Bently Nevada 330850-51-00 25 mm Proximitor Sensor
A five-metre-system Proximitor Sensor with DIN-rail mounting and the no-approvals ordering option.
Key Information
330850-51-00 is the Proximitor Sensor for a 3300 XL 25 mm proximity transducer system. Ordering code 51 identifies a 5.0 m system length with DIN-rail mounting, while code 00 identifies the no-approvals option.
The sensor must be used with the matching 25 mm probe and extension-cable combination whose lengths total the specified system length. Mixing components from another system length changes the calibrated transducer system.
Functions
- Conditions the signal from the matched 3300 XL 25 mm probe and extension cable.
- Provides the electrical output used by compatible machinery-monitoring instrumentation.
- Supports non-contact shaft position and vibration measurement within the complete calibrated system.
Specifications
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Part Number | 330850-51-00 |
| Product Family | 3300 XL 25 mm proximity transducer system |
| Component | Proximitor Sensor |
| System Length | 5.0 m (16.4 ft) |
| Mounting | 35 mm DIN rail |
| Agency Approval Option | 00 — no approvals |
| Matching Rule | Probe plus extension cable must equal the 5.0 m system length |
Installation
- Confirm probe, extension cable and Proximitor Sensor all belong to the 5.0 m 25 mm system.
- Mount the sensor on a suitable 35 mm DIN rail with adequate connector clearance.
- Route transducer cabling separately from high-energy conductors and preserve the specified grounding practice.
- Verify gap, output behavior and monitor scaling through the approved commissioning procedure.
Lifecycle
- Replace mismatched system components as a documented set rather than mixing cable lengths.
- Keep the probe, cable and sensor part numbers in one loop record.
- Check the required approval option again whenever the installation area changes.
FAQ
Can 330850-51-00 be used with a 9 m probe-and-cable system?
No. The -51 sensor is calibrated for a 5.0 m system; the complete probe and extension-cable length must match.
What is the difference between 330850-51-00 and 330850-51-05?
Both are 5.0 m DIN-mount versions, but -00 is the no-approvals option and -05 is the multiple-approvals option.
Is the 35 mm DIN rail included with 330850-51-00?
The installation drawing identifies the DIN rail as a mounting requirement rather than part of the sensor assembly.
What information prevents a mismatched 330850-51-00 order?
Send the probe, extension-cable and Proximitor labels plus the required system length and approval context.
What should be checked after replacing 330850-51-00?
Confirm mechanical mounting, cable integrity, gap voltage, monitor scaling and channel alarm behavior.


