21000-16-05-15-098-03-02 Bently Nevada Casing Vibration Probe

Product Overview

The Bently Nevada 21000-16-05-15-098-03-02 is a high-precision seismic velocity transducer engineered to capture absolute casing vibration on rotating machinery. As a core component of the 21000 series, this sensor converts mechanical motion into a calibrated electrical voltage proportional to vibration velocity. It integrates seamlessly with Bently Nevada 3300 and 3500 series monitoring systems, providing critical data for turbomachinery protection and early fault diagnostics. We offer this unit as 100% Brand New and Original, ensuring peak performance in mission-critical industrial environments.

Part Number Breakdown: 21000-16-05-15-098-03-02

Bently Nevada utilizes a specific alphanumeric coding system to define the mechanical and electrical characteristics of the 21000 series.

Technical Specifications

Engineering Advantages

• Decoupled Signal Accuracy: The 21000 series uses an internal moving-coil design that effectively filters out high-frequency noise. This ensures the transducer captures only relevant low-to-mid frequency vibrations associated with imbalance, misalignment, and bearing wear.

• Extreme Environment Resilience: The stainless steel housing and hermetic seals protect internal components from corrosive gases and moisture ingress. This makes the 21000-16-05-15-098-03-02 ideal for outdoor installations on cooling tower fans and pumps in chemical plants.

• Zero-Maintenance Passive Sensing: The velocity transducer generates its own signal through electromagnetic induction. This eliminates the need for external excitation power, reducing the complexity of field wiring and lowering the overall failure rate of the monitoring loop.

• Standardized Integration: The 98 mV/in/sec output matches the input requirements of most industrial monitors. This "plug-and-play" capability allows engineers to replace legacy sensors without recalibrating the entire monitoring rack.

FAQs

Q: Can I use the 21000-16-05-15-098-03-02 in hazardous locations?

A: Yes. This specific model includes agency approvals (designated by the "03" code) such as ATEX, IECEx, CSA, and UL, making it safe for use in explosive atmospheres common to oil and gas refineries.

Q: Does this sensor require an external Proximitor?

A: No. Unlike proximity probes, the 21000 series velocity transducer is self-contained. It generates a voltage signal directly from the mechanical vibration and connects straight to the monitor input.

Q: How do I ensure the best frequency response during installation?

A: You must mount the transducer on a flat, machined surface. Ensure the mounting stud is torqued to factory specifications to maintain a rigid mechanical bond, which prevents signal resonance at high frequencies.

Q: What are the main signs that a velocity sensor needs replacement?

A: Watch for signal drift, erratic "spiking" in the vibration data, or a significant drop in sensitivity. If the internal coil or suspension degrades over years of continuous service, the sensor will fail to track peak vibration levels accurately.