Ceramic tip
The alumina front cap carries the sensing field while resisting process conditions that would attack a standard polymer tip.
1460543300 ceramic-capped proximity probe
Bently Nevada · Machinery monitoring hardware
Bently Nevada 146054-34-20-02-05 | 3300 ceramic-capped proximity probe
A forward-mount ceramic-capped probe for high-pressure or chemically aggressive front-exposure conditions.
TipAlumina ceramic
Pressure rating34 bar
Case304 stainless steel
Product facts
Product Information
Bently Nevada 146054-34-20-02-05 is a forward-mount 3300 ceramic-capped proximity probe. The 146054 base identifies the 3/8-24 UNF version without armor; code 34 sets a 3.4 in overall case length, code 20 sets a 2.0 m total length, code 02 selects a miniature coaxial ClickLoc connector with standard cable, and code 05 selects CSA, ATEX and IECEx approvals.
At the process boundary, Bently Nevada 146054-34-20-02-05 uses a ceramic-to-metal front seal that is helium leak tested and rated for 34 bar (500 psi). The forward end is built for front exposure, while the rear of the 146054 design is not sealed and must remain outside water, ammonia, ammonium hydroxide and hydrogen sulfide exposure.
Bently Nevada 146054-34-20-02-05 connects through the matching 3300 extension cable and Proximitor Sensor. The ceramic cap changes the environmental interface at the tip; signal conversion still occurs in the matched Proximitor electronics rather than inside the passive probe case.
Verified data
Technical Data
| Technical item | 146054-34-20-02-05 |
|---|---|
| Brand | Bently Nevada |
| Product type | 3300 ceramic-capped proximity probe |
| Brand country | United States |
| Base probe designation | 146054: 3/8-24 UNF thread, without armor |
| Overall case length (Option A) | 34: 3.4 in |
| Total length (Option B) | 20: 2.0 m (6.6 ft) |
| Connector and cable (Option C) | 02: miniature coaxial ClickLoc connector, standard cable |
| Agency approval (Option D) | 05: CSA, ATEX and IECEx approvals |
| Mounting form | Forward mount |
| Tip material | Alumina ceramic |
| Case material | 304 stainless steel |
| Pressure rating | 34 bar (500 psi) |
| Front seal | Ceramic-to-metal, helium leak tested |
| Rear boundary | Not sealed |
| System components | Probe, extension cable and 3300 Proximitor Sensor |
| Default target calibration | AISI 4140 steel |
| Rear exposure restriction | Keep clear of water, NH3, NH4OH and H2S |
Front exposure
Product Features: Ceramic Barrier Construction
Bently Nevada 146054-34-20-02-05 combines the documented 3.4 in forward-mount case and 2.0 m standard cable with an alumina ceramic front barrier.
Pressure seal
The ceramic-to-metal interface is helium leak tested and rated for 34 bar at the front of the probe.
Stainless case
The 304 stainless-steel case provides the threaded mechanical body behind the ceramic sensing face.
Chemical and pressure exposure
Product Applications: Aggressive Process Monitoring
Bently Nevada 146054-34-20-02-05 is intended for machinery locations where the sensing face encounters aggressive chemicals or pressure while the unsealed rear remains outside that environment.
01
Anhydrous-ammonia machinery
The alumina ceramic cap and helium-tested ceramic-to-metal seal protect the probe front in anhydrous-ammonia and other extreme-pH process environments.
02
High-pressure sensing points
The front assembly is rated to seal 34 bar, allowing non-contact shaft or target measurement where pressure reaches the exposed sensing face.
03
Front-only corrosive exposure
Use the 146054 construction where corrosive gas or liquid reaches only the front of the case; keep water, ammonia, ammonium hydroxide and hydrogen sulfide away from the unsealed rear.
Practical selection and use
Product Questions
What configuration is encoded by Bently Nevada 146054-34-20-02-05?
Bently Nevada 146054-34-20-02-05 specifies a 3/8-24 UNF probe without armor, a 3.4 in case, 2.0 m total length, standard cable with miniature coaxial ClickLoc connector, and CSA, ATEX and IECEx approvals.
Why must the rear of Bently Nevada 146054-34-20-02-05 stay dry?
Bently Nevada 146054-34-20-02-05 does not seal the rear of the probe. Keep water and listed aggressive media away from the rear cable and connector area even when the front ceramic seal is correctly installed.
What components complete the measurement chain for Bently Nevada 146054-34-20-02-05?
Bently Nevada 146054-34-20-02-05 requires the matching 3300 extension cable and Proximitor Sensor. The passive probe develops the eddy-current response and the Proximitor converts it into the electrical output.
What target calibration should be confirmed for Bently Nevada 146054-34-20-02-05?
Use the target material associated with the matched system for Bently Nevada 146054-34-20-02-05. Standard 3300 Proximitor systems are calibrated to AISI 4140 steel unless another target calibration is specified.
How should the 3/8-24 thread on Bently Nevada 146054-34-20-02-05 be installed?
Mount Bently Nevada 146054-34-20-02-05 on its 3/8-24 UNF-2A thread without loading the ceramic tip. Apply retention and sealing at the intended mechanical interfaces, not at the sensing face.
What should be checked if Bently Nevada 146054-34-20-02-05 loses a stable gap signal?
For Bently Nevada 146054-34-20-02-05, inspect target gap, ceramic-tip condition, coaxial connection and matched Proximitor chain. Also verify that rear contamination has not reached the unsealed cable side.
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