Bently Nevada 330707-00-62-10-01-00 | 3300 XL 11 mm Probe

330707-00-62-10-01-00 Bently Nevada 3300 XL 11 mm Probe

Product Introduction

The Bently Nevada 330707-00-62-10-01-00 belongs to the industry-leading 3300 XL series and features a 5/8-18 UNF thread with an extended 6.2-inch case length. This 3300 XL 11 mm probe provides non-contact vibration and displacement measurement on fluid film bearing machines, including steam turbines, compressors, and large pumps. The longer case design offers deeper reach into machine casings, which makes it particularly suitable for applications with thicker housing walls or recessed mounting positions. The 11 mm tip delivers a broader linear range than standard 8 mm systems, enabling accurate axial position monitoring and eccentricity detection. This model also includes a ClickLoc connector with a connector protector, which shields the connection point from contamination and mechanical damage. The probe outputs a voltage signal that varies proportionally with the gap between the tip and the conductive target, enabling precise machine condition assessment. Because of its extended case and robust design, the 330707-00-62-10-01-00 serves as an excellent choice for deep-well mounting configurations in power generation and oil and gas facilities. This non-armored version offers flexibility in applications where cable protection is not a primary concern.

Technical Specifications

Probe Configuration and Ordering Code

The part number 330707-00-62-10-01-00 defines each configuration option with precision. The unthreaded length option "00" indicates a standard configuration with no additional unthreaded segment between the probe tip and the threaded section, which maintains consistent sensing characteristics. The overall case length option "62" specifies a 6.2-inch case, which provides extended reach for deep mounting applications while maintaining structural integrity. Meanwhile, the total length option "10" denotes a 1.0-metre (3.3 feet) cable, offering adequate reach for most machine installations without excess cable management. For the connector and cable type, option "01" provides a miniature coaxial ClickLoc connector with a connector protector, which adds an extra layer of protection against contamination and accidental disconnection. Finally, the agency approval option "00" means this probe carries no specific third-party certifications, which remains standard for this product line.

Connector Protector Feature

The 330707-00-62-10-01-00 includes a connector protector as part of its standard configuration. This protector shields the ClickLoc connector from dust, moisture, and physical impact, which significantly enhances connection reliability in industrial environments. The protector also prevents accidental disconnection due to vibration or cable movement, ensuring uninterrupted signal transmission. This feature proves particularly valuable in applications where connectors are exposed to harsh conditions or where maintenance access is difficult. The connector protector adds minimal weight and bulk while delivering substantial protection benefits.

Electrical and Material Properties

The probe exhibits a dc resistance of 5.9 ± 0.5 ohms from the center conductor to the outer conductor, which ensures consistent electrical behaviour across the 1.0-metre cable length. Furthermore, the probe cable features a 75 Ω triaxial design with fluoroethylene propylene (FEP) insulation, which offers outstanding dielectric properties and resistance to chemicals, oils, and solvents. The probe tip uses polyphenylene sulfide (PPS), a high-performance thermoplastic that withstands wear and maintains dimensional stability under varying temperatures. In addition, the probe case utilizes AISI 304 stainless steel (SST), which provides excellent corrosion resistance and structural integrity in industrial atmospheres. These carefully selected materials contribute to the probe's long service life and measurement accuracy.

Environmental and Operating Conditions

The 330707-00-62-10-01-00 operates reliably across a wide temperature range from -51°C to +177°C (-60°F to +351°F). However, exposing the probe to temperatures below -34°C (30°F) may cause premature failure of the pressure seal, so operators should consider this limitation during cold startup conditions. For storage, the same temperature limits apply, allowing flexibility in warehouse environments. Additionally, the probe incorporates a Viton O-ring to seal differential pressure between the tip and case, which provides excellent resistance to high-temperature oil and process fluids. While the probe does not undergo pressure testing before shipment, the sealing design meets standard industrial requirements for most turbine and compressor applications.

Thread and Torque Specifications

The probe case features a 5/8-18 UNF thread with a maximum thread engagement length of 0.938 inches. This larger thread size provides increased mechanical strength and stability, which proves advantageous in heavy machinery applications where vibration levels are significant. For installation, the maximum recommended tightening torque is 15.2 N•m (133 in•lb), while the rated maximum reaches 45.2 N•m (400 in•lb). Importantly, operators should stay below the recommended torque to prevent damage to the probe case or internal components. For the ClickLoc connector, the recommended torque is finger tight, with a maximum of 0.565 N•m (5 in•lb) to avoid over-tightening and potential connector damage. The cable maintains a minimum bend radius of 25.4 mm (1.0 inch), which provides adequate routing flexibility.

