Configured for high-precision displacement sensing in industrial monitoring platforms, the Bently Nevada 330104-00-25-10-02-05 (330104) Proximity Probe provides direct physical signal transduction of rotor position and vibration within mechanical clearances.

Suffix Breakdown and Configuration

The 330104-00-25-10-02-05 part number specifies the following build characteristics:

• 00: Metric 3/8-24 UNF thread.

• 25: 2.5 inch (63.5 mm) overall case length.

• 10: 1.0 meter (3.3 feet) integral system length.

• 02: Miniature coaxial ClickLoc connector.

• 05: CSA, ATEX, and IECEx agency approval rating.

Hardware Specifications

Rotor Dynamics and Signal Conditioning

The 3300 XL system requires precise eddy-current probe scaling to ensure linear displacement output. Accurate rotor dynamics analysis depends on gap voltage validation to target the -10 VDC baseline at the Proximitor output, which establishes the reference for all subsequent displacement measurements. The system provides integrated cross-talk suppression, ensuring signal integrity is maintained even when multiple sensors are mounted in high-density proximity arrays within machine housings.

Ordering Information

• 1 x 330104-00-25-10-02-05 Proximity Probe.

• 1 x Installation hardware kit (nuts).

• 1 x Technical documentation package.

Field Installation Guidelines

• Mechanical Mounting

• Secure the probe into the mounting bracket using the 3/8-24 UNF threads; ensure the tip is positioned according to the required gap specification.

• Use the provided locknuts to prevent mechanical migration due to machine-induced vibration.

• Electrical Termination

• Connect the coaxial probe cable to the extension cable or Proximitor using the ClickLoc interface, ensuring the connection is fully seated.

• Maintain shield integrity to the monitoring system ground to minimize common-mode noise in the 4-20 mA or raw voltage loops.

Frequently Asked Questions

• What is the primary purpose of the PPS probe tip?

  The polyphenylene sulfide (PPS) tip provides chemical and moisture resistance, ensuring the probe remains stable when exposed to process lubricants and varied atmospheres.

• Can this probe be used in hazardous environments?

  Yes, the 05 suffix indicates the probe meets CSA, ATEX, and IECEx requirements for installation in classified hazardous zones.

• Is the 330104-00-25-10-02-05 interchangeable with older probes?

  It is designed for the 3300 XL system and is fully compatible with 3300 XL extension cables and Proximitors when maintaining the designated system length.

• What is the impact of the 2.5 inch case length?

  The 2.5 inch case length provides a fully threaded body, allowing for greater adjustment range in machines with thick casings or specific mounting depth requirements.

• How is the probe output scaled?

  The system provides a standard scale factor of 7.87 V/mm (200 mV/mil) when properly paired with a 3300 XL Proximitor.

• Can the cable be field-terminated?

  No, the integral cable is factory-calibrated. Field termination or shortening the cable will alter the system electrical resonance and degrade measurement accuracy.

• What is the maximum operating temperature?

  The transducer is rated for continuous operation within a temperature range of -51 deg C to +177 deg C, supported by internal thermal compensation.

• Is the probe case grounded?

  The stainless steel case provides an environmental and electrical shield; ensure the mounting bracket is properly grounded to the machine frame to prevent interference.