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Product Introduction
The Bently Nevada 89477-40 Interconnect Cable is a high-reliability, industrial-grade cable designed specifically for use in vibration monitoring and condition monitoring systems. With a total length of 40 feet, this cable provides a dependable electrical link between proximity probes, Proximitor sensors, and monitoring modules within rotating machinery protection systems.
As part of Bently Nevada’s 89477 cable family, the 89477-40 maintains exceptional signal fidelity over extended distances, even in harsh industrial environments with high levels of electromagnetic interference, vibration, or temperature fluctuations. Its robust insulation, precision shielding, and rugged connectors make it ideal for use in applications that demand uninterrupted signal transmission and long-term reliability.
Built to support critical assets such as turbines, compressors, and large electric motors, this interconnect cable ensures that vibration, displacement, and proximity probe signals reach monitoring instruments without loss or distortion. It is a key component in predictive maintenance systems that protect multi-million-dollar machinery from damage and downtime.
Technical Specifications
| Parameter | Description |
|---|---|
| Model Number | Bently Nevada 89477-40 |
| Product Type | Interconnect Cable |
| Cable Length | 40 ft |
| Conductor Type | Twisted pair, shielded copper conductors |
| Conductor Material | Oxygen-free high-conductivity copper |
| Insulation Material | High-temperature fluoropolymer (Teflon or equivalent) |
| Outer Jacket Material | Abrasion-resistant, oil-resistant PVC/fluoropolymer blend |
| Shielding Type | Dual-layer (aluminum foil + braided copper) |
| Operating Temperature Range | -55°C to +200°C |
| Capacitance | 35 pF/ft (nominal) |
| Electrical Resistance | <10 Ω per 1000 ft |
| Voltage Rating | 300 VAC RMS |
| Connector Type | Factory-molded, corrosion-resistant connectors |
| Signal Compatibility | Proximity probe, vibration, displacement, and phase reference signals |
| Minimum Bend Radius | 50 mm |
| Environmental Resistance | Oil, moisture, chemical, and UV resistant |
| Certifications | CE, RoHS, ISO 9001 manufacturing compliance |
| Shipping Weight | 3 kg |
Applications
The Bently Nevada 89477-40 Interconnect Cable is primarily used in industrial environments where precise vibration and displacement data are essential for equipment health monitoring. It ensures stable signal transmission between sensors and control units in Bently Nevada systems.
Key applications include:
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Turbomachinery systems: Ensures accurate transmission of proximity and vibration signals from probes installed on turbines and compressors.
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Power generation plants: Used extensively in turbine supervisory instrumentation (TSI) systems for generator and turbine protection.
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Oil and gas refineries: Connects sensors in rotating equipment such as pumps, blowers, and expanders, ensuring continuous machinery diagnostics.
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Heavy-duty industrial motors: Provides high signal integrity for proximity probes used in motor vibration and shaft position monitoring.
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Process automation systems: Works within integrated monitoring networks, delivering accurate data to Bently Nevada’s 3300 or 3500 series modules.
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Harsh industrial settings: Performs reliably in high-temperature zones, oil-saturated environments, and areas with mechanical vibration or shock.
By maintaining consistent electrical characteristics over long distances, this cable is instrumental in reducing noise, preventing signal degradation, and ensuring dependable machinery protection.
Product Advantages
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Exceptional Signal Integrity: Dual shielding minimizes electromagnetic interference, ensuring precise and noise-free signal transmission even over long cable runs.
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Industrial-Grade Durability: The cable jacket resists oil, heat, and mechanical abrasion, allowing continuous operation in demanding environments.
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Enhanced Flexibility: Designed for ease of routing through tight spaces and cable trays without compromising shielding integrity.
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Reliable Electrical Performance: Consistent impedance and low capacitance preserve signal accuracy for vibration monitoring systems.
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Seamless Integration: Fully compatible with Bently Nevada proximity probes, Proximitor sensors, and 3300/3500 monitoring systems.
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Corrosion-Resistant Connectors: Molded connectors maintain secure connections and prevent ingress of contaminants.
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Reduced Maintenance Requirements: Engineered for long service life with minimal performance degradation.
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Tested for Compliance: Manufactured under strict quality control and compliance standards for industrial safety and performance.
FAQ
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What signals are typically transmitted using the 89477-40 Interconnect Cable?
The cable is primarily used for transmitting low-level analog signals from proximity probes, Proximitor sensors, and vibration transducers to monitoring systems with minimal loss and noise interference. -
Is the 89477-40 cable compatible with the Bently Nevada 3500 series?
Yes, it is fully compatible with both the 3300 and 3500 monitoring systems and supports connection to a wide range of Bently Nevada proximity probe configurations. -
How does the dual shielding system improve signal quality?
The combination of a foil and braided copper shield ensures superior rejection of external electromagnetic and radio-frequency interference, preserving the accuracy of vibration data. -
What type of connectors are used on this cable?
The cable uses factory-installed, high-reliability connectors designed to maintain signal integrity and prevent corrosion in industrial environments. -
Can this cable be used in high-temperature environments?
Yes, the insulation and jacket materials are rated for temperatures up to +200°C, allowing installation in areas exposed to heat or proximity to machinery. -
What is the recommended installation practice for optimal performance?
It is recommended to route the cable away from high-voltage power lines, secure it using vibration-resistant clamps, and maintain a minimum bend radius of 50 mm to protect the shielding structure. -
Does the cable provide protection against moisture and chemicals?
Yes, the outer jacket is made from a fluoropolymer compound that resists oil, moisture, and industrial solvents, ensuring consistent performance in harsh process environments. -
Can the 89477-40 cable be customized for special applications?
Yes, Bently Nevada offers custom cable lengths and connector configurations upon request to meet specific installation or system requirements. -
How does the cable maintain low capacitance and resistance values?
The use of precision copper conductors and controlled geometry during manufacturing ensures uniform impedance and stable electrical characteristics across its entire length. -
Is this cable suitable for vibration-critical applications in power plants?
Absolutely. The 89477-40 cable is specifically designed for power generation and process industries where vibration and displacement signals are vital for predictive maintenance and machine protection.
Related Models (Same Series or Function)
| Model Number | Description |
|---|---|
| 89477-10 | Interconnect Cable, 10 ft length |
| 89477-25 | Interconnect Cable, 25 ft length |
| 89477-30 | Interconnect Cable, 30 ft length |
| 89477-36 | Interconnect Cable, 36 ft length |
| 89477-50 | Interconnect Cable, 50 ft length |
| 89477-100 | Interconnect Cable, 100 ft length |
Popular Models from the Same Brand
| Model Number | Description |
|---|---|
| 330851-05-000-040-10-00 | 3300 XL 25 mm Proximity Probe |
| 330910-00-05-02-00 | 3300 NSv Proximity Probe |
| 330879-03-03 | 3300 XL 50 mm Proximitor Sensor |
| 330140-XX-XX-10-02-05 | Standard Proximity Probe |
| 3500/42M | Proximitor/Seismic Monitoring Module |
| 70M303-10-01-01-02 | Ranger Pro Wireless Condition Monitoring Sensor |
