Product Core Brief
- Model: 330103-00-03-05-02-05
- Brand: Bently Nevada (Baker Hughes)
- Series: 3300 XL 8mm Proximity Transducer System
- Core Function: 8mm eddy current proximity probe for non-contact measurement of shaft vibration, displacement, axial position, differential expansion, eccentricity, and Keyphasor reference.
- Product Type: 3300 XL 8mm Proximity Probe
- Key Specs: 30mm unthreaded length | 30mm total body length | 5.0m FluidLoc cable | ClickLoc connector | multi-agency approvals (05) | M10×1 thread
- Condition: New Surplus / Factory New (confirm system length, cable type, and approval code before procurement)
Product Introduction
The Bently Nevada 330103-00-03-05-02-05 is an 8mm proximity probe from the 3300 XL family, widely used for continuous monitoring and mechanical protection of critical rotating equipment such as steam turbines, gas turbines, compressors, generators, and fans.
This probe generates a high-frequency electromagnetic field at its tip. When positioned near a conductive shaft surface, eddy currents are induced, and the resulting change in coil impedance is converted into a DC voltage signal proportional to the gap between the probe tip and the target. This enables precise measurement of both static displacement and dynamic vibration without physical contact.
The 3300 XL 8mm system is designed to work with 3300 XL extension cables and 3300 XL Proximitor Sensors (such as 330180-50-00), and it interfaces with Bently Nevada 3500 monitoring modules including 3500/40M, 3500/42M, 3500/45, and 3500/25. The system is backward compatible with earlier 3300 series 5mm and 8mm components and meets API 670 requirements for mechanical vibration monitoring.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | 3300 XL 8mm Proximity Probe |
| Brand | Bently Nevada (Baker Hughes) |
| Model | 330103-00-03-05-02-05 |
| Probe Diameter | 8mm |
| Thread | M10×1 |
| Unthreaded Length | 30mm (code 03) |
| Body Length | 30mm (code 03) |
| Cable Length | 5.0m (code 05) |
| Cable/Connector Type | FluidLoc cable with ClickLoc connector (code 05) |
| Approvals | Multi-agency / multiple certification approvals (code 05) |
| Sensitivity | 7.87 V/mm (200 mV/mil) typical for 8mm system |
| Linear Range | Approximately 0.25–2.3 mm (10–90 mils) for 8mm probe |
| Frequency Response | 0–10 kHz |
| Compatible Proximitor | 330180-50-00 / 330180-51-00 |
| Compatible Monitors | 3500/40M, 3500/42M, 3500/45, 3500/25 |
Exact system length, cable construction, approval certificates, and compatible proximitor should be verified against the product label and Bently Nevada documentation.
Quality Control Process (DYNAMIC GENERATION)
- Part-number verification: Confirm 330103-00-03-05-02-05 on the probe label or packaging.
- Visual inspection: Check probe tip, PPS encapsulation, stainless steel body, cable jacket, and ClickLoc connector for damage, cracks, or corrosion.
- Cable integrity check: Inspect the 5m FluidLoc cable for cuts, crushing, moisture ingress, or connector pin damage.
- Dimensional verification: Confirm unthreaded length and body length match the 03/03 configuration.
- Electrical verification: Test probe continuity and insulation resistance; verify output with a compatible proximitor if test equipment is available.
- System compatibility check: Confirm the probe matches the installed extension cable length, proximitor model, and 3500 monitor configuration.
Replacement Pitfall Guide (DYNAMIC GENERATION)
❗ Do not confuse the probe with the proximitor or monitor module. 330103-00-03-05-02-05 is the proximity probe only. It is not a 330180 proximitor, not a 3500/40M monitor, and not a 3500/42M module.
❗ Match the full order code. The 03-03-05-02-05 suffix defines unthreaded length, body length, cable length, cable type, and approvals. Substituting a different code such as 00-05-10-02-00 may change mechanical fit, cable length, or certification status.
❗ Verify system length. The total system length must include probe, extension cable, and cable to proximitor. Mismatched lengths can degrade linearity and measurement accuracy.
❗ Do not mix XL and non-XL components without verification. Although 3300 XL 8mm probes are backward compatible with many 3300 components, the full system should be validated against Bently Nevada interchangeability rules.
❗ Confirm FluidLoc requirement. Code 05 indicates FluidLoc cable construction. Replacing it with standard cable may affect environmental sealing and approval compliance.
❗ Treat as a protection-critical sensor. Incorrect gap setting, damaged cable, or wrong proximitor pairing can cause false alarms or missed trips on turbines and compressors.
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| Bently Nevada 330103-00-03-05-02-05 | Same 330103-00-03-05-02-05 probe | Direct | Match full order code and system length. |
| Bently Nevada 330103-00-03-05-02-05 | Other 330103 variants | Needs Verification | Confirm unthreaded length, cable length, cable type, and approvals. |
| Bently Nevada 330103-00-03-05-02-05 | 3300 XL 8mm probe + 330180 proximitor | System match | Must pair with correct extension cable and proximitor. |
| Bently Nevada 330103-00-03-05-02-05 | 3300 XL 11mm or 5mm probe | Not direct | Different linear range, sensitivity, and mounting requirements. |
Benchmarks:
- 3300 XL 8mm proximity probe for eddy current vibration and displacement measurement.
- 30mm unthreaded length, 30mm body length, 5.0m FluidLoc cable, ClickLoc connector, multi-agency approvals.
- Compatible with 3300 XL extension cables, 330180 proximitor sensors, and 3500/40M, 3500/42M, 3500/45, and 3500/25 monitors.
- Suitable for radial vibration, axial position, differential expansion, eccentricity, and Keyphasor applications.
- Third-party listings that describe this part number as a 3500 monitor module or 4-channel displacement monitor are incorrect; the 330103 prefix identifies a proximity probe, not a rack-mounted monitor.
