Bently Nevada 330709-000-230-50-12-05 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-230-50-12-05 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 features an M16 x 1.5 thread, a 230 mm overall case length, and a 5.0-meter total length. It is equipped with a miniature coaxial ClickLoc connector and FluidLoc cable, and carries multiple agency approvals, ensuring compliance with international standards. This probe is specifically designed for use with the five-meter Proximitor Sensor, providing accurate and reliable data for condition monitoring systems.

Technical Parameters

• Model: 330709-000-230-50-12-05
• Product Type: 3300 XL 11 mm Proximity Probe
• Thread: M16 x 1.5 (without armor)
• Unthreaded Length: 0 mm
• Overall Case Length: 230 mm
• Total Length: 5.0 meters (16.4 feet)
• Connector: Miniature coaxial ClickLoc connector, FluidLoc cable
• Agency Approval: Multiple Approvals
• Probe DC Resistance (RPROBE): 7.2 ± 0.8 ohms
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Probe Case Material: AISI 304 stainless steel (SST)
• Probe Cable: 75 Ω triaxial, fluoroethylene propylene (FEP) insulated
• Probe Case Torque (M16x1.5): Recommended 21.1 N•m (187 in•lb), Maximum 63.3 N•m (560 in•lb)
• Connector-to-connector torque: Finger tight (recommended), Maximum 0.565 N•m (5 in•lb)
• Minimum Bend Radius: 25.4 mm (1.0 in)
• Maximum Thread Engagement: 24 mm
• Operating and Storage Temperature: -52°C to +177°C (-62°F to +351°F)

Parameter Analysis

The 330709-000-230-50-12-05 probe is engineered for high accuracy and stability. The 5.0-meter total length is matched with a five-meter Proximitor Sensor, ensuring optimal impedance matching and signal integrity. The probe’s DC resistance of 7.2 ± 0.8 ohms provides a known baseline for calibration. The PPS tip offers excellent dielectric properties and wear resistance, while the stainless steel case ensures durability in harsh environments. The temperature range of -52°C to +177°C allows operation in extreme conditions, though exposure below -34°C may affect the pressure seal. The recommended target size for flat surfaces is a minimum diameter of 30.5 mm, and for shaft measurement, a minimum diameter of 152 mm is recommended to avoid cross-talk limitations.

Application Scenarios

This proximity probe is ideal for monitoring vibration and axial position in a wide range of rotating machinery, including:

• Turbines (steam, gas, hydro)
• Compressors
• Pumps
• Electric motors
• Generators
• Other critical rotating equipment

It is commonly used in industries such as power generation, oil and gas, petrochemical, and manufacturing, where reliable condition monitoring is essential for predictive maintenance and machinery protection.

Installation Guide

1. Ensure the machine is safely shut down and isolated before installation.
2. Select an appropriate mounting location that meets the recommended target size and shaft diameter requirements.
3. Thread the probe into the mounting hole (M16 x 1.5) using the recommended torque of 21.1 N•m (187 in•lb). Do not exceed the maximum rated torque of 63.3 N•m (560 in•lb).
4. Route the probe cable with a minimum bend radius of 25.4 mm (1.0 in) to avoid damage.
5. Connect the ClickLoc connector to the extension cable or Proximitor, tightening finger tight, with a maximum torque of 0.565 N•m (5 in•lb).
6. Verify the gap (target clearance) as per the system calibration procedure.

Compatibility

The 330709-000-230-50-12-05 is part of the 3300 XL series and is compatible with Bently Nevada 3300 and 3500 monitoring systems. It is designed to work with the five-meter Proximitor Sensor (e.g., 3300 XL 5 mm Proximitor). The miniature coaxial ClickLoc connector is compatible with standard Bently Nevada extension cables and Proximitors.

Maintenance Advice

• Periodically inspect the probe tip and cable for physical damage or contamination.
• Check the connector tightness to ensure a secure connection.
• Verify the probe resistance (RPROBE) during system calibration; it should be within 7.2 ± 0.8 ohms.
• Avoid exposing the probe to temperatures below -34°C (30°F) to prevent premature failure of the pressure seal.
• Clean the probe tip with a soft cloth and approved solvent if necessary.

Procurement Advice

When ordering the Bently Nevada 330709-000-230-50-12-05, verify the model number to ensure it matches your system requirements. Confirm the total length (5.0 meters) and connector type (ClickLoc) are suitable for your installation. It is recommended to purchase from an authorized channel like TenBN to guarantee genuine parts and technical support. Consider stocking spare probes for critical machinery to minimize downtime.

FAQ

Q: What is the recommended target size for this probe?

A: For a flat surface, the recommended minimum target diameter is 30.5 mm (1.2 in). For shaft measurement, the recommended minimum shaft diameter is 152 mm (6.0 in).

Q: Can this probe be used with a 1-meter or 9-meter Proximitor?

A: No. This probe is designed specifically for use with the five-meter Proximitor Sensor. Using it with other lengths may cause measurement errors.

Q: What is the maximum torque for the probe case?

A: The recommended torque is 21.1 N•m (187 in•lb), and the maximum rated torque is 63.3 N•m (560 in•lb).

Q: What is the operating temperature range?

A: The operating and storage temperature range is -52°C to +177°C (-62°F to +351°F). However, exposing the probe to temperatures below -34°C (30°F) may cause premature failure of the pressure seal.

Q: What certifications does this probe have?

A: The model 330709-000-230-50-12-05 carries multiple approvals, including hazardous area certifications (EPL Ga, Gc, Dc) with specific temperature classifications.