Description
Engineered to deliver high-integrity signal transmission within critical machinery protection architectures, the Bently Nevada 9571-02 facilitates low-noise connectivity between industrial transducers and monitoring systems. This heavy-duty cable features a 2-conductor twisted, shielded 22 AWG construction that actively minimizes electromagnetic interference (EMI) and cross-talk in harsh electromagnetic environments. Designed with a specialized 2-socket moisture-resistant female connector at one end and rugged terminal lugs at the other, this 2-foot cable ensures a highly secure electrical and mechanical interface for critical vibration monitoring points. It is built specifically for integration with local monitor racks, excluding use with the 21128 Velocity Transducer Housing.
Features
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High-Noise Rejection: Twisted-pair configuration combined with an integrated shield drain wire isolates fragile transducer signals from plant EMI/RFI.
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Rugged Termination: Equipped with a molded, moisture-resistant 2-socket female connector for reliable sensor-side sealing.
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Secure Panel Interfacing: Pre-terminated with high-quality terminal lugs for direct, reliable installation onto barrier strips and monitor backplanes.
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Precision Mechanics: Optimally sized 22 AWG conductors maintain electrical continuity and mechanical durability under structural vibration.
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Short-Run Optimization: 2-foot minimum length design prevents excess cable slack, keeping control cabinets organized and free of inductive loops.
Applications
- Machinery protection system loops (e.g., Bently Nevada 3500 and 1900 series monitors).
- Prox probes and vibration sensor-to-junction box connections.
- Balance-of-plant rotating machinery health monitoring.
- Short-run internal cabinet and local structural transducer routing.
Technical Specifications Table
| Parameter |
Specification Value |
| Manufacturer |
Bently Nevada |
| Part Number / SKU |
9571-02 |
| Cable Type |
Standard Interconnect Cable (2-Conductor Twisted, Shielded) |
| Conductor Gauge |
22 AWG |
| Cable Length |
2 feet (0.6 meters) |
| Connector End A |
2-socket moisture-resistant female connector |
| Connector End B |
Terminal Lugs |
| Country of Origin |
United States (USA) |
| Net Physical Weight |
0.11 kg (0.24 lbs) (Calculated) |
| Shipping Weight (Calculated) |
2.0 kg (including packaging and protective spooling) |
Connections and Interfaces
| Connector Pin / Terminal |
Function / Signal Assignment |
| Socket Pin A |
Signal High / Dynamic Signal (+) |
| Socket Pin B |
Signal Common / Return (-) |
| Terminal Lugs |
Termination points for terminal block connections at monitor panel |
| Outer Shield / Drain |
Grounding shield (MUST terminate only at the monitor common ground) |
Empirical Engineering Insights
Alternative Models & Compatibility
The 9571-02 interconnect cable is optimized for standard industrial monitor configurations. It is crucial to note that this specific standard cable is not compatible with the Bently Nevada 21128 Velocity Transducer Housing due to diameter clearances and physical connection constraints. If your plant utilizes the 21128 housing, you must source a specialized splash-resistant or armored cable assembly built specifically for that enclosure profile.
Application Pitfalls & Engineering Notes
Because this is a non-armored variant, care must be taken during routing. Avoid routing the 9571-02 directly parallel to high-voltage AC motor lines or variable frequency drive (VFD) output cables. Lack of mechanical armor means this cable should always be housed within dedicated, grounded conduit or cable trays when routed outside of localized, enclosed instrument cabinets to prevent physical shearing or crushing.
Commissioning & Wiring Tips
To ensure the integrity of high-frequency vibration diagnostics, always terminate the cable's shield drain wire at the monitor rack ground. Never ground the shield at both ends; double-grounding creates ground loops that inject 50/60 Hz electrical noise into the signal path, which can lead to false instrumentation trips or corrupted spectral data.
Installation Guidelines
CRITICAL WARNING: ELECTRICAL HAZARD
Before starting the installation or termination of the 9571-02 cable, ensure the corresponding monitor panel loop power is completely de-energized. Verify there is no residual energy on adjacent terminal strips. Failure to isolate power paths can lead to short circuits, damage to delicate input card electronics, or personnel injury.
1
Route the interconnect cable from the transducer mounting point to the monitor cabinet, ensuring the bend radius does not fall below 3 inches (76 mm) to prevent internal wire strain.
2
Align the keying of the 2-socket female connector with the transducer plug. Fully insert and thread the coupling collar to compress the moisture-resistant seal. Hand-tighten securely.
3
Connect the terminal lugs at the opposite end to the assigned screw terminal block of the monitor rack. Ensure the shield drain wire is connected cleanly to the instrument Earth terminal and insulated along the rest of its length.