Product Introduction
The Bently Nevada 330191-00-40-20-05 replaces older probe designs with enhanced durability and reliability. This 3300 XL 8 mm ETR proximity probe incorporates patented TipLoc and CableLoc technologies for a robust bond between the probe tip and body, and increased pull strength of 330 N (75 lbf) at the probe case to probe lead. The 330191-00-40-20-05 uses a 3/8-24 UNF thread without armor, with an unthreaded length of 0.0 in, an overall case length of 4.0 in, and a total length of 2.0 meters (6.6 feet). It comes with CSA, ATEX, and IECEx approvals (option 05).
Upgrading to the Bently Nevada 330191-00-40-20-05 ensures your machinery benefits from the latest improvements in probe sealing and cable retention. The optional FluidLoc cable prevents oil leaks through the cable interior. For shorter runs, one-meter systems do not require an extension cable.
Technical Specifications
| Parameter |
Value |
| Power Supply (nonincendive circuit) |
-17.5 Vdc to -26 Vdc, 12 mA max consumption |
| Power Supply (with barriers) |
-23 Vdc to -26 Vdc |
| Supply Sensitivity |
Less than 2 mV change per volt change |
| Output Resistance |
50 Ω |
| Probe DC Resistance (2.0 m length) |
7.88 ± 0.50 Ω |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel (SST) |
| Tensile Strength (probe case to probe lead) |
330 N (75 lbf) |
| Tensile Strength (probe lead to extension cable connectors) |
270 N (60 lbf) |
| Connector Material |
Gold-plated brass or beryllium copper |
| Maximum Connector Torque |
0.565 N·m (5 in·lbf) |
| Probe Case Thread |
3/8-24 UNF |
| Maximum Length of Thread Engagement |
0.563 in |
| Weight |
323 g/m (11.4 oz) |
| Cable Options |
Standard 75Ω triaxial FEP insulated or extended temperature PFA insulated; armor optional |
| Temperature Classification (EPL Ga/Gc) |
T1 (-55°C to +232°C), T2 (-55°C to +177°C), T3 (-55°C to +120°C), T4 (-55°C to +80°C), T5 (-55°C to +40°C) |
Industry Applications
The Bently Nevada 330191-00-40-20-05 is ideal for vibration and position monitoring in rotating machinery such as turbines, compressors, pumps, and motors. Its 8 mm probe offers a thicker PPS encapsulation and larger case diameter for improved resistance to physical abuse. Use this probe to upgrade legacy systems that require a rugged, high-reliability sensor with extended temperature range capability.
Installation & Setup Guidance
When installing the Bently Nevada 330191-00-40-20-05, ensure the mounting hole is properly threaded 3/8-24 UNF and the thread engagement does not exceed 0.563 in. The probe seals differential pressure using a Viton O-ring; note that probes are not pressure tested prior to shipment. For best accuracy, use with BN extension cables and connect to a BN Proximitor. The total probe length is 2.0 m, and for longer distances, optional extension cables are available. Avoid over-tightening the connector; apply maximum 0.565 N·m torque.
Selection Guide & Purchasing Advice
Before purchasing, confirm your system requirements: total probe length (2.0 m), thread type (3/8-24 UNF), and agency approvals (CSA, ATEX, IECEx). The 330191-00-40-20-05 is a "without armor" version. If you need armored cable, consider other options in the 3300 XL series. PLC Source PRO offers this Bently Nevada 330191-00-40-20-05 probe new in factory packing with a 12-month warranty. Ensure compatibility with your existing Proximitor and extension cable setup.