Bently Nevada 330709-000-230-50-01-00 3300 XL 11 mm Proximity Probe

Product Introduction

The Bently Nevada 330709-000-230-50-01-00 is a 3300 XL 11 mm Proximity Probe, designed for precise measurement of radial vibration and axial position in rotating machinery. This model features an M16 x 1.5 thread, a 230 mm overall case length, and a 5.0-meter total length, making it suitable for installations requiring a longer probe. Manufactured in the USA, it is part of the 3300 XL series known for accuracy and durability.

Technical Parameters

• Probe Type: 3300 XL 11 mm, M16 x 1.5 thread, without armor
• Unthreaded Length: 0 mm
• Overall Case Length: 230 mm
• Total Length: 5.0 meters (16.4 feet) – designed for use with 5-meter Proximitor Sensor only
• Connector: Miniature coaxial ClickLoc with connector protector, standard 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
• Probe Case Torque (Recommended): 21.1 N•m (187 in•lb)
• Connector-to-Connector Torque: Finger tight (max 0.565 N•m)
• Minimum Bend Radius: 25.4 mm (1.0 in)
• Probe Case Thread: M16x1.5, max engagement 24 mm
• Temperature Range: -52°C to +177°C (operating and storage)

Parameter Analysis

The 330709-000-230-50-01-00 is configured with a 5.0-meter cable, which must be paired with a 5-meter Proximitor sensor for proper impedance matching. The probe’s DC resistance of 7.2 ± 0.8 ohms ensures consistent signal transmission. The M16x1.5 thread provides robust mounting, and the PPS tip offers excellent dielectric properties. The probe is designed for use with target diameters of at least 30.5 mm (flat surface) and shaft diameters of at least 152 mm to avoid cross-talk limitations.

Application Scenarios

This proximity probe is ideal for monitoring vibration and position in critical rotating machinery such as turbines, compressors, pumps, and other industrial equipment. It is commonly used in oil & gas, power generation, and manufacturing plants where reliable condition monitoring is essential to prevent downtime and ensure safety.

Installation Guide

• Ensure the probe is installed with the recommended torque of 21.1 N•m (187 in•lb) for the M16x1.5 case.
• Maintain a minimum bend radius of 25.4 mm for the cable to avoid damage.
• Connect the ClickLoc connector finger tight, then tighten to a maximum of 0.565 N•m (5 in•lb).
• Verify the target surface meets the minimum diameter requirements (30.5 mm flat, 152 mm shaft).
• Route the cable away from high-temperature sources to avoid premature seal failure.

Compatibility

This probe is designed for use with Bently Nevada 3300 XL series Proximitor sensors, specifically the 5-meter version. It is compatible with 3300 and 3500 monitoring systems when used with the appropriate Proximitor. The probe is not compatible with other cable lengths unless matched with the correct Proximitor.

Maintenance Advice

• Periodically inspect the probe tip and cable for wear or damage.
• Keep the connector clean and dry; do not over-torque.
• Check the probe resistance periodically to ensure it remains within specification (7.2 ± 0.8 ohms).
• If the probe is exposed to temperatures below -34°C, be aware that premature failure of the pressure seal may occur.

Procurement Advice

When ordering the Bently Nevada 330709-000-230-50-01-00, verify that your system uses a 5-meter Proximitor. Ensure the probe length and thread type match your installation requirements. Consider purchasing from an authorized channel like TenBN to guarantee genuine parts and technical support.

FAQ

Q1: Can this probe be used with a 1-meter or 9-meter Proximitor?

No, this probe has a 5.0-meter total length and is designed for use with the 5-meter Proximitor Sensor only. Using it with other lengths will cause measurement errors.

Q2: What is the maximum operating temperature?

The probe can operate and be stored in temperatures from -52°C to +177°C. However, exposing the probe to temperatures below -34°C may cause premature failure of the pressure seal.

Q3: What is the recommended mounting torque?

For the M16x1.5 probe case, the recommended torque is 21.1 N•m (187 in•lb). Do not exceed the maximum rated torque of 63.3 N•m (560 in•lb).

Q4: What is the minimum target size?

For a flat surface, the recommended minimum target diameter is 30.5 mm (1.2 in). For shaft diameter, the recommended minimum is 152 mm (6.0 in) to avoid cross-talk limitations.

Q5: Does this probe come with an agency approval?

No, the agency approval option for this model is ’00’, meaning not required. If you need hazardous area approvals, please contact TenBN for alternatives.