330851-04-000-020-10-01-00 is a smooth 1.06 in diameter side-exit probe for the 3300 XL 25 mm proximity transducer system. Its order code specifies a 2.0 in overall case length, the smooth-case 000 unthreaded option and a 1.0 m total probe length.
The 01 option on 330851-04-000-020-10-01-00 adds flexible AISI 302 stainless-steel armor with a PFA outer jacket around the standard 75 Ω PFA-insulated FluidLoc lead. The side-exit construction and 25.4 mm minimum bend radius should be considered together when planning the clamp position, cable departure and service clearance.
As the sensing component in a correctly configured 3300 XL 25 mm chain, 330851-04-000-020-10-01-00 supports differential-expansion measurement on mid-size to large steam turbine generators. Probe and extension-cable lengths must equal the connected Proximitor Sensor system length, while the final 00 identifies the No Approvals option.