330191-00-16-10-CN | Bently Nevada 3300 XL 8 mm ETR Probe

Product Overview

When machinery reliability is non-negotiable, the Bently Nevada 330191-00-16-10-CN delivers precise vibration and position monitoring. This 3300 XL 8 mm ETR probe is engineered for harsh industrial environments, offering a rugged design that withstands physical abuse while maintaining accurate readings. As a maintenance engineer, you need components that minimize downtime and simplify service—this probe is built for exactly that.

The 330191-00-16-10-CN features a 3/8-24 UNF thread and a 1.0 meter (3.3 feet) total length, making it versatile for various mounting configurations. Its patented TipLoc molding method ensures a robust bond between the probe tip and body, while the CableLoc design provides 330 N (75 lbf) pull strength for secure cable attachment. These innovations reduce the risk of mechanical failure, a common pain point in rotating machinery monitoring.

Key Technical Specifications

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

Total Length: 1.0 meter (3.3 feet)

Overall Case Length: 1.6 inches

Supply Voltage: Requires -17.5 Vdc to -26 Vdc (with nonincendive circuit per drawing 140979, 12 mA max consumption; -23 Vdc to -26 Vdc with barriers)

Output Resistance: 50 Ω

Sensitivity: Less than 2 mV change in output voltage per volt change in input voltage

Probe DC Resistance: 7.59 Ω ± 0.50 (for 1.0 m length)

Probe Tip Material: Polyphenylene sulfide (PPS)

Probe Case Material: AISI 303 or 304 stainless steel

Cable: 75Ω triaxial, FEP insulated (standard) or PFA insulated (extended temperature range), lengths 0.5 to 9 meters

Connector Material: Gold-plated brass or beryllium copper

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

Thread Engagement: 3/8-24, maximum 0.563 inches

Weight: 323 g/m (11.4 oz)

These specifications ensure reliable operation in demanding conditions. The 8 mm probe design provides thicker encapsulation of the probe coil in PPS plastic, enhancing durability against mechanical stress. The stainless steel case adds further robustness, making this probe a solid choice for long-term installation.

Industry Applications

The 330191-00-16-10-CN is ideal for monitoring vibration and shaft position in critical rotating equipment such as turbines, compressors, and pumps. In a typical power plant, this probe can be mounted on bearing housings to detect early signs of imbalance or misalignment, allowing predictive maintenance before catastrophic failure occurs.

In oil and gas facilities, the probe's optional FluidLoc cable option prevents oil leakage through the cable interior, a valuable feature in lubrication-rich environments. The probe's ability to operate across a wide temperature range (from -55°C to +232°C for T1 classification) makes it suitable for both hot and cold process areas.

Installation & Setup Guidance

Proper installation is critical for accurate readings. Follow these steps for best results:

Ensure the mounting surface is clean and free of debris before installing the probe.

Use the correct thread engagement (maximum 0.563 inches) to avoid over-tightening, which can damage the probe tip.

Apply the recommended torque of 0.565 N•m (5 in•lbf) to the connector to prevent loosening from vibration.

For one-meter systems, no extension cable is required—connect directly to the monitor.

Verify the supply voltage is within -17.5 Vdc to -26 Vdc (or -23 Vdc to -26 Vdc with barriers) to ensure optimal linear range.

Always refer to the installation drawing 140979 for nonincendive circuit connections. Proper grounding and shielding are essential to avoid electrical noise interference.

Maintenance & Reliability

Routine inspection of the probe and cable is essential to maintain performance. Check for physical damage to the probe tip or cable, especially in high-vibration areas. The probe's robust design—with 330 N pull strength—reduces the likelihood of cable detachment, but periodic checks are still recommended.

The probe's sealing design, including a Viton® O ring, prevents differential pressure issues, but it is not pressure tested prior to shipment. In applications with extreme pressure differentials, consult the manufacturer's guidelines. For safety-rated systems, follow the manufacturer's safety manual for inspection intervals and testing procedures.

By choosing the 330191-00-16-10-CN, you invest in a component that minimizes maintenance frequency, reducing overall operational costs. Its durable materials and proven design extend service life, offering a strong return on investment.

Compatibility & Integration

This probe is designed to work with Bently Nevada 3300 XL monitoring systems. When used with BN extension cables and connected to BN Prox, the probe meets entity parameters for intrinsic safety. The 75Ω triaxial cable ensures signal integrity over distances up to 9 meters, making it compatible with standard Bently Nevada monitors.

For existing installations, the 330191-00-16-10-CN can replace older 3300 series probes, providing improved durability and performance. Verify compatibility with your current monitor firmware and extension cables before ordering.

Selection Guide & Purchasing Advice

Before purchasing the 330191-00-16-10-CN, confirm the following:

Total length requirement: 1.0 meter is standard; other lengths (0.5, 1.5, 2, 3, 5, 9 meters) are available.

Thread type: 3/8-24 UNF is specified; ensure your mounting hole matches.

Armor option: This model comes without armor; choose armored if cable protection is needed.

Agency approval: CN (Country Specific Approval) is included; verify it meets your local regulations.

BluePLC Industrial offers this product as new and original in factory packing, with a 12-month warranty. As a trusted supplier, we ensure genuine parts and reliable delivery. Contact us for current availability and lifecycle status before ordering.

For complete technical specifications and support, reach out to BluePLC Industrial—we are here to help you maintain your machinery with confidence.