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Technical specifications for 330851-02-000-080-90-01-05
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Manufacturer:Bently Nevada
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Product Category:Machinery Monitoring Systems
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Spare Part Number:330851-02-000-080-90-01-05
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Estimated shipping dimensions:23×23×4.5cm
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Weight:0.54 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Probe family:3300 XL 25 mm
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Case type:M30 x 2 threaded
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Unthreaded length:0 mm
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Case length:80 mm
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Total length:9.0 m
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Armor:SST armor
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Approval option:Multiple approvals
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System linear range:12.7 mm / 500 mil, complete matched system
Information
Overview
Manuals
Common Applications
Product Precautions
Bently Nevada 330851-02-000-080-90-01-05 configures the extended-range 25 mm probe for differential-expansion service with an M30 x 2 case.
- Uses the M30 x 2 metric case type defined for the 25 mm probe family.
- Provides a 80 mm case with no unthreaded section.
- Carries a 9.0 m lead for the selected 25 mm system length.
- Uses sst armor and the multiple-approval execution.
The 25 mm system is used for turbine differential-expansion measurements. Probe, extension cable, Proximitor sensor, target geometry and system length must remain matched.
Important Notice: Match the entire 330851-02-000-080-90-01-05 ordering string before installation. Perform a controlled movement check and record scale, direction, gap voltage and diagnostics.
Bently Nevada 330851-02-000-080-90-01-05 Manuals & Downloads
Bently Nevada 330851-02-000-080-90-01-05 Official Technical Reference Excerpt (PDF)Bently Nevada 330851-02-000-080-90-01-05 Installation & Commissioning Guide (PDF)
The first document covers the product function, system role and technical selection. The installation guide covers identification, connection checks, commissioning and the acceptance record.
Steam-turbine differential expansion
Measures rotor-to-casing growth on medium and large turbine generators.
Turbine supervisory instrumentation
Feeds a long-range displacement signal into the TSI monitoring channel.
Large-motion position sensing
Uses the 25 mm system range where shorter-range probes are insufficient.
Commissioning movement check
Supports controlled target or probe movement to prove scale, direction and channel response.
Before installing Bently Nevada 330851-02-000-080-90-01-05, confirm the documented system, interfaces and controlled configuration.
1
Match the entire 330851-02-000-080-90-01-05 ordering string before installation.
2
Use only a matched 3300 XL 25 mm probe, extension cable and Proximitor sensor.
3
Verify the M30 x 2 mounting thread and the selected case reach.
4
Protect the large sensing face from impact and keep the target path clear through the full movement range.
5
Maintain the documented total electrical length; do not shorten or splice the probe lead.
6
Route and support the cable so it cannot pull the probe out of alignment.
7
Set the initial gap for the approved differential-expansion geometry.
8
Perform a controlled movement check and record scale, direction, gap voltage and diagnostics.
Technical notes
Match the entire 330851-02-000-080-90-01-05 ordering string before installation. Perform a controlled movement check and record scale, direction, gap voltage and diagnostics.
FAQ View All FAQ
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Which case thread is used by 330851-02-000-080-90-01-05?Case option 02 is M30 x 2.
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What case length is specified in 330851-02-000-080-90-01-05?The 080 option specifies 80 mm.
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What system-length contribution is selected by segment 90 in 330851-02-000-080-90-01-05?The 90 option specifies a 9.0 m total length.
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Is 330851-02-000-080-90-01-05 armored?Yes. Option 01 selects stainless-steel armor.
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Why is the 000 field zero on the threaded 330851-02-000-080-90-01-05 case?It specifies 0 mm unthreaded length for the threaded metric case.
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Which approval option is built into 330851-02-000-080-90-01-05?The terminal 05 selects multiple approvals.
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What receiving system is required for 330851-02-000-080-90-01-05?Use the matched 9 m 3300 XL 25 mm Proximitor system and compatible extension arrangement.
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How should the nine-metre 25 mm channel be proved after fitting 330851-02-000-080-90-01-05?Move the target or probe through a controlled interval and confirm the expected differential-expansion scale and direction.
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