Product Overview

The Bently Nevada 16925-21 is a precision-engineered interconnect solution designed for the 3300 Proximity Transducer System. This cable serves as the primary data conduit between velocity transducers and Turbine Supervisory Instrumentation (TSI) monitoring racks. Engineered to maintain signal purity in high-interference zones, it supports the accurate relay of seismic vibration data, which is essential for determining the mechanical health of rotating assets. By providing a low-impedance path and robust shielding, the 16925-21 ensures that high-sensitivity measurements—typically around 200mV/in/s—reach the monitoring modules without degradation or environmental noise contamination.

Technical Build and Hardware Parameters

The physical and electrical architecture of the 16925-21 is optimized for long-term deployment in rigorous industrial sectors.

• Product Series: 3300 Proximity Transducer System

• Module Type: Interconnect Extension Cable

• Net Weight: 0.24 kg

• Physical Dimensions: 8.8 x 3.6 x 7 cm

• Shielding: Heavy-duty braided shielding for EMI/RFI rejection

• Signal Compatibility: Velocity transducers (4.5 Hz to 1000 Hz)

• Environmental Rating: Industrial grade for power plant and refinery temperatures

• Global Classification (HS Code): 8537101190

• Manufacturing Standards: Produced in the USA

Industrial Deployment Contexts

This interconnect component is a staple in predictive maintenance frameworks where machinery protection is a non-negotiable requirement. Key applications include:

• Steam and Gas Turbines: Connecting seismic sensors to monitoring racks to track casing vibration and bearing health.

• Reciprocating Compressors: Delivering high-fidelity data to TSI modules to identify early-stage mechanical looseness or valve issues.

• Pumping Stations: Monitoring large-scale industrial pumps where moisture and electromagnetic noise from motors are prevalent.

• Refinery Condition Monitoring: Facilitating secure signal runs in hazardous areas where durable jacketing and secure connector locking are mandatory for safety.

FAQ

Q: Can the 16925-21 be used with non-Bently Nevada velocity transducers?

A: This cable is specifically terminated and impedance-matched for Bently Nevada 16925-series sensors and 3300 Proximity Systems; using it with third-party hardware may result in incorrect sensitivity readings or connector mismatch.

Q: What makes this cable "Seismic" rated?

A: It is designed to carry signals from transducers measuring absolute vibration of a machine casing or structural components, which is often referred to as seismic monitoring in industrial contexts.

Q: Is the 16925-21 cable suitable for high-frequency vibration applications?

A: Yes, it effectively supports a frequency response range of 4.5 Hz to 1000 Hz, making it ideal for standard machinery protection and diagnostic analysis.

Q: Does this cable require specialized tools for installation?

A: No, it features specialized quick-connect/lock connectors designed for secure hand-tightened attachment, though proper cable routing and support are recommended to prevent mechanical stress.

Q: How does the shielding on the 16925-21 impact data accuracy?

A: The heavy-duty shielding acts as a Faraday cage, preventing external electrical noise from motors or radio equipment from "bleeding" into the vibration signal, which preserves the 200mV/in/s sensitivity accuracy.