Bently Nevada 3300 NSv Modules: 330907-05-30-10-10-02-05 Reverse Mount Probe

Technical Dossier

Product Details And Specifications

Bently Nevada 3300 NSv Series Technical Notes

The Bently Nevada 3300 NSv (Non-contacting Vibration) series is a field-proven machinery protection and condition monitoring platform deployed across the global heavy process industries — including petrochemical refineries, nuclear power stations, offshore platforms, LNG terminals, and rotating equipment-intensive chemical plants. The 3300 NSv system is engineered to continuously monitor shaft radial vibration, axial position, differential expansion, and eccentricity on critical rotating machinery including steam turbines, gas turbines, compressors, pumps, and generators. Its modular rack-based architecture allows integration into both standalone machinery protection panels and plant-wide DCS/SIS environments via standard 4–20 mA, relay, and serial communication outputs. The platform is API 670 compliant and has accumulated decades of installed base across facilities operated by ExxonMobil, Shell, SABIC, Sinopec, and comparable tier-1 operators.

The Evolution of 3300 NSv Architecture

The 3300 NSv series was introduced by Bently Nevada (now a Baker Hughes company) as a successor to the earlier 3300 XL platform, addressing limitations in signal conditioning bandwidth and rack density. The architecture centers on a passive eddy-current probe (the field transducer), a proximitor/extension cable assembly (the signal conditioning element), and a rack-mounted monitor card (the processing and output element). Early 3300 NSv configurations used discrete single-channel monitor cards with fixed measurement ranges. Subsequent revisions introduced dual-channel cards, configurable full-scale ranges, and enhanced EMI shielding for nuclear-qualified installations. The system communicates with host DCS platforms via hardwired 4–20 mA loops and volt-free relay contacts; later firmware revisions added Modbus RTU capability on select monitor types. The 3300 NSv is now in the mature/end-of-active-production phase. Baker Hughes continues to supply spare parts and repair services, but new system design is directed toward the System 1 / 3701 platform. For operators committed to long-term 3300 NSv installations, DriveKNMS maintains a dedicated inventory of new-surplus, refurbished, and tested spare modules to extend system life beyond OEM active support windows.

3300 NSv Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked components within the Bently Nevada 3300 NSv series, classified by functional category:

Probes & Transducers

• 330907-05-30-10-10-02-05: 3300 NSv Reverse Mount Probe, 5 mm tip, 30 cm armored cable, standard temperature
• 330905-02-12-10-02-00: 3300 NSv Standard Mount Probe, 5 mm tip, 12 cm cable, general-purpose radial vibration
• 330905-02-30-10-02-00: 3300 NSv Standard Mount Probe, 5 mm tip, 30 cm cable, radial vibration/position
• 330905-02-50-10-02-00: 3300 NSv Standard Mount Probe, 5 mm tip, 50 cm cable, extended reach installation
• 330907-05-12-10-10-02-05: 3300 NSv Reverse Mount Probe, 5 mm tip, 12 cm armored cable, high-temperature variant
• 330907-05-50-10-10-02-05: 3300 NSv Reverse Mount Probe, 5 mm tip, 50 cm armored cable, nuclear-qualified option

Extension Cables

• 330130-080-00-00: 3300 NSv Extension Cable, 8 m, standard coaxial, connects probe to proximitor
• 330130-050-00-00: 3300 NSv Extension Cable, 5 m, standard coaxial, short-run installations
• 330130-100-00-00: 3300 NSv Extension Cable, 10 m, standard coaxial, long-run installations

Proximitors (Signal Conditioners)

• 330180-91-00: 3300 NSv Proximitor, 5 mm probe system, -24 VDC supply, standard temperature range
• 330180-90-00: 3300 NSv Proximitor, 5 mm probe system, -24 VDC supply, extended temperature range
• 330180-51-05: 3300 NSv Proximitor, 8 mm probe system, -24 VDC supply, high-sensitivity configuration

Monitor Cards (Rack-Mounted)

• 3300/16-13-01-01-00-00-00: 3300 NSv Dual-Channel Radial Vibration Monitor, 4–20 mA output, relay trip
• 3300/20-13-01-01-00-00-00: 3300 NSv Thrust Position Monitor, single-channel, API 670 compliant
• 3300/25-13-01-01-00-00-00: 3300 NSv Differential Expansion Monitor, dual-channel, steam turbine applications
• 3300/46-13-01-01-00-00-00: 3300 NSv Eccentricity Monitor, single-channel, slow-roll measurement
• 3300/55-13-01-01-00-00-00: 3300 NSv Speed/Phase Reference Monitor, keyphasor input, tachometer output

Rack & Power Supply

• 3300/05-01-01-00-00: 3300 NSv Rack, 19-inch, 6-slot, standard backplane
• 3300/10-01-01-00-00: 3300 NSv Power Supply Module, 115/230 VAC input, -24 VDC output, redundant-capable

Quality Control for the 3300 NSv Range

The 3300 NSv system relies on precise impedance matching between the probe tip, extension cable, and proximitor to maintain calibrated output sensitivity (typically 7.87 V/mm or 200 mV/mil). Any deviation in cable length, connector integrity, or proximitor gain introduces measurement error that can result in false trips or missed fault detection on critical machinery. DriveKNMS applies a dedicated test protocol for all 3300 NSv components prior to shipment:

• Probe tip gap calibration verification against Bently Nevada standard calibration blocks (AISI 4140 steel reference target)
• Extension cable continuity, insulation resistance (>100 MΩ at 500 VDC), and characteristic impedance verification
• Proximitor output linearity test across the full measurement range at -24 VDC supply
• Monitor card functional test: channel-by-channel signal injection, alarm/trip relay actuation verification, and 4–20 mA output accuracy check (±0.1 mA)
• Backplane connector inspection for pin damage, corrosion, and seating integrity
• Final burn-in at operating temperature for 24 hours on monitor cards prior to release

All test results are documented and available to customers as part of the shipment package.