330180-92-05 Bently Nevada 3300 XL Proximitor Sensor with 9.0 Meters System Length CSA ATEX IECEx Approvals and SpringLoc Terminals

Then the -05 side is about certification. This version carries CSA, ATEX, and IECEx certified sensor approvals, so it’s suitable for hazardous or explosive industrial environments like turbines or compressor stations.

It can also work with legacy 3300 series probes, including 5 mm and 8 mm types, so there’s some backward compatibility there. Just keep in mind, if you mix XL and non-XL parts, the system performance will basically drop back to non-XL level — it still works, but you lose some accuracy and features.

Power supply is a negative DC range, typically -17.5 Vdc to -26 Vdc, depending on whether it’s going through safety barriers. For setup, the initial gap is usually around -9 Vdc, which roughly equals about 1.27 mm (50 mil).

For system distance, the max field wiring length to a Bently Nevada 3500 system framework rack is around 305 meters, using shielded triad cable. In most steam turbine or compressor setups, that’s more than enough.

If the shaft material is different — for example special alloy or non-standard turbine material — it’s usually better to confirm calibration at ordering stage. Otherwise, you might see small deviation in vibration or displacement readings during fluid-film bearing monitoring or high-speed shaft operation.