Description
Are you risking machine trips due to oil-degraded vibration readings on your high-speed turbines? In critical turbomachinery loops, physical installation depth can make or break the accuracy of your eddy current sensors. The Bently Nevada 330101-00-43-15-02-CN 3300 XL 8mm Proximity Probe provides highly stable dynamic vibration and static position measurements, maintaining a flat linear response even under harsh temperature swings.
For plants executing critical turnarounds, we supply this probe in New Original (Factory Sealed) condition, backed by a 1-year warranty. In-stock units are processed and shipped within 1 to 2 business days.
Technical Specifications
- Parameter: Value
- Transducer System: 3300 XL 8 mm
- Thread Profile: 3/8-24 UNF threads (without armor)
- Unthreaded Length (Option -00): 0.0 inches
- Overall Case Length (Option -43): 4.3 inches
- Total Length (Option -15): 1.5 meters (4.9 feet)
- Connector Type (Option -02): Miniature coaxial ClickLoc connector, standard cable
- Agency Certification (Option -CN): China Ex (NEPSI) and RoHS hazardous area approvals
- Linear Range: 2.0 mm (80 mils), starting at approximately 0.25 mm (10 mils) from the target
- Target Material: AISI 4140 steel (standard calibration)
Field Performance & Application Notes
Having commissioned dozens of these probes on centrifugal compressor bearings, this specific 4.3-inch case length (Option -43) is ideal for deep-well mounting profiles through machine casings. With zero unthreaded length (Option -00), the thread runs the entire length of the case, allowing you maximum flexibility to adjust your penetration depth.
One critical installation point to watch: since this specific configuration does not feature physical armor, do not route the raw coaxial cable through high-friction areas or sharp-edged conduit junctions. If you route this probe through areas with heavy foot traffic or sharp bends, run the cable inside a dedicated flexible liquid-tight conduit to prevent physical sheath punctures that will destroy the sensor’s impedance matching.
Strategic Pros & Cons
- Pro: Full-thread design provides ultimate depth-adjustment flexibility inside deep mounting sleeves.
- Pro: Gold-plated ClickLoc connector “clicks” when fully locked, preventing accidental vibration-induced disconnects.
- Con: Standard cable lacks fluid-resistant steel armor, making it vulnerable to cutting during installation if handled roughly.
- Con: The 1.5-meter probe length requires a specific 3.5-meter or 7.5-meter extension cable to complete a standard 5m or 9m system.
Quick Conclusions
- Outstanding solution for deep-well mounting where precise physical adjustment of the probe gap is required.
- Eliminates the risk of connector oxidation under lube oil spray via the gold-plated ClickLoc design.
- Fully certified for hazardous areas under ATEX, IECEx, and China Ex (NEPSI) guidelines.
FAQ
- Can I connect this 1.5-meter probe directly to a 5-meter Proximitor? No. You must install a matching 3.5-meter extension cable between this probe and a 5.0-meter Proximitor sensor to complete the calibrated electrical length.
- Is the tip of this probe chemically resistant? Yes. The 8mm probe tip is constructed of polyphenylene sulfide (PPS), which is highly resistant to corrosive chemical vapors and hot machine lubricating oils.
- What is the default calibration material for this probe? The probe is calibrated at the factory for flat AISI 4140 steel. Other target metals will alter the linear scale factor of 200 mV/mil.




