Bently Nevada

Bently Nevada 330730-080-00-CN 3300 XL 11 mm Extension Cable

SKU 330730-080-00-CN

In stock
  • 12-month warranty
  • Free returns within 30 days
  • Manufacturer: Bently Nevada

  • Product No.: 330730-080-00-CN

  • Country of origin:United States

  • Product Type: Proximity Transducer Cables

  • Payment: T/T, Western Union

  • Weight: 320g

  • Shipping port: Xiamen

  • Warranty: 12 months

Description

Serving as a vital link in high-accuracy machinery protection systems, the Bently Nevada 330730-080-00-CN extension cable provides seamless signal transmission for the 3300 XL 11 mm Proximity Transducer System. This coaxial cable is engineered to maintain signal integrity over long distances, connecting the proximity probe to the proximitor sensor without introducing phase shift or calibration drift. Designed specifically to withstand the harsh environments of large rotating machinery, it is optimized for tracking parameters such as radial vibration, axial thrust, and keyphasor references in industrial turbines, compressors, and pumps.

Features

  • Precise Signal Matching: Calibrated specifically to match the electrical impedance and capacitance requirements of the Bently Nevada 3300 XL 11 mm sensor line.
  • Robust Miniature Coaxial Connectors: Gold-plated terminal connections resist corrosion and maintain low-resistance contact over long periods of operation.
  • Standard Construction (-00 Option): Features a high-flexibility coaxial cable design optimized for routing through dedicated conduit networks.
  • Certified Compliance (-CN Option): Certified under regional hazardous area regulations for safe installation in classified industrial environments.

Applications

  • Steam and gas turbine bearing housing vibration monitoring.
  • Hydroelectric generator shaft alignment and axial displacement tracking.
  • Reciprocating compressor piston rod position and crosshead monitoring.
  • Petrochemical pump and blower shaft relative vibration measurements.

Technical Specifications Table

Parameter Specification Value
Manufacturer Bently Nevada
Model / Article Number 330730-080-00-CN
Product Family 3300 XL 11 mm Series
Cable Length 8.0 meters (26.2 feet)
Cable Armor Option Standard cable (unarmored)
Agency Approvals Country-specific hazardous location approvals (CN designation)
Connector Type Miniature coaxial male and female connectors
Operating Temperature -51 degC to +177 degC (-60 degF to +350 degF)
Minimum Bend Radius 25.4 mm (1.0 in)
Net Weight 0.140 kg (0.31 lbs)
Shipping Weight (Calculated) 1.000 kg (2.20 lbs)

Empirical Engineering Insights

Alternative Models & Compatibility

The 330730 series cables are uniquely tuned to match the capacitance of the 11 mm proximity probe and sensor. Do not mix this 11 mm extension cable with 3300 XL 8 mm or 5 mm proximity systems. Doing so shifts the overall system capacitance, skewing the proximitor calibration curve away from the target 3.94 V/mm (100 mV/mil) scale factor, which will trigger false machinery vibration alarms.

Application Pitfalls & Engineering Notes

Because this is the standard unarmored version (-00 option), the cable must not be run freely across machine decks or exposed walkways where it can be crushed or snagged. It is recommended to install standard cables inside dedicated, grounded conduit networks. Keep the cable layout away from high-temperature exhaust lines or turbine casings that exceed the continuous operating rating of 177 degC to prevent dielectric breakdown.

Commissioning & Wiring Tips

Before mating the coaxial connectors, always clean the gold-plated threads with an approved electronics-grade solvent to remove oil, dust, or moisture. To ensure environmental sealing at the junction point, use a dedicated connector protector kit (e.g., silicone grease and heat-shrink tubing). Hand-tighten the connectors completely plus an additional one-quarter turn using a Bently Nevada connector wrench; avoid standard pliers as they easily strip the gold plating.

Installation Guidelines

CRITICAL WARNING:

Ensure that the machinery monitoring system is bypassed or powered down before disconnecting or replacing the extension cable. Unintentional open-loop faults can trigger machine trips or emergency shutdown (ESD) sequences. Exercise caution regarding residual electrostatic charge on the coaxial core wire.

1
Verify that the overall length of the probe plus the extension cable matches the design specification of your Proximitor Sensor (typically 5.0 meters or 9.0 meters total system length).
2
Route the 8.0-meter cable through protective conduit or cable trays, ensuring the bend radius never drops below 25.4 mm (1.0 inch) to prevent damage to the inner conductor.
3
Clean and securely mate the miniature coaxial connections. Apply connector protectors if the junction resides in an area prone to oil mist or humidity.
4
Perform a loop resistance check using a digital multimeter before re-commissioning to verify the integrity of the center conductor and outer shield.

FAQ

Can I use the 330730-080-00-CN cable with an 8 mm proximity probe?

No. The 11 mm extension cable has different electrical parameters (impedance and capacitance) than the 8 mm system. Mixing them will cause calibration errors and incorrect vibration readings.

What does the -00 suffix represent on this Bently Nevada cable?

The -00 suffix indicates the standard unarmored coaxial cable configuration. It does not include an external stainless steel armor wrap.

What is the purpose of the -CN suffix?

The -CN suffix specifies that the cable holds country-specific regulatory approvals, particularly for safe installation and use in hazardous environments in China.

How do I protect the coaxial connections from oil and moisture ingress?

It is highly recommended to use a Bently Nevada connector protector kit. Clean the threads first, apply a thin layer of grease, slide the sleeve on, and seal it to prevent oil contamination.

View all FAQs →

Product Documentation

Technical Datasheet (PDF) Complete specifications and technical drawings.

Technical Datasheet

Bently Nevada 330730-080-00-CN 3300 XL 11 mm Extension Cable

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  • Standard Delivery: 4–6 business days via DHL, FedEx, and UPS.
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Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our technical warranty.
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Global Express Shipping

  • Standard Delivery: 4-6 Business Days via DHL, FedEx, and UPS.
  • Express Dispatch: Same-day dispatch for in-stock orders placed before 2:00 PM (GMT+8).
  • Worldwide Coverage: Serving over 150 countries, including rapid delivery to Saudi Arabia and UAE.

Returns & Warranty

  • 30-Day Guarantee: Returns accepted for in-stock products in original, factory-sealed packaging.
  • 12-Month Warranty: Every industrial component is backed by our professional technical warranty.

Orders are processed and delivered Monday-Friday (excluding public holidays).


For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .

TECHNICAL SPECIFICATIONS

Country of origin
United States

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