Reliable Signal Conversion for Rotating Equipment Protection
The 18745-03-00 7200 XL Proximitor Sensor functions as the interface between the proximity probe assembly and the machinery monitoring system. It receives the probe’s eddy-current signal, processes the gap-to-voltage relationship, and delivers a proportional output representing shaft movement.
This module is commonly integrated with Bently Nevada proximity probes and extension cables to create a complete measurement chain for:
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Radial shaft vibration monitoring
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Axial thrust position measurement
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Rotor displacement analysis
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Mechanical fault detection
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Turbine and compressor protection systems
The compact design and stable electrical characteristics make it suitable for continuous operation in industrial control cabinets and machinery monitoring installations.
Technical Specifications
| Parameter | Details |
|---|
| Manufacturer | Bently Nevada |
| Model Number | 18745-03-00 |
| Product Type | 7200 XL 5 & 8 mm Proximitor Sensor |
| Sensor Technology | Eddy Current Proximity Signal Conditioning |
| Compatible Probe Size | 5 mm and 8 mm proximity probes |
| System Series | 7200 Series |
| Measurement Function | Shaft displacement, vibration, and position |
| Measurement Range | Approx. 80 mils (2 mm) |
| Scale Factor | 200 mV/mil (7.87 V/mm) |
| Power Supply | -24 Vdc nominal |
| Input Signal Range | +10 V to -24 V |
| Output Type | Voltage proportional signal |
| Frequency Response | DC to 10 kHz |
| Operating Temperature | Approx. -45°C to +65°C |
| Installation Type | Control cabinet / monitoring rack installation |
| Dimensions | Approx. 102 × 114 × 132 mm |
| Weight | Approx. 0.23 kg |
| Cable System Compatibility | 7200 Series probe and extension cable assemblies |
Industrial Applications
Designed for Critical Machinery Monitoring
The Bently Nevada 18745-03-00 Proximitor Sensor is widely used in industries where accurate vibration and shaft position information is essential for safe and efficient operation.
| Industry | Typical Equipment |
|---|
| Power Generation | Steam turbines, gas turbines, generators |
| Oil & Gas | Compressors, pumps, rotating process equipment |
| Petrochemical | High-speed rotating machinery |
| Manufacturing | Motors, gearboxes, production equipment |
| Marine | Propulsion systems and auxiliary machinery |
Typical applications include:
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Bearing vibration monitoring
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Rotor position measurement
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Shaft displacement detection
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Turbine protection systems
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Predictive maintenance programs
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Machinery condition analysis
The sensor is especially valuable for large rotating assets where early identification of imbalance, misalignment, shaft movement, or bearing problems can prevent costly failures.
Key Performance Advantages
Accurate Proximity Signal Processing
The 18745-03-00 provides stable conversion between probe output signals and monitoring system inputs, ensuring reliable measurement of shaft movement under changing operating conditions.
Flexible 5 mm and 8 mm Probe Compatibility
Supporting both 5 mm and 8 mm proximity probe applications, this module offers greater flexibility when maintaining existing machinery monitoring installations.
Reliable Industrial Operation
Built for continuous-duty machinery applications, the sensor delivers dependable performance in demanding environments such as power plants, refineries, and heavy industrial facilities.
Improved Asset Protection
By providing accurate vibration and displacement information, the module helps maintenance teams identify developing mechanical issues before they lead to equipment damage.
Easy Integration With Existing Systems
The 7200 XL design allows straightforward integration with compatible Bently Nevada monitoring solutions, supporting efficient upgrades and replacement strategies.
Technical FAQs
Q1: What is the main function of the Bently Nevada 18745-03-00?
The module conditions proximity probe signals and converts them into proportional electrical outputs for vibration and displacement monitoring.
Q2: Which probes are compatible with this Proximitor Sensor?
The 18745-03-00 supports compatible Bently Nevada 5 mm and 8 mm proximity probe systems.
Q3: Is this sensor used for vibration measurement?
Yes. It is commonly used for radial vibration, shaft displacement, and rotor position monitoring.
Q4: What measurement technology does this module use?
It operates with eddy-current proximity measurement technology.
Q5: What is the typical measurement range?
The system provides an approximately 80 mil (2 mm) linear measurement range.
Q6: What power supply does the module require?
The sensor typically operates with a -24 Vdc supply.
Q7: Can this module replace older 7200 Series Proximitor sensors?
Replacement compatibility depends on the complete probe, cable, and monitoring system configuration.
Q8: Where is the 18745-03-00 normally installed?
It is typically installed inside machinery monitoring cabinets, instrument panels, or protection system racks.
Q9: What equipment commonly uses this sensor?
Common applications include turbines, compressors, pumps, generators, and large industrial motors.
Q10: What maintenance is recommended for this module?
Regular inspection of wiring, power supply stability, probe connections, and output signal quality is recommended to maintain reliable operation.
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