Introduction
The model 330930-065-00-05 is a 6.5-Meter Extension Cable for Bently Nevada's 3300 XL Proximity Transducer Systems. This is a critical passive component used to connect a proximity probe (transducer) to its corresponding proximitor (signal conditioner/demodulator) when they are located apart. The -065 suffix specifically denotes a cable length of 6.5 meters, while the -00-05 defines the connector types and likely a top-exit configuration. This cable is designed with robust shielding to protect the high-frequency, low-level signals from the probe against electromagnetic interference (EMI), ensuring signal integrity and maintaining the calibrated performance of the entire transducer system.
Parameters / Specifications
The following table outlines the key technical parameters for the 330930-065-00-05 extension cable.
| Parameter | Specification |
|---|---|
| Model Number | 330930-065-00-05 |
| Description | 6.5-Meter Extension Cable for 3300 XL Proximity Transducer System |
| Length | 6.5 meters (21.3 feet) |
| Cable Type | Coaxial, double-shielded for EMI protection |
| Connector (Probe End) | Standard military-style (e.g., MS3112F-20-29S) |
| Connector (Proximitor End) | Standard military-style (e.g., MS3106A-20-29P) |
| Electrical Characteristics | Matched impedance (typically 50 ohm) to maintain system calibration and sensitivity. |
| Operating Temperature | -34°C to +177°C (-29°F to +350°F) |
| Jacket Material | Fluoropolymer (e.g., FEP, PFA) for high-temperature and chemical resistance. |
| Physical Dimensions & Weight | |
| Diameter | Approx. 5.5 mm (0.22 in) |
| Weight (per meter) | Approx. 0.1 kg/m (0.07 lb/ft) |
| Total Cable Weight | Approx. 0.65 kg (1.43 lb) |
Note: This cable is a component of a matched transducer system. Using a cable with different specifications, length, or impedance can alter the system's calibration and output, leading to inaccurate vibration and position measurements. Always use the specified cable for the system.
Application Scenarios
This extension cable is an essential part of installing a proximity transducer system on machinery where the probe and the signal conditioner cannot be mounted close together.
Shaft Vibration and Position Monitoring on Large Machinery:
Used to connect 8mm proximity probes measuring radial vibration or axial position on large turbines, compressors, and pumps to their corresponding 3300 XL Proximitor modules located in a remote junction box or control panel. The 6.5-meter length is suitable for applications requiring a longer reach.
API 670 Compliant Machinery Protection:
An integral component in building a monitoring system that meets the API 670 standard for machinery protection systems, which specifies the use of qualified, matched component systems for critical measurements.
Retrofits and System Repairs:
Commonly used as a direct replacement for a damaged or faulty extension cable in an existing 3300 XL transducer system to restore proper system function and calibration.
OEM Machinery Integration:
Supplied by Original Equipment Manufacturers (OEMs) with their machinery to provide a complete, pre-specified proximity transducer system for the end-user, ensuring optimal performance and ease of installation.
Long-Distance Signal Transmission in Complex Installations:
Enables the proximitor to be located in a more accessible or environmentally controlled area while the probe is installed directly on the machine bearing housing, which may be in a high-temperature or high-vibration zone. The 6.5-meter length provides flexibility for complex cabinet and machine layouts.
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