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Technical specifications for 330750-40
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Manufacturer:Bently Nevada
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Product Category:Machinery Monitoring Systems
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Spare Part Number:330750-40
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Estimated shipping dimensions:34×23×4cm
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Weight:0.7 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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Sensor family:330750 High-Temperature Velomitor
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Integral cable length:4 m
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Sensitivity:5.7 mV/mm/s (145 mV/in/s)
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Broadband response:15 to 2000 Hz
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Precision response:20 to 1000 Hz
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Sensing-head environment:High-temperature machine surface
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Electronics location:Remote from the hot sensing point
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Maximum field cable:305 m to compatible monitoring equipment
Information
Overview
Manuals
Common Applications
Product Precautions
Its separated sensing head and electronics arrangement supports velocity measurement where the machine surface is hotter than standard sensor electronics can tolerate.
- Separates the sensing head from its electronic conditioning section.
- Uses a four-metre integral high-temperature cable.
- Produces a velocity-proportional output for casing vibration.
- Supports long field-cable runs to compatible monitoring equipment.
Use 330750-40 only in the specified monitoring chain and verify the complete signal path after controlled replacement.
Important Notice: Capture the installed 330750-40 interfaces and configuration before removal, then prove the monitored value, status and alarm path after installation.
Bently Nevada 330750-40 Manuals & Downloads
Bently Nevada 330750-40 Technical Reference Excerpt (PDF)Bently Nevada 330750-40 Installation & Commissioning Guide (PDF)The first PDF covers the product function, system role and technical selection. The installation guide covers identification, connection checks, commissioning and the acceptance test results.
Gas turbine casing
Measures velocity on high-temperature housings.
Steam turbine bearing housing
Monitors casing vibration near hot surfaces.
Exhaust equipment
Places electronics away from elevated temperatures.
Machine protection retrofit
Restores a specified high-temperature velocity channel.
Before installing Bently Nevada 330750-40, confirm the specified system, interfaces and controlled configuration.
1
Confirm the complete 330750-40 marking and the specified high-temperature velomitor sensor system position.
2
Place the affected machine protection channel in the approved maintenance state.
3
Capture the installed sensor family, integral cable length and sensitivity before removal.
4
De-energize the associated monitor, sensor supply or field circuit as the procedure requires.
5
Label every connector, conductor and shield before separation.
6
Inspect mating contacts, mounting hardware and cable condition before installation.
7
Restore the retained configuration and verify signal polarity and proportional response.
8
Function-test the complete alarm, indication and shutdown path before returning the machine to service.
Technical notes
Capture the installed 330750-40 interfaces and configuration before removal, then prove the monitored value, status and alarm path after installation.
FAQ View All FAQ
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Which sensor family does Bently Nevada 330750-40 belong to?Bently Nevada 330750-40 belongs to the 330750 High-Temperature Velomitor family.
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What is the integral cable length of Bently Nevada 330750-40?The integral cable length is 4 m.
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What is the sensitivity of Bently Nevada 330750-40?The sensitivity is 5.7 mV/mm/s (145 mV/in/s).
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What is the broadband response of Bently Nevada 330750-40?The broadband response is 15 to 2000 Hz.
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What is the precision response of Bently Nevada 330750-40?The precision response is 20 to 1000 Hz.
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What sensing-head environment applies to Bently Nevada 330750-40?The sensing-head environment is High-temperature machine surface.
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Where is the electronics location for Bently Nevada 330750-40?The electronics location is Remote from the hot sensing point.
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What maximum field cable applies to Bently Nevada 330750-40?The maximum field cable is 305 m to compatible monitoring equipment.
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