Bently Nevada 330103‑00‑16‑50‑12‑05 — 3300‑XL 8 mm Eddy‑Current Proximity Probe

Description

Bently Nevada 330103‑00‑16‑50‑12‑05 — 3300‑XL 8 mm Eddy‑Current Proximity Probe

Product Overview

The 330103‑00‑16‑50‑12‑05 is a non‑armored full‑thread eddy‑current proximity probe within Bently Nevada 3300‑XL 8 mm transducer family. It converts physical gap variations between probe tip and metallic rotating target into impedance signals for the matched proximitor unit. Compliant with API 670, this probe is deployed for radial vibration, axial thrust‑position and Keyphasor reference measurements to deliver critical turbomachinery protection and predictive condition‑monitoring functions.

Critical Compatibility Warning

• Only compatible with 3300‑XL 8 mm proximitor (330180‑xx‑00) and 8 mm Microdot extension cables (330130‑xx‑xx‑00).
• Not interchangeable with 11 mm (330181) or NSv (330980) series hardware.
• Total system cable length = probe integral pigtail + extension cable, must strictly match the rated total‑system length of paired 8 mm proximitor. Gap‑voltage output feeds to 3500/42M, 3300 monitor racks for alarm, trip and trending.

Part Number Decoding

• 330103: 3300‑XL 8 mm proximity probe, M10×1 metric thread, non‑armored
• ‑00: Unthreaded body length = 0 mm (full‑thread construction)
• ‑16: Overall case length = 160 mm
• ‑50: Integral pigtail cable length = 5.0 m
• ‑12: 12‑pin Microdot coaxial connector
• ‑05: Multi‑agency hazardous‑area certifications (ATEX / IECEx / CSA / CE)

330103-00-16-50-12-05

Key Specifications

Main Features

• API‑670‑compliant M10×1 full‑thread probe: Fully interoperable within standard 3300‑XL 8 mm transducer chain; incompatible with 11 mm and NSv series components.
• 160 mm full‑thread body: Designed for deep counter‑bore cavities, allows flexible adjustment of probe penetration depth during commissioning.
• 5.0 m built‑in pigtail cable: Reduces required extension‑cable length for medium‑distance field wiring runs.
• Standard 2.0 mm linear range: Optimized for shaft radial vibration and axial thrust‑position monitoring.
• Wide temperature tolerance ‑35 °C ~ +175 °C: Resists oil‑mist and high‑temperature casing environment inside turbines and compressors.
• Stainless‑steel mechanical construction: High resistance to vibration and mechanical shock for continuous heavy‑duty rotating‑machinery compartments.
• 12‑pin Microdot interface: Standard mating interface for 330130‑xx‑xx‑00 8 mm extension cables.
• Multi‑agency intrinsic‑safety certification: Approved for hazardous classified zones when assembled inside complete certified 8 mm proximity transducer loop.
• Good interchangeability within 3300‑XL 8 mm family, no mandatory component‑pairing requirement.

Typical Application Scenarios

• Steam / gas turbine radial‑vibration and thrust‑position machinery‑protection loops with deep counter‑bore mounting holes
• Refinery & petrochemical centrifugal compressors requiring long‑body probe for deep casing bore installation
• Large critical pumps, blowers and gearbox condition‑monitoring systems
• Auxiliary Keyphasor phase‑reference and shaft‑speed measurement
• Off‑shore platform rotating‑equipment protection systems
• Field sites preferring 5 m pre‑attached probe cable to minimize extension‑cable segments
• Hazardous classified locations complying with ATEX / IECEx / CSA intrinsic‑safety requirements
• Spare‑part replacement for existing long‑body M10×1 full‑thread 3300‑XL 8 mm proximity measurement loops

Related & Recommended Alternative Models

Compatible Components & Accessories

1. 8 mm extension cables: 330130‑xx‑xx‑00 Microdot extension cables. Total system length = probe 5.0 m + extension cable = proximitor rated total length.
2. Matched 8 mm proximitor: 330180‑xx‑00 DIN‑rail proximitor sensor.
3. Monitor hardware: Bently 3500/42M, 3300/12, 3300/15 monitor racks.
4. Mounting parts: M10×1 lock‑nut for probe fixation.
5. Calibration test fixture: 8 mm static gap calibration rig for pre‑commission validation.
6. Torque wrench: For specified Microdot connector assembly torque.

Installation and Configuration Guide

Warning: Installation must be performed by qualified instrumentation technicians. Always refer to original Bently Nevada 3300‑XL official manual as primary reference document.

1. Mechanical Probe Mounting
   • Screw the M10×1 full‑thread probe into casing deep counter‑bore hole; install lock‑nut for position locking after gap adjustment.
   • Maintain probe‑tip perpendicular alignment against metallic shaft target; tilt angle will degrade linear‑range performance and measurement accuracy.
   • Ensure sufficient mechanical clearance; prevent probe‑to‑rotor collision under full shaft thermal‑growth and vibration excursion.
2. System‑Length Verification
   • Probe integral pigtail =5.0 m. Select proper extension cable so overall cable length strictly matches proximitor rated total‑system length. Length mismatch will shift scale‑factor performance.
   • Apply manufacturer‑specified torque for Microdot connection. Never connect or disconnect transducer loop while proximitor is powered ON.
3. Signal Cable Routing Requirements
   • Route coaxial probe cable separately from high‑power AC, contactor and VFD wiring to minimize EMI interference.
   • Respect minimum coaxial‑cable bending radius; avoid sharp kinks which may damage internal conductors.
4. Commissioning Gap Adjustment
   • Loosen lock‑nut, adjust probe penetration depth to set mechanical gap with shaft target.
   • Power up proximitor, measure DC gap‑voltage with high‑impedance multimeter. Set working point near mid‑range (approx.‑10 VDC for AISI‑4140 steel).
   • Tighten lock‑nut firmly; re‑check gap‑voltage to confirm no mechanical shift. Ensure operating point stays within linear zone (‑1 VDC ~ ‑17 VDC).
5. Monitor Channel Setup
   • Feed gap‑voltage signal to monitor channel, configure scale factor to 7.87 V/mm (200 mV/mil) for 8 mm 3300‑XL system.
   • Program Alert / Danger alarm thresholds following machine OEM specifications.
   • Perform loop fault test: simulate probe open‑circuit to verify Not‑OK diagnostic function triggers correctly.
6. Maintenance & Troubleshooting
   • Inspect Microdot connector for dirt, corrosion and loose contact during machinery turnaround.
   • Track DC gap‑voltage drift as health indicator of full transducer chain.
   • Not‑OK fault condition: inspect probe‑tip damage, cable insulation breakage or connector degradation. Probe is non‑field‑repairable; replace complete probe assembly upon hardware failure.
7. Hazardous‑Area Installation Notes
   • For ATEX / IECEx classified‑zone deployment, strictly follow 3300‑XL intrinsic‑safety requirements covering power supply, cable specification, shielding and chassis‑grounding rules.

Supplementary Remark

330103‑00‑16‑50‑12‑05 is a long‑body M10×1 full‑thread 3300‑XL 8 mm proximity probe with 160 mm case length, 5.0 m integral pigtail cable and 12‑pin Microdot connector. It is specially designed for deep counter‑bore mounting conditions and must pair exclusively with standard 8 mm‑series proximitor and extension‑cable assemblies. Prior to commissioning, cross‑check part‑number configuration, M10×1 thread dimension, pigtail length, connector type and total‑system cable length against project BOM and mechanical drawings.