Product Brief: Bently Nevada 330171-00-09-10-02-00 (3300 XL 8mm Proximity Probe System)
The 330171-00-09-10-02-00 is a complete 3300 XL 8mm Proximity Probe System from Bently Nevada (GE Measurement & Control). This configuration features a standard straight probe tip with an ultra-short 9 mm case length – the shortest case available in the 3300 XL series. It is designed for extreme space-constrained installations where even the standard 80 mm or short 60 mm cases cannot fit. The system includes the probe tip, integral cable, and Proximitor (driver/conditioner) as a factory-matched set.
This system measures shaft relative vibration, axial (thrust) position, eccentricity, and differential expansion on rotating machinery with extremely limited access or very thin bearing housings.
Part Number Breakdown
| Position | Code | Meaning |
|---|---|---|
| 330171 | - | 3300 XL 8mm Probe System (straight tip) |
| 00 | - | Standard probe tip (no special coating) |
| 09 | - | Probe case length: 9 mm (0.35 in) – ultra-short |
| 10 | - | Cable length: 10.0 meters (32.8 feet) |
| 02 | - | Connector type: BNC connector (Proximitor end) |
| 00 | - | Standard options (no special certifications) |
Key Features
Straight probe tip – standard orientation.
Ultra-short case length (9 mm) – for extreme space constraints.
Complete system – probe, integral cable, and Proximitor matched and calibrated.
3300 XL series – extended linear range and improved temperature stability.
Hermetically sealed probe tip – resistant to oil, dirt, and moisture.
Non-contact eddy current principle – measures displacement without shaft contact.
Long cable length (10 m) – allows Proximitor placement in remote junction boxes.
Parameters (Table)
| Parameter | Specification |
|---|---|
| Model Series | 3300 XL (Extra Long range) |
| Part Number | 330171-00-09-10-02-00 |
| Product Type | Complete 8mm proximity probe system (straight tip, ultra-short case) |
| System Components | Straight probe tip + integral cable + Proximitor (driver) |
| Probe Angle | Straight (0°) – coaxial with probe axis |
| Probe Diameter | 8 mm (0.31 in) |
| Probe Tip Material | PEEK (polyetheretherketone) – hermetically sealed |
| Probe Case Length (suffix 09) | 9 mm (0.35 in) – from probe tip to cable exit (ultra-short) |
| Total Cable Length (suffix 10) | 10.0 meters (32.8 ft) – integral, non-extensible |
| Probe Weight (approx.) | 0.07 kg (0.15 lb) – probe only |
| Cable Weight (approx.) | 0.06 kg/m (0.04 lb/ft) – cable ≈ 0.60 kg (1.32 lb) for 10m |
| Proximitor Weight (approx.) | 0.20 kg (0.44 lb) |
| Total System Weight (approx.) | 0.87 kg (1.92 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 (standard calibration) |
| 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) |
| Minimum Bend Radius (cable) | 25 mm (1.0 in) – dynamic; 13 mm (0.5 in) – static |
| Enclosure Rating (Proximitor) | IP67 (when properly sealed) |
| Approvals | CE, CSA, ATEX (with IS barriers) |
Application Scenarios (use cases)
| Application Area | Description |
|---|---|
| Steam Turbine (Extremely Thin Bearing Housing) | Ultra-short 9mm case allows mounting when housing wall thickness is minimal (e.g., retrofits into existing drilled ports without counterboring). |
| Gas Turbine Compressor Section (Space-Limited) | Fits between compressor stages where axial clearance is less than 10mm – critical for retrofitting probes into existing machinery. |
| Centrifugal Compressor (Micro-turbine / High-Speed) | Small frame compressors with very limited probe mounting depth – 9mm case fits without housing modification. |
| Generator End Windings (Tight Bundle) | Mounts between stator bars or cooling ducts where even 24mm or 60mm cases cannot pass. |
| Turbocharger / Supercharger Bearing | Extremely compact turbocharger housings require minimal probe protrusion – 9mm case is often the only option. |
| Hydro Turbine Thrust Bearing (Shallow Pocket) | Oil bath thrust bearing with shallow mounting pocket – 9mm case ensures proper target gap without bottoming out. |
| High-Speed Gearbox (Pinion Bearing) | Monitors pinion shaft vibration where bearing housing bore is extremely shallow (less than 15mm depth). |
| Test Stand / Prototype Rotor Rig | Research rigs with complex, tight geometries – 9mm case allows installation in areas inaccessible to longer probes. |
Dimensional Comparison (Straight Probe Case Lengths)
| Probe Type | Case Length | Typical Use |
|---|---|---|
| Standard straight (330171-00-80) | 80 mm | General purpose, ample clearance |
| Short straight (330171-00-60) | 60 mm | Moderate space constraints |
| Ultra-short straight (330171-00-09) | 9 mm | Extreme space constraints (thinnest available) |
Notes
9 mm case length is the shortest available in the 3300 XL series. Ensure the probe tip can still reach the target shaft surface at proper gap (approx. 1.27 mm / 50 mils static). Total required clearance = case length + gap + mounting hardware thickness.
Straight probe – cable exits axially from the rear of the probe. For right-angle cable exit in tight radial spaces, order 330101-00-09-10-02-00 (right-angle version with 9mm case).
10 meter cable length provides flexibility to place the Proximitor in a remote junction box, away from high-temperature or hazardous areas.
Complete system – includes the Proximitor (driver). No additional components are needed to connect to a compatible monitor (e.g., 3500/40, 3500/42, 1900/65A).
The BNC connector (suffix 02) connects directly to standard 3300 XL Proximitor input. For terminal block connections, order suffix 03.
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.
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