Bently Nevada 330708-00-10-50-11-00 11mm Proximity Probe

Bently Nevada 330708-00-10-50-11-00 Proximity Probe

Product Introduction

The 330708-00-10-50-11-00 is a high-performance 3300 XL 11 mm proximity probe from Bently Nevada, designed for non-contact vibration and position measurement of rotating machinery. This probe offers a 5.0-meter (16.4 feet) total length with FluidLoc cable technology, which prevents oil and other liquids from leaking through the cable interior. The miniature coaxial ClickLoc connector ensures a secure, corrosion-resistant connection, while the PPS probe tip and 304 stainless steel case provide excellent durability in harsh industrial environments.

Technical Specifications

Electrical Characteristics

The 330708-00-10-50-11-00 maintains precise electrical parameters for accurate measurement. The DC resistance from the center conductor to the outer conductor (RPROBE) measures 7.2 ± 0.8 Ω for the 5.0-meter length. This controlled impedance ensures consistent signal transmission from the probe tip to the Proximitor sensor. The probe cable uses 75 Ω triaxial construction with fluoroethylene propylene (FEP) insulation, providing excellent signal integrity and chemical resistance.

Mechanical Specifications

This probe features a 5/8-18 UNF thread with a maximum thread engagement of 0.938 inches. The unthreaded length option is 0 inches (Option 00), and the overall case length is 1.0 inch (Option 10). The probe case material is AISI 304 stainless steel (SST) , offering superior corrosion resistance. The probe tip uses Polyphenylene sulfide (PPS) , a high-performance thermoplastic that withstands demanding operating conditions.

Torque and Installation Requirements

Proper installation requires attention to torque specifications. The maximum rated torque for the probe case is 45.2 N•m (400 in•lb) , while we recommend applying 15.2 N•m (133 in•lb) for optimal performance. For the connector-to-connector connection, finger tight is the recommended torque, with a maximum of 0.565 N•m (5 in•lb) . Additionally, the minimum bend radius for the probe cable is 25.4 mm (1.0 inch) , with or without stainless steel armor.

Temperature and Pressure Ratings

The 330708-00-10-50-11-00 operates across a wide temperature range from -52°C to +177°C (-62°F to +351°F) for both operating and storage conditions. However, exposing the probe to temperatures below -34°C (-30°F) may cause premature failure of the pressure seal. The probe seals differential pressure between the probe tip and case using a Viton® O-ring , though Bently Nevada does not pressure test probes prior to shipment.

Installation and Configuration

Thread Compatibility

The 330708-00-10-50-11-00 uses a 5/8-18 UNF thread configuration. The probe case also accommodates M16x1.5 and M14x1.5 thread options, with maximum thread engagement lengths of 24 mm and 21 mm , respectively. Always verify your mounting bracket or housing thread compatibility before installation.

Cable and Connector Details

This probe includes a miniature coaxial ClickLoc connector with connector protector and FluidLoc cable. The FluidLoc feature prevents oil and other liquids from leaking out of the machine through the cable's interior, making it ideal for turbine and compressor applications. The ClickLoc connector provides corrosion-resistant, gold-plated contacts that ensure reliable signal transmission even in challenging environments.

System Integration

This proximity probe works with 3300 XL 11 mm Proximitor sensors and extension cables as part of a complete monitoring system. The 5.0-meter total length provides flexibility for various machine configurations. For field wiring between the Proximitor sensor and the monitor, use 0.2 to 1.5 mm² (16 to 24 AWG) conductors. We recommend using 3-conductor shielded triad cable with tinned wiring, with a maximum length of 305 meters (1,000 feet) .

Packaging List

Your purchase of the Bently Nevada 330708-00-10-50-11-00 includes the following items:

• 1x Bently Nevada 330708-00-10-50-11-00 Proximity Probe (5.0 meters)

• 1x Connector Protector (installed)

• Documentation and installation guide (as applicable)

Shipping: We ship all orders via Fedex, UPS, or DHL to ensure fast and reliable delivery.

Frequently Asked Questions (FAQ)

1. What is the total length of the Bently Nevada 330708-00-10-50-11-00?
The 330708-00-10-50-11-00 has a total length of exactly 5.0 meters (16.4 feet) , including the probe tip, case, and cable.

2. What materials does Bently Nevada use for the probe tip and case?
The probe tip uses Polyphenylene sulfide (PPS) , while the probe case uses AISI 304 stainless steel (SST) for excellent durability and corrosion resistance.

3. What is FluidLoc cable, and why does this probe include it?
FluidLoc is a Bently Nevada technology that prevents oil and other liquids from leaking out of the machine through the cable's interior. This feature protects both equipment and the environment in critical turbomachinery applications.

4. What is the operating temperature range for this probe?
The 330708-00-10-50-11-00 operates from -52°C to +177°C (-62°F to +351°F) . However, avoid exposing the probe to temperatures below -34°C (-30°F) to prevent premature pressure seal failure.

5. What torque should I apply when installing this probe?
Apply 15.2 N•m (133 in•lb) for the probe case installation, with a maximum of 45.2 N•m (400 in•lb) . For the connector, finger tight is recommended, with a maximum of 0.565 N•m (5 in•lb) .