Bently Nevada 330851-02-000-080-90-01-05 3300 XL 25 mm Proximity Probe
An M30 × 2 probe with an 80 mm case, 9.0 m total length, stainless-steel armor and multiple approvals.
Overview
Bently Nevada 330851-02-000-080-90-01-05 is a 3300 xl 25 mm proximity probe identified by the complete submitted ordering string. Its suffixes and revision fields remain part of the supply identity.
Selection of 330851-02-000-080-90-01-05 should be based on the installed label, host-system record and the verified interface details below; neighboring family numbers are not treated as interchangeable.
Engineering Data
Functions
The large 25 mm sensing system supports differential-expansion measurement on mid- to large-size turbine generators.
Its 12.7 mm linear range supports measurements that exceed the normal range of smaller proximity systems.
The M30 × 2 threaded case and 80 mm case length define the mechanical fit.
Stainless-steel armor protects the 9.0 m lead while remaining a distinct ordering option.
Applications
- Differential-expansion measurement on compatible steam-turbine generator installations.
- Replacement of the exact armored 9.0 m probe execution in a documented 25 mm system.
- Long-range non-contact shaft-position measurement with the approved target and electronics.
Lifecycle & Service
- Record the probe, companion electronics and any extension components as one matched system before removal.
- Verify M30 × 2 mounting depth, 80 mm case clearance and the complete 9.0 m cable route.
- Do not substitute the shorter unarmored 330851 execution from this batch.
- Set the approved gap and confirm linear response, polarity and channel calibration after installation.
FAQ
What most clearly distinguishes 330851-02-000-080-90-01-05 from the shorter 330851 in this batch?
It has an 80 mm case, 9.0 m total length and stainless-steel armor; the other execution has a 40 mm case, 1.0 m total length and no armor.
Can the armor on 330851-02-000-080-90-01-05 be omitted during replacement?
No direct equivalence should be assumed. The 01 field is part of the ordered construction and should match the installed routing and protection requirement.
What mounting thread applies to 330851-02-000-080-90-01-05?
The 02 case-type code specifies an M30 × 2 threaded case with zero unthreaded length in this execution.
How should the 9.0 m identity of 330851-02-000-080-90-01-05 be verified?
Compare the complete probe label and the documented companion transducer-chain length; do not infer length from a neighboring 330851 suffix.
What commissioning evidence is appropriate for 330851-02-000-080-90-01-05?
Retain mounting depth, cable-route and armor checks, initial gap, static output, polarity, calibrated movement response and protection-channel test results.
