Bently Nevada 330707-00-30-10-02-00 3300 XL Probe

3300 XL 11 mm Proximity Probe – Bently Nevada 330707

Product Introduction

The Bently Nevada 330707-00-30-10-02-00 belongs to the renowned 3300 XL series of eddy-current proximity probes. This model delivers precise non-contact displacement and vibration measurements for critical turbomachinery. It features a 5/8-18 UNF thread without armor, paired with a 2.5-inch overall case length and a short 1.0-meter FEP-insulated triaxial cable. Furthermore, the miniature coaxial ClickLoc connector ensures a secure, tool-free connection. Its PPS tip and 304 SST housing provide excellent durability in demanding industrial environments. Consequently, this probe is well-suited for steam turbines, gas turbines, and large compressors.

Technical Specifications

Electrical Characteristics
The probe's DC resistance from the center conductor to the outer conductor measures 5.9 ± 0.5 ohms. Meanwhile, the cable maintains a 75 Ω triaxial impedance to preserve signal quality over its 1.0-meter length. For full operation, pair this probe with a compatible 3300 XL proximity driver system.

Mechanical Dimensions

• Unthreaded Length Option: 00 = 0 inches

• Overall Case Length Option: 25 = 2.5 inches

• Total Length Option: 10 = 1.0 meter (3.3 feet)

• Connector Option: 02 = Miniature coaxial ClickLoc connector, standard cable

• Agency Approval Option: 00 = Not required

Materials and Construction

• Probe Tip: Polyphenylene sulfide (PPS) – offers excellent chemical resistance.

• Probe Case: AISI 304 stainless steel (SST) – ensures long-term corrosion protection.

• Cable Insulation: Fluoroethylene propylene (FEP) – withstands high temperatures and harsh conditions.

Environmental and Mechanical Ratings

Temperature Range

• Operating and Storage: -51°C to +177°C (-60°F to +351°F)

• Nevertheless, prolonged exposure below -34°C (30°F) may reduce the pressure seal's service life.

Pressure Sealing
This probe is engineered to seal differential pressure between its tip and case. A Viton® O-ring serves as the primary sealing element. However, Bently Nevada does not perform pressure testing prior to shipment. For applications requiring certified pressure seals, please consult the custom design department for testing options.

Thread and Torque Specifications

• Case Thread: 5/8-18 UNF

• Maximum Thread Engagement: 0.938 inches

• Maximum Rated Torque: 45.2 N•m (400 in•lb)

• Recommended Installation Torque: 15.2 N•m (133 in•lb)

• Connector-to-Connector Torque: Finger tight (maximum 0.565 N•m / 5 in•lb)

• Minimum Bend Radius: 25.4 mm (1.0 inch) – applicable with or without stainless steel armor.

Installation Guidelines

First, verify that the target shaft surface is clean and free of any debris or scratches. Next, thread the Bently Nevada 330707 probe carefully into the mounting hole, applying the recommended torque of 15.2 N•m to achieve proper seating. Avoid exceeding the maximum rated torque to prevent thread damage or internal strain. Then, mate the ClickLoc connector by pushing gently until an audible click confirms full engagement. Use only finger pressure for the connector – tools are not required and may cause over-tightening. Finally, route the cable with a bend radius no smaller than 25.4 mm to maintain signal integrity. For best results, always use genuine Bently Nevada extension cables and drivers with this proximity probe.

Packaging List

• 1 x Bently Nevada 330707-00-30-10-02-00 Proximity Probe (with 1.0 m cable and ClickLoc connector pre-attached)

• 1 x Quick-start installation reference card

• 1 x Protective tip cover for storage and handling

Shipping Information

All shipments are handled through FedEx, UPS, or DHL with full tracking capabilities. Standard delivery typically takes 3 to 5 business days for domestic addresses. Expedited shipping options are available upon request – please contact our support team for time-sensitive orders.

Frequently Asked Questions (FAQ)

1. What is the overall case length of this specific model?
The 330707-00-30-10-02-00 has an overall case length of 2.5 inches, which provides a longer sensing range compared to the 1.0-inch case option.

2. What is the total cable length supplied with this probe?
This model comes with a 1.0-meter (3.3 feet) triaxial cable. For installations requiring longer distances, consider using extension cables or selecting a 5.0 or 9.0 meter total length variant.

3. Can I use this probe in a vertical mounting position?
Yes, the 3300 XL series probes work reliably in any orientation. However, ensure the mounting threads are clean and properly torqued to prevent loosening from vibration over time.

4. Is the ClickLoc connector compatible with standard BNC interfaces?
No, the ClickLoc connector is a proprietary miniature coaxial design. It requires a matching connector on the extension cable or driver. Adapters are not recommended as they may degrade signal quality.

5. What should I do if the probe tip becomes contaminated?
Gently clean the PPS tip using isopropyl alcohol and a soft, lint-free cloth. Allow it to dry completely before reinstallation. Never use abrasive pads or harsh solvents that could scratch or degrade the tip material.