Description

The Bently Nevada 3300/16-15-01-03-00-00-02, also cataloged as the 3300/16 XY Vibration Monitor, operates as a dedicated hardware component for continuous radial vibration monitoring within machinery protection systems. Specifically, the system processes high-frequency signals from two orthogonal proximity probe transducers mounted at 90-degree offsets on a single bearing housing, thereby resolving real-time rotor shaft dynamic orbits, peak-to-peak displacement values, and proportional 4-20 mA recorder outputs.

Suffix Breakdown & Model Matrix

The complete alphanumeric product code structures the specific hardware selection factory-installed into this vibration tracking block assembly:

Hardware Specifications

Machinery Monitoring and Transducer Interface Dynamics

The processing hardware executes real-time eddy-current probe scaling to accurately translate physical displacement into precise electrical potentials. Consequently, gap voltage validation enforces an operational baseline of -10 VDC for standard proximity sensors, which ensures that the transducer maintains its linear range during high-frequency rotor dynamics observations. Furthermore, dynamic signal isolation circuitry constrains cross-talk suppression to under -60 dB across adjacent measurement paths, thereby preventing electrical resonance interference from corrupting critical vibration calculations.

Frequently Asked Questions

Q: How does the 3300/16 handle an individual sensor failure without tripping the shared machinery interlock loop?

A: The monitor independently executes channel OK diagnostics on both the X and Y inputs by tracking the DC gap voltage. If one sensor fails out of limits, the monitor immediately suppresses that specific channel’s alarm logic and drops its OK relay, preventing false dual-conditional trip execution.

Q: What precise operational hardware behavior occurs when the system triggers the 02 Trip Multiply option?

A: Engaging the external Trip Multiply circuit modifies the internal active alarm thresholds by multiplying the preset Alert and Danger limit setpoints by a factor of three. Consequently, this action temporarily prevents machinery shutdown execution during expected, short-duration high-vibration events such as passing through critical rotor resonance speeds during startup.

Field Installation Guidelines

1. Field Wiring and Shield Terminal Isolation: Wire the transducer coaxial extension cables directly to the rear backplane terminal block assignment. Next, isolate the outer shield braid completely at the probe junction box, and then terminate the drain wire only at the designated rack ground bar to block induced magnetic field noise loops.
2. Orthogonal Sensor Orientation Alignment: Verify the physical proximity probes align at exactly 90-degree spatial angles relative to one another around the shaft diameter. In doing so, wire the true vertical or clockwise-ahead probe into the X channel input to ensure correct geometric orbit mapping.
3. Module Retaining Screw Engagement: Slide the monitor firmly along the guide tracks until the edge connectors lock flush with the backplane pin field. Afterwards, torque the upper and lower captive panel fasteners to establish full chassis ground bonding across the aluminum enclosure front plate.