Product Specification Document: Bently Nevada 330901-05-32-05-02-00

1. Product Overview

2. Basic Product Information

Manufacturer and Model Identity

• Manufacturer: Bently Nevada (Emerson Automation Solutions)

• Product Series: 3300 NSv Proximity Transducer System

• Model Number: 330901-05-32-05-02-00

• Product Type: 8 mm Narrow Side View (NSv) Eddy Current Proximity Probe

• System Compatibility: 3300 NSv Proximitor Sensors (e.g., 330980 series); 3300/3500 Monitoring Systems

• Calibration Standard: Factory-calibrated for AISI 4140 ferromagnetic steel

• Country of Origin: United States

Electrical Characteristics

• Measurement Principle: Eddy current induction (non-contact displacement)

• Probe Tip Diameter: 8 mm (0.31 in)

• Scale Factor (Sensitivity): 7.87 V/mm (200 mV/mil) ±0.5%

• Linear Gap Range: 1.6 mm (63 mils)

• Frequency Response: DC (static) to 10 kHz (dynamic, ±3 dB)

• System Length: 5.0 meters (16.4 ft) total (probe + extension cable)

• Voltage Compatibility: -17.5 V DC to -26 V DC supply from proximitor

Physical and Mechanical

• Housing Material: 316 stainless steel (corrosion-resistant)

• Mounting Thread: M8 × 1 (compact threading for tight spaces)

• Probe Cable Length: 0.5 m (1.6 ft)

• Cable Type: Unarmored, high-temperature PTFE-insulated cable

• Connector Type: Miniature coaxial ClickLoc connector (probe end)

• Net Weight: ~0.06 kg (0.13 lb)

• Enclosure Rating: IP54 (dust-protected; splash-resistant)

• Bend Radius: Minimum 25 mm (1 in) (continuous)

Compliance and Certification

• Standards: API 670 (4th edition), ISO 10816, IEC 61000-6-2

• EMC: CE marked (enhanced RFI/EMI immunity for industrial noise)

• Environmental: RoHS compliant; halogen-free cable insulation

• Certifications: cULus, ATEX/IECEx, CSA (multiple hazardous area approvals)

• Quality: ISO 9001 manufacturing; 100% factory tested and calibrated

3. Function and Product Positioning

Core Measurement Functions

• Shaft Vibration Monitoring: Captures dynamic radial vibration (amplitude, frequency, phase) on small-diameter shafts (<51 mm/2 in), detecting imbalance, misalignment, bearing wear, or rubs in tight machinery cavities.

• Axial Position & Differential Expansion: Measures static shaft position, thrust bearing clearance, and axial thermal growth (differential expansion) in turbines and compressors with limited axial installation space.

• Keyphasor Signal Integration: Works with keyphasor probes to provide once-per-revolution pulses for phase angle and speed calculation, supporting vibration analysis and overspeed protection in constrained setups.

• High-Temperature Operation: Maintains measurement accuracy in extreme heat environments where standard probes may drift, ideal for machinery near exhaust or high-temperature process zones.

Operational Features

• NSv Compact Design: Narrow side profile and M8 × 1 threading enable installation in confined spaces (e.g., between turbine stages, small compressor casings) where standard 8 mm XL probes cannot fit or maintain linearity.

• High Linearity & Stability: ±0.5% full-scale linearity over 1.6 mm linear range, with minimal temperature drift for consistent long-term measurements.

• ClickLoc Connector: Tool-less, quick-connect coaxial connector ensures reliable electrical contact and simplifies probe replacement in hard-to-reach areas.

• Harsh Environment Resistance: 316 stainless-steel housing and PTFE insulation resist corrosion, oil, moisture, and extreme temperatures, extending service life in industrial conditions.

Product Positioning

• Small-diameter shaft vibration/position monitoring (<51 mm)

• Turbine/compressor differential expansion in confined casings

• API 670-compliant protection systems for compact machinery

• Retrofit projects replacing standard probes in space-limited setups

4. Core Performance Parameters

Measurement Performance

• Probe Compatibility: 3300 NSv 8 mm proximitor systems only (not compatible with 3300 XL 8 mm systems)

• Linear Gap Range: 1.6 mm (63 mils)

• Scale Factor: 7.87 V/mm (200 mV/mil) ±0.5%

• Linearity: ±0.5% full-scale (over linear range)

• Repeatability: ±0.1% full-scale

• Frequency Response: DC to 10 kHz (±3 dB)

• Target Material: Optimized for AISI 4140 carbon steel; non-ferrous targets require factory recalibration

Environmental Limits

• Operating Temperature: -51°C to +177°C (-60°F to +351°F)

• Storage Temperature: -55°C to +200°C (-67°F to +392°F)

• Relative Humidity: 5%–95% RH (non-condensing)

• Vibration Resistance: 25 g (5 Hz–2 kHz); 50 g shock (11 ms half-sine)

• EMI Immunity: >60 dB attenuation (1 MHz–1 GHz), meeting IEC 61000-6-2

• Chemical Resistance: Resists mineral oils, greases, and common industrial solvents

Reliability

• MTBF: >250,000 hours (25°C, full load)

• Warranty: 1 year (standard); extended warranties available

• Lifecycle Status: Active production (fully supported in new and legacy 3300 NSv systems)

5. General Matching Accessories

Installation and Mounting

• M8 × 1 mounting hardware kit (lock nuts, washers)

• Probe strain relief clamp (high-vibration areas)

• Connector protective boot (dust/moisture protection)

• Hazardous-area cable glands (ATEX/IECEx/CSA certified)

System Compatibility

• 3300 NSv Proximitor Sensor (e.g., 330980-70-CN)

• 3300 NSv Extension Cables (e.g., 330902-05-00)

• 3500/42M, 3500/45, 3500/50 Monitoring Modules

• 4–20 mA signal converters (PLC/DCS integration)

Maintenance and Spares

• Replacement ClickLoc connector pins and sockets

• PTFE cable repair kit (insulation, shielding)

• Probe cleaning and inspection kit

• Annual calibration verification certificate

Documentation and Software

• 330901-05-32-05-02-00 datasheet and installation manual

• Bently Nevada 3300 NSv system planning guide

• Proximity system calibration software (setup/verification)

• Factory test and calibration report (included with unit)

6. Applicable Equipment and Industry Fields

Primary Applications

• Power Generation: Small steam/gas turbines, auxiliary generators, and compact compressors in thermal and combined-cycle power plants.

• Oil and Gas: Small-bore centrifugal compressors, turboexpanders, and process pumps in refineries, LNG facilities, and offshore platforms.

• Petrochemical: Compact process compressors, reactors, and rotating equipment with limited mounting clearance.

Secondary Applications

• Heavy Industry: Small-diameter rolling mills, industrial fans, and blowers for vibration and position control.

• Marine: Ship auxiliary turbines, generators, and cargo pumps with space-constrained machinery rooms.

• Utilities: Water treatment small pumps and blowers for predictive maintenance in compact installations.

Compatibility Notes

• NSv System Exclusive: Designed only for 3300 NSv proximitor systems; not compatible with 3300 XL 8 mm, 11 mm, or 25 mm systems.

• Fixed System Length: Calibrated for 5.0-meter total system length (probe + extension cable); do not mix with different-length cables.

• Small Shaft Optimization: Ideal for shafts <51 mm (2 in) diameter; larger shafts may require standard 8 mm XL probes for full linearity.