Bently Nevada 330904-01-14-05-02-00 NSv Proximity Probe | Replacement, Equivalent & Selection Guide
The Bently Nevada 330904-01-14-05-02-00 is a high-precision NSv Series eddy-current proximity probe designed for continuous shaft vibration and position monitoring in rotating machinery. This page provides full technical specifications, compatible replacement models, selection guidance, and sourcing information to help engineers and procurement teams make confident decisions.
Technical Specifications
- Part Number: 330904-01-14-05-02-00
- Series: NSv (Non-Standard voltage) Proximity Probe
- Manufacturer: Bently Nevada (Baker Hughes)
- Probe Type: Eddy-Current (Non-contact)
- Tip Diameter: 5 mm (approx.)
- Cable Length: 14 inches (integral cable)
- Connector: 02 (standard BNC-compatible)
- Thread: M8 x 1.0
- Operating Temperature: -35°C to +120°C
- Sensitivity: 200 mV/mil (7.87 V/mm)
- Linear Range: 10–90 mil (0.25–2.29 mm)
- Supply Voltage: -24 VDC (nominal)
- Output: Voltage proportional to gap distance
- Target Material: AISI 4140 steel or equivalent
- Approvals: CE, ATEX (consult datasheet for zone ratings)
Compatible Replacement & Equivalent Models
The following models are commonly evaluated as functional replacements or equivalents for the 330904-01-14-05-02-00. Always verify electrical and mechanical compatibility before substitution:
- Bently Nevada 330903-00-14-05-02-00 — Standard 3300 XL 8mm probe, same cable length; verify driver compatibility
- Bently Nevada 330780-50-00 — 3300 XL 11mm probe system; wider linear range, different thread
- Bently Nevada 330104-00-14-05-02-00 — 3300 NSv 5mm probe; direct series equivalent, confirm suffix codes
- Epro PR6423/010-100 — Third-party eddy-current probe; compatible with Bently Nevada drivers in many installations
- Metrix 5488-001 — Alternative proximity probe; requires driver and gap calibration verification
Note: Replacement selection must account for driver/proximitor model, cable length, connector type, and target material. Contact Konmask for application-specific guidance.
Why Choose the Original Model
- OEM Accuracy: Factory-calibrated sensitivity ensures direct compatibility with Bently Nevada 3500/3300 monitoring systems without recalibration
- System Integrity: Maintains API 670 compliance for machinery protection systems
- Traceability: Full OEM documentation and certificate of conformance available
- Reliability: Proven in turbines, compressors, pumps, and motors across oil & gas, power generation, and petrochemical industries
- Warranty: Backed by manufacturer warranty when sourced through authorized channels
Typical Applications
- Shaft radial vibration measurement on steam and gas turbines
- Axial position monitoring on centrifugal compressors
- Differential expansion measurement in power plant turbines
- Eccentricity monitoring on large rotating machinery
- Keyphasor® reference signal generation
- Pump and motor shaft orbit analysis
System Compatibility
The 330904-01-14-05-02-00 is designed to operate within the following Bently Nevada system architectures:
- Bently Nevada 3500 Series — Machinery Protection System (MPS); compatible with 3500/42M, 3500/40M modules
- Bently Nevada 3300 Series — Legacy monitoring systems; verify proximitor model
- Bently Nevada TDXnet — Wireless monitoring nodes (adapter required)
- Proximitor/Driver: Pair with Bently Nevada 330180 or 330130 series proximitors for correct signal conditioning
Always confirm the complete probe-cable-proximitor system part numbers to ensure calibrated performance.
Selection Guide
Use the following criteria to confirm the 330904-01-14-05-02-00 is the correct model for your application, or to identify the right alternative:
- Tip Diameter: 5 mm — suitable for tight installation spaces; choose 8 mm or 11 mm probes for wider linear range
- Cable Length (14 in): Integral cable; if longer extension is needed, add an extension cable (e.g., 330130 series)
- Connector Code -02: Standard connector; verify mating connector on proximitor or junction box
- Target Material: Optimized for AISI 4140; for stainless steel or non-ferrous targets, sensitivity correction factors apply
- Temperature Range: Suitable for standard industrial environments; for high-temp applications (>120°C), specify high-temperature probe variants
- Monitoring System: Confirm 3500 or 3300 series driver to ensure voltage output compatibility
Quality Assurance & Sourcing
- All units sourced by Konmask.com are inspected for physical integrity and part number accuracy prior to shipment
- Original OEM packaging and documentation preserved where available
- Certificate of conformance (CoC) provided upon request
- Surplus, refurbished, and new stock options available — condition clearly stated at time of quotation
- Export compliance screening performed for all international orders
How to Order
- Confirm full part number: 330904-01-14-05-02-00
- Specify required quantity and preferred condition (new / surplus / refurbished)
- Provide your shipping destination and any import/export requirements
- Request a formal quotation via support@konmask.com or add to cart for standard stock orders
- Lead time and availability confirmed within 1 business day
Replacement & Compatibility FAQ
Q: Can I use a 330903 probe as a direct replacement for the 330904?
A: The 330903 is an 8mm probe vs. the 330904’s 5mm tip. Mechanical fit and linear range differ — not a direct drop-in without verifying mounting hole size and gap settings.
Q: Is the 330904-01-14-05-02-00 compatible with third-party proximitors?
A: Some third-party drivers (e.g., Epro) are designed for cross-compatibility, but sensitivity and output voltage must be verified. Konmask recommends using OEM-matched proximitors for critical machinery protection.
Q: What does the suffix “-01-14-05-02-00” mean?
A: The suffix encodes configuration details: probe body style (-01), cable length in inches (-14), tip size code (-05), connector type (-02), and options code (-00). Each digit affects physical and electrical characteristics.
Q: Can Konmask source discontinued or obsolete 330904 variants?
A: Yes. Konmask specializes in sourcing legacy and obsolete Bently Nevada parts. Contact us with your full part number for availability.
Q: Do you provide a warranty on surplus units?
A: Surplus units are sold as-is with inspection reports. New OEM stock carries the manufacturer warranty. Extended warranty options available — inquire at time of order.
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