Mechanical and Environmental Data

Extended Case Design

The 6.2-inch case length of the 330707-00-62-10-01-00 distinguishes it from standard probes with shorter cases. This extended design allows the probe to reach deeper into machine casings, which is essential when mounting bosses or adapter fittings place the sensing tip further from the external mounting surface. The longer case also provides additional support for the internal coil assembly, which enhances mechanical stability and measurement consistency. Despite the extended length, the probe maintains a compact overall profile that fits within most standard installation envelopes.

Physical Dimensions and Weight

The probe's overall length, including the cable, is 1.0 metre, with a case length of 6.2 inches. The extended case adds slightly to the weight, resulting in a shipping weight of 0.18 kg. The probe originates from U.S.A. manufacturing, reflecting rigorous production standards and quality control practices.

Pressure Sealing and Application Notes

The 3300 XL 11 mm probe effectively seals differential pressure between the probe tip and case, which is particularly critical in pressurized bearing housings found in turbines and compressors. The Viton O-ring provides a reliable seal against oil and process fluids across the full temperature range. However, note that the probe does not undergo pressure testing prior to shipment. For applications with specific pressure certification requirements, contact the custom design department to arrange a pressure seal test. Nevertheless, the standard design suits the vast majority of industrial rotating machinery applications without modification.

Installation Guide

Mounting Preparation

Before installing the 330707-00-62-10-01-00, inspect the mounting hole and clean it thoroughly to remove any debris or contaminants. The 5/8-18 UNF thread requires a mating hole with a minimum thread engagement of 0.938 inches for secure mechanical mounting. This larger thread size provides enhanced holding power in high-vibration environments. Meanwhile, ensure the target surface has a proper ground connection to maintain accurate eddy-current measurements. We recommend applying a thread-locking compound in severe vibration applications, although this is not mandatory for standard installations.

Extended Case Installation Considerations

The extended 6.2-inch case requires careful measurement during installation to ensure the probe tip sits at the correct gap from the target surface. Use the case length and thread engagement calculations to determine the proper insertion depth. The additional case length provides flexibility in positioning but also requires adequate clearance within the machine casing. Verify that the probe does not contact any internal components during installation or operation.

Cable Routing and Connector Protection

When routing the triaxial FEP cable, avoid sharp bends and maintain a bend radius above 25.4 mm to prevent damage to the internal conductors. For the ClickLoc connector, simply push and twist to lock, which ensures a secure and vibration-resistant connection. The connector protector provides an additional layer of defense against contamination, but you should still keep the connector area clean and dry during installation. The connector requires only finger-tight torque, so no tools are necessary.

Initial Setup and Calibration

After installation, perform a calibration using a target material that matches the machine's shaft material composition. Typically, the probe requires a 1.5 mm gap for optimal linear range performance. Use a voltage divider or signal conditioner to convert the probe's output to a usable range for your monitoring system. For precise measurements, follow the manufacturer's gap-voltage curve specific to the 3300 XL series. Finally, verify the output signal at multiple gap positions to confirm linearity across the intended measurement range.

Packaging List

The package includes the following items:

• Bently Nevada 330707-00-62-10-01-00 3300 XL 11 mm Proximity Probe (1 unit)

• Quick start installation guide

• Anti-static protective packaging bag

Note: This package does not include calibration certificates or warranty documents. The probe ships as a standalone sensor assembly.

Shipping Information

We dispatch all orders via FedEx, UPS, or DHL, depending on your location and selected shipping method. We provide tracking numbers upon shipment confirmation. The gross weight of 0.18 kg ensures economical shipping, even for express international services. For customs clearance, please ensure your documentation accurately reflects the product description and value.

Frequently Asked Questions (FAQ)

1. What is the advantage of the 6.2-inch extended case on the 330707-00-62-10-01-00?
The extended case allows the probe to reach deeper into machine casings with thicker walls or recessed mounting positions. This design ensures the sensing tip positions correctly relative to the target surface without requiring additional adapters.

2. How does the connector protector benefit my installation?
The connector protector shields the ClickLoc connector from dust, moisture, and physical impact. It also prevents accidental disconnection due to vibration, which ensures uninterrupted signal transmission in harsh industrial environments.

3. Can I use this probe with a 1/2-20 UNF mounting hole?
No, this probe features a 5/8-18 UNF thread, which is larger than 1/2-20. You must use a mounting hole or adapter with matching 5/8-18 threads. The larger thread provides increased mechanical strength for heavy-duty applications.

4. What is the maximum thread engagement for the 5/8-18 thread?
The maximum thread engagement is 0.938 inches. Ensure your mounting hole does not exceed this depth to prevent interference with the probe's internal coil assembly and maintain proper mechanical support.

5. Is the connector protector removable for cleaning or maintenance?
Yes, the connector protector is designed to be removable for inspection and cleaning. However, we recommend reinstalling it after maintenance to maintain connection protection and reliability.