Bently Nevada 135137-01

Parameters

Advantages & Features

• High Channel Density – The Bently Nevada 135137-01 provides 4 vibration channels in a single slot, reducing rack space for large machinery monitoring systems.

• Multi-Sensor Compatibility – Supports proximity probes, accelerometers, and velocity sensors, providing flexibility for different machinery types.

• Programmable Integration – The Bently Nevada 135137-01 can output displacement, velocity, or acceleration, depending on the application.

• Advanced Filtering – Programmable low-pass and high-pass filters reject noise and isolate specific frequency bands for fault diagnosis.

• Comprehensive Diagnostics – Continuous sensor open/short detection and signal integrity monitoring ensure reliable protection.

• SIL 2 Capable – Suitable for safety-critical vibration protection with appropriate voting.

Application Cases

• Turbine Radial Vibration – Monitors 4 radial vibration probes on a gas turbine shaft for protection and diagnostics.

• Compressor Vibration Monitoring – Tracks vibration on multiple compressor stages for surge detection and predictive maintenance.

• Generator Vibration – Monitors vibration on generator bearings for rotor stability assessment.

• Motor and Pump Monitoring – General-purpose vibration monitoring for critical rotating equipment.

Competitor Comparison

The Bently Nevada 135137-01 is a proven solution for multi-channel vibration monitoring in the 3500 series platform, offering flexible sensor support and advanced filtering.

Selection Suggestions

• Choose for Bently Nevada 3500 series systems requiring 4-channel vibration monitoring with multi-sensor compatibility.

• For systems with proximity probes only, the lower-cost 135137-02 (proximity-only variant) may be sufficient.

• For SIL 2 applications, use with voting logic (2-out-of-3) and proof-testing every 24 months.

• Configure filtering based on machine type: 10kHz for high-speed turbines, 1kHz for slow-speed pumps.

• Pair with compatible sensors (Bently Nevada 3300 XL, accelerometers, or velocity sensors).

Precautions

• Sensor Compatibility – The Bently Nevada 135137-01 supports multiple sensor types, but each channel must be configured for the correct sensor type. Incorrect configuration will cause inaccurate readings.

• Proximity Probe Wiring – For proximity probes, use Bently Nevada extension cables with proper connectors. Maximum cable length: 9m for 3300 XL.

• Accelerometer Wiring – IEPE accelerometers require constant current excitation (2–4mA). The Bently Nevada 135137-01 provides this; ensure the sensor is compatible.

• Grounding – Proper grounding is critical to prevent noise pickup. Connect sensor cable shields to the module common terminal at the module end only.

• Filter Selection – For low-speed machines (<600 RPM), use the 1kHz low-pass filter; for high-speed (>10,000 RPM), use 10kHz.

• Integration Settings – Incorrect integration can amplify low-frequency noise. Use displacement for proximity probes, velocity for accelerometers.

• Calibration – Factory calibration valid for 24 months. Recalibrate using a certified shaker table or signal calibrator.

• ESD Handling – Use ESD-safe practices when handling the Bently Nevada 135137-01. Vibration inputs are sensitive to electrostatic discharge.