Bently Nevada 330180‑51‑05 — 3300 XL 5/8 mm Proximitor® Sensor

Description

Bently Nevada 330180‑51‑05 — 3300 XL 5/8 mm Proximitor® Sensor

Product Overview

The 330180‑51‑05 is a Proximitor® sensor (pre‑amplifier) from Bently Nevada 3300‑XL 5/8 mm eddy‑current transducer family, with 5‑meter total system length, DIN‑rail mounting and multi‑agency hazardous‑area approvals. It forms the core signal‑conditioning unit of non‑contact proximity measurement systems, converting tiny gap‑dependent impedance changes from the probe into calibrated DC voltage output for static position and dynamic vibration monitoring, fully compliant with API 670 machinery‑protection standards.

330180‑51‑05

Specific Application Information

This proximitor sensor works together with matched eddy‑current probe and extension cable to accomplish non‑contact measurement on rotating metallic shafts:

1. Radial shaft vibration: Dynamic AC component of output reflects shaft vibration amplitude for bearing‑health monitoring.
2. Axial thrust / shaft position: DC gap‑voltage output monitors static thrust‑shaft displacement to detect thrust‑bearing degradation.
3. Keyphasor® phase reference & rotational speed: Cooperates with key‑notch probe to generate tachometer pulse for machine phase analysis and RPM calculation.
4. Retrofit replacement: Drop‑in spare for existing 3300‑XL 8 mm proximity systems in legacy turbomachinery installations.

Key Specifications

Main Features

• API‑670 compliant eddy‑current signal conditioning: Designed for turbomachinery protection systems, delivering stable linear gap‑voltage output.
• Dual‑mount mechanical design: Supports standard DIN‑rail clip‑on installation for cabinet high‑density layout, or bulkhead screw mounting matching legacy footprint for retrofit projects.
• Integrated fault‑diagnostic circuits: Not‑OK / Signal‑Defeat circuit suppresses false alarms caused by loose connections or probe damage; Power‑Up Inhibit avoids transient false trips at power‑on.
• Dual‑purpose signal outputs: Terminal‑block DC gap‑voltage for monitoring rack; coaxial PROX‑OUT port provides raw dynamic vibration signal for oscilloscope / diagnostic tools.
• Potted rugged construction: Tolerates high‑humidity (condensing) industrial cabinet environments, good resistance to vibration and shock.
• Test‑input pin: Allows quick loop verification by injecting simulated gap signal from function generator without mechanical probe adjustment.
• Full interoperability: Compatible with all 5 mm / 8 mm 3300‑XL proximity probes and matched extension cables; no special hardware modification required for system replacement.
• Galvanic isolation base: Provides 500 Vrms isolation between unit and mounting rail, removing requirement for extra insulating mounting plates.

Typical Application Scenarios

• Steam / gas turbine protection & condition monitoring in power generation plants
• Centrifugal compressors in petrochemical, refinery and LNG facilities
• Large‑size industrial fans, blowers, pumps and critical motors with fluid‑film bearings
• Off‑shore platform rotating‑machinery monitoring
• Pulp‑and‑paper, steel‑mill large rotating equipment safety monitoring
• Safety‑instrumented machinery protection systems requiring API‑670 compliance
• Site retrofit and spare‑part replacement for existing 3300‑XL proximity measurement loops

Related & Recommended Alternative Models

Compatible Components & Accessories

1. 3300‑XL 8 mm proximity probes: e.g. 330103‑00‑06‑10‑02‑00, 330104‑xx‑xx‑xx‑xx‑xx series; must match 5 m total system length configuration.
2. Matched 3300‑XL extension cables: 330130‑xx‑xx‑00 series; sum probe cable + extension cable shall equal proximitor system length rating.
3. Bently Nevada monitor modules: 3500/42M, 3300/12, 3300/15 monitor racks for gap‑voltage acquisition, alarm and trip logic.
4. Shielded twisted‑pair field wiring: 22 AWG shielded cable for power and signal wiring; single‑end shield grounding at monitor side only.
5. DIN‑rail mounting hardware: Standard 35 mm DIN rail for cabinet installation.
6. Calibration test kit: Proximitor static calibration fixture for gap‑voltage verification during commissioning and periodic maintenance.

Installation and Configuration Guide

Warning: Installation shall be performed by qualified instrumentation technicians; refer to original Bently Nevada 3300‑XL official manual as primary authority.

1. Mechanical Mounting
   • Install proximitor inside clean, well‑ventilated instrument cabinet; avoid mounting adjacent to high‑power contactors or high‑voltage drives to minimize EMI interference.
   • Clip unit onto standard 35 mm DIN rail or fasten via bulkhead mounting holes. Confirm isolation base is fully seated. Keep clearance around unit for heat dissipation.
2. Probe‑System Length Matching
   • Verify sum of probe cable length plus extension‑cable length equals the 5‑meter rated system length of 330180‑51‑05. Any length mismatch will degrade scale‑factor accuracy. Torque coaxial connectors to specified torque value, avoid over‑tightening.
3. Electrical Wiring
   • Supply negative‑polarity DC power: ‑17.5 VDC ~ ‑26 VDC to power terminals. Do NOT apply positive supply voltage, which will permanently damage the unit.
   • Use shielded twisted‑pair wiring for power and output signal. Connect cable shield only at monitor‑rack end, leave shield floating at proximitor side to prevent ground‑loop noise.
   • Terminate coaxial PROX‑OUT port to diagnostic instrument when dynamic vibration waveform capture is required; cap unused PROX‑OUT connector.
4. Commissioning & Gap‑Voltage Adjustment
   • Set mechanical probe installation gap to nominal mid‑range point (target ~‑10 VDC gap voltage for AISI‑4140 steel target).
   • Measure DC gap‑voltage between SIG and COM terminals with high‑impedance multimeter to confirm working point falls within linear zone (‑1 VDC ~ ‑17 VDC).
   • Perform static gap calibration; validate Not‑OK fault indication by simulating probe open‑circuit condition.
5. System Integration
   • Send DC gap‑voltage output to Bently Nevada monitor module. Configure monitor channel scale factor to 7.87 V/mm. Set alarm / trip thresholds according to machinery OEM specification.
   • Use Test‑Input pin to inject simulated signal for loop test without touching machine shaft.
6. Maintenance & Troubleshooting
   • Periodically inspect coaxial connections for looseness or corrosion.
   • Monitor Not‑OK status flag; Not‑OK assertion indicates probe, cable or connection failure.
   • Do not modify internal potted circuitry; replace complete unit when hardware fault occurs.
7. Safety Notes
   • In hazardous‑area application, strictly follow ATEX / IECEx installation requirements for cabling, grounding and enclosure rating.
   • Never connect / disconnect coaxial probe cables while power is applied to proximitor.

Supplementary Remark

330180‑51‑05 is a mature 3300‑XL series unit. For new‑build projects, check latest Bently Nevada part‑number migration notice; this part is widely stocked as spare‑part for global existing turbomachinery assets. Always cross‑check nameplate marking, system‑length marking and approvals before site deployment.