.

Product Advantages

• High Thermal Tolerance: Operates reliably in extreme temperatures ranging from -51 deg C to +177 deg C.

• Chemical Resistance: PPS probe tips are resistant to common industrial lubricants, hydraulic fluids, and corrosive atmospheres.

• Interchangeability: Designed for seamless integration within the 3300 XL ecosystem, allowing for quick field replacements.

• Precision: Provides accurate, high-bandwidth vibration data suitable for complex vibration analysis software.

Ordering Information

• 330103-00-05-15-01-00: 8 mm Proximity Probe

• Installation Documentation

• Protective Thread Cap (installed)

• Note: Extension cables and mounting brackets are ordered separately.

Frequently Asked Questions

• Q: Can I use this probe with a standard 3300 series Proximitor?

• A: No, 3300 XL probes must be used with 3300 XL Proximitor sensors to maintain the calibrated scale factor and frequency response.

  
  

• Q: What is the maximum linear range of this probe?

• A: The linear range for the 3300 XL 8 mm system is 2.0 mm (80 mils).

  
  

• Q: How do I identify if the probe is damaged?

• A: Check for erratic output voltages, physical damage to the tip, or high noise levels on the vibration waveform.

  
  

• Q: Is the cable length field-modifiable?

• A: No, the cable length is an integral part of the transducer system calibration; altering it will introduce measurement errors.

  
  

• Q: What material should the target shaft be made of?

• A: Calibration is based on 4140 steel; other materials will require a recalibration of the transducer's scale factor.

  
  

• Q: Is this probe intrinsically safe?

• A: The model suffix -00 indicates standard approval; refer to the specific agency documentation if explosive atmosphere certification is required.

  
  

• Q: Can the probe be submerged in oil?

• A: Yes, the probe is designed for use in harsh machine environments, including contact with oils and hydraulic fluids.

  
  

• Q: Why is a -10 VDC gap target used?

• A: This centers the probe within its linear region, ensuring accurate capture of both positive and negative vibration peaks without signal clipping.