Bently 330730-080-00-00

Description

3. Technical Specifications

Cable Core Parameters

• Cable Type: Reinforced shielded, twisted-pair extension cable, specialized for eddy-current proximity probe signal transmission (0–12 V DC, low-noise).
• Length: 80 feet (24.38 meters) fixed length, ensuring consistent signal performance without splicing (splicing increases signal loss by 2–5 dB per connection).
• Conductor Configuration: 4-conductor design with stranded tinned copper (20 AWG per conductor) for reduced resistance and enhanced flexibility. Conductors are arranged in two twisted pairs (power pair + signal pair) to minimize crosstalk and inductive interference.
• Conductor Resistance: ≤8 Ω per 100 feet (30.48 meters) at 25°C, ensuring minimal voltage drop across the 80-foot length—critical for maintaining stable probe power (12–18 V DC) and signal clarity.
• Insulation Material: High-performance cross-linked polyethylene (XLPE) with a dielectric strength of ≥2500 V AC (1 minute), providing robust electrical insulation and resistance to thermal aging (even at high temperatures).
• Shielding: Quad-layer shielding system—100% tinned copper braid (98% coverage) + aluminum foil (100% coverage) + conductive polymer layer + drain wire—delivering EMI/RFI attenuation of ≥75 dB at 100 MHz.
• Jacket Material: Heavy-duty, oil-resistant polyurethane (PU) with a Shore hardness of 90±5 A, offering superior abrasion resistance, impact resistance, and chemical resilience.

Connector Specifications

• Connector Type: Bently proprietary bayonet connectors (male on both ends), designed for seamless mating with 3300 Series proximity probes (e.g., 330703, 330709) and signal conditioners (e.g., 330400-02-05).
• Contact Material: Gold-plated beryllium copper (0.3 μm plating thickness), ensuring ultra-low contact resistance (≤3 mΩ) and long-term resistance to oxidation, corrosion, and mechanical wear.
• Ingress Protection (IP) Rating: IP68 when mated (per IEC 60529), protecting against dust ingress and prolonged water submersion (up to 3 meters for 72 hours).
• Latching Mechanism: Bayonet “twist-lock” design with a dual-latch system (1/4-turn engagement + secondary clip), ensuring vibration-resistant mating—preventing accidental disconnection in high-vibration environments (e.g., mining crushers, turbine generators).

Environmental & Mechanical Ratings

• Operating Temperature Range: -50°C to +135°C (cable jacket and conductors); -40°C to +100°C (connectors)—suitable for extreme industrial environments, from arctic oil fields to high-heat refinery furnace areas.
• Vibration Resistance: Compliant with IEC 60068-2-6 (20 g acceleration, 10–2000 Hz) for both cable and connectors, ensuring no signal disruption during machinery operation (even at peak vibration levels).
• Shock Resistance: Compliant with IEC 60068-2-27 (100 g shock, 6 ms duration), withstanding transient impacts during installation, maintenance, or machinery start-up/shutdown.
• Chemical Resistance: Jacket and insulation resist industrial oils (mineral oil, synthetic hydraulic oil), greases, solvents (ethanol, methanol, diesel, acetone), acids (dilute HCl, H2SO4), and saltwater—ideal for offshore platforms, chemical plants, and mining sites.
• Flame Retardancy: Compliant with UL 94 V-0 (vertical flame test) and IEC 60332-3-24 (flame propagation test), self-extinguishing within 3 seconds to reduce fire risk in flammable environments.

Electrical Performance

• Signal Attenuation: ≤0.6 dB at 15 kHz (across 80 feet), ensuring minimal degradation of high-frequency eddy-current signals—critical for detecting bearing wear harmonics (up to 15 kHz) and subtle vibration anomalies.
• Capacitance: ≤70 pF per foot (between conductors), preventing signal distortion from capacitance buildup (a major issue with long generic cables that skews low-voltage probe signals).
• Inductance: ≤0.3 μH per foot (per conductor), minimizing inductive interference from nearby high-voltage power cables (common in large industrial facilities).

