Bently 330195-02-12-05-05

Description

3. Technical Specifications

Cable Core & Construction

• Conductor: Stranded tinned copper conductors (22 AWG) with multiple strands to enhance flexibility and resistance to fatigue from vibration. Tinned coating provides superior corrosion resistance, critical for longevity in humid or chemically exposed industrial environments.
• Insulation: Cross-linked polyethylene (XLPE) insulation with a minimum thickness of 0.25 mm. XLPE offers high thermal stability, excellent dielectric strength (≥20 kV/mm), and resistance to abrasion and oil, preventing insulation breakdown under stress.
• Shielding: Triple-layer shielding configuration—aluminum foil shield (100% coverage) + tinned copper braid shield (95% coverage) + drain wire. This design delivers shielding effectiveness of ≥95 dB at 100 MHz, eliminating electromagnetic interference (EMI) and radio frequency interference (RFI) from nearby power cables, motors, or industrial controls.
• Outer Jacket: Polyurethane (PU) jacket with a Shore hardness of 85A. PU provides exceptional resistance to oils, greases, solvents, and mechanical impact; it is also flame-retardant (compliant with UL 94 V-0) and resistant to UV radiation, ensuring durability in both indoor and outdoor industrial setups.

Electrical Performance

• Characteristic Impedance: 50 ohms ±5% (measured at 1 MHz), perfectly matched to the impedance of 3300 Series probes and conditioners. This matching prevents signal reflection, signal loss, and waveform distortion, ensuring accurate data transmission.
• Capacitance: ≤90 pF per meter (at 1 kHz, 25°C). Low capacitance minimizes signal delay and ensures that high-frequency vibration signals (up to 10 kHz) are transmitted without degradation—critical for detecting subtle machinery anomalies.
• Conductor Resistance: ≤7 ohms per 100 meters (at 25°C). Low resistance reduces voltage drop along the cable length, ensuring the proximity probe receives a stable power supply (typically 12 V DC or 24 V DC) for consistent operation.
• Dielectric Withstand Voltage: 1500 V AC for 60 seconds (between conductors and shield), confirming the cable’s ability to withstand electrical stress without leakage.

Physical & Environmental Parameters

• Cable Length: 12 meters (as indicated by the “12” in the part number), a common length for industrial installations where probes are mounted at a distance from control cabinets.
• Connector Configuration:
  • One end: Bently-specific bayonet connector (male, 5-pin) with a gold-plated contact finish to ensure low contact resistance (≤10 mΩ) and prevent oxidation.
  • Other end: Terminal block adapter (female, 5-pin) with a 05° straight orientation (referenced by the “05-05” in the part number), designed for easy mounting on signal conditioner panels and optimal space utilization in tight enclosures.
• Operating Temperature Range: -40°C to +100°C, broader than standard cables, allowing reliable operation in extreme environments such as power plant turbine halls (high heat) and arctic oil refineries (low cold).
• Vibration Resistance: Compliant with IEC 60068-2-6 (20 g acceleration, 10–2000 Hz) and IEC 60068-2-27 (50 g shock, 11 ms duration), ensuring the cable and connectors remain intact and functional under the intense vibration generated by rotating machinery.
• Ingress Protection (IP) Rating: IP67 for the connector assembly (when mated), providing complete protection against dust ingress and temporary submersion in water (up to 1 meter for 30 minutes)—ideal for damp or dusty industrial areas like pulp mills or mining sites.
• Weight: Approximately 0.35 kg per 12-meter length, lightweight enough for easy installation without adding stress to probe mounts.

Compliance & Certifications

• Electrical safety: UL 1015 (USA), CSA C22.2 No. 210 (Canada), IEC 60227 (International).
• Hazardous locations: ATEX Zone 2 (II 3G Ex nA IIC T4 Ga) and IECEx Zone 2 (Ex nA IIC T4 Ga), approved for use in potentially explosive environments with flammable gases or vapors.
• Environmental compliance: RoHS 2.0 (EU Directive 2011/65/EU), free of lead, mercury, cadmium, and other restricted substances.

