11mm Proximity Probe | Bently Nevada 330701-00-15-50-01-CN

Bently Nevada 330701-00-15-50-01-CN Proximity Probe

Product Introduction

The Bently Nevada 330701-00-15-50-01-CN belongs to the trusted 3300 XL series, widely used for eddy current-based measurements on rotating equipment. This probe delivers exceptional linearity and stability for shaft relative vibration, thrust position, and eccentricity monitoring. Its design incorporates a rugged PPS tip and a 304 stainless steel case, ensuring longevity in severe service conditions. Furthermore, the 5.0-meter cable length is exclusively matched for use with a five-meter Proximitor Sensor, guaranteeing system compatibility. Consequently, this sensor provides accurate, repeatable data essential for predictive maintenance and machine protection strategies across power generation, oil and gas, and heavy industry sectors.

Technical Specifications

This section outlines the critical electrical and physical characteristics of the Bently Nevada 330701-00-15-50-01-CN probe. Always confirm these values against your existing system requirements before installation.

Probe Tip Material: The sensing tip is fabricated from Polyphenylene sulfide (PPS), which offers outstanding chemical resistance and thermal stability in aggressive environments.
Probe Case Material: AISI 304 stainless steel (SST) forms the case, delivering excellent corrosion protection and mechanical strength for long-term service.
Cable Specification: A 75 Ω triaxial cable with fluoroethylene propylene (FEP) insulation provides superior signal transmission integrity. The 330701-00-15-50-01-CN includes a 5.0-meter cable, designed solely for compatibility with five-meter Proximitor Sensors.
DC Resistance: For the 1.0-meter length variant, the DC resistance between the center conductor and outer conductor (RPROBE) measures 5.9 ± 0.5 ohms.
Connector Type: This model features a miniature coaxial ClickLoc connector equipped with a connector protector, offering enhanced mechanical protection and secure mating.
Agency Approval: The "CN" suffix indicates country-specific agency certification, ensuring regulatory compliance for regional applications.

Mechanical and Environmental Parameters

Understanding the mechanical constraints and environmental tolerances of the Bently Nevada 330701-00-15-50-01-CN is vital for proper installation and reliable operation.

Thread Size: The probe case uses a 1/2-20 UNF thread, with a maximum thread engagement length of 0.750 inches.
Case Torque: The maximum rated torque for this case type is 45.2 N•m (400 in•lb), while the recommended installation torque is 15.2 N•m (133 in•lb) to prevent damage.
Connector Torque: Finger-tight is the recommended torque for the connector, with an absolute maximum of 0.565 N•m (5 in•lb).
Minimum Bend Radius: The probe cable maintains a minimum bend radius of 25.4 mm (1.0 inch), applicable both with and without stainless steel armor.
Temperature Range: Operating and storage temperatures span from -51°C to +177°C (-60°F to +351°F). However, prolonged exposure below -34°C (30°F) can compromise the Viton O-ring pressure seal.
Pressure Sealing: This 3300 XL probe utilizes a Viton O-ring to seal differential pressure between the tip and case. Nevertheless, units are not pressure tested before shipping; contact the custom design department if a pressure seal test is required for your specific application.

Installation Guidance

Correct installation of the Bently Nevada 330701-00-15-50-01-CN ensures optimal measurement accuracy and extends service life. First, carefully inspect the probe and cable for any shipping damage before proceeding. Next, apply the recommended 15.2 N•m torque when threading the probe into the mounting hole to avoid over-compression. Additionally, route the cable with a bend radius no smaller than 25.4 mm to preserve signal quality and prevent insulation cracking. Moreover, keep the target surface clean and free from paint or coatings that could interfere with eddy current measurement. Finally, verify that your system uses the correct five-meter Proximitor Sensor, as this probe is not interchangeable with other cable lengths. Adhering to these practices will yield consistent and dependable performance.

Packaging List

• 1 x Bently Nevada 330701-00-15-50-01-CN Proximity Probe (including 5.0-meter cable and ClickLoc connector with protector)

• 1 x Quick-start installation guide

Frequently Asked Questions (FAQ)

1. Is the Bently Nevada 330701-00-15-50-01-CN compatible with a 9-meter Proximitor?
   No, this unit features a 5.0-meter total cable length and is exclusively designed for use with a five-meter Proximitor Sensor. Mismatched lengths will cause calibration errors.

2. What is the benefit of the connector protector on this model?
   The ClickLoc connector with protector offers added mechanical shielding against accidental impacts and contamination. This feature makes the 330701-00-15-50-01-CN more durable in rough field conditions.

3. Can I use this probe in a high-pressure environment?
   The probe uses a Viton O-ring for differential pressure sealing, but it is not pressure tested at the factory. For high-pressure applications, please consult the custom design department for a tailored seal test.

4. What happens if I exceed the recommended torque during installation?
   Over-tightening beyond 15.2 N•m may strip the threads or deform the case, leading to measurement inaccuracies or permanent damage. Always use a torque wrench for precise installation.

5. How should I store the probe if not used immediately?
   Store the Bently Nevada 330701-00-15-50-01-CN in a clean, dry environment within the -51°C to +177°C range. Avoid placing heavy objects on the cable to prevent kinking or insulation damage.