Bently Nevada 330103-00-03-10-02-00 – 3300 XL 8 mm Proximity Probe for Critical Machinery Monitoring

The Bently Nevada 330103 is the 3300 XL 8 mm proximity probe widely used for shaft vibration and position measurements on turbines, compressors, pumps, and gearboxes. From my experience, it’s the go‑to when you need stable readings and long-term reliability in hot, high-vibration environments. The code 330103-00-03-10-02-00 appears to be a common build: typically an 8 mm probe with an integral cable length denoted by “-03”, and a system length option indicated by “-10” when paired with the matching extension cable and Proximitor. You might notice that most users match it with the 330130 extension cable and the 330180 Proximitor Sensor to form a complete 3300 XL transducer system.

Our Order Process & Guarantees

• Warranty: 365 days
• Lead time: typically 1 week if in stock; no more than one month at the latest
• Payment terms: 50% advance payment; full payment before delivery
• Express options: FedEx, UPS, DHL

Key Features

• 8 mm probe tip – Suited for standard radial vibration and shaft position measurements on medium-to-large rotors.
• 3300 XL platform – When paired with a 330180 Proximitor Sensor, the system typically provides 7.87 mV/µm (200 mV/mil) sensitivity and stable linearity.
• High temperature capability – Probe assemblies are engineered for elevated environments; many installations run up to 177°C at the probe location.
• Rugged cable and shielding – Built to reduce electrical noise and maintain signal integrity over long runs, which, in many cases, is the difference between reliable alarms and nuisance trips.
• API 670-friendly system behavior – The 3300 XL system is commonly used where API 670 compliance is expected (verify per application).
• Drop-in replacement – Typically interchangeable within existing Bently Nevada 3300 XL installations to shorten turnaround during outages.

Technical Specifications

Application Fields

This probe is used across power generation, oil & gas, chemical processing, pulp & paper, steel, and marine. Typical points include:

• Radial shaft vibration on compressors, steam turbines, gas turbines, and large pumps
• Axial (thrust) position measurement on rotating machinery bearing housings
• Casing vibration and shaft runout checks during startup and balancing

One thing I appreciate is how well the 3300 XL system holds calibration between overhauls; in many cases you can swap like-for-like and be back online without reworking the bracketry.

Advantages & Value

• Reliability – Stable performance in harsh conditions helps reduce nuisance trips and missed faults.
• Compatibility – Works seamlessly with installed Bently Nevada 3300 XL hardware; usually no re-engineering required.
• Lifecycle savings – Reduced downtime during outages and straightforward spares management translate to measurable cost benefits.
• Technical support – We can help verify cable lengths, system length, and gap settings against your machine drawings.

Installation & Maintenance

• Mount the probe in a rigid bracket; follow thread type and tip projection per your machine drawing.
• Set the nominal gap (often near 2.0 mm for 8 mm systems) using the Proximitor output and a DVM; verify linear range.
• Route the cable away from high-current sources; maintain bend radius and strain relief to prevent conductor fatigue.
• Ensure the enclosure or junction box provides ventilation and protection to IP/NEMA requirements of your site.
• Routine checks: inspect tip and cable during outages, clean debris from the target area, and re-verify gap after any rotor or bearing work.
• If tied to a monitoring system, keep firmware and alert/ alarm settings aligned with your latest reliability standards.

Quality & Certifications

• Manufacturer quality systems typically ISO 9001
• CE marking and RoHS compliance commonly applicable to the 3300 XL system components
• UL/CSA aspects depend on the complete system; consult your exact build for labeling
• Warranty: 12 months from delivery

Recommended Supporting Components

• Bently Nevada 330130-0X-XX – 3300 XL extension cable in various lengths to achieve the required system length (often 5 m, 7 m, or 9 m).
• Bently Nevada 330180-XX-XX – 3300 XL Proximitor Sensor for 8 mm probes; provides the buffered analog output and scale factor to the monitor.