Bently Nevada 330752-80-05 Interconnection Cable – Signal Transmission Interface | 3300 Series Proximity Monitoring System
Engineering Background
The Bently Nevada 3300 Series is the industry benchmark for continuous machinery protection in rotating equipment applications. Reliable signal transmission between proximity probes, extension cables, and Proximitor® sensors is critical to system accuracy. The 330752-80-05 Interconnection Cable is the OEM-specified interface component engineered to maintain signal integrity across the full measurement chain.
Product Positioning
Designed for procurement engineers and reliability teams sourcing certified replacement or expansion components for existing 3300 Series installations. This cable ensures plug-and-play compatibility with Bently Nevada Proximitor® sensor housings and associated field wiring without requiring system reconfiguration.
Complete Technical Specifications
| Part Number | 330752-80-05 |
| Manufacturer | Bently Nevada (Baker Hughes) |
| Series / Platform | 3300 Series Proximity Monitoring System |
| Component Type | Interconnection Cable Assembly |
| Cable Length | 5 m (16.4 ft) — suffix “-05” denotes 5-meter configuration |
| Connector Type | OEM-specified multi-pin connectors, both ends terminated |
| Signal Type | Eddy-current proximity signal (DC voltage, –24 VDC bias) |
| Compatible Sensors | Bently Nevada 3300 XL 8mm / 11mm Proximitor® Sensors |
| Compatible Probes | 3300 Series 8 mm proximity probes |
| Operating Temperature | –40 °C to +85 °C (–40 °F to +185 °F) |
| Shielding | Double-shielded coaxial construction for EMI/RFI rejection |
| Weight | Approx. 700 g |
| Compliance | CE, RoHS; meets API 670 5th Edition signal chain requirements |
| Country of Origin | USA |
Proven Application Environments
- Steam and gas turbine shaft radial/axial vibration monitoring
- Centrifugal compressor rotor position measurement
- Pump and motor bearing proximity sensing in petrochemical plants
- Power generation facilities requiring continuous online machinery protection
- Offshore oil & gas platforms with high EMI environments
- LNG liquefaction trains and pipeline compressor stations
Engineering Advantages
- OEM-Exact Fit: Factory-terminated connectors eliminate field wiring errors and ensure impedance matching with 3300 Series Proximitor® sensors.
- Signal Integrity: Double-shielded coaxial construction suppresses EMI/RFI interference common in high-voltage switchgear environments.
- Plug-and-Play Replacement: Direct drop-in for existing 330752-80-05 installations — no recalibration required.
- Wide Temperature Range: Rated –40 °C to +85 °C, suitable for both arctic outdoor installations and high-temperature turbine enclosures.
- API 670 Compliance: Meets the signal chain requirements of API 670 5th Edition for machinery protection systems.
- Reduced Downtime: Pre-tested and certified assemblies minimize commissioning time during planned maintenance windows.
System Architecture & Signal Flow
The 330752-80-05 occupies the interconnection stage of the Bently Nevada 3300 Series signal chain:
Proximity Probe (field) → Extension Cable → [330752-80-05 Interconnection Cable] → Proximitor® Sensor → Monitor Rack (3500/3300)
- The probe generates an eddy-current signal proportional to the gap between probe tip and target shaft.
- The interconnection cable transmits the conditioned –24 VDC bias signal from the extension cable to the Proximitor® sensor input.
- The Proximitor® sensor converts the oscillator signal to a DC voltage output (–24 VDC scale factor: typically –7.87 V/mm).
- The monitor rack processes the DC voltage for vibration, position, and speed measurements per API 670 alarm/trip setpoints.
Sourcing & Quality Verification
- Inventory Status: In-stock units available for immediate dispatch; lead time for bulk orders quoted within 24 hours.
- Traceability: Each unit supplied with manufacturer documentation and batch traceability records upon request.
- Condition: New OEM, surplus new, or recertified — condition confirmed at time of quotation.
- Inspection: Pre-shipment continuity and insulation resistance testing performed on all cable assemblies.
- Packaging: Anti-static shielded bag, foam-lined carton; export packaging available for international shipments.
Procurement Process
- Submit RFQ — Contact us via email or phone with your required quantity and delivery timeline.
- Receive Quote — Pricing, lead time, and condition confirmation returned within 1 business day.
- Place Order — Purchase order accepted; payment terms available for qualified accounts.
- Shipment — DHL / FedEx / UPS international express; EXW, FOB, CIF Incoterms supported.
- Documentation — Commercial invoice, packing list, COO, and test reports provided with shipment.
Technical FAQ
Q: Is the 330752-80-05 compatible with the 3500 Series monitor rack?
A: Yes. The 330752-80-05 interconnection cable is compatible with both 3300 and 3500 Series Proximitor® sensors when used with the appropriate probe and extension cable combination.
Q: What is the difference between the -05 and other length suffixes (e.g., -10, -15)?
A: The numeric suffix denotes cable length in meters. The -05 suffix indicates a 5-meter assembly. Longer lengths (-10 = 10 m, -15 = 15 m) are available — contact us for availability.
Q: Can this cable be used in hazardous area (ATEX/IECEx) installations?
A: Consult the Bently Nevada 3300 Series system documentation and your site safety engineer. The interconnection cable itself must be installed within the approved system boundary defined in the Proximitor® sensor’s hazardous area certification.
Q: Do you provide a warranty?
A: Yes. New OEM units carry the original manufacturer warranty. Surplus and recertified units carry a Konmask 12-month functional warranty.
Q: What is the minimum order quantity (MOQ)?
A: MOQ is 1 unit. Volume pricing available for orders of 5 units or more.
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