The Bently Nevada 330104-00-17-90-02-CN, also cataloged as the 330104 Proximity Probe, operates as a dedicated hardware component for non-contacting vibration and displacement measurement within rotor dynamics monitoring systems.

Configuration Matrix

The part number 330104-00-17-90-02-CN identifies a specific 3300 XL 8 mm transducer system configuration:

• 330104: 8 mm Proximity Probe

• 00: Unthreaded Length

• 17: Overall Case Length (170 mm)

• 90: Total Length (9.0 m)

• 02: Connector Option

• CN: Agency Approval/Country-Specific Standards

Hardware Specifications

TSI and Rotor Dynamics Characteristics

System accuracy is dependent on eddy-current probe scaling relative to the target material. The transducer system provides a linear output proportional to the gap between the probe tip and the observed shaft. Validation of gap voltage targets, typically centered at -10 VDC within the linear range, is required to ensure signal integrity. Proper installation must account for cross-talk suppression by maintaining adequate spacing between adjacent probes to prevent electromagnetic interference in multi-channel rotor vibration monitoring configurations.

Ordering & Included Components

• 1 x 330104 Proximity Probe

• 1 x Dust cap for connector

• Installation and technical data sheet

Field Installation Guidelines

• Mounting: Ensure probe body is secured with the appropriate locknut to prevent mechanical loosening due to machine vibration.

• Gap Setting: Verify the static gap voltage using a digital multimeter at the Proximitor sensor output terminals before machine startup.

• Grounding: Ensure the probe shield is continuous and grounded at the monitoring system rack to minimize electrical noise.

• Clearance: Maintain minimum clearances from the probe tip to any surrounding metallic structure to prevent false signal indications.

Logistics and Transit

• Delivery time: 2-7 days when payment finish.

• Dispatched via DHL/FEDEX/UPS.

• Components are sealed in anti-static industrial packaging to mitigate ESD risks and provide mechanical protection during global transit.

Technical FAQs

• What material targets are supported? The standard scaling is based on AISI 4140 steel; material-specific calibration is required for other alloys.

• What is the probe sensitivity? The standard sensitivity is 7.87 V/mm (200 mV/mil).

• How often should calibration be verified? Calibration verification is recommended during scheduled machine outages or if the baseline gap voltage drifts significantly.

• Can the probe operate in hazardous environments? Yes, provided the probe, extension cable, and Proximitor are installed with appropriate safety barriers.

• What extension cables are compatible? Only 3300 XL extension cables matching the probe's connector configuration must be used to maintain system impedance.

• What causes unstable gap voltage? Unstable readings are typically caused by damaged cables, loose connectors, or electrical interference from improper grounding.

• How is probe health tested? Health is verified through continuity checks of the coaxial cable and verifying the gap voltage remains within the expected linear operating range.

• What is the expected service life? Service life is generally defined by the mechanical integrity of the probe tip and the durability of the coaxial cable jacket under thermal and vibration stress.