Description

Bently Nevada 330709-000-060-10-02-00 3300 XL 8mm Reverse Mount Proximity Probe

The Bently Nevada 330709-000-060-10-02-00 is a high-performance non-contacting sensor belonging to the 3300 XL 8mm Proximity Transducer System. This specific reverse mount configuration allows technicians to install or replace the probe from the outside of the machine housing, making it an essential component for machinery with limited internal access. By utilizing eddy current technology, the sensor provides precise measurements of shaft vibration and axial position, which are critical for the health monitoring and protection of high-speed rotating assets such as turbines, compressors, and industrial pumps.

Technical Performance and Robust Design

This probe features a rugged 3/8-24 UNF thread housing constructed from high-grade stainless steel to resist corrosion and mechanical stress. The reverse mount architecture simplifies maintenance in complex installations, while the integrated coaxial cable ensures low-loss signal transmission to the Proximitor sensor. Engineered for reliability, the 330709-000-060-10-02-00 maintains exceptional linearity and temperature stability. Its IP68-rated seal ensures the sensor remains fully protected against dust and continuous submersion in water or industrial lubricants, making it suitable for the most demanding plant environments.

Key Technical Specifications

• Manufacturer: Bently Nevada (Baker Hughes)
• Model Number: 330709-000-060-10-02-00
• Transducer System: 3300 XL 8mm
• Mounting Type: Reverse Mount (3/8-24 UNF threads)
• Total Length: 6.0 meters (19.7 feet)
• Operating Temperature: –40 °C to +177 °C (–40 °F to +351 °F)
• Pressure Rating: Up to 100 bar (1,450 psi)
• Accuracy: ± 0.05% of full scale at room temperature
• Ingress Protection: IP68 (Dust-tight and waterproof)
• Construction: Stainless steel case with polyphenylene sulfide (PPS) tip
• Product Origin: USA

FAQ

What is the primary advantage of the reverse mount (3/8-24 UNF) housing?

The reverse mount design allows the probe to be installed through the machine casing from the outside. As a result, this simplifies the gapping process and sensor replacement in applications where the target area is inaccessible from within the machine during operation. Furthermore, this configuration minimizes maintenance downtime because technicians do not need to disassemble internal machine housings to reach the sensor.

How does the 6.0-meter cable length impact system configuration?

The 3300 XL system is designed for a specific total electrical length, which is usually 5 or 9 meters. Consequently, a 6.0-meter probe must be paired with the correct 3.0-meter extension cable to reach a 9-meter system calibration. By doing so, you ensure the Proximitor provides an accurate voltage-to-distance output. In addition, using an incorrect cable length combination will lead to significant measurement errors and potentially trigger false alarms.

What environments are suitable for the IP68 and 100 bar ratings?

These ratings indicate that the probe can withstand high-pressure submerged environments, such as those found in pressurized oil-film bearings or deep-sea pumping equipment. In particular, the IP68 certification ensures that no fluid enters the sensor housing, while the 100 bar rating allows it to operate under extreme force without mechanical failure. Accordingly, the probe remains reliable even when exposed to continuous moisture or corrosive industrial lubricants.

Is it possible to use this probe with non-steel target materials?

Bently Nevada calibrates the 3300 XL series for AISI 4140 steel by default. However, if your target is made of another material, such as aluminum or stainless steel, the scale factor will change significantly. In such cases, you may need to recalibrate the Proximitor or apply a correction factor to maintain measurement accuracy. Therefore, it is crucial to verify the target material composition before completing the final installation.