Description
Product Overview
The Bently Nevada 330108-91-05 is a high-performance, non-armored proximity extension cable belonging to the industry-standard 3300 XL 8mm Proximitor Sensor System. This specialized cable provides a secure, low-loss electrical connection between a 3300 XL 8mm eddy current proximity probe and a 3300 XL Proximitor sensor. Engineered to survive the harshest industrial conditions, it delivers exceptional signal stability and linear performance across a wide temperature range, which is critical for accurate eddy-current displacement measurements. The specific configuration parameters of this part number indicate a total cable length of 9.0 meters with standard ClickLoc coaxial connectors on both ends.
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Technical Specifications
- Manufacturer: Bently Nevada (Baker Hughes)
- Series: 3300 XL 8mm Proximitor Sensor System
- Model Keyword: Extension Cable
- Cable Length: 9.0 meters (approx. 29.5 feet)
- Armor Option: Non-Armored (Standard flexible coaxial cable)
- Agency Approvals: Multiple options including ATEX, IECEx, and CSA for hazardous areas
- Dimensions: 900.0 cm x 0.5 cm x 0.5 cm
- Weight: 0.34 kg (0.75 lbs)
- Country of Origin: United States (USA)
- Capacitance: 69.9 pF/m (21.3 pF/ft) typical
- Operating Temperature: -51°C to 177°C (-60°F to 350°F)
BENTLY 330108-91-05
BENTLY 330108-91-05
BENTLY 330108-91-05
Application Fields
The 330108-91-05 extension cable is vital for transmitting raw high-frequency signals in heavy industrial machinery protection frameworks:
- Turbine Vibration Systems: Linking shaft vibration proximity probes on steam or gas turbines back to remote instrumentation cabinets.
- Compressor Diagnostics: Connecting radial vibration and axial thrust probes on high-speed centrifugal or reciprocating compressors.
- Pumping Infrastructure: Relaying critical fluid-film bearing displacement and shaft position data from massive process pumps.
- Gearbox Condition Monitoring: Providing reliable signal paths from internal gear shafts to outer-casing monitoring transmitters.
Product Installation and Usage Instructions
- System Length Matching: Ensure that the total length of the proximity probe plus this extension cable matches the specific calibration length required by your 3300 XL Proximitor sensor (typically 5.0 meters or 9.0 meters total system length).
- Cable Routing: Route the extension cable through dedicated, grounded industrial conduit or cable trays. Avoid running the coaxial line parallel to high-voltage power cables to eliminate electromagnetic interference (EMI).
- Connecting the Components: Join the miniature coaxial connectors of the proximity probe to one end of the 330108-91-05 cable. The ClickLoc connectors are designed to lock together firmly by hand without tools.
- Connector Insulation: Use self-fusing silicone tape or a dedicated connector protector kit to completely wrap and seal the connection points from moisture, oil, and dust ingress.
- Termination at Proximitor: Plug the opposite end of the extension cable into the “PROBE” input terminal of the 3300 XL Proximitor sensor, ensuring the connector is fully seated.
Frequently Asked Questions (Q&A)
Q: What do the specific suffix numbers “-91-05” stand for in the part number? A: In Bently Nevada’s part numbering nomenclature for the 330108 series, “-91” specifies a total cable length of 9.0 meters, and “-05” indicates standard, non-armored configuration with standard miniature coaxial connectors.
Q: Can I cut this cable to a shorter length if it is too long for my installation? A: No. Proximity probe systems rely on precise electrical capacitance and inductance properties calculated by cable length. Cutting or splicing the cable alters these values, ruining the calibration and resulting in incorrect vibration or position readings.
Q: What is the benefit of a non-armored cable versus an armored version? A: Non-armored cables (330108) are more flexible, have a smaller outer diameter, and are easier to pull through tight or complex conduit runs. However, if the cable is exposed directly to physical hazards or abrasive environments without conduit, an armored version (330130) is recommended.
Q: Is the 330108-91-05 cable compatible with older 3300 series 8mm or 5mm probes? A: Yes. The 3300 XL system is engineered to be backward compatible with standard 3300 series 5mm and 8mm components, though best linear performance is achieved when paired fully with 3300 XL series hardware.
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