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Bently Nevada 176449-02 3500/42M Proximitor/Seismic Monitor Module
Bently Nevada 176449-02 3500/42M Proximitor/Seismic Monitor Module. Brand New. Original Stock. Global Shipping.
Description
The Bently Nevada 176449-02, also cataloged as the 3500/42M Proximitor/Seismic Monitor Module, operates as a dedicated hardware component for continuous vibration measurement and machine protection within 3500 Machinery Protection System platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 176449-02 |
| Brand | Bently Nevada |
| Origin | United States |
| Weight | 0.91 kg |
| Dimensions | 241.3 x 24.4 x 241.8 mm |
| Operating Temp | -30 to +65 deg C |
| Power Consumption | 7.7 W typical (8.5 W maximum) |
| Input Signal Channels | 4 independent programmable channels |
| Transducer Types | Proximity probes, velocity sensors, accelerometers |
| Input Impedance | 10 k ohm (Proximitor and acceleration inputs) |
| Analog Outputs | 4-20 mA or RS-485 digital communication |
| Sampling Rate | Up to 10 kHz per channel |
| Accuracy | Within plus or minus 0.33% of full-scale typical |
Eddy-Current Probe Scaling and Rotor Dynamics Integration
The four-channel architecture conditions raw analog inputs from seismic and displacement sensors simultaneously. Consequently, the internal processing unit executes precise eddy-current probe scaling across independent pairs, transforming voltage variables into absolute or relative vibration parameters. This digital conversion sequence supports continuous gap voltage validation (-10 VDC targets) to diagnose active transducer health. Furthermore, the integrated circuitry enforces high-attenuation cross-talk suppression between adjacent slots, preventing high-frequency seismic signal noise from leaking into low-frequency shaft relative rotor dynamics channels.
Frequently Asked Questions
Q: Can channels 1 and 2 perform different processing functions than channels 3 and 4 within the same module?
A: Yes, the 176449-02 internal configuration permits independent channel pair programming. Technicians can designate one channel pair for proximity displacement monitoring while assigning the remaining pair to seismic casing velocity measurements.
Q: How does the 176449-02 execute alert and danger setpoint checking?
A: The module onboard processor continuously evaluates digitized static values against user-programmed limits. It checks alert thresholds for all active static parameters, while enabling danger trip setpoint evaluation for any two designated static values per channel.
Field Installation Guidelines
- Chassis Slot Mounting: Slide the module into any full-height front slot of the 3500/05 rack assembly, excluding Position 1 and Position 2.
- Rear I/O Matching: Ensure the matching rear I/O module occupies the exact same slot position directly behind the front-facing 176449-02 processor card before connecting field cables.
- Shield Line Isolation: Terminate the transducer braided shields solely at the designated chassis grounding strip. Never ground the shield at the machine casing end to eliminate potential measurement deviations from ground loops.
- Retention Screw Torque: Tighten both the upper and lower faceplate captive screws to 0.68 N-m to verify electrical chassis ground continuity and prevent vibration-induced loosening.
Additional information
| Weight | 0.91 kg |
|---|---|
| Dimensions | 320 × 80 × 50 mm |
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