Description
The Bently Nevada 330103-00-14-10-02-CN belongs to the 3300 XL 8mm Proximity Transducer System series. Operating on the eddy-current principle, this probe measures both static (position/thrust) and dynamic (radial vibration) displacements on fluid-film bearing machinery. The system generates an analog voltage output directly proportional to the gap distance between the probe tip and the observed conductive shaft surface (typically AISI 4140 steel).
Technical Specifications
| Parameter | Value / Specification |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Model Number | 330103-00-14-10-02-CN |
| Transducer Type | Non-Contact Eddy-Current Proximity Probe |
| Tip Diameter | 8 mm |
| Thread Type | Metric M10 x 1 (Without armor casing) |
| System Linear Range | 2.0 mm (80 mils), typically from 0.25 to 2.3 mm |
| Nominal Sensitivity | 7.87 V/mm (200 mV/mil) when paired with 3300 XL Proximitor |
| Frequency Response | 0 to 6.5 kHz (+0, −3 dB deviation limit) |
| Tip Material | Polyphenylene sulfide (PPS) |
| Case Material | AISI 303 or 304 Stainless Steel (SST) |
| Connector Type | Gold-plated brass ClickLoc miniature coaxial interface |
| Operating Temperature | −35 to +177°C (−31 to +350°F) for the probe tip |
Part Number Breakdown & Engineering Configurations
The suffix sequence definitions for 330103-00-14-10-02-CN encompass the following mechanical and regional configurations:
- Unthreaded Length Option (-00): 0 mm (0.0 inches) unthreaded section. The entire length of the case is threaded.
- Overall Case Length Option (-14): 140 mm total case length.
- Total Length Option (-10): 1.0 meter (3.3 feet) integrated probe cable length.
- Connector & Cable Option (-02): Equipped with a miniature coaxial ClickLoc connector on a standard, unarmored 75 \Omega triaxial cable.
- Agency Approval Option (-CN): Certified under specific Chinese local market compliance standards, including NEPSI hazardous area explosion-proof standards and China RoHS metrics.
Commercial and Logistics Terms
- Condition: New Original (Factory Sealed), complete with factory calibration data labels.
- Availability: Ready for prompt shipment. Technical order processing and serial log recording span 1 to 2 business days.
- Shipping & Lead Time: Dispatched via global priority services (DHL, FedEx, UPS). Normal delivery timeline is 3 to 5 business days depending on localized international destination procedures.
- Warranty: 12-month industrial-grade replacement warranty against operational defects or linear drift outside factory parameters.
- Pricing Notice: Procurement costs are driven by spot market component availability. Please contact our industrial parts coordination desk for a binding, itemized quote.
Engineering Context & Installation Notes
Target Material and Calibration Accuracy
The standard system is factory calibrated for an AISI 4140 steel target. If your rotating machine shaft uses a different alloy (e.g., stainless steel variants or high-chrome components), the eddy-current penetration depth shifts, which alters the scale factor from the standard 200 mV/mil specification. Cross-calibration curves or customized cross-material scaling adjustments inside the monitoring rack (e.g., Bently Nevada 3500/42M) must be performed if non-4140 target parameters exist.
Cable Length Matching and Tuning
The total electrical length of the transducer path must equal either 5.0 meters or 9.0 meters depending on the Proximitor sensor’s configuration.
Important: Since this probe possesses a -10 (1.0 meter) integral length, you must pair it with a 4.0-meter extension cable to construct a functional 5-meter loop system, or an 8.0-meter extension cable to form a 9-meter loop system. Mismatching loop lengths compromises linear range accuracy and introduces scaling errors.
Mechanical Installation and Torquing
When installing the M10 case into the internal bearing housing brackets, use care to avoid over-tightening the threads, which can damage the case structure or twist the integral cable core. Connectors should be tightened finger-tight until the ClickLoc audible “click” is felt. Do not utilize pliers or metallic wrenches on the gold-plated coaxial connectors.
Frequently Asked Questions
Can this probe be run inside conduits alongside high-voltage motor lines?
No. To prevent radio frequency interference (RFI) or electromagnetic noise injection into the low-voltage sensor return loop, route the triaxial probe and extension cables within isolated, dedicated metal conduits away from high-power phase conductors or variable frequency drive (VFD) output runs.
What is the recommended gap setting for standard radial vibration monitoring?
For typical radial shaft monitoring, the probe gap is usually set to approximately −9.0 V DC (measured across the Proximitor output terminals), which corresponds to roughly a 1.27 mm (50 mils) spatial clearance between the probe face and the target. This positions the static operating centerpoint directly in the middle of the probe’s 80-mil linear operational window.
What does a continuous −24 V DC rail voltage indicator on the monitor mean?
A constant −24 V DC reading (saturated fully to the power supply rail limits) usually indicates an open-circuit fault in the cable network. This is commonly caused by a disconnected ClickLoc junction point, a fractured inner signal core, or a severed extension line. Use a digital multimeter to check the core resistance (R_{core}) of the isolated cable path to pinpoint the break.
