BENTLY 3500/65-01-01 Output module

Bently Nevada Probes Overview

Bently Nevada is a leading provider of condition monitoring and protection solutions for rotating machinery. Their probes, particularly proximity transducers (also known as eddy current or non-contacting displacement sensors), are used to measure radial position, axial position, and velocity (through differentiation) of rotating shafts relative to their bearings or housings.

Product Detailed Description

• Function:

• Non-contact measurement of radial vibration of rotating shafts (relative to bearings or housings).

• Non-contact measurement of axial position of rotating shafts (relative to thrust bearings).

• When used in conjunction with speed or keyphasor sensors, can derive rotational speed and once-per-revolution phase information.

• Outputs a voltage signal proportional to the distance between the shaft and the sensor tip.

• Features:

• Non-contact measurement eliminates wear.

• High accuracy and resolution.

• Capable of operating in harsh industrial environments.

• Various sizes and configurations to suit different applications.

• Requires pairing with an oscillator/demodulator to provide usable output signals.

Product Parameters

As Bently Nevada offers a wide range of probe models, the following are some general parameters. Always refer to the official datasheet for the specific model:

• Sensor Type:

• Proximity transducer (eddy current principle).

• Measurement Range:

• Typically from a few millimeters to several tens of millimeters.

• Output Voltage:

• Typically in the range of 0 to -18 VDC (proportional to distance).

• Frequency Response:

• Typically from DC to several kHz.

• Linearity:

• Good linearity within the specified measurement range.

• Probe Diameter:

• Available in various sizes, such as 5mm, 8mm, 11mm, 25mm, etc.

• Cable Length:

• Available in various standard cable lengths.

• Thread Size:

• Available in various thread sizes to suit different mounting.

• Ambient Temperature:

• Operating temperature range typically from -51 °C to +177 °C (depending on the model).

• Material:

• Typically made of stainless steel or other corrosion-resistant materials.

Product Advantages

• Non-Contact Measurement:

• Eliminates physical contact between the sensor and the rotating part, thus avoiding wear and extending sensor life.

• High Accuracy and Resolution:

• Provides precise measurements of shaft position and vibration.

• Early Fault Detection:

• By monitoring changes in shaft vibration and position, potential mechanical failures can be detected early.

• Machine Protection:

• Critical input for triggering alarms and shutdowns to protect rotating machinery.

• Diagnostic Capability:

• The vibration and position data provided is essential for troubleshooting and condition assessment of rotating machinery.

• High Adaptability:

• Various sizes and configurations can be adapted to different machines and installation requirements.

Precautions

• Correct Selection:

• Choose the appropriate probe size, cable length, and thread type based on the specific application (e.g., machine type, measurement range, environmental conditions).

• Correct Installation:

• Follow Bently Nevada's installation guidelines, including setting the correct gap (typically mid-range gap).

• Pairing with Oscillator/Demodulator:

• The probe needs to be used with a compatible Bently Nevada oscillator/demodulator (e.g., 3300 XL 8 mm Proximity Transducer System) to provide usable displacement or vibration signals.

• Environmental Conditions:

• Ensure the operating environment is within the probe's specifications, avoiding excessive temperatures, corrosive substances, or physical damage.

• Cable Management:

• Route and secure cables properly to prevent damage or interference with signal transmission.

• Regular Inspection:

• Periodically inspect the probe and cable for physical damage or looseness.

Product Applications

• Protection of Large Rotating Machinery:

• Steam turbines, gas turbines, compressors, generators.

• Condition Monitoring:

• Monitoring vibration and shaft position of various rotating equipment for predictive maintenance.

• Bearing Monitoring:

• Monitoring oil film condition and journal position in fluid film bearings.

• Gearbox Monitoring:

• Monitoring vibration and position of shafts in gearboxes.

• Hydroelectric Power Generation:

• Monitoring the operating condition of water turbines.

• Specialty Machinery:

• Suitable for various other rotating equipment requiring precise non-contact displacement or vibration measurement.

Shipping Port: Xiamen, China