The module occupies a defined rack position and exchanges conditioned channel data, status and alarm logic with the installed 3300 system interfaces.
Operates as a plug-in module in the 3300 rack.
Processes the configured machine-monitoring input.
Provides channel status and alarm logic.
Requires restoration of the original rack and field-interface configuration.
Use 3300/21 only in the specified monitoring chain and verify the complete signal path after controlled replacement.
Important Notice: Capture the installed 3300/21 interfaces and configuration before removal, then prove the monitored value, status and alarm path after installation.
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.
Legacy rack maintenance
Restores a specified 3300 monitor position.
Continuous protection
Maintains online machine-condition supervision.
Alarm path renewal
Restores Alert and Danger processing.
Signal troubleshooting
Supports front-panel and buffered-output checks.
Before installing Bently Nevada 3300/21, confirm the specified system, interfaces and controlled configuration.
1
Confirm the complete 3300/21 marking and the specified legacy 3300 monitoring module position.
2
Place the affected machine protection channel in the approved maintenance state.
3
Capture the installed system family, module format and primary role 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 3300/21 interfaces and configuration before removal, then prove the monitored value, status and alarm path after installation.