4. Functional Features

• Superior Signal Integrity: The triple-layer shielding and impedance-matched design eliminate signal distortion and interference, ensuring that even minute machinery vibrations (as low as 0.001 mm) or subtle shaft displacements are accurately transmitted to the signal conditioner. This precision is vital for early detection of issues like bearing wear, shaft misalignment, or rotor imbalance—problems that can lead to catastrophic equipment failure if unaddressed.
• Extreme Environmental Durability: The PU outer jacket, XLPE insulation, and tinned copper conductors enable the cable to withstand exposure to industrial oils (e.g., mineral oil, hydraulic fluid), solvents (e.g., methanol, acetone), and temperature extremes from -40°C to +100°C. It also resists UV degradation, making it suitable for outdoor installations (e.g., offshore wind turbine nacelles).
• Easy, Error-Free Installation: The pre-terminated bayonet connector (with a “click-lock” mechanism) ensures secure mating with 3300 Series probes, eliminating the need for field wiring and reducing installation time by up to 50% compared to bulk cables. The 05° straight terminal block adapter aligns perfectly with standard signal conditioner mounting holes, preventing strain on the cable and ensuring a neat, organized control cabinet setup.
• Long-Term Reliability: Gold-plated connector contacts resist oxidation and corrosion, maintaining low contact resistance (≤10 mΩ) for the cable’s entire service life (typically 15+ years in standard industrial operation). The stranded conductors enhance flexibility, reducing the risk of conductor breakage from repeated vibration—a common failure point in solid-conductor cables.
• Hazardous Area Compatibility: ATEX and IECEx certifications allow the cable to be used in Zone 2 hazardous locations (e.g., oil refineries, chemical plants), where flammable gases or vapors may be present. The flame-retardant PU jacket also prevents the spread of fire, enhancing overall site safety.
• System-Wide Compatibility: The cable is fully validated for use with all 3300 Series proximity probes and signal conditioners (e.g., 3300/16, 3300/20, 3300/30 conditioners). This eliminates the need for adapters or custom wiring, ensuring seamless integration into existing Bently monitoring systems.

5. Application Scenarios

• Power Generation Industry:
  • Installed in coal-fired, natural gas, and nuclear power plants to connect proximity probes on steam turbines, gas turbines, and generators to signal conditioners. It monitors shaft radial vibration and axial displacement, helping operators detect issues like turbine blade wear or rotor misalignment before they cause unplanned power outages. The cable’s high-temperature resistance (-40°C to +100°C) makes it ideal for turbine halls, where temperatures often exceed 80°C.
• Oil & Gas Industry:
  • Deployed in offshore drilling platforms, onshore refineries, and pipeline compressor stations. It is used with proximity probes on centrifugal compressors, reciprocating pumps, and gearboxes to monitor machinery health in corrosive (saltwater exposure) and potentially explosive (Zone 2) environments. The cable’s IP67 rating and corrosion-resistant tinned conductors ensure reliability in offshore settings, while ATEX certification complies with hazardous area safety standards.
• Petrochemical Industry:
  • Integrated into ethylene crackers, polymer reactors, and process pumps. These facilities operate with high temperatures (up to 95°C) and exposure to harsh chemicals (e.g., ethylene, propylene). The cable’s chemical-resistant PU jacket and XLPE insulation prevent degradation from chemical spills, while its low capacitance ensures accurate transmission of vibration data from reactors—critical for preventing process shutdowns due to equipment failure.
• Metallurgical Industry:
  • Used in steel mills, aluminum smelters, and copper refineries to monitor rolling mill drives, fan motors, and hydraulic pumps. These environments are dusty, high-vibration, and subject to temperature fluctuations (from -10°C in storage areas to +90°C near furnaces). The cable’s IP67 dust protection, vibration resistance (20 g acceleration), and broad temperature range ensure consistent performance, even in the most demanding sections of the facility.
• Marine & Shipping Industry:
  • Installed on marine diesel engines, propeller shafts, and auxiliary pumps aboard cargo ships, tankers, and offshore support vessels. The cable’s resistance to saltwater corrosion (tinned conductors, PU jacket) and ability to operate in -40°C (arctic routes) to +85°C (tropical waters) make it suitable for global marine operations. It monitors engine vibration and shaft position, helping prevent engine failure during long sea voyages.
• Heavy Manufacturing & Mining:
  • Applied in cement plants, mining crushers, and conveyor systems. These settings involve extreme vibration (from crushers), dust (cement powder, mine tailings), and occasional moisture (washdowns). The cable’s triple-layer shielding blocks EMI from nearby mining equipment, while its IP67 rating and dust resistance ensure it remains functional. It monitors conveyor motor vibration and crusher shaft displacement, reducing downtime in high-volume production or mining operations.