Turbine & Rotating Machinery Vibration Solution – Bently Nevada 21000-16-05-00-066-03-02 | 3300 Series Proximity Transducer System
Where This Product Is Used
The Bently Nevada 21000-16-05-00-066-03-02 is a precision proximity transducer system engineered for continuous vibration and position monitoring of rotating machinery in mission-critical industrial environments. Typical deployment sites include:
- Steam & Gas Turbines – shaft radial vibration and axial position monitoring per API 670
- Centrifugal & Reciprocating Compressors – real-time rotor orbit and eccentricity measurement
- Pumps & Fans – early-warning imbalance and bearing-wear detection
- Gearboxes & Expanders – high-speed shaft displacement tracking in petrochemical plants
- Power Generation – generator rotor monitoring in utility and co-generation facilities
- Marine Propulsion Systems – shaft alignment verification and vibration trending
Wherever API 670 or ISO 10816 compliance is mandated, this transducer system delivers the measurement accuracy and long-term reliability that plant engineers depend on.
Technical Specifications
| Part Number | 21000-16-05-00-066-03-02 |
| Brand | Bently Nevada (Baker Hughes) |
| Series | 3300 XL Proximity Transducer System |
| Measurement Type | Non-contact eddy-current displacement / vibration |
| Probe Cable Length | 5 m (16 ft) |
| Extension Cable Length | 6.6 m (21.6 ft) |
| Probe Tip Diameter | 8 mm (standard) |
| Linear Range | 0.25 – 2.25 mm (10 – 90 mil) |
| Scale Factor | 7.87 V/mm (200 mV/mil) |
| Frequency Response | DC – 10 kHz (–3 dB) |
| Operating Temperature | –35 °C to +177 °C (probe); –35 °C to +85 °C (driver) |
| Supply Voltage | –24 VDC (nominal) |
| Output Signal | –2 VDC to –18 VDC (proportional to gap) |
| Connector Type | 3-pin MIL-C-5015 (driver); coaxial (probe) |
| Approvals | FM, CSA, ATEX, IECEx |
| Weight | ~1,300 g (complete system) |
| Country of Origin | United States |
Why Engineers Specify This Model
- API 670 Compliant – meets the industry standard for machinery protection systems without additional calibration
- Plug-and-Play with 3300/3500 Monitors – direct compatibility eliminates integration risk
- Matched Cable System – factory-matched probe, extension cable, and driver ensure calibrated scale factor accuracy
- Hazardous Area Rated – FM/CSA/ATEX/IECEx approvals allow installation in Zone 1 / Division 1 classified areas
- Proven Field Reliability – decades of runtime in refinery and power-generation environments worldwide
- Wide Temperature Range – probe rated to +177 °C for hot-section turbine bearing pedestals
Complete System Bill of Materials
The 21000-16-05-00-066-03-02 is a complete matched system. Typical companion components for a full monitoring loop include:
- Bently Nevada 3300 XL 8 mm Proximity Probe (included)
- 3300 XL Extension Cable – 6.6 m (included)
- 3300 XL Proximitor Driver / Signal Conditioner (included)
- Bently Nevada 3500/42M Proximitor Monitor (sold separately)
- Bently Nevada 3500/20 Rack Power Supply (sold separately)
- Bently Nevada 3500/92 Communication Gateway (optional, for DCS integration)
Compliance & Industry Standards
- API 670 – Machinery Protection Systems (5th Edition)
- ISO 10816 / ISO 20816 – Mechanical vibration evaluation
- IEC 61511 – Functional safety for process industry (SIL-capable loop)
- ATEX Directive 2014/34/EU – Equipment for explosive atmospheres
- IECEx IEC 60079 – International explosive atmosphere certification
- FM Class I, Division 1 / Zone 1 – North American hazardous location approval
- CSA C22.2 – Canadian Standards Association approval
- RoHS Compliant – Restriction of Hazardous Substances
Quality Assurance & Sourcing
Konmask.com sources the Bently Nevada 21000-16-05-00-066-03-02 exclusively through verified industrial-automation supply channels. Every unit undergoes the following before shipment:
- Visual and dimensional inspection against OEM datasheet
- Label and date-code verification
- Functional continuity check on probe and extension cable
- Anti-static packaging with humidity indicator card
- Certificate of conformance (CoC) available on request
We maintain stock of both new-surplus and factory-refurbished units. Condition is clearly stated on each listing. All refurbished units carry a 12-month warranty.
How to Source This Part
Ready to order or need a formal quotation for your procurement team?
- Add to Cart – immediate checkout with DHL / FedEx international shipping
- Request a Quote – email support@konmask.com with your PO number and required delivery date
- Bulk / Project Orders – contact us for volume pricing on multi-unit turbine protection projects
- Lead Time – in-stock units ship within 1–2 business days; ex-stock lead time quoted on request
- Export Compliance – we handle EAR99 export documentation and commercial invoices for customs clearance
Application-Specific FAQ
Q: Is the 21000-16-05-00-066-03-02 compatible with the Bently Nevada 3500 rack?
A: Yes. The 3300 XL proximity system is fully compatible with the 3500/42M Proximitor Monitor and all 3500-series rack components.
Q: Can I use a different extension cable length with this probe?
A: No. The probe, extension cable, and driver are factory-matched as a system. Substituting cable lengths will alter the scale factor and invalidate calibration. Always order a matched set.
Q: What target material is required for accurate measurement?
A: The 3300 XL system is calibrated for AISI 4140 steel. Other ferromagnetic alloys may require a correction factor. Consult Bently Nevada application note 141-108-V1 for target material guidelines.
Q: Is this unit suitable for Zone 0 hazardous areas?
A: The standard 21000-16-05-00-066-03-02 is rated Zone 1 / Division 1. For Zone 0 applications, contact Bently Nevada for intrinsically safe barrier configurations.
Q: Do you provide calibration certificates?
A: A certificate of conformance is included. NIST-traceable calibration certificates can be arranged at additional cost – please inquire at time of order.
Q: What is the typical MTBF for this transducer system?
A: Bently Nevada rates the 3300 XL system at >100,000 hours MTBF under normal operating conditions, making it one of the most reliable proximity systems in the industry.
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