The Bently Nevada 330904-04-14-05-02-00, also cataloged as the 330904 Proximity Sensors, operates as a dedicated hardware component for non-contact shaft vibration and positional displacement monitoring within 3300 XL NSv Machinery Monitoring System platforms. The transducer assembly features a 40 mm unthreaded length, a 140 mm overall case length, and a 0.5 m (20 in) standard coaxial cable terminated with a miniature coaxial ClickLoc connector.
Suffix Breakdown & Model Matrix
| Option Code | Parameter Designation | Selected Configuration |
|---|---|---|
| 330904 | Base Model | 3300 XL NSv Proximity Sensor |
| -04 | Unthreaded Length | 40 mm |
| -14 | Overall Case Length | 140 mm |
| -05 | Total Length Option | 0.5 m (20 in) |
| -02 | Connector & Cable Type | Miniature coaxial ClickLoc connector, standard cable |
| -00 | Agency Approval Option | No certificates required |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330904-04-14-05-02-00 |
| Brand | Bently Nevada |
| Origin | United States |
| Weight | 0.45 kg (1.0 lb) |
| Dimensions | Threaded probe body (40 mm unthreaded / 140 mm case length) |
| Operating Temp | -51 deg C to +177 deg C (-60 deg F to +350 deg F) |
| Power Consumption | Passive transducer (Powered via Proximitor Sensor) |
| Cable Type | 75 Ohm coaxial, FEP insulated, standard cable |
| Connector Type | Miniature coaxial ClickLoc connector |
| Unthreaded Length | 40 mm |
| Overall Case Length | 140 mm |
| Total Cable Length | 0.5 m (20 in) |
| Agency Approvals | None required (Option 00) |
Mechanical Monitoring & TSI Performance
Designed specifically for installations with narrow side-view clearances or counterbored mounting holes, the 330904-04-14-05-02-00 probe executes precision rotor dynamics monitoring on small-diameter shafts. When paired with a matching 3300 XL NSv Proximitor Sensor, eddy-current probe scaling produces a linear output voltage directly proportional to target surface gap distance. Achieving proper gap voltage validation (targeted at -10 VDC during installation) ensures proper linear positioning, optimal dynamic measurement range, and effective cross-talk suppression between closely spaced probe channels.
Frequently Asked Questions
Q: What gap voltage should be targeted when setting up the 330904-04-14-05-02-00 probe mechanically?
A: Adjust physical probe insertion depth until the output voltage from the connected Proximitor Sensor reads -10 VDC, which corresponds to the midpoint of the calibrated linear range.
Q: Can the 0.5 m probe cable be wired directly to the TSI rack monitoring terminal?
A: No. The 0.5 m (20 in) integrated probe cable requires a matching 3300 XL NSv extension cable to establish the complete 5 m or 7 m total system length required by the Proximitor Sensor.
Q: How does the NSv probe tip profile differ from standard 8 mm proximity probes?
A: The NSv tip profile is engineered with a smaller magnetic footprint, allowing accurate vibration readings in narrow counterbores and tight spatial locations where standard 8 mm probes suffer from side-wall interference.
Field Installation Guidelines
- Thread the probe casing into the mounting bracket or sleeve port using appropriate wrenches; avoid over-torquing to protect case threads.
- Verify that thread engagement meets standard mechanical locking tolerances (e.g., minimum 5 full threads engaged).
- Ensure the target shaft surface is free of deep mechanical scratches, rust, or magnetic runout prior to taking initial zero-gap readings.
- Clean the ClickLoc connector faces to remove residual grease or dirt before locking the coaxial coupling ring into position.
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
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