Configured for non-contact shaft displacement and dynamic vibration measurement in 3300 NSv Machinery Monitoring System platforms, the Bently Nevada 330905-00-25-05-02-05 (330905 Proximity Sensors) provides direct physical/electrical execution. Constructed with an unarmored M10 x 1 AISI 304 stainless steel threaded body, this transducer features a 0 mm unthreaded length, a 250 mm overall case length, and a 0.5 m (20 in) FEP-insulated coaxial cable terminated with a miniature ClickLoc connector and multiple agency approvals.
Suffix Breakdown & Model Matrix
| Option Code | Parameter Designation | Selected Configuration |
|---|---|---|
| 330905 | Base Model | 3300 NSv Probe, M10 x 1 thread, without armor |
| -00 | Unthreaded Length | 0 mm |
| -25 | Overall Case Length | 250 mm |
| -05 | Total Length Option | 0.5 m (20 in) |
| -02 | Connector & Cable Type | Miniature coaxial ClickLoc connector, standard cable |
| -05 | Agency Approval Option | Multiple approvals (CSA, ATEX, IECEx) |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330905-00-25-05-02-05 |
| Brand | Bently Nevada |
| Origin | United States |
| Weight | 1.5 kg |
| Dimensions | M10 x 1 thread profile (250 mm overall case length) |
| Operating Temp | -34 deg C to +177 deg C (-30 deg F to +351 deg F) |
| Power Consumption | Passive transducer (Powered via Proximitor Sensor) |
| Storage Temp | -51 deg C to +177 deg C (-60 deg F to +351 deg F) |
| Probe Tip Material | Polyphenylene sulfide (PPS) |
| Probe Case Material | AISI 304 stainless steel (SST) |
| Cable Specification | 75 Ohm coaxial, fluoroethylene propylene (FEP) insulated |
| Connector Type | Miniature coaxial ClickLoc connector |
| Agency Approvals | Multiple approvals (Option 05) |
Mechanical Monitoring & TSI Performance
The 330905-00-25-05-02-05 transducer operates via high-frequency eddy-current probe scaling to measure real-time rotor dynamics in narrow keyways, small-diameter shafts, or restricted counterbores. Output voltage varies linearly with the physical gap between the PPS tip and the target material. Performing gap voltage validation to achieve a target reading of -10 VDC during installation ensures the probe is centered within its linear operating span, optimizing cross-talk suppression when deployed alongside adjacent sensor channels.
Frequently Asked Questions
Q: What gap voltage level verifies correct mechanical calibration during probe setup?
A: Mechanical insertion depth must be adjusted until the output voltage measured at the connected 3300 NSv Proximitor Sensor reads -10 VDC, centering the signal in its linear voltage range.
Q: Can the 0.5 m probe cable be routed directly to system monitoring terminals?
A: No. The integrated 0.5 m (20 in) FEP coaxial cable must couple via its ClickLoc connector to a matching 3300 NSv extension cable to complete the 5.0 m or 7.0 m tuned system loop length.
Q: What structural advantages does the Polyphenylene sulfide (PPS) tip provide?
A: The PPS tip encapsulates the probe sensing coil, offering physical resistance to industrial fluids and temperature stability from -34 deg C to +177 deg C.
Field Installation Guidelines
- Thread the M10 x 1 stainless steel body into the mounting hole by hand to prevent cross-threading prior to applying final torque.
- Engage a minimum of 5 full threads to maintain a secure mechanical hold against machinery vibration.
- Route the unarmored FEP coaxial cable inside protective conduit, maintaining minimum bend radii and separation from AC power lines.
- Clean the ClickLoc miniature coaxial connector surfaces to eliminate dust and oil before locking the bayonet coupling mechanism.
What's clients say about us
Excellent Emergency Support!
Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.
Mark Thompson
Maintenance Manager, USAReliable Source for New Spares
Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.
Robert Hoffmann
Engineering Lead, GermanyTop-tier Service and Quality
We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.
Lucas Müller
Operations Director, GermanyRelated Products
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Guide
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