Product Introduction
The Bently Nevada 330191-00-16-20-00 is a 3300 XL 8 mm Extended Temperature Range (ETR) proximity probe designed for reliable vibration and position sensing in rotating machinery. This industrial automation module addresses common failure modes such as probe tip detachment and cable pull-out with patented TipLoc and CableLoc technologies. The probe features a 3/8-24 UNF thread, without armor, and a total length of 2.0 meters (6.6 feet). Its robust construction ensures long-term accuracy in harsh environments.
Technical Specifications Breakdown
The Bently Nevada 330191-00-16-20-00 offers critical performance parameters derived from its design. Below is a summary of key specifications:
| Parameter |
Value |
| Power Supply |
-17.5 Vdc to -26 Vdc (nonincendive), -23 Vdc to -26 Vdc with barriers |
| Supply Sensitivity |
Less than 2 mV change per volt change |
| Output Resistance |
50 Ω |
| Nominal Probe DC Resistance (2.0 m) |
7.88 ± 0.50 Ω |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Probe Weight |
323 g/m (11.4 oz/m) |
| Temperature Range (Class T1) |
-55°C to +232°C |
| Maximum Connector Torque |
0.565 N·m (5 in·lbf) |
These specifications ensure stable operation under varying supply voltages and temperature extremes, making the 330191-00-16-20-00 suitable for continuous monitoring.
Installation and Setup Guidance
Proper installation of the Bently Nevada 330191-00-16-20-00 is critical for accurate readings. The probe uses a Viton® O-ring to seal differential pressure between the tip and case. Ensure the probe case thread engagement does not exceed 0.563 inches for the 3/8-24 thread. Maximum connector torque is 0.565 N·m (5 in·lbf) to avoid damage to gold-plated connectors. When using nonincendive circuits, follow installation drawing 140979. The probe and extension cable incorporate a patented CableLoc design with 330 N (75 lbf) pull strength for secure attachment.
Maintenance and Reliability
The Bently Nevada 330191-00-16-20-00 is designed for low-maintenance operation. The PPS probe tip provides thick encapsulation for physical abuse resistance. Temperature schedules are defined for various ambient conditions; for EPL Ga and Gc, the probe operates from -55°C up to +232°C (T1). Regular inspection of the O-ring and cable integrity is recommended. The optional FluidLoc cable prevents oil leakage, reducing contamination risks in lubrication systems. The rugged stainless steel case (AISI 303 or 304) withstands industrial environments.
Selection Guide and Purchasing Advice
When ordering the Bently Nevada 330191-00-16-20-00, verify the total length (2.0 meters), unthreaded length (0.0 inches), and overall case length (1.6 inches). This model comes without armor and without agency approval. For compatible extension cables and proximity systems, refer to the manufacturer’s documentation. PLC Source PRO offers this Bently Nevada 330191-00-16-20-00 with original factory packing and a 12-month warranty. Ensure your system matches the power supply requirements and temperature class before purchase.