Bently Nevada 330780-90-CN Proximitor Sensor
A nine-metre panel-mount 11 mm Proximitor Sensor carrying a nameplate-specific CN suffix.
Key Information
330780-90-CN identifies a nine-metre panel-mount Proximitor Sensor in the Bently Nevada 3300 XL 11 mm family. It conditions the signal from the matching probe and extension-cable chain for machinery position or vibration monitoring.
The CN suffix is retained exactly from the submitted identity and should be checked against the installed label and controlled project documentation before quotation or substitution.
Functions
- Conditions one 3300 XL 11 mm proximity-probe chain at the documented nine-metre system length.
- Provides the long-range system output used for thrust, differential-expansion, rod-position and phase measurements.
- Panel-mount construction integrates with traditional monitoring cabinets.
- RFI/EMI-resistant electronics and SpringLoc terminals support industrial field installation.
Specifications
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Model | 330780-90-CN |
| Product Family | 3300 XL 11 mm |
| System Length | 9.0 m |
| Mounting | Panel mount |
| Suffix | CN — verify from nameplate and project record |
| Sensor Input | One compatible 11 mm probe plus extension cable |
| Linear Range | 4.0 mm (160 mil) |
| Average Scale Factor | 3.94 V/mm (100 mV/mil) |
| Recommended Gap | 2.5 mm (100 mil) |
| Output Resistance | 50 Ω |
| Typical Field-Wire Limit | Up to 305 m, subject to frequency-response review |
Installation
- Photograph the full label and terminal wiring before removing 330780-90-CN.
- Confirm probe lead plus extension cable equals nine metres and belongs to the 11 mm family.
- Preserve panel isolation, shield termination and barrier arrangement where installed.
- Commission with target, gap, scale and monitor-response checks.
Lifecycle
- Keep the CN suffix unchanged in procurement and maintenance records until its controlled meaning is confirmed.
- Maintain the full probe, cable, Proximitor and monitor-channel record as one calibrated loop.
- Do not replace only the electronics when migrating from a legacy non-11 mm transducer system.
FAQ
How should the CN suffix on 330780-90-CN be handled?
Keep it unchanged and verify it from the physical label and controlled project records before ordering another suffix.
Can 330780-90-CN replace 330780-90-00?
Do not assume so; confirm what the CN suffix represents for the installed project, approvals and documentation.
Which cable combination works with 330780-90-CN?
The probe integral lead and 3300 XL 11 mm extension cable must total nine metres.
Can 330780-90-CN be changed to DIN mounting without other work?
The electrical length may remain nine metres, but mounting hardware, cabinet layout, grounding and wiring must be reviewed.
What evidence should be supplied for a 330780-90-CN quotation?
Provide label photographs, probe and cable numbers, cabinet mounting, monitor type, barriers and project drawing.
What can cause an incorrect reading after 330780-90-CN replacement?
Wrong total cable length, mixed transducer families, poor connectors, target differences, gap error or an unverified suffix can all produce a mismatch.
