Product Overview
The Bently Nevada 21747-040-00 Proximitor Probe Extension is a precision extension cable engineered for proximity transducer systems used in industrial vibration monitoring. It provides a dependable electrical connection between proximity probes and Proximitor sensors, enabling accurate signal transmission across extended installation distances.
Designed to support machinery protection and condition monitoring systems, this extension cable preserves signal integrity while maintaining the high performance standards associated with Bently Nevada proximity measurement technology. Its rugged construction and high-quality shielding make it suitable for demanding industrial environments where rotating equipment reliability is critical.
Technical Specifications
| Parameter | Specification |
|---|
| Manufacturer | Bently Nevada |
| Model | 21747-040-00 |
| Module Type | Proximitor Probe Extension |
| System Compatibility | Bently Nevada 7200 / 3300 XL Proximity Transducer Systems |
| Cable Type | Double-shielded coaxial cable |
| Connector Type | Miniature coaxial connectors |
| Characteristic Impedance | 50 Ω |
| Frequency Response | 0 Hz to 10 kHz |
| Signal Attenuation | < 2% across cable length |
| Insulation Resistance | >10⁹ Ω |
| Operating Temperature | −51 °C to +177 °C |
| EMI/RFI Shielding | High noise immunity |
Applications
The 21747-040-00 Proximitor Probe Extension is commonly used in industrial machinery protection and vibration monitoring systems where probes must be installed at a distance from the monitoring electronics.
Typical applications include:
-
Gas and steam turbine vibration monitoring
-
Compressor shaft displacement measurement
-
Pump condition monitoring systems
-
Generator rotor position monitoring
-
Industrial predictive maintenance programs
-
Rotating equipment protection systems
In these environments, accurate signal transmission is essential for early fault detection and machinery protection.
Advantages
Reliable Signal Integrity
The coaxial double-shielded cable structure ensures minimal signal loss and strong immunity to electromagnetic interference.
Flexible Installation Distance
The 4-meter cable length allows probes to be installed in optimal positions even when monitors are located remotely.
Industrial-Grade Durability
The cable jacket and internal conductors are designed to withstand vibration, heat, and demanding industrial environments.
Compatibility with Bently Nevada Systems
The extension cable integrates seamlessly with proximity probes and Proximitor sensors from the 7200 and 3300 XL monitoring platforms.
Enhanced Machinery Protection
Maintaining precise signal transmission enables reliable vibration monitoring and improved protection for critical rotating equipment.
Technical FAQs
1. What is the purpose of the 21747-040-00 extension cable?
It extends the connection between a proximity probe and the Proximitor sensor within a vibration monitoring system.
2. What is the cable length?
The extension cable length is 4 meters.
3. Which systems is this cable compatible with?
It works with Bently Nevada proximity systems such as the 7200 series and 3300 XL transducer systems.
4. What type of cable construction is used?
A double-shielded coaxial cable designed for high signal accuracy.
5. What is the frequency response range?
The cable supports signals from 0 Hz up to 10 kHz.
6. Can it operate in high-temperature environments?
Yes, it can operate between −51 °C and +177 °C.
7. Does the cable include armor protection?
This model is supplied without armor.
8. What type of measurements does the system support?
Static shaft position, dynamic vibration, and displacement measurements.
9. Which industries commonly use this extension cable?
Power generation, oil & gas, petrochemical processing, and heavy manufacturing.
10. Can the cable be replaced without recalibrating the entire system?
Generally yes, provided the system electrical length remains within the required configuration.
A DCS Q Co., Ltd. - PLC and DCS Industrial Control Equipment Wholesale
