Product Core Brief
- Model: 176449-01
- Brand: Bently Nevada
- Series: 3500 Machinery Protection System
- Core Function: Monitors four channels of relative shaft vibration and position.
- Product Type: 4-Channel Proximitor Monitor Module
- Key Specs: 4 Channels | Radial/Axial/Thrust | Programmable Alarms
- Condition: New Original / New Surplus
BENTLY 3500/40M 176449-01
Product Introduction
The Bently 176449-01 acts as a four-channel Proximitor monitor for 3500 racks. This industrial automation unit accepts inputs from eddy current sensors to track critical machine health.
This replacement module processes radial vibration, axial displacement, and eccentricity parameters. It continuously compares conditioned signals against user-programmable alarm setpoints.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | 3500/40M Proximitor Monitor |
| Channel Count | 4 Independent Inputs |
| Measured Parameters | Radial Vib, Axial Disp, Eccentricity, Diff Exp |
| Sensor Compatibility | Bently Nevada Proximitor / Accelerometer |
| Operating Temp | -30°C to +65°C |
| Configuration Method | 3500 Rack Configuration Software |
| Alarm Logic | Programmable AND/OR Voting Logic |
| Product Weight | 4.2 kg |
| Primary Application | Rotating Machinery Protection |
| Compliance | API 670 / CE |
Quality Control Process
Every replacement module undergoes strict signal injection testing. We simulate eddy current probe inputs using precision RF signal generators. Output linearity must remain within ±2% tolerance. Next, we verify the internal alarm voting logic. We trigger Alert and Danger thresholds to confirm proper relay state transitions. We then inspect the backplane edge connector for bent pins. Oxidation or physical damage causes intermittent data loss. All units ship in anti-static shielding.
Replacement Pitfall Guide
❗ Verify Sensor Type Configuration. This module accepts various sensor inputs. Ensure the software configuration matches your physical wiring. Applying an accelerometer signal to a Proximitor-configured channel yields completely false readings.
❗ Set Alarm Voting Logic Carefully. Each relay output supports independent AND/OR programming. Incorrect voting logic can cause a single bad sensor to trip the entire machine. Double-check your configuration matrix.
❗ Check Backplane Slot Placement. This full-height module must be placed in valid 3500 rack slots. Improper placement prevents the system from recognizing the card during power-up.
❗ Mind the Grounding Loop. Vibration signals are highly susceptible to noise. Verify all shielded twisted-pair wiring is properly terminated. Ground loops will inject false vibration spikes into your trending data.
Keep these in mind and you’ll cut 90% of rework time.
BENTLY 3500/40M 176449-01
Compatibility Matrix & Benchmarks
| Original Model | Replacement / Successor Model | Compatibility Level | Migration Notes |
|---|---|---|---|
| 176449-01 | 176449-01 | Direct | Identical electrical specs |
| 176449-01 | 3500/42M Module | Needs Adaptation | 42M handles absolute vibration/acceleration |
| 176449-01 | 3500/45 Module | Needs Adaptation | 45M handles axial displacement/thrust only |
- Alarm Response: Continuous comparison with configurable Alert/Danger setpoints.
- Data Integration: Seamless backplane communication with 3500 system.
