The 330851-02-00-080-10-00-00 is a supplied Bently Nevada 3300 XL 25 mm probe identifier. Its confirmed options indicate an M30 x 2 case, 80 mm overall case, 1.0 m total length, no armor, and no approvals; however, the supplied unthreaded-length segment is 00 while the current official format requires three digits (BBB), so the exact code needs nameplate verification.
- 3300 XL 25 mm Proximity Probe
- 25 mm nominal system family
- M30 x 2 thread
- Supplied 00; current format requires three digits
In a correctly matched 5.0 m 3300 XL 25 mm system, the probe senses axial movement of a conductive collar or ramp for differential-expansion measurement on mid-size and large steam turbine generators. It can be used in single, redundant, complementary-input, or ramp-compensated arrangements described by the manufacturer. For dependable measurement, follow the official system-matching, target, mounting, cabling, environmental, and approval instructions.
Important Notice: Final 00 means no approvals in the current datasheet. The shortened supplied BBB segment remains unconfirmed and must be checked from the nameplate.
Apter Power 330851-02-00-080-10-00-00 Product Manual
Important Notice: This manual is prepared and hosted by Apter Power using manufacturer-published technical data. Confirm the physical nameplate, current manufacturer documentation, and applicable certification before installation or replacement.
Steam Turbine Differential Expansion
Measures the difference in thermal growth between the turbine rotor and casing on mid-size and large generators.
Single-Collar Measurement
One probe observes a conductive collar where the expected axial movement fits the published linear range.
Redundant Collar Measurement
Two probes can observe the same collar side when sufficient collar height is available.
Complementary Input DE
Two probes observe opposite sides of a collar to increase the measurable differential-expansion range.
Ramp Target Measurement
A probe can view a rotor ramp while a second probe compensates for radial movement at another location.
Turbine Upgrade Projects
The 25 mm family can replace earlier 7200 25 mm, 7200 35 mm, and 25 mm DE Integral systems when all three transducer components are replaced.
Read and follow the official 3300 XL 25 mm Proximity Transducer System datasheet and applicable installation instructions before use. Verify the complete ordering code from the physical nameplate and match all transducer components to the published system length.
1
Verify the full model from the physical nameplate, especially the shortened unthreaded-length segment.
2
Use a 4.0 m 330854 cable with a 1.0 m probe to form a 5.0 m system.
3
Replace probe, extension cable, and Proximitor Sensor together when upgrading from older 25 or 35 mm systems.
4
Align the probe perpendicular to the collar or ramp and verify movement using the official procedure and suitable bracket.
5
Do not use the no-approvals option in a hazardous area.
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