Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330709-000-030-10-02-00 |
| Base Model | 330709 |
| Product Type | 3300 XL 11 mm Proximity Probe |
| Brand | Bently Nevada |
| Origin | USA |
| Manufacturer | Bently Nevada |
| Probe Diameter | 11 mm |
| Thread | M16 x 1.5 |
| Armor | Without armor |
| Minimum Length | 30 mm |
| Cable Length | 1.0 m (3.3 ft) |
| Connector | Miniature coaxial ClickLoc connector |
| Cable Type | Standard cable |
| Option Code | 00 – Not required |
| Weight | 0.18 kg |
| Estimated Shipping Size | 20.4 x 22.2 x 3.7 cm |
Eddy-Current Measurement and Gap Validation
The 330709 probe operates as part of the Bently Nevada 3300 XL 11 mm proximity probe system. It senses the relative position between the probe tip and a conductive machine target without mechanical contact.
For installation, technicians should establish the correct electrical gap using the associated proximity transducer system. Bently Nevada eddy-current systems commonly use a negative DC gap-voltage reference, with approximately -10 VDC serving as a recognized target during setup when specified by the applicable system documentation.
The 11 mm probe geometry supports machinery monitoring applications involving shaft displacement, vibration, and rotor position. Therefore, technicians should maintain the probe orientation and mechanical clearance required by the monitored rotor and target surface.
The miniature coaxial ClickLoc connector provides the interface to the standard probe cable. Keep the connector fully engaged and route the cable away from high-current power conductors to reduce electrical interference.
Frequently Asked Questions
Q: What mechanical thread does the 330709-000-030-10-02-00 use?
A: The supplied specification identifies an M16 x 1.5 mounting thread. The probe has no armor.
Q: What cable and connector configuration does this model use?
A: This configuration uses a 1.0 m standard cable with a miniature coaxial ClickLoc connector.
Q: Does the probe require a separate power supply?
A: The probe itself functions as a passive eddy-current sensing element. The associated proximity transducer system provides the required excitation and signal conditioning.
Field Installation Guidelines
- Verify the M16 x 1.5 mounting interface before mechanical installation.
- Confirm that the available probe length meets the required installation geometry.
- Position the probe perpendicular to the intended conductive target surface unless the machine monitoring design specifies another orientation.
- Establish and verify the probe gap with the applicable 3300 XL system electronics.
- Where the system specifies gap-voltage verification, check the resulting DC voltage before commissioning.
- Route the coaxial cable separately from high-voltage and high-current power wiring.
- Avoid sharp bends, excessive mechanical tension, and abrasion along the cable route.
- Fully seat the miniature ClickLoc connector and verify mechanical engagement before operation.
- Maintain appropriate shielding and grounding practices according to the associated Bently Nevada transducer system installation documentation.
- Inspect the probe tip, threaded body, connector, and cable jacket for mechanical damage before energizing the monitoring circuit.
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