Bently Nevada 31000-28-10-00-133-03-02 – Proximity Probe Housing Assembly | 3300 XL Series Platform
Engineering Background
The Bently Nevada 3300 Series is the industry benchmark for non-contacting eddy-current measurement systems, deployed across rotating machinery in power generation, oil & gas, petrochemical, and heavy industrial environments. The housing assembly is the mechanical backbone of the probe installation — it determines probe positioning accuracy, environmental sealing integrity, and long-term signal stability.
Product Positioning
Part number 31000-28-10-00-133-03-02 is a factory-configured Proximity Probe Housing Assembly engineered for precise radial or axial probe mounting within the 3300 XL ecosystem. It is designed for direct OEM replacement or new-installation use, maintaining full compatibility with Bently Nevada 3300 series monitors, extension cables, and signal conditioning modules. Konmask.com supplies this component as a verified, traceable unit sourced through authorized industrial channels.
Complete Technical Specifications
| Part Number | 31000-28-10-00-133-03-02 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 XL Proximity Transducer System |
| Component Type | Proximity Probe Housing Assembly |
| Measurement Principle | Eddy-Current (Non-Contacting) |
| Probe Thread Size | M10 × 1 (standard 3300 series) |
| Housing Material | 316 Stainless Steel (corrosion-resistant) |
| Sealing / IP Rating | IP67 (dust-tight, immersion-resistant) |
| Operating Temperature | –40 °C to +120 °C |
| Mounting Configuration | Radial / Axial (application-dependent) |
| Cable Entry | Compatible with 3300 XL extension cables |
| Approximate Weight | 1,200 g (packaged) |
| Compliance | CE, RoHS; meets API 670 installation guidelines |
Proven Application Environments
- Steam & Gas Turbines — shaft radial vibration and axial position monitoring
- Centrifugal Compressors — rotor dynamic displacement measurement
- Pumps & Fans — bearing journal orbit analysis
- Gearboxes — gear mesh frequency and shaft runout detection
- Electric Motors (HV) — air-gap and eccentricity monitoring
- Hydro Turbines — thrust and guide bearing displacement
- Reciprocating Compressors — crosshead and crankshaft position
Engineering Advantages
- Zero-Contact Measurement — no mechanical wear, no lubrication required, indefinite service life under normal conditions
- High-Resolution Output — linear range optimized for 3300 XL signal conditioning, delivering ±0.5% full-scale accuracy
- Robust Mechanical Design — 316 SS housing withstands aggressive process fluids, steam environments, and high-vibration installations
- Direct OEM Replacement — identical form, fit, and function to factory-installed units; no recalibration of monitor required
- Plug-and-Play Integration — mates directly with 3300 XL extension cables and 3500/3300 series rack monitors
- API 670 Compliant Installation — supports machinery protection system compliance for critical rotating equipment
System Architecture & Signal Flow
The 3300 XL proximity transducer system operates as a three-component chain:
- Proximity Probe (Housing Assembly) — generates the eddy-current field; housing positions and protects the probe tip at the correct gap distance from the target shaft.
- Extension Cable — transmits the raw oscillator signal from the probe to the Proximitor® sensor; length must be matched to the probe/cable/Proximitor system calibration.
- Proximitor® Sensor / Monitor Rack — conditions the signal, outputs –24 VDC bias voltage, and converts gap distance to a calibrated voltage (typically –200 mV/mil or –7.87 V/mm).
The housing assembly (31000-28-10-00-133-03-02) is the field-installed mechanical element. Correct installation gap (typically 1.0–1.5 mm for standard 3300 XL probes) is critical for linear operation and must be verified with a calibrated gap meter during commissioning.
Sourcing & Quality Verification
Konmask.com applies a 4-step verification protocol to all Bently Nevada components:
- Documentation Review — OEM datasheet cross-reference, part number matrix validation, and revision-level confirmation.
- Physical Inspection — housing thread integrity, connector pin condition, label legibility, and packaging seal verification.
- Functional Pre-Check — where applicable, coil continuity and oscillator response baseline check prior to dispatch.
- Traceability Record — each unit ships with a sourcing traceability document available on request for audit purposes.
Procurement Process
- Submit your RFQ via [email protected] with part number, required quantity, and delivery timeline.
- Receive a formal quotation with lead time, unit price, and shipping options within 24 business hours.
- Confirm purchase order — we accept T/T bank transfer, PayPal, and major credit cards.
- Dispatch with full tracking; express air freight available for urgent MRO requirements.
- Post-delivery technical support available for installation and commissioning queries.
Technical FAQ
Q: Is this part compatible with the Bently Nevada 3500 rack system?
A: Yes. The 3300 XL probe system is fully compatible with 3500 series monitor racks when used with the correct Proximitor® sensor and matched extension cable.
Q: What is the standard linear range for this probe?
A: The 3300 XL system is calibrated for a linear range of approximately 0.25 mm to 2.25 mm (10–90 mil) gap, with the nominal operating point at 1.0–1.5 mm.
Q: Can I use a different brand extension cable with this housing assembly?
A: Not recommended. The probe, extension cable, and Proximitor® sensor are a calibrated system. Mixing brands invalidates the system calibration and may trigger false alarms or missed trips.
Q: Do you provide a certificate of conformance?
A: Yes. A certificate of conformance and sourcing traceability document are available upon request for all orders.
Q: What is the lead time for this part?
A: Standard stock items ship within 3–5 business days. Non-stock items typically require 2–4 weeks. Contact us for current availability.
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