Product Overview
Bently Nevada 330191-00-16-10-CN is a 3300 XL 8 mm Extended Temperature Range (ETR) proximity probe designed for vibration and shaft displacement monitoring in high-temperature rotating machinery environments. It is commonly applied in turbines, compressors, and refinery pumps where thermal stability and measurement accuracy directly affect machine protection logic.
The ETR design extends operating capability beyond standard probe temperature limits, ensuring stable signal behavior in hot housing zones and aggressive industrial conditions. The 1.0 meter system length supports standard installation routing in compact machine assemblies.
CN approval marking supports deployment in regulated hazardous areas with compliance requirements such as ATEX, IECEx, and NEPSI.
Configuration Interpretation
| Element |
Description |
| 330191 |
3300 XL 8 mm ETR probe series |
| 00 |
No unthreaded length |
| 16 |
1.6 in overall case length |
| 10 |
1.0 m total length |
| CN |
Hazardous area approvals (ATEX / IECEx / NEPSI) |
This configuration defines probe geometry, installation depth, and compliance classification for industrial safety environments.
Technical Specifications
| Parameter |
Specification |
| Model |
330191-00-16-10-CN |
| Brand |
Bently Nevada |
| Origin |
United States |
| Weight |
0.7 kg |
| Shipping Weight |
2 kg |
| Product Type |
3300 XL 8 mm ETR proximity probe |
| Thread Type |
3/8-24 UNF |
| Total Length |
1.0 m |
| Case Length |
1.6 in |
| Operating Category |
Extended Temperature Range |
| Approvals |
ATEX, IECEx, NEPSI (CN variant) |
Technical FAQs
Is this probe suitable for high-temperature turbine environments?
Yes. The ETR design supports extended thermal operating conditions in rotating machinery zones.
Does CN version change electrical performance?
No. CN refers to approval and compliance marking only.
Can it replace standard 3300 XL probes?
Yes, if mechanical and electrical specifications match system requirements.
Is this probe compatible with 3300 XL extension cables?
Yes. It integrates with standard 3300 XL system architecture.
Installation & Field Engineering Notes
Maintain stable probe gap calibration during cold shutdown conditions for repeatable signal accuracy.
Avoid direct contact between probe cable and hot surfaces to prevent insulation degradation.
Use proper strain relief near connector to reduce vibration-induced mechanical stress.
Ensure proper grounding of cable shield to maintain signal integrity in EMI-heavy environments.
Engineering Application Guidance
The ETR probe structure is optimized for environments with elevated ambient and housing temperatures.
It improves signal stability in turbine bearing housings and compressor casings where thermal drift affects standard probes.
Mechanical design ensures compatibility with existing 3300 XL installation footprints.
Proper installation alignment is critical to avoid phase shift in vibration readings.