330191-00-16-90-05 Bently Nevada 3300 XL 8mm ETR Probe 9m

Product Overview: Bently Nevada 330191-00-16-90-05

The Bently Nevada 330191-00-16-90-05 is a 3300 XL 8 mm Extended Temperature Range (ETR) proximity probe engineered for precise, non-contact displacement and vibration measurement in rotating machinery. As a maintenance engineer, you need sensors that survive harsh conditions and deliver consistent data. This probe features a 3/8-24 UNF thread, a 1.6-inch overall case length, and a 9.0-meter total length. Its PPS probe tip and AISI 303 or 304 stainless steel case provide ruggedness against physical abuse. The 330191-00-16-90-05 carries CSA, ATEX, and IECEx approvals, making it suitable for hazardous area installations. Each unit is new and original in factory packing, backed by a 12-month factory warranty.

Key Specifications and Performance

Understanding the electrical and mechanical parameters is critical for reliable integration. The following table summarizes the core specifications of the 330191-00-16-90-05.

• Input Voltage: -17.5 Vdc to -26 Vdc (nonincendive, 12 mA max); -23 Vdc to -26 Vdc with barriers
• Output Resistance: 50 Ω
• Nominal Probe DC Resistance: 9.87 ± 0.50 Ω at 9.0 m
• Total Length: 9.0 meters (29.5 feet)
• Thread: 3/8-24 UNF, maximum engagement 0.563 in
• Probe Tip Material: Polyphenylene sulfide (PPS)
• Case Material: AISI 303 or 304 stainless steel
• Connector Material: Gold-plated brass or beryllium copper
• Maximum Connector Torque: 0.565 N·m (5 in·lbf)
• Tensile Strength: 330 N (75 lbf) case to lead; 270 N (60 lbf) lead to extension cable
• Approvals: CSA, ATEX, IECEx

Note the supply sensitivity: less than 2 mV output change per volt input change. This ensures stable measurements even with minor power fluctuations. The 330191-00-16-90-05 requires a negative voltage supply; operation above -23.5 Vdc can reduce linear range, so verify your barrier or nonincendive circuit complies with installation drawing 140979.

Installation and Maintenance Guidance

Proper installation is essential for accurate data and long service life. The 3/8-24 UNF thread with a maximum engagement of 0.563 inches provides a secure mount. Use the specified maximum connector torque of 0.565 N·m (5 in·lbf) to avoid damage. The probe seals differential pressure between tip and case via a Viton O-ring, but it is not pressure-tested before shipment. For hazardous areas, follow the temperature classification schedule; for example, T4 allows ambient temperatures from -55°C to +80°C. When servicing, inspect the probe tip and cable for physical damage. The patented TipLoc and CableLoc designs enhance robustness, but routine checks of the connector and cable routing prevent unexpected failures. Because the 330191-00-16-90-05 is an ETR probe, it withstands higher temperatures than standard models, reducing downtime in high-temperature applications.

Applications and Compatibility

The 330191-00-16-90-05 excels in condition monitoring of steam turbines, compressors, and pumps. Its 8 mm probe diameter offers a thicker coil encapsulation, making it more rugged than smaller probes. For one-meter systems, no extension cable is used; however, this 9-meter probe typically pairs with a Bently Nevada extension cable and Proximitor sensor. The 75 Ω triaxial cable with FEP insulation ensures signal integrity over long runs. When integrating into existing 3300 XL systems, verify that the total system length matches the Proximitor's calibration. The 330191-00-16-90-05 is compatible with BN extension cables and Proximitors to meet entity parameters for hazardous area use.