Description

The Bently Nevada 3300/16-12-01-01-00-00-00, also cataloged as the 3300/16 XY/Gap Dual Vibration Monitor, operates as a dedicated hardware component for continuous radial vibration and average shaft position processing within 3500 and legacy 3300 System networks.

Suffix Breakdown & Model Matrix

Hardware Specifications

Eddy-Current Probe Scaling and Validation

To maintain strict tracking accuracy over complex rotor dynamics, the internal signal conditioning circuitry interfaces with external proximity probe drivers. Consequently, this architecture requires precise calibration matching the 200 mV/mil transducer scaling curve. The microprocessor continuously digitizes the incoming dynamic waveform to calculate overall peak-to-peak displacement, while simultaneously extracting the DC bias voltage component. This voltage evaluation executes ongoing gap voltage validation down to a target -10 VDC baseline, confirming correct sensor positioning before applying threshold alarm logic.

Frequently Asked Questions

Q: How does the 3300/16 manage independent channel operation if one proximity probe fails?

A: When the monitor detects an out-of-range sensor voltage (e.g., transducer short or open circuit), it immediately triggers a NOT OK status for that specific channel. Afterward, the internal logic de-energizes the channel OK relay and illuminates the front panel fault LED, yet it maintains completely independent alarm processing on the remaining functional channel.

Q: What are the electrical parameters of the programmable recorder outputs on this card?

A: Technicians can jumper-configure the rear-panel recorder terminals to output +4 to +20 mA, 0 to -10 VDC, or +1 to +5 VDC. These signals map proportionally to the 0-150 um full-scale measurement range, enabling direct interface tracking into external DCS or PLC systems.

Field Installation Guidelines

Technicians must slide the 3300/16 card into the designated backplane slot of the instrument rack until the rear connectors interface securely with the mating pins. Next, fasten the front panel thumb screws to ground the aluminum chassis plate firmly to the structural framework. When completing the field wiring on the rear terminal blocks, ensure that the twin-axial or coaxial shield lines route to the dedicated chassis ground terminals. To prevent radio frequency interference from inducing noise onto the 200 mV/mil analog signal, avoid routing sensor input cabling adjacent to high-voltage AC lines. Finally, verify that the internal power supply configuration yields a stable -24 VDC voltage level to drive the external Proximitor sensors.