Bently Nevada 330730-080-03-00 3300 XL 11 mm Extension Cable

Product Specification

330730-080-03-00 Extension Cable

Brand Name:Bently Nevada

Product Name:330730-080-03-00

Warranty:1Year

Main Parameters

Core Features & Advantages

• Armored Construction for Mechanical Protection: The -03 option includes flexible AISI 302 stainless steel armor with an FEP outer jacket. This provides enhanced mechanical protection against abrasion, crushing, and accidental impact in harsh industrial environments, such as turbine decks and compressor skids .

• Connector Protectors for Environmental Sealing: The -03 suffix also indicates the inclusion of pre-installed connector protectors. These silicone rubber seals encapsulate the coaxial ClickLoc connector joints, preventing fluid contamination, moisture ingress, and ground loops caused by contact with metal conduit or bearing housings .

• Complete Interchangeability and Signal Integrity: The 3300 XL system supports complete interchangeability of probes, extension cables, and Proximitor Sensors. The cable’s 75 Ω triaxial construction with full shielding ensures high signal-to-noise ratio and precise impedance matching, preserving the 11 mm system’s 3.94 V/mm (100 mV/mil) scale factor for accurate eddy-current probe scaling .

• CableLoc™ Pull Strength: The patented CableLoc design provides 330 N (75 lb) of pull strength at the probe-to-extension cable connection, preventing cable pull-out from vibration or accidental snagging during installation and operation .

• Total System Length Configuration: The 8.0-meter extension cable is designed to pair with a 1.0-meter 3300 XL 11 mm probe to form a complete 9.0-meter system when used with a 9-meter Proximitor Sensor. The sum of the probe cable length plus extension cable length must equal the Proximitor’s rated system length .

Typical Applications

The 330730-080-03-00 is widely used for critical rotating machinery monitoring in demanding industrial applications :

• Steam and Gas Turbines: Axial thrust position and differential expansion measurements requiring extended reach and mechanical protection

• Centrifugal and Axial Compressors: Shaft vibration and position monitoring in high-vibration environments

• Industrial Pumps and Gearboxes: Vibration analysis on critical rotating assets in refineries and chemical plants

• Keyphasor and Speed Monitoring: Phase reference and zero-speed measurements on fluid-film bearing machines

Frequently Asked Questions (FAQ)

Q1: What does the model number “330730-080-03-00” indicate?
A: The breakdown is: 330730 = 3300 XL 11 mm Extension Cable; -080 = 8.0 meter (26.2 ft) length; -03 = Armored cable with connector protector; -00 = No agency approval required .

Q2: What is the total system length this cable can create?
A: The 8.0-meter extension cable pairs with a 1.0-meter 3300 XL 11 mm probe to form a complete 9.0-meter system when used with a 9-meter Proximitor Sensor .

Q3: Can this cable be cut or spliced to fit field conduit runs?
A: No. Modifying the physical length alters total cable capacitance (69.9 pF/m nominal), which invalidates system calibration and shifts sensor voltage outputs. The cable must be used at its factory length .

Q4: What is the advantage of the connector protectors?
A: The connector protectors provide a reusable environmental seal that prevents fluid contamination and moisture ingress at the coaxial connection point. They eliminate the need for self-fusing silicone tape or heat-shrink tubing, making installation faster and more reliable .

Q5: What is the minimum bend radius for installation?
A: The minimum cable bend radius is 25.4 mm (1.0 inch). Exceeding this limit can damage the cable’s internal FEP insulation and degrade signal quality .

Q6: Does this cable require agency approvals for hazardous areas?
A: This specific model (-00 suffix) has no agency approvals and is suitable for general-purpose environments only. For hazardous area installations, select a variant with the appropriate approval suffix (e.g., -05 for CSA, ATEX, IECEx) .

Q7: What is the operating temperature range?
A: The cable operates from -52°C to +177°C (-62°F to +351°F), making it suitable for extreme industrial environments .

Q8: How should the extension cable be routed?
A: Route the extension cable inside dedicated, grounded metallic conduits separate from high-voltage AC power wiring. Ensure the outer shield connects to earth ground strictly at the Proximitor housing chassis point to prevent ground loops .

Recommended Models & Related Products

The 330730-080-03-00 is part of the 3300 XL 11 mm Extension Cable family. Below are related models for different lengths and protection options :

Choosing the Right Model

• For standard armored 8.0 m systems: The 330730-080-03-00 is the correct choice for applications requiring mechanical protection and environmental sealing .

• For fluid-tight applications: Select the -13 option (e.g., 330730-080-13-05) for FluidLoc technology to prevent oil and process fluid migration .

• For hazardous area installations: Choose the -05 suffix for CSA, ATEX, and IECEx certifications.