330191-00-16-90-CN | Bently Nevada 9m 3300 XL 8mm Proximity Probe

Product Overview

The Bently Nevada 330191-00-16-90-CN is a 3300 XL 8 mm ETR proximity probe designed for reliable vibration and position measurement in critical rotating machinery. This model features a 3/8-24 UNF thread, a 9.0-meter (29.5 feet) total length, and a minimum unthreaded length of 0.0 inches. As part of the 3300 XL series, it delivers enhanced durability and measurement accuracy, helping you reduce unplanned downtime and maintenance costs.

This probe is built with a patented TipLoc molding method that creates a robust bond between the probe tip and body, and a patented CableLoc design providing 330 N (75 lbf) pull strength. These features directly reduce the risk of probe failure, which translates to lower replacement costs and fewer production interruptions.

Key Technical Specifications

Part Number: 330191-00-16-90-CN

Model: 3300 XL 8 mm ETR Probe, 3/8-24 UNF thread, without armor

Total Length: 9.0 meters (29.5 feet)

Overall Case Length Option: 16 = 1.6 inches

Minimum Unthreaded Length: 0.0 inches

Agency Approval: CN (Country Specific Approval)

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 303 or 304 stainless steel

Cable Type: 75Ω triaxial, FEP insulated (standard) or PFA (extended temperature range)

Available Total Probe Lengths: 0.5, 1, 1.5, 2, 3, 5, or 9 meters (standard); 0.5, 1, 1.5, 2, 5, or 9 meters (extended temperature)

Connector Material: Gold-plated brass or gold-plated beryllium copper

Maximum Connector Torque: 0.565 N•m (5 in•lbf)

Probe Case Thread: 3/8-24, maximum thread engagement 0.563 inches

Probe Weight: 323 g/m (11.4 oz)

These specifications directly influence your total cost of ownership. For example, the 9.0-meter cable length eliminates the need for extension cables in many installations, reducing component costs and potential failure points. The stainless steel case and PPS tip resist physical abuse, extending service life and lowering replacement frequency.

Industry Applications

The 330191-00-16-90-CN is ideal for vibration monitoring on turbines, compressors, pumps, and motors. In these applications, accurate shaft vibration measurement is critical for predictive maintenance. By detecting issues early, you avoid catastrophic failures that lead to expensive repairs and production losses.

For example, in a petrochemical plant, a compressor equipped with this probe can provide continuous data to a condition monitoring system. The probe's robust design ensures reliable operation even in harsh environments, reducing the need for frequent replacements. This directly improves your return on investment by minimizing downtime and maintenance labor.

Installation & Setup Guidance

Proper installation is essential for accurate readings and long service life. Follow these general guidelines:

Mount the probe with the specified torque (maximum 0.565 N•m) to avoid damaging the connector.

Ensure the probe tip is clean and free of debris before installation.

Use the correct thread engagement (maximum 0.563 inches) to avoid cross-threading.

Route the cable away from high-temperature surfaces and sharp edges to prevent damage.

For systems without extension cables (one-meter systems), verify the total length matches your requirement.

Correct installation reduces the risk of measurement errors and premature failure, saving you from costly rework and downtime.

Maintenance & Reliability

Regular inspection of the probe and cable is recommended to ensure reliable operation. Check for physical damage, cable wear, and connector integrity. The probe's design, including the TipLoc and CableLoc features, minimizes common failure modes, but periodic checks are still necessary.

From a cost perspective, a well-maintained probe lasts longer, reducing replacement frequency. The 3300 XL series is known for its durability, and the 8 mm probe size provides a thicker PPS encapsulation that withstands physical abuse. This means fewer spares to stock and lower inventory costs.

For safety-rated installations, always follow the manufacturer's safety manual and applicable regulations. Do not attempt internal repairs; replace the probe if damaged.

Compatibility & Integration

The 330191-00-16-90-CN is designed to work with Bently Nevada proximity systems. It requires a power supply of -17.5 Vdc to -26 Vdc (with nonincendive circuit) or -23 Vdc to -26 Vdc with barriers, at 12 mA maximum consumption. The output resistance is 50 Ω, and sensitivity is less than 2 mV change per volt change in input voltage.

This probe is compatible with Bently Nevada extension cables and monitors. When ordering, ensure you select the correct total length and cable type (standard or extended temperature range) to match your system configuration. The 9.0-meter length is often used in direct connection setups, eliminating the need for an extension cable.

Selection Guide & Purchasing Advice

Before purchasing the 330191-00-16-90-CN, verify the following:

Confirm the total length (9.0 meters) meets your installation requirement.

Check the thread type (3/8-24 UNF) matches your mounting hole.

Determine if you need the optional FluidLoc cable option to prevent oil leakage.

Ensure the probe's temperature classification (T1 to T5) is suitable for your environment.

BluePLC Industrial offers this probe as new, original factory-packed equipment with a 12-month warranty. We are a trusted supplier of industrial automation parts, ensuring genuine products and reliable delivery. Contact us for current availability and any technical questions.

For complete technical specifications, please contact BluePLC Industrial.