330171-00-20-90-02-00 | Bently Nevada 5mm Probe 9m

Why Choose the Bently Nevada 330171-00-20-90-02-00 5mm Probe?

When machinery vibration threatens uptime, accurate measurement is non-negotiable. The Bently Nevada 330171-00-20-90-02-00 delivers the precision you need for reliable condition monitoring. This 3300 series 5mm probe is engineered for demanding industrial environments, offering a robust design that withstands harsh conditions while providing consistent data.

Technical Specifications Breakdown

This probe is built to perform. Here are the key specifications you can rely on:

Probe Type: 330171 3300 5mm Probe, 1/4-28 UNF thread, without armor

Total Length: 9.0 meters (29.5 feet) – ideal for routing to monitoring systems

Connector: Miniature coaxial ClickLoc connector with standard cable for secure, quick connections

Probe Tip Material: Polyphenylene sulfide (PPS) – offers excellent chemical resistance and thermal stability

Probe Case Material: AISI 304 stainless steel (SST) – provides corrosion resistance and durability

Weight: 0.323 kg – lightweight yet rugged

Thread: 1/4-28 UNF with a maximum thread engagement of 0.375 inches

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

Output Resistance: 50 Ω

Probe DC Resistance: 9.87 Ω ± 0.90 for the 9.0 m length

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

Cable: 75 Ω triaxial, FEP insulated, available in lengths of 0.5, 1, 2, 5, or 9 meters

Tensile Strength: 222 N (50 lbf) from probe case to probe lead and from probe lead to extension cable connectors

Connector Material: Gold-plated brass or gold-plated beryllium copper

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

Connector-to-Connector Torque: Maximum 0.565 N·m (0.42 ft·lbf)

Minimum Cable Bend Radius: 25.4 mm (1.0 in)

These specifications ensure that the 330171-00-20-90-02-00 provides accurate, stable readings even in challenging conditions.

Real-World Applications

This probe excels in a variety of industrial settings where precise vibration monitoring is critical:

Rotating Machinery Monitoring: Ideal for measuring shaft vibration in turbines, compressors, and pumps. The 5mm probe size and 9-meter cable length make it versatile for different machine configurations.

Predictive Maintenance Programs: By providing accurate data on machine health, this probe enables maintenance teams to detect issues early, reducing unplanned downtime and extending equipment life.

Process Control: In industries like oil and gas, power generation, and manufacturing, the probe helps maintain optimal operating conditions by monitoring vibration levels in real time.

Installation & Setup Guidance

Proper installation is crucial for accurate measurements. Follow these guidelines for best results:

Mounting Hole Preparation: When drilling and tapping a mounting hole for a 1/4-28 probe, use a #3 or larger tap drill. Ensure the thread engagement does not exceed 0.375 inches to avoid damage.

Torque Application: Apply the recommended probe case torque of 5.1 N·m (45 in·lb). Do not exceed 7.3 N·m (65 in·lb) to prevent thread damage.

Cable Routing: Maintain a minimum cable bend radius of 25.4 mm (1.0 in) to prevent cable damage and signal degradation.

Gap Setting: For optimal performance, gap the probe at 1.27 mm (50 mils) when using an AISI 4140 steel target, as specified in the standard test conditions.

Maintenance & Reliability

Regular inspection ensures long-term reliability. Check the probe cable for wear or damage, especially at connection points. Verify that the connector torque remains within the recommended range. The probe is designed to operate in temperatures from -35°C to +177°C, but avoid exposing it to temperatures below -34°C (-30°F) as this may cause premature failure of the pressure seal. Periodic calibration checks with a certified proximity transducer system will maintain measurement accuracy.

Compatibility & Integration

This probe is part of the Bently Nevada 3300 series, designed to work seamlessly with compatible proximitor sensors and extension cables. The 75 Ω triaxial cable ensures signal integrity over long distances. The miniature coaxial ClickLoc connector provides a secure, reliable connection that resists loosening from vibration. For a complete measurement system, pair this probe with a Bently Nevada proximitor sensor and extension cable that match the required cable length and connector type.

Selection Guide & Purchasing Advice

Before ordering, verify the following to ensure the correct fit:

Total Length: Confirm that the 9.0-meter cable length suits your installation layout.

Thread Type: This probe has 1/4-28 UNF threads – ensure your mounting hole matches.

Agency Approvals: This model has "Not Required" for agency approvals – check if your site requires any certifications.

Armor: This probe is without armor – if you need additional protection, consider an armored version.

At BluePLC Industrial, we stock the Bently Nevada 330171-00-20-90-02-00 and can advise on compatible components. Contact us for availability and to discuss your specific application needs.

Conclusion

When you need reliable vibration monitoring, the Bently Nevada 330171-00-20-90-02-00 5mm probe delivers the performance and durability you expect. Its robust construction, precise specifications, and easy integration make it a smart choice for maintaining machinery health. Trust BluePLC Industrial for genuine parts and expert guidance.