Bently Nevada 330708-00-24-50-02-00 3300 XL 11 mm Probe

Bently Nevada 330708-00-24-50-02-00 3300 XL Proximity Probe

Product Introduction

The Bently Nevada 330708-00-24-50-02-00 belongs to the trusted 3300 XL platform, which is widely recognized for precision shaft vibration and thrust position measurements. This particular model offers an 11 mm probe tip without armor, and it incorporates a 5/8-18 UNF thread for straightforward mounting. Specifically, this five-meter probe version is intended for use exclusively with the five-meter Proximitor Sensor. Its construction uses high-grade materials such as polyphenylene sulfide (PPS) for the tip and AISI 304 stainless steel for the case, ensuring excellent durability. Consequently, this sensor delivers consistent, repeatable data that helps protect critical rotating machinery from unplanned downtime.

Technical Specifications

The Bently Nevada 330708-00-24-50-02-00 offers a total length of 5.0 meters (16.4 feet). Its unthreaded length option is set to 0 inches, while the overall case length measures 2.4 inches. Furthermore, the probe cable is a 75 Ω triaxial type with fluoroethylene propylene (FEP) insulation, which provides strong signal integrity. The connector is a miniature coaxial ClickLoc type with standard cable, ensuring a secure and reliable connection. In terms of electrical characteristics, the DC resistance from the center conductor to the outer conductor (RPROBE) is rated at 7.2 ± 0.8 ohms. Additionally, the probe is designed to seal differential pressure between the tip and the case using a Viton O-ring. Meanwhile, the agency approval option is noted as not required for this configuration.

Mechanical and Environmental Parameters

This 3300 XL 11 mm probe operates effectively across a wide temperature range from -52°C to +177°C (-62°F to +351°F) for both storage and operation. However, please note that exposing the probe to temperatures below -34°C (30°F) may cause premature failure of the pressure seal. The probe case thread is 5/8-18 UNF, with a maximum thread engagement length of 0.938 inches. Regarding torque specifications, the maximum rated torque for the probe case is 45.2 N•m (400 in•lb), while the recommended torque is 15.2 N•m (133 in•lb). For the connector-to-connector joint, finger-tight is recommended, and the maximum torque should not exceed 0.565 N•m (5 in•lb). Moreover, the minimum bend radius for the cable, whether with or without stainless steel armor, is 25.4 mm (1.0 inch). This flexibility allows for easier routing in tight machine compartments.

Installation Guidance

Proper installation of the Bently Nevada 330708-00-24-50-02-00 is essential for accurate measurements. First, ensure the mounting hole is prepared with the correct 5/8-18 UNF thread. Next, thread the probe into the housing by hand until it contacts the target surface, then back it out according to the recommended gap settings provided by your Proximitor Sensor calibration curve. For optimal performance, always use the recommended torque of 15.2 N•m when tightening the probe case. Additionally, avoid bending the cable beyond its minimum bend radius to prevent internal damage. Since this probe is not pressure tested before shipment, we strongly advise conducting a pressure seal test onsite if your application involves significant differential pressure. Finally, remember that this five-meter probe must be paired exclusively with a five-meter Proximitor Sensor to ensure correct system operation.

Packaging List

• 1 x Bently Nevada 330708-00-24-50-02-00 3300 XL 11 mm Proximity Probe (with 5.0m integral cable)

• 1 x Miniature coaxial ClickLoc connector (pre-attached to cable)

Shipping Method – FedEx, UPS, DHL

Frequently Asked Questions

1. Is the Bently Nevada 330708-00-24-50-02-00 compatible with extension cables?
No. This five-meter probe is designed for direct connection to a five-meter Proximitor Sensor only. Using extension cables with this model may alter the system calibration and lead to inaccurate readings.

2. What is the difference between the 330708-00-24-50-02-00 and other 3300 XL probes?
The primary differences lie in the total length (5.0 meters), the unthreaded length (0 inches), the overall case length (2.4 inches), and the connector type (ClickLoc). Additionally, this version does not include armor and has no agency approval requirement.

3. Can this probe withstand high-pressure environments?
While the probe features a Viton O-ring to seal differential pressure, it is not pressure tested prior to shipment. Therefore, we recommend that you perform your own pressure seal validation if your application involves high-pressure conditions.

4. What is the recommended torque for installing the probe case?
The recommended torque is 15.2 N•m (133 in•lb). Exceeding the maximum rated torque of 45.2 N•m (400 in•lb) may cause permanent damage to the probe case or mounting threads.

5. What should I do if the cable needs to be routed through a tight space?
The cable has a minimum bend radius of 25.4 mm (1.0 inch), so you can safely route it through most machine compartments. However, always avoid sharp bends or kinks, as these may degrade signal quality over time.