4. Functional Features

• Long-Distance Signal Integrity: The quad-layer shielding system (copper braid + aluminum foil + conductive polymer + drain wire) and low-resistance 20 AWG conductors ensure EMI/RFI rejection of ≥75 dB at 100 MHz and signal attenuation of only ≤0.6 dB across 80 feet. This preserves the accuracy of ultra-subtle measurements, such as 0.1 μm radial vibration (bearing wear) and 0.001 mm axial displacement (thermal expansion), even in large industrial layouts where probes and conditioners are far apart.
• Plug-and-Play 3300 Series Compatibility: Pre-terminated with Bently’s proprietary bayonet connectors (equipped with a dual-latch system), the cable requires no on-site crimping, soldering, or calibration. The “twist-lock + clip” mechanism ensures secure, error-free mating with 3300 Series probes and conditioners—reducing installation time by 90% compared to generic long cables (which require custom termination, signal testing, and junction boxes).
• 80-Foot Length for Large-Scale Facilities: The 80-foot (24.38-meter) length is purpose-built for large industrial environments—such as power plant turbine halls (where control rooms are 60–80 feet from turbine casings), refinery process complexes (with compressors spread across large skids), and mining sites (where crushers are located far from control cabins). This eliminates the need for daisy-chaining shorter cables (which adds 2–3 failure points per connection and increases signal loss by 5–10 dB).
• Extreme Environmental Resilience: The cable operates reliably in temperatures from -50°C to +135°C, withstands 20 g vibration and 100 g shock, and resists chemicals, oil, and saltwater. IP68-rated mated connectors protect against dust and prolonged water submersion—making it suitable for the harshest environments, including offshore drilling platforms (saltwater exposure), steel mills (dust and heat), arctic oil refineries (low temperatures), and mining sites (abrasion and impact).
• Durable Construction for Long Service Life: The heavy-duty PU jacket (Shore 90 A) resists abrasion, tearing, and chemical degradation, ensuring a service life of 12+ years in industrial settings. Gold-plated beryllium copper connectors and tinned copper conductors prevent corrosion—critical for humid coastal facilities or mining sites with high moisture levels, where generic cables fail within 4–6 years.
• Safety Compliance for Hazardous Environments: UL 94 V-0 and IEC 60332-3-24 flame retardancy ratings, combined with chemical resistance, make the cable suitable for use in hazardous areas (when paired with ATEX/IECEx-certified 3300 Series probes). It aligns with global safety standards (e.g., NFPA 70 for electrical safety, ATEX for explosive atmospheres), eliminating the need for additional protective enclosures.

5. Application Scenarios

• Power Generation Industry (Large Turbine Halls):
  • Deployed in coal-fired, natural gas, and nuclear power plants to connect 3300 Series proximity probes (mounted on 15+ MW steam/gas turbine casings) to signal conditioners (housed in control rooms 60–80 feet away). The cable’s 80-foot length eliminates the need for junction boxes, while quad-layer shielding rejects interference from turbine generators and 110 kV power cables. IP68 connectors resist steam and oil contamination in turbine halls, ensuring accurate measurement of rotor vibration (preventing rotor rub) and axial displacement (tracking thermal expansion during start-up).
• Oil & Gas Industry (Refinery Process Complexes):
  • Used in onshore refineries (with sprawling process skids) and offshore drilling platforms to connect probes on centrifugal compressors, pumps, and drillstrings to conditioners in centralized control rooms. The oil-resistant PU jacket withstands exposure to refinery oils and solvents, while saltwater resistance ensures durability on offshore rigs. Low signal attenuation (≤0.6 dB across 80 feet) preserves the accuracy of compressor impeller wear detection, while the dual-latch connectors prevent disconnection from platform vibration.
• Mining Industry (Large-Scale Crusher Sites):
  • Applied in iron ore, coal, and copper mines to connect probes on jaw crushers, cone crushers, and conveyor drives (located in remote crusher stations) to conditioners in main control cabins 60–80 feet away. The heavy-duty jacket resists abrasion from mining debris and rock fragments, while vibration resistance (20 g) ensures no signal disruption during crusher operation. IP68 connectors prevent dust ingress—critical for maintaining signal integrity in dusty mining environments where generic cables clog and fail.
• Petrochemical Industry (Reactor & Agitator Complexes):
  • Integrated into ethylene crackers, polymer reactors, and large process agitators (spread across wide plant layouts) to connect probes on agitator shafts to conditioners in remote control rooms. The cable’s chemical resistance (to ethylene, propylene, and solvents) ensures durability, while the wide temperature range (-50°C to +135°C) supports operation in both cold storage areas and high-heat reactor jackets. Low capacitance (≤70 pF/foot) prevents signal distortion, ensuring accurate monitoring of agitator vibration (preventing bearing failure and costly reactor shutdowns).
• Marine Industry (Large Vessels & Offshore Platforms):
  • Installed on LNG tankers, container ships, and offshore wind platforms to connect probes on marine diesel engines (mounted on engine decks) to conditioners in the ship’s bridge or platform control room (80 feet away). The saltwater-resistant jacket and IP68 connectors withstand marine environments, while flame retardancy complies with shipboard safety standards. The 80-foot length simplifies routing through complex vessel layouts, ensuring reliable monitoring of crankshaft vibration (detecting bearing wear) and axial displacement (preventing coupling damage).
• Steel & Metallurgical Industry (Integrated Steel Mills):
  • Used in integrated steel mills to connect probes on hot rolling mill drives, blast furnace fans, and coking ovens (spread across large mill complexes) to conditioners in central control rooms. The cable’s high-temperature tolerance (+135°C) resists heat from hot rolling operations and blast furnaces, while EMI shielding rejects interference from mill motors and power cables. Abrasion resistance prevents damage from steel scrap, ensuring accurate measurement of roll vibration (maintaining steel sheet thickness and quality) and fan shaft displacement (preventing fan seizure).