Configured for radial and axial shaft position monitoring in 3300 XL systems, the Bently Nevada 330104-00-05-10-01-05 (330104-00-05-10-01-05 Proximity Probes) provides direct physical/electrical execution of non-contacting displacement measurement.

Suffix Model Configuration

The 330104 series utilizes a standardized coding format to designate mechanical interface and electrical termination options. The specific configuration of this unit defines the thread size, case length, total system cable length, and connector style, ensuring compatibility with factory-calibrated 3300 XL Proximitor sensor assemblies.

Hardware Specifications

Transducer Electrical Integrity

Accurate signal transduction requires precise eddy-current probe scaling. During commissioning, gap voltage validation (-10 VDC targets) is performed at the Proximitor sensor output to ensure the shaft target is centered within the linear operational range. High-frequency rotor dynamics data acquisition depends on the suppression of electromagnetic noise; therefore, cross-talk suppression is maintained by ensuring coaxial shielding is continuous and grounded exclusively at the monitoring instrument interface to prevent ground loops.

Ordering Info

• 330104-00-05-10-01-05 Proximity Probe

• Integral coaxial cable with connector

• Stainless steel mounting jam nuts

• Technical documentation and safety manual

Field Installation Guidelines

• Surface Preparation: Verify the target shaft area is free of coatings, burs, or surface oxidation to prevent eddy-current field modulation.

• Mechanical Mounting: Torque the probe body into the mounting bracket, ensuring proper thread engagement, then adjust to the required gap distance.

• Connector Protection: Maintain protective dust covers on the coaxial connector until the final mating sequence to prevent environmental ingress.

• Shield Integrity: Secure cable runs using non-conductive, vibration-rated clamps; do not pinch or crimp the coaxial dielectric.

• Impedance Matching: Confirm the total cable length (probe plus extension) matches the system calibration (5 m or 9 m) to prevent phase shift errors.

Frequently Asked Questions

• Can this probe be used in legacy 3300 systems? No, the 3300 XL series is electronically calibrated for the 3300 XL Proximitor; intermixing creates measurement errors.

• Is the cable length field-modifiable? No, the cable is factory-calibrated for specific capacitance; cutting it will cause loss of signal accuracy.

• What is the impact of probe tip damage? Minor surface scratches are acceptable, but any structural cracking of the PPS tip invalidates the sensor calibration.

• How do I identify a ground loop? High-frequency 50/60 Hz interference observed on the vibration signal indicates improper shield termination or common-mode noise.

• Is the probe compatible with hydrogen-cooled environments? Yes, the materials are rated for hydrogen-cooled generator environments.

• Why is a stainless steel case utilized? The AISI 303 stainless steel housing provides corrosion resistance and structural support in harsh machine environments.

• What is the target sensitivity? The system is fixed at 200 mV/mil (7.87 V/mm) as governed by the matched Proximitor and probe assembly.

• Does orientation impact radial measurements? Probes should be installed 45 degrees from the vertical centerline for optimal journal bearing analysis.