330780-50-CN Bently Nevada 3300 XL 11mm Proximitor Sensor for Turbine Vibration Monitoring
330780-50-CN Steam turbine vibration monitoring
3300 XL 11mm Proximitor Sensor 3300 XL 11mm probe
Eddy current displacement sensor Petrochemical refinery machinery protection
Place of Origin:
USA
Brand Name:
Bently Nevada
Model Number:
330780-50-CN
330780-50-CN Steam turbine vibration monitoring
,3300 XL 11mm Proximitor Sensor 3300 XL 11mm probe
,Eddy current displacement sensor Petrochemical refinery machinery protection
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84661-20 Bently Nevada Velomitor Armored Interconnect Cable for Rotating Machinery
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High-Temp Turbine Vibration Sensor Cable 330190-035-00-00 Bently Nevada 3300 XL ETR
The 330780-50-CN is a non-contact proximity sensor for heavy-duty rotating machinery. It captures micrometer-level vibrations in turbines and compressors to provide early warnings before machine failure. With NEPSI/CCC certifications, it is ideal for hazardous, high-risk environments in China's petrochemical and power sectors.
- 5.0-Meter System Length (Panel Mount): Allows remote installation in safe control cabinets, away from high machine temperatures.
- 3.94 V/mm Sensitivity: Amplifies minute shaft displacements to detect early bearing wear instantly.
- -CN Certification (NEPSI / CCC): Ensures instant compliance with Chinese safety and fire regulations.
Engineer's Note: You must pair this sensor with a Bently Nevada 11 mm probe and cable so the total system length equals exactly 5 meters. Incorrect lengths cause measurement errors.
Amikon supplies industrial automation spare parts, mainly PLC, DCS, and TSI systems, to more than 160 countries.
- North America: Shows steady demand, especially US and Canada. A lot of work comes from oil & gas plants and also automotive-related production sites.
- Europe: Is similar in scale, Germany and UK stand out. You still see chemical plants and heavy equipment lines placing regular orders.
- Middle East and Africa: Usually relate to refinery projects and mining sites. UAE, Saudi Arabia, South Africa come up often in shipments, sometimes also remote field installations.
- Asia-Pacific: Is quite broad. China, Singapore, Australia, India … demand is mixed, from semiconductor fabs to power stations and metallurgy plants.
- South America: Is smaller in volume but stable. Brazil, Chile, Argentina mostly connected with mining, copper operations, and hydropower projects.
A lot of customers ask this before ordering. In fact, the sensing performance doesn't really change. The main point is certification. The 330780-50-CN belongs to the Bently Nevada CN series and carries NEPSI certified Bently Nevada approval for the Chinese market. If the machine will be installed in China, especially in petrochemical or power generation projects, this is usually the version requested by the end user.
No. The 330780-50-CN was designed around the 3300 XL 11mm Proximitor Sensor and a complete 11mm 5-meter transducer system. Its 3.94 V/mm (100 mV/mil) scale factor matches 11mm components only. Using an 8mm probe or changing the total cable length will normally affect axial thrust position measurement and radial vibration monitoring accuracy.
The probe picks up shaft movement, and the 330780-50-CN conditions that signal before sending it to the Bently Nevada 3500 system. After that, a 3500/42M Proximitor Monitor or 3500/40M Proximity Monitor handles the data for API 670 machinery protection system applications on turbines, compressors, and similar rotating machines.
I'd start with the simple things. Loose connectors, damaged extension cables, or the wrong probe gap cause this more often than a failed sensor. If the reading stays close to -22 Vdc, it's often an open circuit. Around 0 to -2 Vdc is usually related to a short circuit or missing power from the monitor. A quick wiring inspection solves plenty of commissioning issues.
| 330104-15-23-10-02-00 | 330878-50-00 |
| 330104-19-25-10-11-05 | 330103-00-12-10-01-00 |
| 330103-00-05-10-02-05 | 330103-00-16-10-01-00 |
| 330103-00-18-05-02-05 | RS901104-03-050-10-01 R200602-400808 |
| 330130-045-02-05 | 330105-02-12-50-02-00 |
| 330101-00-08-05-02-05 | 350500-00-00-00-11-00 |
| 330130-085-00-05 | 330190-080-01-00 |
| 125388-01 | 3500/77M 140734-07 |
| 128275-01/128275-01F 130944-01 | 2201/03-01 |
| 330780-91-00 | 1900/65 |
| 330103-00-14-10-01-00 | 21747-080-00 |
| 330730-080-02-00 | 330730-080-01-00 |
| 330104-05-13-10-02-00 | 330930-060-00-00 |
| 3500/23E | 125388-01H 125388-01 |
| 3500/15E | 125720-02 |
| 136711-01 | 138708-01 |
| 330703-000-040-10-11-00 | 330104-00-08-10-02-00 |
| 330705-02-18-10-02-00 | 330105-02-12-05-02-CN |
| 330703-000-070-10-02-00 | 330130-045-00-CN |
| 330101-10-27-05-02-05 | 330103-00-04-05-02-00 |
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