Description

The Bently Nevada 135305-01 serves as the primary 3300/16 Dual Vibration XY/Gap Monitor utilized to execute non-contact displacement, radial vibration, and average shaft position tracking across Bently Nevada 3300 Series Machinery Protection platforms. Specifically, this plug-in module processes analog signals from two independent proximity probe systems to monitor rotor parameters along orthogonally configured X and Y radial axes.

Hardware Specifications

Transducer Interface & Mechanical Monitoring Characteristics

This monitor drives a stabilized instrumentation interface to sustain precise eddy-current probe scaling when decoding dynamic target anomalies. The internal processing network executes steady-state demodulation to supply immediate gap voltage validation (-10 VDC targets) across both field channels, safeguarding sensor placement within standard linear boundaries. Furthermore, the active filtering matrix introduces native cross-talk suppression between closely coupled X-Y channels, shielding raw dynamic waveforms from high-frequency external emissions to accurately map rotor dynamics.

Frequently Asked Questions

Q: How does the 135305-01 respond if a field signal line falls outside calibrated voltage thresholds?

A: The internal OK detection circuit monitors lower and upper voltage boundaries. If a probe failure or broken cable disrupts the signal, the monitor instantly de-energizes the channel OK LED and deactivates the corresponding rack OK relay drive to inhibit false trips.

Q: Can this module monitor slow-turning industrial turbomachinery operating below 1000 rpm?

A: Yes. While the standard module utilizes a 4 Hz low-frequency filter threshold, the internal jumper configuration can be adjusted to activate a 1 Hz low-frequency limit optimized for low-speed rotor track profiles.

Field Installation Guidelines

1. Guide the 135305-01 monitor card into its designated slot within the 3300 series rack chassis until the backplane connectors engage securely.
2. Terminate the input coax extensions from the external Proximitor sensors directly to the matching rear I/O module terminal blocks.
3. Configure the hardware output jumpers to select the required analog scale format (+4 to +20 mA, 0 to -10 VDC, or +1 to +5 VDC) prior to system initialization.
4. Ground the field transducer cable shield elements exclusively at the rack common chassis ground block to suppress ambient electromagnetic interference.