Bently Nevada 128229-01 Proximitor/Seismic I/O Module
The internal-termination rear I/O module used with a 3500/42M Proximitor/Seismic Monitor.
Product Profile
128229-01 is the Proximitor/Seismic I/O Module with internal terminations for the Bently Nevada 3500/42M monitoring platform.
It is listed for use with 3500/42M monitor spare 176449-02 and supports documented Proximitor/accelerometer, Velomitor and Seismoprobe input arrangements.
Selection must follow the exact monitor, rear-I/O type and configured transducer path rather than the 3500/42M family name alone.
Technical Data
| Manufacturer | Bently Nevada |
|---|---|
| Exact model | 128229-01 |
| Product type | Proximitor/Seismic I/O Module with internal terminations |
| Host monitor | 3500/42M Proximitor/Seismic Monitor |
| Associated monitor spare | 176449-02 |
| Supported input arrangements | Proximitor/accelerometer, Velomitor or Seismoprobe configurations |
| Prox/Accel supply | 23.9 V, 45.5 mA, 1.09 W |
| Velomitor supply | 23.9 V, 45.5 mA, 1.09 W |
| Seismoprobe supply | 6.82 V, 2.75 mA, 0.02 W |
| 8-pin connector header | 00580434 |
| 8-pin header alternative | 166M2389 |
| 10-pin connector header | 00580432 |
| 10-pin header alternative | 166M2388 |
System Role
Internal terminations provide the rack rear-interface for the matched monitor.
Published supply values distinguish the supported transducer arrangements.
Dedicated connector-header references support controlled terminal maintenance.
The exact I/O number prevents confusion with other 3500/42M rear-module options.
Compatibility
- Export the rack configuration and record every channel transducer before service.
- Label field conductors and shields at the internal terminals.
- Inspect the 8-pin and 10-pin connector interfaces for contact damage.
- After exchange, verify sensor power, OK status, scaling, alarms, relays and the complete proof-test sequence.
Applications
- Rear I/O replacement for documented 3500/42M vibration channels.
- Mixed proximity and seismic monitoring where the configured transducer type is recorded.
- Internal-termination maintenance tied to 176449-02 monitor hardware.
FAQ
Can 128229-01 be used with every 3500/42M configuration?
Use it only where the exact monitor and internal-termination I/O arrangement are documented; channel sensor types and supply requirements must match.
How should a mixed channel set be recorded for 128229-01?
List each channel as Proximitor/accelerometer, Velomitor or Seismoprobe and retain its terminal, shield, scale and alarm data.
What should accompany a 128229-01 request?
Provide rack and slot, monitor and I/O labels, channel configuration, terminal photographs, connector-header needs and fault records.
Can 128229-01 replace an external-termination I/O module?
No direct substitution should be assumed because termination hardware and field wiring architecture differ.
What confirms 128229-01 is operating correctly?
Verify sensor supplies, OK states, bias values, dynamic signals, configured scaling and all alarm or protection outputs.
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