330103-00-07-20-02-00 Bently Nevada 3300 XL 8 mm Proximity Probes

The Bently Nevada 330103-00-07-20-02-00 probe is basically an M10x1 3300 XL 8 mm sensor. The code is just mechanical + cable split.

“330103” → 8 mm tip, M10x1 thread, no armor
“00” → 0 mm unthreaded
“07” → 70 mm case length
“20” → 2.0 m integral cable
“02” → ClickLoc connector
“00” → no approval option

Mostly spacing. Nothing fancy. With the 330103-00-07-20-02-00 probe, XY setups usually keep around 38 mm (1.5 in) minimum between tips for radial channels. Axial layouts a bit more.

If spacing is off, you start seeing small channel interaction. Not immediate failure, just unstable readings.

No, not really. It already has a 2.0 m cable built in, so it’s locked into system matching rules in the 3300 XL transducer setup. Trying to push it into a 9 m chain breaks calibration balance. It has to follow matched extension + Proximitor configuration.

M10x1 engagement limit around 15 mm, that’s the safe boundary. Torque max is 33.9 N·m (300 in·lbf), but field guys usually stay lower. Depends on condition, sometimes quite a bit lower.

Over-torque doesn’t fail immediately, it shows up later as thread stress or housing distortion.

Range is -52°C to +177°C. Inside normal turbine conditions, scaling stays around 7.87 V/mm (200 mV/mil). Small drift only, usually ignored unless calibration-sensitive loop. Used a lot in turbines and compressors where temperature is not stable anyway.

Has a Viton O-ring inside, that’s the sealing point. Not meant for aggressive chemicals or direct corrosive fluid contact. High pressure cases usually need separate validation on site. In most plants it stays in turbine/compressor monitoring loops, not chemical process exposure.