Product Brief: Bently Nevada 330171-00-08-10-02-00 (3300 XL 8mm Proximity Probe System)
The 330171-00-08-10-02-00 is a complete 3300 XL 8mm Proximity Probe System from Bently Nevada (GE Measurement & Control). This part number represents a fully configured probe system including the probe tip, cable, and Proximitor (driver/oscillator/demodulator) as a matched set. It is used for non-contact eddy current measurement of shaft relative vibration, axial (thrust) position, eccentricity, and differential expansion on rotating machinery.
This system is the industry standard for API 670 compliant machinery protection and is widely used in critical turbomachinery (turbines, compressors, generators).
Part Number Breakdown
| Position | Code | Meaning |
|---|---|---|
| 330171 | - | 3300 XL 8mm Probe System |
| 00 | - | Standard probe tip (unthreaded, 8mm diameter) |
| 08 | - | Probe length: 80 mm (probe case length) |
| 10 | - | Cable length: 10.0 meters (32.8 feet) |
| 02 | - | Connector type: BNC connector (Proximitor end) |
| 00 | - | Standard options (no special coatings or certifications) |
Key Features
Complete system – probe, integral cable, and Proximitor (driver) matched and calibrated.
3300 XL series – improved linear range, temperature stability, and interchangeability.
Supplied as a matched set – factory calibrated for optimal performance.
Non-contact eddy current principle – measures displacement without touching the shaft.
Sealed, hermetically sealed probe tip – oil, dirt, and moisture resistant.
Compatible with 3500, 1900, and standalone monitoring systems.
Parameters (Table)
| Parameter | Specification |
|---|---|
| Model Series | 3300 XL (Extra Long range) |
| Part Number | 330171-00-08-10-02-00 |
| Product Type | Complete 8mm proximity probe system (probe + cable + Proximitor) |
| System Components | Probe tip + integral cable + Proximitor (driver) |
| Probe Diameter | 8 mm (0.31 in) |
| Probe Tip Material | PEEK (polyetheretherketone) – hermetically sealed |
| Probe Case Length (suffix 08) | 80 mm (3.15 in) – from probe tip to cable exit |
| Total Cable Length (suffix 10) | 10.0 meters (32.8 ft) – integral, non-extensible |
| Probe Weight (approx.) | 0.10 kg (0.22 lb) – probe only |
| Cable Weight (approx.) | 0.06 kg/m (0.04 lb/ft) – cable only ≈ 0.6 kg (1.32 lb) for 10m |
| Proximitor Weight (approx.) | 0.20 kg (0.44 lb) |
| Total System Weight (approx.) | 0.90 kg (2.0 lb) |
| Connector Type (suffix 02) | BNC male (connects to Proximitor input) |
| Proximitor Model | 3300 XL Proximitor (built-in oscillator, demodulator) |
| Proximitor Output Signal | -0.8 VDC to -22 VDC (proportional to gap) |
| Linear Range | 0.25 mm to 2.29 mm (10 mils to 90 mils) |
| Sensitivity | 7.87 mV/µm (200 mV/mil) ± 5% |
| Target Material | AISI 4140 steel (other materials derate linearly) |
| Frequency Response | 0 to 10 kHz (-3 dB) |
| Supply Voltage (Proximitor) | -17.5 VDC to -26 VDC (nominal -24 VDC) |
| Supply Current | 12 mA typical |
| Operating Temperature (Probe) | -51°C to +177°C (-60°F to +350°F) |
| Operating Temperature (Proximitor) | -35°C to +85°C (-31°F to +185°F) |
| Storage Temperature | -51°C to +177°C (-60°F to +350°F) |
| Enclosure Rating (Proximitor) | IP67 (when properly sealed) |
| Approvals | CE, CSA, ATEX (with IS barriers) |
Application Scenarios (use cases)
| Application Area | Description |
|---|---|
| Steam Turbine Radial Vibration | 8mm probes mounted in bearing housing measure shaft relative vibration (X and Y orientation). |
| Gas Turbine Axial (Thrust) Position | Probe mounted against thrust collar measures axial movement of compressor/turbine rotor. |
| Centrifugal Compressor Shaft Vibration | API 670 compliant monitoring of high-speed compressor shafts (typical 5–50 kHz range). |
| Generator Rotor Vibration | Measures vibration at generator bearings; high-temperature rating (177°C) suitable for generator ends. |
| Hydro Turbine Eccentricity (Slow Roll) | Low-speed shaft runout measurement during startup or coast-down. |
| Turboexpander / LNG Compressor | Compact probe system for cryogenic or high-speed expander trains. |
| Large Motor Sleeve Bearings | Used where non-contact shaft displacement monitoring is required for large induction or synchronous motors. |
| Test Stand / Rotor Dynamics Lab | Temporary or permanent installation on research test rigs for bearing, seal, or rotor studies. |
Notes
This is a complete system – no additional components needed to connect to a compatible monitor (e.g., 3500/40, 3500/42, 1900/65A, or 3300 series rack).
The 10 meter cable length is integral and cannot be extended without signal degradation. For longer runs, use extension cable 330190-X0-00 (up to 305 m total).
The BNC connector (suffix 02) connects directly to standard 3300 XL Proximitor input. For terminal block connections, use suffix 03 (not this part number).
Not intrinsically safe by itself. For hazardous area (Class I, Div 1/Zone 1) installations, use Bently Nevada IS barrier (e.g., 3300 XL IS system) or 3500/42M monitor with internal barriers.
Target material sensitivity – standard calibration is for AISI 4140 steel. For other materials (stainless, titanium, aluminum), use material correction factor or order custom calibration.
Probe tip clearance – static gap should be set at mid-range (approximately -10 VDC output) for maximum dynamic range.
Global direct procurement guarantee
All products are purchased directly from overseas original manufacturers or authorized channels, 100% guaranteed genuine quality, sufficient spot inventory, and comprehensive model coverage
Quality Commitment
Each product has been tested by our technicians, providing 12-month long warranty, worry-free after-sales
Flexible procurement plan
- Bulk order enjoys Friendship discount (2 pieces or more can be applied)
- Long-term cooperative customers can apply for priority supply
Full service support
7×24 hours technical consultation, from selection guidance to installation and commissioning to provide full life cycle service (paid)
Why do so many customers choose us?
On the basis of the same quality, we provide:
- More competitive price system
- Faster logistics response
- More complete technical support (free product technical documentation)
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