Bently Nevada 330709-000-070-50-11-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-070-50-11-00 is a 3300 XL 11 mm Proximity Probe, designed for precise measurement of radial vibration and axial position in rotating machinery. This model features a 5.0-meter total length, M16 x 1.5 thread, and a miniature coaxial ClickLoc connector with connector protector and FluidLoc cable. Manufactured in the U.S.A., this probe is part of the 3300 XL series, known for enhanced linear range and improved accuracy.

Technical Parameters

• Probe Type: 3300 XL 11 mm, M16 x 1.5 thread, without armor
• Unthreaded Length: 0 mm
• Overall Case Length: 70 mm
• Total Length: 5.0 meters (16.4 feet)
• Connector: Miniature coaxial ClickLoc with connector protector, FluidLoc cable
• Agency Approval: Not required
• Probe DC Resistance (RPROBE): 7.2 ± 0.8 ohms
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel
• Probe Cable: 75 Ω triaxial, FEP insulated
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Probe Case Thread: M16 x 1.5, max engagement 24 mm
• Recommended Torque: 21.1 N•m (187 in•lb), max 63.3 N•m (560 in•lb)
• Minimum Bend Radius: 25.4 mm (1.0 in)

Parameter Analysis

The 5.0-meter total length is specifically designed for use with the 5-meter Proximitor Sensor, ensuring matched system performance. The probe’s DC resistance of 7.2 ± 0.8 ohms is critical for accurate signal transmission. The PPS tip and stainless steel case provide durability in harsh environments. The operating temperature range of -52°C to +177°C allows use in extreme conditions, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is ideal for monitoring vibration and position in turbines, compressors, pumps, and other rotating machinery. It is commonly used in power generation, oil & gas, petrochemical, and manufacturing industries where reliable condition monitoring is essential to prevent downtime and equipment failure.

Installation Guide

Install the probe with recommended torque of 21.1 N•m (187 in•lb), not exceeding 63.3 N•m (560 in•lb). Ensure the target surface is flat and has a minimum diameter of 30.5 mm (1.2 in) for flat surfaces, or a shaft diameter of at least 152 mm (6.0 in). Maintain a minimum bend radius of 25.4 mm (1.0 in) for the cable. Use finger-tight for connector-to-connector torque, with a maximum of 0.565 N•m (5 in•lb).

Compatibility

The 330709-000-070-50-11-00 is compatible with Bently Nevada 3300 XL systems, specifically designed for use with 5-meter Proximitor sensors. It is part of the 3300 series and can be used with compatible extension cables and monitors.

Maintenance Advice

Regularly inspect the probe cable and connector for damage. Keep the probe tip clean and free from debris. Avoid exposing the probe to temperatures below -34°C to prevent premature failure of the pressure seal. Periodically verify the probe’s DC resistance to ensure it remains within specification.

Procurement Advice

When ordering, confirm the exact model number 330709-000-070-50-11-00 to ensure correct configuration. Verify the total length and connector type match your system requirements. Consider purchasing spare probes to minimize downtime. Ensure you are sourcing from an authorized channel like TenBN to guarantee genuine Bently Nevada products.

FAQ

What is the total length of this probe?

The total length is 5.0 meters (16.4 feet), designed for use with 5-meter Proximitor sensors.

What is the operating temperature range?

The probe can operate and be stored in temperatures from -52°C to +177°C (-62°F to +351°F).

What is the recommended mounting torque?

The recommended torque for the probe case is 21.1 N•m (187 in•lb), with a maximum of 63.3 N•m (560 in•lb).

Is this probe suitable for use in hazardous areas?

The probe has temperature classifications for various ambient temperatures, but agency approval is not required for this model. Consult the manual for specific hazardous area ratings.

What is the minimum target size?

For flat surfaces, the recommended minimum diameter is 30.5 mm (1.2 in). For shaft measurement, the recommended minimum shaft diameter is 152 mm (6.0 in).