Bently Nevada 3500/42M 176449-02 Proximitor Seismic Monitor
A four-channel front monitor for proximity and seismic transducer measurements in a 3500 machinery-protection rack.
Product Profile
3500/42M 176449-02 is the front Proximitor Seismic Monitor used to condition machinery signals and compare them with configured alarm thresholds. The fitted rear I/O module determines the available sensor and termination arrangement.
Channels are configured in pairs, allowing the monitor to serve selected displacement, position, velocity or acceleration functions within one rack slot.
Technical Data
| Manufacturer | Bently Nevada, a Baker Hughes business |
|---|---|
| Complete Identification | 3500/42M 176449-02 |
| Product Family | 3500 Machinery Protection System |
| Module Type | Proximitor Seismic Monitor |
| Channel Capacity | Four channels |
| Channel Programming | Configured in channel pairs |
| Measurement Capacity | Up to two functions per channel pair |
| Typical Power Consumption | 7.7 W |
| Installation Position | One full-height front rack slot |
System Role
- Signal conditioning for compatible proximity and seismic transducer chains.
- Programmable alert and danger processing for machinery protection.
- Paired-channel architecture for a documented mix of measurement functions.
- Front buffered outputs for service measurements and diagnostics.
Compatibility
- Use with a supported 3500 rack, matching rear I/O and approved transducer chains.
- Internal, external and barrier I/O versions are not interchangeable without wiring and system review.
- Preserve channel pairing when recreating the monitor configuration.
Applications
- Radial vibration, thrust position, eccentricity and differential-expansion monitoring with compatible proximity systems.
- Velocity or acceleration monitoring when the selected rear I/O and sensors support the intended function.
- Maintenance replacement in a configured 3500 rack with preserved alarm and communication records.
FAQ
Does 3500/42M 176449-02 include the rear I/O module?
The front monitor and rear I/O are separately identified; confirm both parts for a complete replacement plan.
How should channels be recreated on 3500/42M 176449-02?
Restore the documented channel pairs, measurement functions, scaling, alarms and delay logic from the approved backup.
Can 3500/42M 176449-02 accept any proximity or seismic sensor?
No. Sensor electronics, rear I/O, cable system and programmed function must be compatible.
What software check is required before installing 3500/42M 176449-02?
Confirm rack firmware and configuration-software support for the installed system revision.
Can internal I/O be exchanged for external I/O behind 3500/42M 176449-02?
Only after the rear wiring, termination blocks, cables and hazardous-area requirements are redesigned.
What final tests are needed for 3500/42M 176449-02?
Verify channel status, signal scaling, alarm thresholds, relays, recorder paths and rack communication.
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