Description
Bently Nevada 135305-01 Dual Vibration XY/Gap Monitor
The Bently Nevada 135305-01, also cataloged as the 135305-01 Dual Vibration XY/Gap Monitor, operates as a dedicated hardware component for continuous radial vibration and shaft gap measurement within 3300/16 series monitoring systems.
Hardware Specifications
| Parameter |
Specification |
| Model |
135305-01 |
| Brand |
Bently Nevada |
| Origin |
USA |
| Weight |
2.2 lbs |
| Dimensions |
Standard 3300/16 module size |
| Operating Temp |
–40 to +85 deg C |
| Relative Humidity |
0–95% non-condensing |
| Power Consumption |
Industry-standard for 3300/16 modules |
| Measurement Channels |
2 independent channels (X and Y axes) |
| Functions |
Radial vibration + shaft gap (displacement) |
| Inputs |
2 proximity probes / Proximitor sensors |
| Frequency Response |
1 Hz–4 kHz (option-dependent) |
| Bandwidth |
Up to 24 kHz |
| Sampling Rate |
Up to 50 kHz per channel |
| Resolution |
16-bit |
| Outputs |
Programmable: 4–20 mA, 0 to –10 Vdc, +1 to +5 Vdc |
| Recorder Outputs |
Dedicated, short-circuit protected |
| Hot-Swap |
Compatible within 3300 series racks |
| Compliance |
API 670, CSA, ATEX, CE |
Eddy-Current Probe Scaling & Rotor Dynamics
The 135305-01 module implements precise eddy-current probe scaling to ensure accurate radial vibration and shaft gap measurements. Gap voltage validation is maintained at –10 VDC targets for all Proximitor channels. Rotor dynamics signals are captured with 16-bit resolution, and cross-talk suppression is applied to prevent interference between X and Y channels. Programmable low-frequency filtering allows monitoring of slow-speed machinery without loss of diagnostic fidelity.
Frequently Asked Questions (FAQ)
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, maintaining all channel calibration and alarm settings.
Q: What is the maximum sampling rate per channel?
A: Each channel can sample up to 50 kHz, supporting high-speed vibration monitoring.
Q: Does the module support independent gap alarm thresholds?
A: Yes, separate ALERT and DANGER setpoints can be configured for both vibration and displacement channels.
Field Installation Guidelines
-
Install module in a 3300/16 rack with correct slot orientation; ensure proper mechanical retention.
-
Connect Proximitor probes with shielded cabling; terminate shields to system ground.
-
Maintain separation between sensor cabling and high-current or high-voltage lines to reduce EMI.
-
Verify probe excitation voltage and cable continuity before system power-up.
-
Use manufacturer-recommended torque for all terminal connections.
-
Ensure ambient conditions comply with –40 to +85 deg C operating range and 0–95% relative humidity.
