The Bently Nevada 330710-000-060-10-02-00 is a cornerstone of the 3300 XL 11mm Proximity Transducer System, engineered specifically for the demanding environment of large rotating machinery. This non-contact eddy current sensor delivers unparalleled accuracy in measuring vibration, axial position, and speed on critical assets such as steam turbines, centrifugal compressors, and large motors. By maintaining a microscopic gap between the probe tip and the target shaft, the system eliminates mechanical wear while capturing high-frequency data essential for early fault detection.
The 11mm probe series offers a significantly wider linear range compared to standard 8mm probes, making it the ideal choice for applications involving large thermal expansion or significant axial float. This sensor acts as the "eyes" of your TSI (Turbine Supervisory Instrumentation) system, ensuring that microscopic shaft movements are translated into actionable electronic signals to prevent catastrophic equipment failure.
The 330710 series utilizes a multi-segment suffix logic to define specific hardware characteristics. Here is the breakdown for the -000-060-10-02-00 configuration:
This value specifies a 0.0 inch unthreaded length. The probe body features full threading, allowing for maximum flexibility when adjusting the mounting depth within the bracket or housing.
This indicates a total case length of 6.0 inches. This length provides the necessary reach to penetrate thick machinery casings or bearing housings to access the shaft surface.
This suffix designates a 1.0 meter (3.3 feet) integral cable length. This short lead connects directly to an extension cable or a Proximitor® sensor located in a nearby junction box.
The "-02" specifies Standard Polyfluoroethylene (FP) insulated cable with a miniature coaxial ClickLoc connector. This configuration includes a connector protector, shielding the electrical interface from moisture, oil, and industrial contaminants.
This signifies No Approvals (Standard) required. It is suitable for general-purpose industrial environments where explosion-proof or intrinsically safe certifications are not mandated by local regulations.
| Parameter | Specification |
| Probe Diameter | 11 mm (0.43 in) |
| Linear Range | 4.0 mm (160 mils) |
| Standard Scale Factor | 3.94 V/mm (100 mV/mil) ±10% |
| Operating Temperature | -51 °C to +177 °C (-60 °F to +350 °F) |
| Interchangeability | Fully interchangeable with other 3300 XL 11mm components |
| Pull Strength | 330 N (75 lbf) Probe-to-Cable |
| Pressure Rating | Up to 70 psi (4.8 bar) at the tip |
| Material | Polyphenylene sulfide (PPS) tip; Stainless steel body |
Precise installation is paramount for the E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) of your monitoring system.
To achieve the optimal linear range, engineers must set the gap using the DC Gap Voltage. For the 3300 XL 11mm system, the center of the linear range typically corresponds to -10.0 VDC. Rotate the probe in the bracket until the Proximitor output reaches this value before tightening the locknut.
Always use the ClickLoc connectors properly. These gold-plated brass connectors require a specific "click" to ensure a low-resistance electrical bond. Never use pliers to tighten the connectors; finger-tight plus the locking mechanism is sufficient to resist vibration.
Ensure the cable maintains a minimum bend radius of 25.4 mm (1.0 in). Use the pre-drilled safety wire holes in the locknut to prevent the probe from backing out due to high-frequency machine vibration.
The 330710-000-060-10-02-00 excels in harsh chemical environments. The patented TipLoc molding method creates a molecular bond between the probe tip and the stainless steel body, preventing the tip from detaching under thermal cycling. Simultaneously, the CableLoc design ensures the cable remains attached even if subjected to high-stress maintenance activity.
Because it belongs to the 3300 XL family, this probe demonstrates exceptional thermal stability. It maintains accuracy across a wide temperature gradient, which is critical for turbines that operate with significant heat variance between startup and full-load states. The system's seamless integration with Bently Nevada 3500 racks ensures a plug-and-play experience for modern industrial plants.
Q1: How do I know if the 11mm probe is required instead of the 8mm version?
A1: The 11mm probe is generally used when the expected shaft movement (axial float) or thermal expansion exceeds the 2.0mm (80 mil) linear range of the 8mm probe. The 11mm probe doubles that range to 4.0mm (160 mils).
Q2: What is the significance of the "ClickLoc" connector?
A2: ClickLoc connectors prevent signal loss caused by vibration-induced loosening. They provide a secure, gold-plated connection that resists corrosion and ensures the 100 mV/mil scale factor remains constant over years of service.
Q3: Is the 330710-000-060-10-02-00 compatible with older 3300 (non-XL) systems?
A3: While 3300 XL components are designed to be backwards compatible, it is highly recommended to use the complete 3300 XL 11mm system (Probe, Extension Cable, and Proximitor) to ensure maximum linearity and temperature stability.
Q4: Can this probe be used in submerged oil applications?
A4: Yes. The probe body and tip are designed to be leak-resistant. However, if oil ingress through the cable is a concern, we recommend specifying the FluidLoc cable option to prevent siphoning.
