Bently Nevada 21747-045-01 Proximitor Probe Extension Cable

The Bently Nevada 21747-045-01 is a high-integrity extension cable designed to function as part of a complete proximity transducer system. Used specifically with Bently Nevada 7200 and 3300 series systems, this cable bridges the probe and the proximitor sensor, ensuring accurate signal transmission over extended distances without compromising system performance or linearity.

This 4.5-meter (177 inches) coaxial extension cable is equipped with industry-standard connectors and robust shielding to maintain signal integrity in high-noise industrial environments. Built with high-quality materials, it meets the demanding conditions found in industries such as oil & gas, power generation, and chemical processing.

Its critical role in machinery protection and vibration monitoring systems makes the 21747-045-01 a trusted component for maintaining the health of rotating equipment.

Technical Specifications

Applications

The 21747-045-01 extension cable is specifically designed for use in proximity measurement systems where long-distance signal transmission between the probe and proximitor is required. Typical use cases include:

• Turbomachinery Monitoring: Allows flexibility in mounting proximitor sensors away from the harshest zones near the shaft.

• Remote Sensor Installations: Facilitates installations where probes are mounted deep within machines or enclosures.

• Power Generation Units: Used in gas turbines, steam turbines, and hydro units for reliable signal routing.

• Chemical and Refining Plants: Allows secure cabling from probes inside high-pressure vessels to control panel-mounted proximitor modules.

• Compressor Stations: Supports accurate vibration measurement from inaccessible probe mounting points.

Product Advantages

• Optimized Length: Pre-cut to 4.5 meters (177 inches), balancing reach and signal performance for common industrial needs.

• High Signal Integrity: Shielded coaxial design ensures precise and interference-free transmission.

• Thermal Resilience: Withstands temperatures up to 85°C, making it suitable for high-heat environments.

• Mechanical Durability: Thermoplastic jacket and braided shield provide excellent abrasion and crush resistance.

• Installation Flexibility: Coaxial connectors are designed for fast, reliable field connections without soldering.

• System Compatibility: Fully matched to Bently Nevada 7200 and 3300 systems, ensuring seamless calibration and performance.

• Minimal Signal Loss: 50-ohm impedance matching maintains system accuracy across the full length.

• Long Service Life: Built to last in corrosive and mechanically challenging environments.

• Field Replaceable: Easily swapped in the field with minimal tool requirements and no recalibration needed.

• Globally Approved: Meets CE and RoHS directives, ensuring regulatory compliance in global markets.

Frequently Asked Questions (FAQ)

1. Q: What systems are compatible with the 21747-045-01 cable?

   A: It is compatible with Bently Nevada 7200 and 3300 proximity transducer systems.

2. Q: What is the exact length of the cable?

   A: The cable is 4.5 meters, which equals 177 inches.

3. Q: Can I use this cable with non-Bently Nevada probes?

   A: It is not recommended. The cable is specifically matched in impedance and materials to Bently Nevada systems.

4. Q: Is the cable resistant to electromagnetic interference?

   A: Yes. It features full shielding with a braided copper layer to minimize EMI.

5. Q: What is the cable’s maximum temperature rating?

   A: It can operate reliably at up to +85°C (185°F).

6. Q: How is the cable terminated?

   A: With miniature coaxial connectors, male on one end and female on the other.

7. Q: Does the cable support hazardous area installation?

   A: It depends on the installation method and location but is built with industrial-grade flame-retardant materials.

8. Q: Can this cable be shortened or cut?

   A: No. Length is factory calibrated. Cutting the cable will affect system accuracy and invalidate calibration.

9. Q: How is the cable installed in a typical setup?

   A: It connects between the proximity probe and the proximitor sensor, routed through protective conduit where necessary.

10. Q: Does the cable require regular maintenance?

    A: Other than visual inspection for wear, it requires minimal maintenance due to its rugged construction.