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Technical specifications for 88843-04
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Manufacturer:Bently Nevada
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Product Category:Machinery Monitoring Systems
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Spare Part Number:88843-04
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Estimated shipping dimensions:12.0×10.0×4.0cm
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Weight:0.3 kg
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Tariff Code:8537101190
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Counliy of origin:USA
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System family:3300 monitoring system
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Relay arrangement:Dual hermetic relays
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Barrier arrangement:Internal barriers
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Channel count:Two independent relay channels
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Output function:Alarm or trip contact switching
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Contact verification:Continuity and isolation
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Installation rule:Monitor option and rear-interface match
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Acceptance method:Dual relay-path functional test
Information
Overview
Manuals
Common Applications
Product Precautions
Two independent sealed relay channels translate monitor logic into isolated field-contact functions while retaining the internal-barrier arrangement.
- Provides two sealed relay channels.
- Includes internal barrier circuitry for the specified monitor option.
- Converts monitor alarm logic into field-contact action.
- Requires channel-by-channel proof testing after installation.
Use 88843-04 only in the specified monitoring chain and verify the complete signal path after controlled replacement.
Important Notice: Capture the installed 88843-04 interfaces and configuration before removal, then prove the monitored value, status and alarm path after installation.
Bently Nevada 88843-04 Manuals & Downloads
Bently Nevada 88843-04 Technical Reference (PDF)Bently Nevada 88843-04 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.
Alarm annunciation
Switches remote alarm circuits.
Shutdown interface
Provides relay contacts for a controlled trip path.
Legacy monitor repair
Restores the specified relay option.
Channel proof testing
Verifies each independent contact path.
Before installing Bently Nevada 88843-04, confirm the specified system, interfaces and controlled configuration.
1
Confirm the complete 88843-04 marking and the specified dual hermetic relay module with internal barriers position.
2
Place the affected machine protection channel in the approved maintenance state.
3
Capture the installed system family, relay arrangement and barrier arrangement 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 88843-04 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 system family does Bently Nevada 88843-04 belong to?Bently Nevada 88843-04 belongs to the 3300 monitoring system family.
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What is the relay arrangement of Bently Nevada 88843-04?The relay arrangement is Dual hermetic relays.
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What is the barrier arrangement of Bently Nevada 88843-04?The barrier arrangement is Internal barriers.
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How is the channel count configured on Bently Nevada 88843-04?The channel count is Two independent relay channels.
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What is the output function of Bently Nevada 88843-04?The output function is Alarm or trip contact switching.
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Which test completes the contact verification for Bently Nevada 88843-04?Perform Continuity and isolation.
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What installation rule applies to Bently Nevada 88843-04?The installation rule is Monitor option and rear-interface match.
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Which test completes the acceptance method for Bently Nevada 88843-04?Perform Dual relay-path functional test.
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