Product Overview
When machine vibration monitoring demands reliable, high-accuracy proximity probes, the Bently Nevada 330191-00-70-15-05 delivers superior robustness and performance. This 8 mm ETR (Extended Temperature Range) probe is part of the acclaimed 3300 XL series, engineered to withstand harsh industrial environments. The 330191-00-70-15-05 features patented TipLoc and CableLoc designs that provide exceptional mechanical strength and signal integrity, reducing common failure modes such as cable pull-out and tip separation.
Technical Specifications
The following table outlines key parameters of the Bently Nevada 330191-00-70-15-05 proximity probe:
| Parameter |
Value |
| Total Length |
1.5 meter (4.9 feet) |
| Overall Case Length |
7 in |
| Unthreaded Length |
0.0 in |
| Thread Size |
3/8-24 UNF |
| Power Requirement (nonincendive) |
-17.5 Vdc to -26 Vdc at 12 mA max |
| Power Requirement (with barriers) |
-23 Vdc to -26 Vdc |
| Supply Sensitivity |
<2 mV change in output voltage per volt change in input voltage |
| Output Resistance |
50 Ω |
| Nominal Probe DC Resistance (1.5 m) |
7.73 ± 0.50 Ω |
| Probe Tip Material |
Polyphenylene sulfide (PPS) |
| Probe Case Material |
AISI 303 or 304 stainless steel |
| Cable Type |
75Ω triaxial, FEP insulated (standard); PFA insulated (extended temp) |
| Tensile Strength (probe case to lead) |
330 N (75 lbf) |
| Tensile Strength (lead to extension cable connector) |
270 N (60 lbf) |
| Maximum Connector Torque |
0.565 N·m (5 in·lbf) |
| Probe Weight |
323 g/m (11.4 oz) |
| Agency Approvals |
CSA, ATEX, IECEx |
Industry Applications
The Bently Nevada 330191-00-70-15-05 excels in critical rotating machinery monitoring, including steam turbines, centrifugal compressors, and large pumps. Its 8 mm design provides thicker encapsulation for the probe coil, offering superior resistance to physical abuse compared to smaller probes. The patented CableLoc feature ensures 330 N pull strength, preventing cable failures in high-vibration environments. The optional FluidLoc cable further prevents oil leakage through the cable interior, making this probe ideal for applications where oil mist or liquid ingress is a concern.
Installation & Setup Guidance
Proper installation of the 330191-00-70-15-05 requires attention to thread engagement and torque specifications. The 3/8-24 UNF thread has a maximum engagement length of 0.563 in. Use a torque of 0.565 N·m (5 in·lbf) on the connector to avoid damage. Ensure the probe tip mates correctly with the target surface; the Viton® O-ring provides a differential pressure seal but probes are not pressure tested before shipment. For one-meter systems, no extension cable is needed. Always follow installation drawing 140979 for nonincendive circuit connections.
Compatibility & Integration
The Bently Nevada 330191-00-70-15-05 is designed to work seamlessly with Bently Nevada (BN) extension cables and BN Proximitors. Probe entity parameters are met only when used with BN extension cables. The probe cable is 75Ω triaxial, available in standard FEP or extended-temperature PFA insulation. Total probe lengths range from 0.5 to 9 meters. Armor options (flexible AISI 302 or 304 SST with FEP jacket) are available for added protection.
Selection Guide & Purchasing Advice
When selecting the 330191-00-70-15-05, verify the total length option (15 = 1.5 m) and agency approval (05 = CSA, ATEX, IECEx). This probe comes without armor; optional armor can be ordered separately. Ensure your system operates within the power requirements: -17.5 to -26 Vdc for nonincendive circuits, or -23 to -26 Vdc with barriers. For reliable sourcing of genuine Bently Nevada probes, choose PLC Source PRO as your trusted supplier. We offer new, original factory-packed units with a 12-month warranty.