Configured for high-frequency vibration signal transmission in 3300 NSv Proximity Transducer Systems, the Bently Nevada 330930-065-01-05 (330930 Extension Cable) provides direct physical/electrical execution. It interfaces 3300 NSv proximity probes with Proximitor sensors to deliver continuous RF carrier voltage and dynamic signal pathing across machinery monitoring loops.
Suffix Breakdown & Model Matrix
| Option Code | Designation | Parameter Value / Option Description |
|---|---|---|
| 330930 | Base Model | 3300 NSv Extension Cable |
| -065 | Cable Length Option | 6.5 metres (21.3 feet) |
| -01 | Connector Protector & Cable Option | With stainless steel armor, with FEP jacket |
| -05 | Agency Approval Option | Multiple Approvals |
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 330930-065-01-05 |
| Base Model | 330930 |
| Brand | Bently Nevada |
| Series | 3300 NSv |
| Product Type | Extension Cables |
| Origin | USA |
| Cable Length | 6.5 metres (21.3 feet) |
| Armor / Jacket Configuration | Stainless steel armor with fluorinated ethylene propylene (FEP) outer jacket |
| Agency Approval Option | Multiple Approvals (-05 option) |
| Operating Temp | -51 to +177 deg C (Standard 3300 NSv field environment rating) |
| Power Consumption | Passive physical component (0 W) |
| Cable Impedance | 75 ohm coaxial construction matching 3300 NSv Proximitor input impedance |
| Dimensions / Weight | Length: 6.5 m; Weight: Standard field cable density (~0.045 kg/m base, ~0.30 kg cable assembly) |
Eddy-Current Probe Scaling & Signal Path Verification
The 330930-065-01-05 extension cable maintains precise capacitance and inductance parameters across its 6.5-metre length to support eddy-current probe scaling. Deviations in physical line length or coaxial impedance alter the high-frequency RF carrier voltage supplied by the 3300 NSv Proximitor sensor, directly skewing linear scale factor response. Accurate cable capacitance matching ensures valid gap voltage validation targeting -10 VDC at nominal center-gap position. This signal path integrity is required for cross-talk suppression and continuous tracking of rotor dynamics under tight mechanical clearance constraints.
Frequently Asked Questions
Q: How does total transducer system length affect calibration when using the 6.5-metre 330930 extension cable?
A: 3300 NSv Proximitor sensors are calibrated to specific total system lengths (typically 5.0 metres or 7.0 metres). The 6.5-metre extension cable must be paired with a probe length (e.g., 0.5 metre) that totals the exact system length specified on the Proximitor label to prevent scale factor error.
Q: What physical protection does the -01 option code provide over unarmored versions?
A: The -01 option wraps the internal coaxial cable in a flexible stainless steel armor to protect against crushing and abrasion, while the outer FEP jacket provides chemical isolation and moisture sealing.
Q: Can the extension cable armor be grounded at intermediate conduit supports?
A: No. The cable armor and connector shields must remain electrically isolated from field ground along the run to prevent ground loops. Shield grounding occurs strictly at the monitor cabinet/Proximitor common ground terminal.
Field Installation Guidelines
- Inspect male and female miniature coaxial connectors for dirt, moisture, or bent central contacts prior to mating. Clean with non-residue electronic contact cleaner if necessary.
- Join coaxial connectors by hand until threads engage smoothly. Tighten to finger-tight, then torque using dedicated connector pliers to the recommended specification without twisting the cable body.
- Slide silicone connector protectors or insulation boots completely over mated connector junctions to prevent metal-to-metal contact with grounded junction boxes or conduit fittings.
- Route the armored cable through protective cable trays or conduit, maintaining a minimum bend radius of 25 mm (1.0 inch) to prevent kinking the flexible stainless steel armor.
- Secure cable runs at regular intervals using stainless steel hardware clamps. Ensure clamps clamp firmly around the outer FEP jacket without crushing or deforming internal coaxial geometry.
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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