Bently Nevada 330709-000-070-50-12-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-070-50-12-00 is a 3300 XL 11 mm Proximity Probe, designed for precise measurement of shaft vibration and position in critical rotating machinery. Manufactured in the U.S.A., this probe is part of the 3300 XL series, known for its accuracy and durability. The model number 330709-000-070-50-12-00 indicates a probe with M16 x 1.5 thread, no armor, 0 mm unthreaded length, 70 mm overall case length, 5.0 meter total length, miniature coaxial ClickLoc connector with FluidLoc cable, and no agency approval. This probe is intended for use with the five meter Proximitor Sensor.

Technical Parameters

• Probe Length: 5.0 meters (16.4 feet)
• 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
• Connector: Miniature coaxial ClickLoc, FluidLoc cable
• Thread Size: M16 x 1.5
• Maximum Thread Engagement: 24 mm
• Operating Temperature: -52°C to +177°C (-62°F to +351°F)
• Recommended Torque: Finger tight (connector), 21.1 N•m (probe case)
• Minimum Bend Radius: 25.4 mm (1.0 in)

Parameter Analysis

The 330709-000-070-50-12-00 is a 5-meter probe, designed to match the 5-meter Proximitor for optimal performance. The probe’s DC resistance of 7.2 ± 0.8 ohms ensures proper signal transmission. The PPS tip and stainless steel case provide robustness in harsh environments. The M16 x 1.5 thread allows secure mounting, with a maximum torque rating of 63.3 N•m. The operating temperature range of -52°C to +177°C covers most industrial applications, though exposure below -34°C may affect the pressure seal.

Application Scenarios

This proximity probe is widely used for vibration and position monitoring in turbines, compressors, pumps, and other rotating machinery. It is suitable for applications requiring precise shaft radial vibration measurement, axial position monitoring, and speed/phase reference. The 3300 XL series is compatible with Bently Nevada 3300 and 3500 monitoring systems, making it ideal for predictive maintenance and protection in power generation, oil & gas, petrochemical, and other process industries.

Installation Guide

Install the probe with the recommended torque of 21.1 N•m for the probe case (maximum 63.3 N•m). Ensure the thread engagement does not exceed 24 mm. The connector-to-connector torque should be finger tight, with a maximum of 0.565 N•m. Maintain a minimum bend radius of 25.4 mm for the cable. For optimal performance, observe the recommended minimum target size: 30.5 mm flat surface diameter or 152 mm shaft diameter. Refer to the service manual for detailed installation procedures.

Compatibility

The 330709-000-070-50-12-00 is designed for use with the five meter Proximitor Sensor. It is compatible with Bently Nevada 3300 XL and 3500 monitoring systems. The miniature coaxial ClickLoc connector ensures secure connection with compatible extension cables and proximity sensors.

Maintenance Advice

Regularly inspect the probe cable and connector for damage. Keep the probe tip clean and free from contaminants. Avoid exposing the probe to temperatures below -34°C to prevent premature failure of the pressure seal. Periodically verify probe resistance and calibration as per manufacturer recommendations.

Procurement Advice

When ordering, verify the model number 330709-000-070-50-12-00 to ensure it matches your requirements. Confirm the total length (5.0 meters) and connector type (ClickLoc) are suitable for your system. As an authorized channel, TenBN ensures genuine Bently Nevada products and reliable supply. Contact our sales team for availability and pricing.

FAQ

1. What is the total length of the probe?

The total length is 5.0 meters (16.4 feet).

2. What is the probe’s DC resistance?

The resistance from center conductor to outer conductor is 7.2 ± 0.8 ohms.

3. What is the operating temperature range?

The operating and storage temperature range is -52°C to +177°C (-62°F to +351°F).

4. Is the probe compatible with 3500 monitoring systems?

Yes, the 3300 XL probe is compatible with Bently Nevada 3500 systems when used with the appropriate Proximitor.

5. What is the recommended mounting torque?

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