Bently Nevada 135305-01 3300/16 Dual Vibration XY/Gap Monitor

Bently Nevada 135305-01 3300/16 Dual Vibration XY/Gap Monitor

The Bently Nevada 135305-01, also cataloged as the 3300/16 Dual Vibration XY/Gap Monitor, operates as a dedicated hardware component for continuous radial vibration and shaft gap measurement within 3300 series monitoring systems.

Hardware Specifications

Bently Nevada Mechanical Monitoring & TSI Characteristics

The 135305-01 module implements precise eddy-current probe scaling to ensure accurate radial vibration and shaft gap measurements. The monitor accepts inputs from two proximity probe/Proximitor devices and continuously detects two independent channels of radial vibration and average shaft position (gap). It is designed to maintain gap voltage validation at -10 VDC targets for all connected Proximitor channels. Rotor dynamics signals are processed to provide both static position and dynamic vibration data, with internal circuitry ensuring cross-talk suppression between X and Y channels. The module is fully compatible with 3300 series rack architectures and supports controlled hot-swap operations.

Frequently Asked Questions

Q: Can this module be hot-swapped without shutting down the 3300/16 rack?

A: Yes, the 135305-01 supports controlled hot-swap within 3300 series racks, allowing for maintenance without interrupting the rack's primary monitoring functions.

Q: What is the purpose of the GAP switch on the front panel?

A: The GAP switch allows the user to display the probe gap value (the distance between the probe face and the shaft) for each channel on the front panel meter, measured as a negative DC voltage.

Field Installation Guidelines

1. Wiring Configuration: Connect two proximity probes to the X and Y channel inputs. Ensure shielding is continuous and grounded at the monitoring instrument end to prevent noise.
2. Alarm Configuration: Use the front panel interface to set GapAlert setpoints. Alert LEDs will activate when the measured gap level equals or exceeds the programmed window limits for 6 seconds.
3. Recorder Outputs: Utilize the dedicated recorder outputs for external data logging. These outputs are short-circuit protected and independent per channel, ensuring that a fault in the logging path does not impact the monitor's alarm or protection logic.
4. Low-Frequency Limits: For applications with shaft rotational speeds below 1,000 rpm, configure the monitor to the 1 Hz (60 CPM) option to ensure diagnostic fidelity.