Product Brief: Bently Nevada 330101-00-24-05-02-00 (3300 XL 8mm Right-Angle Probe System)
The 330101-00-24-05-02-00 is a complete 3300 XL 8mm Proximity Probe System from Bently Nevada (GE Measurement & Control). This specific configuration features a right-angle (90°) probe tip design with a short 24 mm case length – one of the shortest available probe cases in the 3300 XL series. It is used in extreme space-constrained installations where standard or even standard right-angle probes 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 very limited access or tight bearing housing clearances.
Part Number Breakdown
| Position | Code | Meaning |
|---|---|---|
| 330101 | - | 3300 XL 8mm Probe System (right-angle tip) |
| 00 | - | Standard probe tip (no special coating) |
| 24 | - | Probe case length: 24 mm (0.94 in) – ultra-short |
| 05 | - | Cable length: 5.0 meters (16.4 feet) |
| 02 | - | Connector type: BNC connector (Proximitor end) |
| 00 | - | Standard options (no special certifications) |
Key Features
Right-angle (90°) probe tip – allows mounting parallel to shaft axis.
Ultra-short case length (24 mm) – for extremely tight bearing housings.
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.
Parameters (Table)
| Parameter | Specification |
|---|---|
| Model Series | 3300 XL (Extra Long range) |
| Part Number | 330101-00-24-05-02-00 |
| Product Type | Complete 8mm proximity probe system with right-angle tip (ultra-short case) |
| System Components | Right-angle probe tip + integral cable + Proximitor (driver) |
| Probe Angle | 90° (right-angle cable exit) |
| Probe Diameter | 8 mm (0.31 in) |
| Probe Tip Material | PEEK (polyetheretherketone) – hermetically sealed |
| Probe Case Length (suffix 24) | 24 mm (0.94 in) – from probe tip to cable exit (ultra-short) |
| Total Cable Length (suffix 05) | 5.0 meters (16.4 ft) – integral, non-extensible |
| Probe Weight (approx.) | 0.08 kg (0.18 lb) – probe only |
| Cable Weight (approx.) | 0.06 kg/m (0.04 lb/ft) – cable ≈ 0.30 kg (0.66 lb) for 5m |
| Proximitor Weight (approx.) | 0.20 kg (0.44 lb) |
| Total System Weight (approx.) | 0.58 kg (1.28 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 (Tight Bearing Housing) | Ultra-short 24mm case allows mounting when housing depth is minimal (e.g., retrofits, small turbines with limited access). |
| Gas Turbine Compressor Section (Retrofit) | Replaces older probes in tight mounting bosses where longer cases contact oil splash baffles or bolt bosses. |
| Centrifugal Compressor (Small Frame) | Compact high-speed compressor with very limited probe mounting depth – 24mm case fits without housing modification. |
| Generator End Windings | Mounts between stator bars or cooling ducts where standard 80mm or even 60mm right-angle probes cannot fit. |
| Turboexpander (Cryogenic / LNG) | Extremely tight expander housing – short case minimizes interference with rotating components at low temperatures. |
| Hydro Turbine Thrust Bearing (Limited Access) | Ultra-short probe fits inside oil bath thrust bearing housing without obstructing oil flow paths. |
| High-Speed Gearbox Pinion Bearing | Monitors pinion shaft vibration where bearing housing bore is shallow – 24mm case is critical for clearance. |
| Test Stand / Bearing Development Rig | Prototype rigs with complex housing geometries – short case allows installation in areas inaccessible to longer probes. |
Dimensional Comparison (Probe Case Lengths)
| Probe Type | Case Length | Typical Use |
|---|---|---|
| Standard straight (330171) | 80 mm | General purpose, ample clearance |
| Short straight (330171-00-60) | 60 mm | Moderate space constraints |
| Standard right-angle (330101-00-60) | 60 mm | Right-angle, moderate space |
| Ultra-short right-angle (330101-00-24) | 24 mm | Extreme space constraints |
Notes
24 mm case length is one of 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).
Right-angle probe – the integral cable exits at 90° from the probe tip axis. This is not a straight probe.
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).
5.0 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, 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.
Target material calibration is for AISI 4140 steel. For other materials, consult Bently Nevada for correction factors.
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