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The Bently Nevada 330930-060-01-CN, also cataloged as the 330930 Extension Cable, operates as a dedicated hardware component for high-frequency signal transmission within 3300 XL Proximity Transducer Systems. It routes dynamic RF phase and amplitude signals between the proximity probe and the Proximitor sensor without signal degradation.

Suffix Breakdown & Model Matrix

Option Code Designation Parameter Value / Option Description
330930 Base Model 3300 XL Standard Extension Cable
-060 Cable Length Option 6.0 meters (19.7 feet)
-01 Connector & Cable Option With stainless steel armor, with FEP jacket
-CN Agency Approval Option Country-specific approvals (China/Asia-Pacific regional compliance)

Hardware Specifications

Parameter Specification
Model 330930-060-01-CN
Base Model 330930
Brand Bently Nevada
Series 3300 XL
Product Type Standard Extension Cable
Origin USA
Cable Length 6.0 meters (19.7 feet)
Armor / Jacket Type Stainless steel flexible armor with fluorinated ethylene propylene (FEP) outer jacket
Agency Approvals Country-specific (CN option)
Calculated Net Weight 0.27 kg (0.045 kg/m)
Shipping Weight 1.5 kg
System Capacitance / Impedance Matched to 3300 XL Proximitor Sensor and Probe input circuit specifications
Operating Temp Range Standard 3300 XL field rating (-51 to +177 deg C for extended temperature environments)

Eddy-Current Probe Scaling & Signal Path Validation

The 330930 extension cable maintains tight tolerance control over internal core capacitance and inductance to ensure accurate eddy-current probe scaling across the transducer system. Impedance mismatching across extension cabling alters the RF carrier voltage supplied by the Proximitor sensor, directly affecting the 200 mV/mil (7.87 V/mm) or 100 mV/mil output scale factor. Precise line-length calibration verifies gap voltage validation targeting -10 VDC at nominal center-gap positions, preventing signal attenuation and cross-talk suppression issues in dense machinery monitoring racks monitoring rotor dynamics.

Frequently Asked Questions

Q: How does cable length selection affect overall 3300 XL proximity transducer system tuning?

A: The total system length (probe plus extension cable) must match the total system length specification of the 3300 XL Proximitor Sensor (typically 5.0 meters or 9.0 meters total). Installing a 6.0-meter extension cable requires pairing with a 1.0-meter or 3.0-meter probe, depending on the targeted 5-meter or 9-meter sensor calibration.

Q: What protection does the option -01 armor configuration provide in severe field environments?

A: The stainless steel flexible armor provides high mechanical crush resistance and tensile strength, while the outer FEP jacket seals the metallic armor against corrosive chemical exposure, moisture ingress, and abrasion.

Q: Why is proper connector tight-torque and insulation critical during installation?

A: Loose or contaminated miniature coaxial connectors introduce series resistance and capacitive degradation, shifting the baseline -10 VDC gap voltage reading and distorting high-frequency vibration signal transmission.

Field Installation Guidelines

  1. Inspect the male and female miniature coaxial connectors for contamination, moisture, or physical pin deflection prior to mating. Clean with contact cleaner if necessary.
  2. Hand-tighten the coaxial connectors, then apply finger-tight torque or use the manufacturer-recommended connector protector/wrench to secure the threaded connection without over-torquing.
  3. Install silicone connector protectors or rubber boots over the mated junction to prevent moisture penetration and ground loops caused by the armor contacting structural steel.
  4. Maintain a minimum bend radius of 25 mm (1.0 inch) for armored extension cabling during routing to avoid kinking the internal flexible stainless steel armor or damaging the internal coaxial core.
  5. Secure the cable run along structural conduit trays using stainless steel cable ties. Do not crush the FEP outer jacket. Ensure the cable armor is isolated from ground except through the intended Proximitor housing ground connection point.

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