Product Overview

The Bently Nevada 330180-X1-05 145004-19 3300 XL Proximitor Sensor is a signal conditioning component used in industrial machinery protection and condition monitoring systems. It belongs to the Bently Nevada 3300 XL proximity transducer product family and is used to convert proximity probe measurements into electrical signals for machinery monitoring.

The Proximitor Sensor operates as part of an eddy-current proximity measurement system. Together with a compatible proximity probe and extension cable, it measures the distance between the probe tip and a conductive rotating shaft. Changes in this distance produce corresponding electrical output variations that represent shaft vibration or relative displacement.

The 3300 XL system is widely applied to critical rotating machinery, including steam turbines, gas turbines, centrifugal compressors, and industrial pumps. Its measurement signals can be connected to compatible monitoring channels for continuous condition assessment and machinery protection.

The ordering number 145004-19 is associated with a CN hazardous-area approval configuration in available product listings. The exact approval markings and model designation should be checked against the sensor nameplate before replacement, particularly where the equipment is installed in classified hazardous areas.

Technical Specifications

Product Features

• Eddy-Current Measurement Technology: Uses non-contact proximity measurement to monitor rotating shaft movement and relative displacement.
• 3300 XL System Integration: Operates with compatible proximity probes and extension cables within the Bently Nevada 3300 XL system.
• Signal Conditioning: Converts probe responses into proportional electrical output signals for machinery monitoring.
• 7.87 V/mm Nominal Scale Factor: Provides the sensitivity required for shaft displacement measurement.
• 2.0 mm Linear Measurement Range: Supports the nominal measurement range of the applicable 3300 XL 8 mm transducer configuration.
• High-Frequency Response: Supports measurement signals up to 10 kHz under specified operating conditions.
• X1 Mounting Configuration: Identifies the specified sensor mounting option.
• Hazardous-Area Configuration: The 145004-19 ordering designation is associated with CN approval markings; actual certification must be verified on the product.
• Continuous Machinery Monitoring: Supplies measurement signals for compatible vibration and displacement monitoring equipment.

Working Principle

The 330180-X1-05 operates through eddy-current proximity measurement. It forms part of a complete transducer assembly consisting of a Proximitor Sensor, extension cable, and proximity probe.

The proximity probe generates a high-frequency electromagnetic field at its sensing tip. When the probe is positioned near a conductive shaft surface, eddy currents are induced in the target material.

Changes in the distance between the probe tip and the shaft affect the electromagnetic response. The Proximitor Sensor processes this response and converts it into a proportional output voltage.

The nominal scale factor is 7.87 V/mm (200 mV/mil), with a nominal linear measurement range of 2.0 mm. This allows the monitoring system to interpret changes in probe-to-shaft distance as relative shaft displacement.

The resulting electrical signal is transmitted to compatible machinery monitoring equipment, where it can be used to evaluate shaft vibration, displacement, and operating conditions.

Typical Measurement Arrangement:

Rotating Shaft → 3300 XL Proximity Probe → Extension Cable → 330180-X1-05 Proximitor Sensor → Machinery Monitoring System

The recommended probe gap is approximately 1.27 mm (50 mil) for the applicable system configuration. Correct probe calibration, target material, cable compatibility, and installation conditions are necessary to maintain measurement accuracy.

Role in Bently Nevada 3300 XL Machinery Monitoring Architecture

The 330180-X1-05 functions as the signal conditioning component between the proximity probe assembly and the machinery monitoring system.

In a typical turbine or compressor monitoring installation, proximity probes are positioned near the rotating shaft to detect radial vibration or axial displacement. Their signals travel through extension cables to the Proximitor Sensor, which produces the corresponding electrical measurement output.

The monitoring equipment receives these signals and evaluates machinery operating conditions against configured alarm and protection limits.

Industrial Applications

Installation and Maintenance

1. Verify Model Identification: Confirm that 330180-X1-05 and ordering number 145004-19 match the required replacement configuration and product nameplate.
2. Check System Compatibility: Verify compatibility with the installed 3300 XL proximity probe, extension cable, and machinery monitoring equipment.
3. Isolate Electrical Connections: Follow the applicable machinery monitoring system procedures before disconnecting the existing sensor.
4. Inspect Mounting Arrangement: Check that the X1 mounting configuration matches the intended installation location.
5. Check Power Supply: Verify that the supply voltage meets the specified -17.5 to -26 VDC operating requirement.
6. Inspect Probe Connections: Examine the probe and extension cable connectors for contamination, corrosion, or mechanical damage.
7. Verify Cable Compatibility: Confirm that the extension cable and proximity probe belong to the appropriate transducer system configuration.
8. Check Probe Gap: Verify the installed probe gap against the required system calibration and measurement specifications.
9. Verify Electrical Output: Check the sensor output using suitable test equipment and the applicable calibration procedure.
10. Inspect Signal Quality: Investigate abnormal output fluctuations, electrical interference, or unstable measurement readings.
11. Perform Monitoring System Checks: Confirm that the connected monitoring channel displays the expected shaft displacement or vibration signals.
12. Document Maintenance Results: Record the model, ordering number, connected probe configuration, calibration results, and maintenance date.

Compatible System Components

Recommended Related Models

Key Advantages

• Supports non-contact shaft vibration and displacement measurement.
• Integrates with compatible Bently Nevada 3300 XL proximity transducer systems.
• Converts proximity probe responses into electrical monitoring signals.
• Provides a nominal 2.0 mm linear measurement range.
• Supports a nominal scale factor of 7.87 V/mm.
• Integrates with compatible machinery monitoring and protection equipment.
• Suitable for critical rotating machinery applications.

Technical FAQs

1. What is the relationship between 330180-X1-05 and ordering number 145004-19?

330180-X1-05 identifies the Proximitor Sensor model configuration, while 145004-19 identifies the associated ordering reference. Available product listings associate 145004-19 with a CN hazardous-area approval configuration. The exact model and approval designation should be checked against the product nameplate.

2. Which proximity probe system is required for the 330180-X1-05?

The sensor belongs to the Bently Nevada 3300 XL proximity transducer family. A compatible proximity probe and extension cable are required. The complete probe, cable, and sensor combination must match the applicable system configuration and calibration requirements.

3. What is the recommended probe gap for this Proximitor Sensor?

The nominal recommended probe gap is 1.27 mm (50 mil) for the applicable 3300 XL 8 mm measurement configuration. Correct gap adjustment is necessary to maintain the specified linear measurement range and output characteristics.

4. What should be checked if the sensor produces unstable measurement signals?

Inspect the probe gap, extension cable connections, power supply, grounding, and compatibility of the complete transducer assembly. Damaged cables, electrical interference, incorrect calibration, or unsuitable target material can also affect measurement stability.