Turbomachinery Vibration Monitoring Solution – Bently Nevada 21000-16-10-00-103-04-02 | 3300 Series
Where This Product Is Used
The Bently Nevada 21000-16-10-00-103-04-02 Proximity Probe Housing Assembly is engineered for continuous, non-contact vibration and position measurement in rotating machinery. It is widely deployed in:
- Steam & Gas Turbines – Shaft radial vibration monitoring at bearing journals
- Centrifugal Compressors – Rotor dynamic displacement measurement in petrochemical plants
- Pumps & Fans – Critical rotating equipment in power generation and water treatment
- Gearboxes – Gear mesh frequency and shaft orbit analysis
- Marine Propulsion Systems – Shaft monitoring in offshore and naval applications
- Pulp & Paper Mills – High-humidity environments requiring robust probe housing
This housing assembly provides the mechanical interface between the proximity probe tip and the target shaft surface, ensuring precise gap setting, vibration isolation, and long-term positional stability under thermal cycling and process vibration.
Technical Specifications
- Part Number: 21000-16-10-00-103-04-02
- Series: Bently Nevada 3300 XL Proximity Transducer System
- Type: Proximity Probe Housing Assembly
- Probe Tip Diameter: 16 mm (compatible with 3300 XL 8mm / 11mm / 16mm probe families)
- Cable Length: 1.0 m (extension cable interface)
- Thread: M10 × 1.0 (standard mounting thread)
- Material: Stainless steel housing with PTFE-insulated cable
- Temperature Range: –40°C to +177°C (probe body)
- Ingress Protection: IP67 (dust-tight and water-immersion rated)
- Weight: 1,050 g (assembly)
- Connector: Integral coaxial connector, compatible with 3300 XL extension cables
- Sensitivity: 7.87 V/mm (200 mV/mil) nominal
- Linear Range: 0.25 mm to 2.26 mm (10 mil to 90 mil)
- Supply Voltage: –24 VDC (from Bently Nevada monitor)
Why Engineers Specify This Model
- OEM-Matched Performance: Designed to integrate directly with Bently Nevada 3300 XL monitors (3300/16, 3300/20, 3300/25) without recalibration
- Robust Housing Design: Stainless steel construction withstands high-vibration, high-temperature, and corrosive process environments
- Plug-and-Play Replacement: Drop-in replacement for existing 21000-series installations — no rewiring or re-gapping required when replacing like-for-like
- Certified Accuracy: Factory-calibrated sensitivity ensures API 670 alarm and trip setpoint integrity
- Long Service Life: PTFE cable insulation resists oil, steam, and chemical exposure common in turbomachinery environments
- Reduced Downtime: Fast field replacement during planned outages minimizes mean time to repair (MTTR)
Complete System Bill of Materials
For a complete Bently Nevada 3300 XL proximity transducer loop, the following components are typically required:
- Proximity Probe: 21000-16-10-00-103-04-02 (this item)
- Extension Cable: Bently Nevada 330130-045-00-CN or equivalent (1.5 m / 5 m / 9 m options)
- Proximitor® Sensor: Bently Nevada 3300 XL 8mm / 11mm / 16mm Proximitor
- Monitor Module: Bently Nevada 3500/42M Proximitor / Seismic Monitor or 3300 series rack
- Mounting Hardware: Probe holder bracket, locknut, and jam nut (site-specific)
- Signal Cable: Shielded twisted pair from Proximitor to DCS/PLC input card
Compliance & Industry Standards
- API 670 – Machinery Protection Systems (5th Edition): Meets probe, extension cable, and Proximitor system requirements for critical machinery
- IEC 60079 – Hazardous Area (ATEX/IECEx): Available in certified variants for Zone 1/Zone 2 installations (confirm suffix code)
- ISO 10816 / ISO 20816 – Mechanical vibration evaluation of rotating machinery
- CE Marking – Compliant for European market installations
- RoHS – Restriction of Hazardous Substances compliant
Quality Assurance & Sourcing
All Bently Nevada components supplied by Konmask.com are sourced through verified industrial distribution channels. Each unit undergoes:
- Visual and dimensional inspection against OEM datasheet
- Packaging integrity check (original OEM packaging preferred; repackaged units clearly identified)
- Traceability documentation available upon request (batch records, CoC)
- 30-day return policy for unused, unopened units
We do not supply counterfeit, refurbished, or grey-market parts. All stock is traceable to authorized distribution sources.
How to Source This Part
- In Stock: Contact us for real-time availability confirmation before placing an order
- Lead Time: Typically 3–7 business days for in-stock items; 4–8 weeks for factory-order items
- MOQ: 1 piece (no minimum order quantity)
- Export: Available for international shipment — DDP, DAP, EXW terms available
- Payment: T/T, PayPal, credit card accepted
- RFQ: Email support@konmask.com with your PO number, required quantity, and delivery location
Application-Specific FAQ
Q: Is 21000-16-10-00-103-04-02 compatible with the Bently Nevada 3500 monitoring system?
A: Yes. The 3300 XL proximity transducer system is fully compatible with 3500 series monitor racks when used with the appropriate Proximitor sensor and extension cable. Verify the monitor input card accepts –24 VDC eddy-current probe signals.
Q: What is the correct gap voltage for this probe?
A: The nominal gap voltage is –10.0 VDC at the midpoint of the linear range (approximately 1.27 mm / 50 mil gap). Refer to the Bently Nevada 3300 XL installation manual for site-specific gap setting procedures.
Q: Can this probe be used in a hazardous area (Zone 1)?
A: Hazardous area certification depends on the specific suffix code. Confirm the ATEX/IECEx certificate number on the product label. Contact Konmask.com to verify the certification status of your specific unit.
Q: What is the difference between the 21000 and 330100 series probe part numbers?
A: The 21000 series uses the legacy Bently Nevada part numbering convention. The 330100 series reflects the updated 3300 XL product line numbering. Both series are functionally equivalent for most 3300 XL monitor applications — cross-reference with your monitor’s compatibility matrix before substitution.
Q: Do you provide calibration certificates?
A: Factory calibration data is included with OEM-packaged units. Third-party calibration certificates can be arranged upon request at additional cost.
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