The Bently Nevada 330701-00-50-50-02-CN is a high-performance eddy current probe from the renowned 3300 XL series. This particular model is designed for non-contact displacement and vibration measurements of rotating machinery. It operates by generating a high-frequency magnetic field from its probe tip, which induces eddy currents on the conductive shaft surface. The probe then measures the distance to the target based on the power loss. Therefore, it provides critical data for monitoring shaft relative vibration, thrust position, and eccentricity in turbines, compressors, and pumps. Its robust construction and reliable performance make it a standard choice in the petrochemical, power generation, and aerospace industries. This sensor ensures accurate data acquisition for predictive maintenance and machine protection systems.
This section details the key electrical and physical parameters for the Bently Nevada 330701-00-50-50-02-CN probe. It is important to verify these specifications match your system requirements.
Probe Tip Material: The tip is constructed from Polyphenylene sulfide (PPS), providing excellent chemical resistance and durability in harsh environments.
Probe Case Material: The case is manufactured from AISI 304 stainless steel (SST), offering high corrosion resistance and structural integrity.
Cable Specification: It uses a 75 Ω triaxial cable with fluoroethylene propylene (FEP) insulation, ensuring signal integrity over the cable's total length. The 330701-00-50-50-02-CN has a 5.0-meter cable, specifically designed for use with a five-meter Proximitor Sensor.
DC Resistance: For the 1.0-meter length option, the DC resistance from the center conductor to the outer conductor (RPROBE) is 5.9 ± 0.5 ohms.
Connector Type: This unit features a miniature coaxial ClickLoc connector with a standard cable, ensuring a secure and reliable connection.
Agency Approval: The "CN" suffix denotes a country-specific agency approval, confirming the probe meets regional regulatory standards.
Understanding the mechanical limits and environmental tolerance of the Bently Nevada 330701-00-50-50-02-CN is crucial for a successful installation.
Thread Size: The probe case uses a 1/2-20 UNF thread, and the maximum length of thread engagement is 0.750 inches.
Case Torque: The maximum rated torque for this probe case is 45.2 N•m (400 in•lb), while the recommended installation torque is 15.2 N•m (133 in•lb).
Connector Torque: The recommended torque for the connector is finger tight, with a maximum limit of 0.565 N•m (5 in•lb).
Minimum Bend Radius: The probe cable has a minimum bend radius of 25.4 mm (1.0 inch), both with and without stainless steel armor.
Temperature Range: The operating and storage temperature spans from -51°C to +177°C (-60°F to +351°F). However, exposing this probe to temperatures below -34°C (30°F) may cause premature failure of the pressure seal.
Pressure Capability: This 3300 XL probe is designed to seal differential pressure between the tip and the case using a Viton O-ring. Nevertheless, probes are not pressure tested prior to shipment. Contact the custom design department if your application requires a pressure seal test.
Proper installation of the Bently Nevada 330701-00-50-50-02-CN ensures optimal performance and longevity. First, always handle the probe cable with care to avoid sharp bends that could damage the FEP insulation. Next, when threading the probe into the mounting hole, apply the recommended torque of 15.2 N•m to avoid over-tightening. Additionally, ensure the target surface is clean and free of any coatings that might affect the eddy current measurement. Moreover, maintain the minimum bend radius of 25.4 mm during cable routing to prevent signal degradation. Finally, verify that the total cable length matches the Proximitor Sensor specification; this 5.0-meter unit is exclusively compatible with a five-meter Proximitor. Following these steps will help achieve accurate and repeatable measurement results.
1 x Bently Nevada 330701-00-50-50-02-CN Proximity Probe (complete with 5.0-meter cable and ClickLoc connector)
1 x Installation instruction sheet
All orders are dispatched using major international carriers, including FedEx, UPS, and DHL. Tracking numbers are provided upon shipment to ensure safe and timely delivery.
Is the Bently Nevada 330701-00-50-50-02-CN compatible with an 8-meter Proximitor?
No, this probe has a 5.0-meter total length and is specifically designed for use with a five-meter Proximitor Sensor only. Using it with other lengths may cause inaccurate readings.
What is the probe tip material, and why does it matter?
The tip is made of Polyphenylene sulfide (PPS). This material offers excellent resistance to chemicals and high temperatures, making the 330701-00-50-50-02-CN durable in harsh industrial environments.
Can I install this probe without additional armor?
Yes, this model comes without armor. However, if your application involves high abrasion or mechanical stress, consider using an armored version for extra cable protection.
What should I do if the pressure seal fails at low temperatures?
The probe is rated down to -51°C, but prolonged exposure below -34°C may damage the Viton O-ring. For low-temperature applications, consult the custom design department for a suitable seal test.
How should I clean the probe tip before installation?
Use a soft, lint-free cloth with isopropyl alcohol to gently wipe the PPS tip. Avoid using abrasive materials that could scratch the surface and affect measurement accuracy.
| Brand Name | |
| Model No. | 330701-00-50-50-02-CN |
| Product Type | Proximity Probes |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
