Bently Nevada 21000-16-05-00-135-03-02 – Eddy Current Proximity Probe Housing Assembly | 3300 XL Series Platform
Engineering Background: The Bently Nevada 21000 Series Proximity Probe Housing Assemblies are purpose-engineered components within Baker Hughes’ industry-leading 3300 XL continuous vibration monitoring ecosystem. Designed to house and protect eddy-current proximity probes in demanding rotating machinery environments, these assemblies ensure precise radial and axial displacement measurement with long-term mechanical stability.
Product Positioning: Part number 21000-16-05-00-135-03-02 is a fully specified housing assembly variant, encoding probe tip diameter, cable length, thread configuration, and connector type. It is the preferred choice for procurement engineers specifying replacement or expansion components in turbines, compressors, pumps, and other critical rotating assets monitored under API 670 standards.
Complete Technical Specifications
- Part Number: 21000-16-05-00-135-03-02
- Series / Platform: Bently Nevada 3300 XL / 21000 Series
- Component Type: Proximity Probe Housing Assembly
- Sensing Technology: Eddy Current (non-contact)
- Probe Tip Diameter: 16 mm
- Cable Length: 5 m
- Extension Cable Length: 135 cm
- Measurement Range: 0–90 mil pp (0–2.286 mm pp) typical
- Operating Temperature: –35°C to +177°C (probe tip)
- Compatibility: 3300 XL 8mm / 11mm / 16mm monitor systems
- Compliance: API 670, CE, RoHS
- Weight: Approx. 1,440 g (assembled)
- Country of Origin: United States
Proven Application Environments
- Steam and gas turbine shaft vibration & position monitoring
- Centrifugal and reciprocating compressor radial displacement measurement
- Boiler feed pump and cooling water pump bearing monitoring
- Gearbox and motor shaft eccentricity detection
- Petrochemical, LNG, power generation, and offshore platforms
- Any API 670-compliant machinery protection system
Engineering Advantages
- Non-contact measurement: Zero mechanical wear, no lubrication required
- High-frequency response: Captures sub-synchronous and super-synchronous vibration events
- Robust housing construction: Stainless steel body resists corrosion, vibration fatigue, and thermal cycling
- Drop-in replacement: Fully interchangeable with existing 3300 XL installations — no recalibration of monitor required
- Long cable assembly: 135 cm extension reduces field splicing and signal degradation risk
- OEM-grade performance: Maintains factory sensitivity (200 mV/mil) and linearity specifications
System Architecture & Signal Flow
The 21000-16-05-00-135-03-02 housing assembly integrates into the standard Bently Nevada 3300 XL signal chain as follows:
Rotating Shaft → Probe Tip (Eddy Current Field) → Probe Body → Extension Cable (135 cm) → 3300 XL Monitor Input → Keyphasor / Vibration Processing → DCS / Safety System Output
The housing mechanically fixes the probe at the correct gap distance (typically 50 mil / 1.27 mm from target) and provides EMI shielding continuity throughout the cable run. Signal output is a DC voltage proportional to gap distance, processed by the paired 3300 XL monitor card.
Sourcing & Quality Verification
- Source: Konmask.com specializes in genuine and certified-equivalent Bently Nevada components for MRO and capital project procurement
- Inspection: Each unit undergoes visual inspection, part number verification, and packaging integrity check prior to shipment
- Documentation: Certificate of conformance and packing list provided with every order
- Traceability: Batch and serial records maintained for audit compliance
- Warranty: 12-month warranty against manufacturing defects
Procurement Process
- Confirm part number 21000-16-05-00-135-03-02 against your BOM or existing installation drawing
- Submit RFQ or place order directly via Konmask.com product page
- Receive order confirmation with lead time and shipping details within 1 business day
- Shipment dispatched with tracking; DDP/DAP Incoterms available for international orders
- Post-delivery technical support available via email or phone
Technical FAQ
Q: Is this part compatible with the Bently Nevada 3500 Series monitors?
A: The 21000 Series is optimized for 3300 XL systems. For 3500 Series compatibility, please contact our technical team to confirm interoperability or identify the correct 330xxx equivalent.
Q: What is the standard gap voltage for this probe?
A: Nominal gap voltage is –10 VDC at 50 mil (1.27 mm) gap, with a sensitivity of 200 mV/mil. Verify against your specific monitor configuration.
Q: Can this housing be used in hazardous (Ex) areas?
A: Consult the OEM ATEX/IECEx certification documentation for your specific installation zone. Contact Konmask for certified Ex-rated variants if required.
Q: What is the lead time for this part?
A: In-stock units ship within 1–3 business days. Out-of-stock lead time is typically 2–4 weeks. Contact us for real-time availability.
Q: Do you provide installation support?
A: Yes. Our engineering team can provide gap-setting guidance, wiring diagrams, and commissioning checklists upon request.
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