Bently 330195-02-12-90-05

Description

3. Technical Specifications

Cable Core & Construction

• Conductor: Stranded tinned copper conductors (22 AWG) with 7 individual strands, enhancing flexibility and resistance to fatigue caused by prolonged vibration. The tinned coating provides superior corrosion resistance, extending the cable’s lifespan in humid or chemically exposed industrial settings.
• Insulation: Cross-linked polyethylene (XLPE) insulation with a thickness of 0.25 mm. XLPE delivers high thermal stability (operating up to 105°C), excellent dielectric strength (≥20 kV/mm), and resistance to abrasion and industrial oils, preventing insulation breakdown under stress.
• Shielding: Triple-layer shielding—aluminum foil (100% coverage) + tinned copper braid (95% coverage) + a 22 AWG tinned copper drain wire. This configuration achieves shielding effectiveness of ≥95 dB at 100 MHz, eliminating EMI and radio frequency interference (RFI) from nearby power cables, motors, or control systems.
• Outer Jacket: Polyurethane (PU) jacket with a Shore hardness of 85A. PU offers exceptional resistance to oils (mineral, hydraulic), solvents (methanol, acetone), and mechanical impact; it is also flame-retardant (compliant with UL 94 V-0) and UV-resistant, making it suitable for both indoor and outdoor installations.

Electrical Performance

• Characteristic Impedance: 50 ohms ±5% (measured at 1 MHz), perfectly matched to the impedance of 3300 Series probes and signal conditioners. This matching prevents signal reflection, loss, or distortion, ensuring accurate transmission of high-frequency vibration signals (up to 10 kHz).
• Capacitance: ≤90 pF per meter (at 1 kHz, 25°C). Low capacitance minimizes signal delay, critical for detecting subtle machinery anomalies (e.g., 0.001 mm shaft displacement) that indicate early-stage issues like bearing wear or rotor imbalance.
• 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 (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 or short circuits.

Physical & Environmental Parameters

• Cable Length: 12 meters (indicated by the “12” in the part number), a standard length for industrial setups where probes are mounted remotely from control cabinets.
• Connector Configuration:
  • One end: Bently-specific bayonet connector (male, 5-pin) with gold-plated contacts. Gold plating ensures low contact resistance (≤10 mΩ) and prevents oxidation, maintaining reliable connectivity over time.
  • Other end: Terminal block adapter (female, 5-pin) with a 90-degree angled orientation (referenced by the “90” in the part number). This angled design optimizes space in tight control cabinets, preventing cable strain and simplifying routing around other components.
• Operating Temperature Range: -40°C to +100°C, broader than standard extension cables, enabling reliable performance in extreme environments—from arctic oil refineries (-40°C) to power plant turbine halls (+95°C).
• 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 under the intense vibration generated by rotating machinery.
• Ingress Protection (IP) Rating: IP67 for the mated connector assembly, providing complete protection against dust ingress and temporary submersion in water (up to 1 meter for 30 minutes)—ideal for damp or dusty areas like pulp mills or mining sites.
• Weight: Approximately 0.36 kg per 12-meter length, lightweight enough for easy installation without adding stress to probe mounts or cabinet fixtures.

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 environments with flammable gases or vapors (e.g., oil refineries, chemical plants).
• Environmental compliance: RoHS 2.0 (EU Directive 2011/65/EU), free of lead, mercury, cadmium, and other restricted substances, meeting global environmental standards.

4. Functional Features

• Uncompromised Signal Integrity: The triple-layer shielding and impedance-matched design eliminate signal distortion and interference, ensuring even the smallest machinery vibrations or shaft displacements are accurately transmitted to the signal conditioner. This precision is essential for early detection of potential failures—such as misalignment, bearing degradation, or rotor imbalance—allowing maintenance teams to address issues before they cause costly downtime.
• Extreme Environmental Durability: The PU outer jacket, XLPE insulation, and tinned copper conductors enable the cable to withstand harsh industrial conditions, including exposure to oils, solvents, extreme temperatures (-40°C to +100°C), and high vibration. It also resists UV radiation, making it suitable for outdoor installations like offshore wind turbines or outdoor pump stations.
• Space-Saving, Easy Installation: The 90-degree angled terminal block adapter is a key functional advantage, as it allows the cable to be routed in tight control cabinets without bending or straining—reducing installation time and minimizing the risk of cable damage. The pre-terminated bayonet connector features a “click-lock” mechanism for secure, error-free mating with 3300 Series probes, eliminating the need for field wiring and reducing human error during 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 copper conductors enhance flexibility, preventing conductor breakage from repeated vibration—a common failure point in solid-conductor cables.
• Hazardous Area Compatibility: ATEX and IECEx certifications ensure the cable can be safely used in Zone 2 hazardous locations, where flammable gases or vapors may be present. The flame-retardant PU jacket also prevents the spread of fire, enhancing overall site safety and compliance with industry regulations.
• Seamless System Integration: 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 modifications, ensuring it integrates seamlessly into existing Bently monitoring systems and maintains the system’s overall performance.

5. Application Scenarios

• Power Generation Industry:
  • Deployed 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, critical for preventing turbine failures that could lead to power outages. The cable’s high-temperature resistance (+100°C) and vibration tolerance make it ideal for turbine halls, where temperatures and mechanical stress are consistently high.
• Oil & Gas Industry:
  • Used in offshore drilling platforms, onshore refineries, and pipeline compressor stations. It connects proximity probes on centrifugal compressors, reciprocating pumps, and gearboxes, monitoring machinery health in corrosive (saltwater exposure) and potentially explosive (Zone 2) environments. The cable’s IP67 rating, corrosion-resistant tinned conductors, and ATEX certification ensure reliability in these high-risk settings.
• 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—critical for avoiding unplanned shutdowns of continuous production processes.
• Metallurgical Industry:
  • Applied 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 extreme temperatures (-40°C to +85°C) make it suitable for global marine routes—from arctic waters to tropical seas. It monitors engine vibration and shaft position, preventing costly engine failures during long voyages.
• Heavy Manufacturing & Mining:
  • Used in cement plants, mining crushers, and conveyor systems. These settings involve intense vibration (from crushers), heavy dust (cement powder, mine tailings), and occasional moisture (washdowns). The cable’s triple-layer shielding blocks EMI from mining equipment, while its IP67 rating ensures it remains functional. It monitors conveyor motor vibration and crusher shaft displacement, reducing downtime in high-volume production or mining operations.