330171-00-20-05-02-00 | Bently Nevada 5mm Probe

Product Overview

When rotating machinery begins to vibrate abnormally, the 330171-00-20-05-02-00 from Bently Nevada provides the precise measurement you need to detect problems early. This 3300 5mm proximity probe is designed for non-contact vibration and position monitoring in critical industrial equipment. With its 1/4-28 UNF thread and unarmored construction, it offers a straightforward, reliable solution for integrating into existing monitoring systems.

The probe features a polyphenylene sulfide (PPS) tip and an AISI 304 stainless steel case, ensuring durability in demanding environments. Its miniature coaxial ClickLoc connector simplifies installation and maintains signal integrity. Whether you are upgrading an existing system or equipping new machinery, this probe delivers the performance and reliability that Bently Nevada is known for.

Technical Specifications

Understanding the exact specifications of the 330171-00-20-05-02-00 is essential for ensuring proper integration and operation. Here are the key parameters you can rely on:

Product Type: 3300 5mm Probe, 1/4-28 UNF thread, without armor

Unthreaded Length: 0.0 inches

Overall Case Length: 2.0 inches

Total Length: 0.5 meters (1.6 feet)

Connector: Miniature coaxial ClickLoc connector, standard cable

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 304 stainless steel (SST)

Weight: 0.323 kg

Probe Cable: 75 Ω triaxial, fluoroethylene propylene (FEP) insulated, available in lengths of 0.5, 1, 2, 5, or 9 meters

Probe Case Thread: 1/4-28, with maximum thread engagement of 0.375 inches

Power Requirement: -17.5 Vdc to -26 Vdc at 12 mA maximum consumption

Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage

Output Resistance: 50 Ω

Probe DC Resistance (0.5m): 7.45 ± 0.50 Ω

Probe Temperature Range: -35°C to +177°C (-31°F to +351°F)

Probe Case Torque: 5.1 N·m (45 in·lb) recommended, 7.3 N·m (65 in·lb) maximum

Minimum Cable Bend Radius: 25.4 mm (1.0 in)

These specifications ensure that the probe operates accurately within its intended range, providing reliable data for your monitoring system.

Industry Applications

The 330171-00-20-05-02-00 is ideal for monitoring vibration and shaft position in a variety of rotating machinery, including turbines, compressors, pumps, and motors. In power generation plants, it helps detect early signs of bearing wear or misalignment, allowing maintenance teams to schedule repairs before catastrophic failure occurs. In oil and gas facilities, the probe's robust construction withstands harsh conditions, ensuring continuous operation in critical processes.

For maintenance engineers, this probe offers a cost-effective solution for predictive maintenance programs. By integrating it into your condition monitoring system, you gain real-time visibility into machine health, reducing unplanned downtime and extending equipment lifespan.

Installation & Setup Guidance

Proper installation is crucial for accurate readings. When mounting the probe, ensure the mounting hole is drilled and tapped correctly. For a 1/4-28 thread, a #3 or larger tap drill is recommended. The maximum thread engagement is 0.375 inches, so avoid over-tightening. Apply the recommended torque of 5.1 N·m (45 in·lb) to secure the probe, but do not exceed 7.3 N·m (65 in·lb).

The miniature coaxial ClickLoc connector simplifies cable attachment. Ensure the cable bend radius is at least 25.4 mm (1.0 inch) to prevent damage. After installation, verify the gap between the probe tip and the target surface, typically set to 1.27 mm (50 mils) for optimal performance. Always follow the manufacturer's guidelines for calibration and setup.

Maintenance & Reliability

To ensure long-term reliability, inspect the probe and cable periodically for signs of wear or damage. The stainless steel case and PPS tip are designed to withstand harsh environments, but regular checks help identify potential issues early. Keep the connector clean and free from contamination to maintain signal integrity.

Because the probe operates in a wide temperature range (-35°C to +177°C), it is suitable for most industrial settings. However, avoid exposing the probe to temperatures below -34°C (-30°F), as this may cause premature failure of the pressure seal. Following these simple maintenance practices will maximize the service life of your probe and minimize downtime.

Selection Guide & Purchasing Advice

When selecting a replacement or new probe, verify that the total length, connector type, and thread size match your system requirements. The 330171-00-20-05-02-00 offers a 0.5-meter cable, which is suitable for many installations. If you need a different cable length, options are available in 1, 2, 5, or 9 meters.

Before ordering, confirm the compatibility with your existing Bently Nevada monitoring system. The ClickLoc connector is designed for secure, quick connections, but ensure your extension cables are compatible. For assistance with selection or to check current availability, contact BluePLC Industrial. Our team can help you find the right probe for your application and provide guidance on integration.

Please verify the current lifecycle status and availability of the 330171-00-20-05-02-00 with BluePLC Industrial before placing your order.