The distributed monitor conditions two seismic inputs, applies configured filtering or integration, compares measurements with alarm setpoints and reports values to the host control system.
Accepts two seismic transducer inputs.
Supports velocity or acceleration measurement configurations.
Provides filtering and integration for selected measured variables.
Generates alarm status and reports values to the host control system.
Use 1701/25 only in the specified monitoring chain and verify the complete signal path after controlled replacement.
Important Notice: Capture the installed 1701/25 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.
Bearing-housing velocity
Monitors casing vibration from velocity sensors.
Acceleration monitoring
Processes accelerometer signals for protection.
Distributed machine protection
Places monitoring close to package equipment.
Control-system trending
Supplies measured parameters and status to the host.
Before installing Bently Nevada 1701/25, confirm the specified system, interfaces and controlled configuration.
1
Confirm the complete 1701/25 marking and the specified fieldmonitor seismic input monitor position.
2
Place the affected machine protection channel in the approved maintenance state.
3
Capture the installed system family, input channels and supported transducers 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 1701/25 interfaces and configuration before removal, then prove the monitored value, status and alarm path after installation.