Bently Nevada 330702-01-20-10-02-00 Proximity Probe

3300 XL 11mm Armored Probe, Bently Nevada 330702

Product Introduction

The Bently Nevada 330702-01-20-10-02-00 is a rugged 3300 XL series proximity probe designed for non-contact vibration and position sensing. This armored version includes stainless steel braiding over the cable for extra mechanical protection. It features a PPS probe tip and a 304 stainless steel case. The 1.0-meter total length comes with a standard coaxial ClickLoc connector. This configuration is ideal for installations where cable abrasion or impact is a concern.

Technical Specifications

This 3300 XL 11 mm probe delivers consistent electrical performance. For its 1.0-meter length, the DC resistance from the center conductor to the outer conductor (RPROBE) is 5.9 ± 0.5 ohms. The cable is a 75 Ω triaxial type with FEP insulation, ensuring signal stability over temperature variations.

The probe tip uses Polyphenylene sulfide (PPS), which offers excellent resistance to chemicals and wear. Its case is constructed from AISI 304 stainless steel (SST) for superior corrosion resistance. Moreover, this model includes armor for cable protection, as indicated by the "with armor" designation. The connector type is the miniature coaxial ClickLoc with standard cable, providing a secure and dependable connection.

This model has a 0.1-inch unthreaded length and a 2.0-inch overall case length. It does not require agency approvals, shown by the "00" option. The 330702-01-20-10-02-00 is proudly manufactured in the U.S.A. and adheres to Bently Nevada's rigorous quality standards.

Mechanical and Environmental Parameters

Understanding the mechanical specifications is key to proper installation. The probe case thread is 1/2-20 UNF, with a maximum thread engagement of 0.750 inches. The recommended installation torque for the case is 15.2 N•m (133 in•lb), while the maximum rated torque is 45.2 N•m (400 in•lb). Staying within these limits prevents thread damage.

For the connector, finger-tight torque is recommended, with a maximum of 0.565 N•m (5 in•lb). The minimum bend radius for the cable is 25.4 mm (1.0 inch). This applies whether the cable includes stainless steel armor or not, facilitating flexible routing in crowded machinery spaces.

The operating and storage temperature range spans from -52°C to +177°C (-62°F to +351°F). However, exposing the Bently Nevada 330702 probe to temperatures below -34°C (30°F) may cause premature failure of the pressure seal. Therefore, it is wise to avoid low-temperature exposure whenever possible.

The probe uses a Viton O-ring to seal differential pressure between the tip and case. Nevertheless, it is not pressure tested prior to shipment. For applications needing a certified pressure seal verification, please contact the custom design department for assistance.

Installation Guidelines

Correct installation of the 3300 XL 11 mm probe ensures accurate measurements and long operational life. First, inspect the mounting hole threads and clean them thoroughly. Then, apply a light coating of anti-seize compound to the probe threads to prevent galling.

Next, thread the probe into the mounting hole by hand until it is finger-tight. After that, use a calibrated torque wrench to tighten it to the recommended torque of 15.2 N•m (133 in•lb). Be careful not to exceed the maximum torque of 45.2 N•m (400 in•lb).

Meanwhile, route the armored cable with care, maintaining a bend radius greater than 25.4 mm. This protects the internal conductors from stress and signal degradation. Finally, attach the ClickLoc connector to the extension cable by hand. Tighten it to a maximum of 0.565 N•m. Always leave a small service loop near the probe head for future adjustment or removal.

Packaging List

The package for the Bently Nevada 330702-01-20-10-02-00 includes the following items:

• 1 x 3300 XL 11 mm Proximity Probe (armored, with 1.0m cable and ClickLoc connector)

• 1 x Installation and Operation Manual (digital copy available upon request)

• 1 x Certificate of Origin (printed on request)

Frequently Asked Questions (FAQ)

Q1: What does the armor on the Bently Nevada 330702-01-20-10-02-00 protect against?
A1: The stainless steel armor protects the probe cable from abrasion, impact, and mechanical wear in harsh industrial environments.

Q2: What is the total length of this 3300 XL probe?
A2: The total length is 1.0 metre (approximately 3.3 feet), as indicated by the "10" option in the model number.

Q3: What connector type does the Bently Nevada 330702 use?
A3: It uses a miniature coaxial ClickLoc connector with standard cable, ensuring a reliable, vibration-resistant connection.

Q4: What is the recommended torque for the probe case?
A4: The recommended installation torque is 15.2 N•m (133 in•lb). The maximum rated torque is 45.2 N•m (400 in•lb).

Q5: Is this probe compatible with all Proximitor Sensors?
A5: Yes, this 1.0-meter probe works with standard Proximitor Sensors. However, always verify compatibility with your specific sensor model before installation.