Bently Nevada 330103-10-20-10-02-00 3300 XL 8mm Proximity Probe

Product Overview

The 330103-10-20-10-02-00 operates as a high-precision transducer within the Bently Nevada 3300 XL 8mm Proximity Transducer System. This eddy current probe measures both static displacement and dynamic vibration by sensing the gap between the probe tip and the target shaft. It provides critical data for machine protection systems in high-speed rotating equipment such as gas turbines, steam turbines, and centrifugal compressors. We supply this unit as 100% Brand New original hardware, ensuring factory-calibrated accuracy for your mission-critical monitoring loops.

Part Number Breakdown

Bently Nevada utilizes a modular part numbering system to define the mechanical profile of the 330103 series:

Technical Specifications

The 330103-10-20-10-02-00 delivers consistent performance in extreme industrial environments:

• Probe Tip Diameter: 8 mm

• Linear Range: 2.0 mm (80 mils)

• Nominal Scale Factor: 7.87 V/mm (200 mV/mil)

• Operating Temperature: -51°C to +177°C (-60°F to +351°F)

• Minimum Bend Radius: 25.4 mm (1.0 in)

• Connector Type: Gold-plated ClickLoc™ miniature coaxial connector

• System Total Length: 1.0 meter (Requires extension cable for 5m or 9m systems)

Engineering Advantages

• Extended Reach for Deep Access: The 200 mm case length combined with a 100 mm unthreaded section solves the challenge of installing sensors through thick machine casings or deep bearing housings. It allows for precise gapping in recessed locations where standard probes cannot reach.

• Extreme Thermal Stability: The 3300 XL design maintains scale factor integrity across a massive temperature gradient (-51°C to +177°C). This stability ensures that vibration readings remain accurate even during rapid thermal expansion of the machine during startup.

• ClickLoc™ Interconnect Security: The gold-plated ClickLoc™ connector system prevents the cable from backing out due to machine vibration. The locking mechanism ensures a gas-tight, low-resistance connection, eliminating the signal noise often associated with standard coaxial interfaces.

• Flexible Routing in Tight Spaces: A 25.4 mm maximum bend radius allows engineers to route the probe cable through tight conduit or around internal machine components without damaging the coaxial shielding or degrading the signal.

• Non-Contact Eddy Current Technology: By utilizing high-frequency electromagnetic fields, the probe detects shaft movement without physical contact. This removes the risk of mechanical wear and allows for continuous monitoring of machinery rotating at speeds exceeding 50,000 RPM.

FAQs

Q: Do I need to purchase a separate extension cable for this probe?

A: Yes. The 1.0-meter total length of the 330103-10-20-10-02-00 is not sufficient to reach the Proximitor sensor directly in most applications. You must use a 3300 XL Extension Cable to meet the total system length (usually 5.0 or 9.0 meters) required by your specific Proximitor.

Q: How do I set the correct gap during installation?

A: Use a digital voltmeter to measure the DC voltage output from the Proximitor sensor. Adjust the probe position until the voltage matches the center of the linear range (typically -10.0 VDC for most 3300 XL systems) before tightening the mounting nuts.

Q: Can this probe withstand exposure to hot turbine oil?

A: Yes. Bently Nevada 3300 XL probes utilize polyphenylene sulfide (PPS) tips and stainless steel cases, which resist degradation from common industrial lubricants and hydraulic fluids found in turbomachinery.

Q: What is the benefit of the 100mm unthreaded option?

A: The unthreaded portion allows the probe to slide freely through mounting bushings or brackets. This prevents the threads from catching on the internal edges of the machine casing, ensuring you can reach the target shaft smoothly and safely.