Description
Product Core Brief
- Model: 3500/40-03-00
- Brand: BENTLY NEVADA
- Series: 3500 Machinery Protection System
- Core Function: Monitors radial vibration, axial displacement, and differential expansion.
- Product Type: 4-Channel Proximitor Monitor
- Key Specs: 4 Channels | 176449-01 Front Panel | Proximitor Input
- Condition: New Original (New Surplus)
Product Introduction
BENTLY 3500/40-03-00 is a 4-channel monitor accepting Proximitor inputs for displacement and vibration. The 176449-01 front panel provides buffered outputs and LED status indicators for each channel.
This module processes DC gap and AC vibration signals to drive alarms. It supports configurable functions like axial displacement and differential expansion. Well, technically you can pair channels for dual-slope differential expansion, but most users just stick to standard axial displacement.
BENTLY 3500/33
Key Technical Specifications
| Parameter | Value |
|---|---|
| Module Type | 4-Channel Proximitor Monitor |
| Front Panel PWA | 176449-01 |
| Rear I/O PWA | 125680-01 |
| Input Type | Proximitor (Eddy Current) |
| Channel Count | 4 Independent Channels |
| Configurable Functions | Radial Vibration, Axial Displacement, Differential Expansion, Eccentricity |
| Buffered Output | 1 V/mm or 4 mA/mm |
| Frequency Response | 0 to 10 kHz (Vibration) |
| Typical Power | 4.5 W |
| Dimensions | 241 mm x 24.4 mm x 99.1 mm |
| Compliance | API 670, ISO 10817-1 |
Quality Control Process (Engineer’s Perspective)
- Incoming Verification: We check source traceability and verify serial numbers against anti-counterfeit databases. Visual inspection confirms no physical damage or connector corrosion.
- Live Functional Test: Power-on self-checks validate basic operation. We run continuous load tests exceeding 24 hours with temperature logging to ensure stability.
- Electrical Parameter Test: Insulation resistance is verified using a 500 V Megger, requiring >10 MΩ. Ground continuity is also strictly checked.
- Firmware Verification: We read and record internal firmware versions. DIP switch and jumper settings are photographed for future reference.
- Final QC & Packaging: The unit is sealed in an anti-static bag. A QC Passed label with the inspection date is applied before shipping.
Replacement Pitfall Guide
❗ Front Panel Revision: The 176449-01 is a specific front panel revision. Do not mix it with older 176449-00 panels, as LED indicators and buffered output scaling may differ.
❗ Channel Pairing Logic: Channels 1/2 and 3/4 are often paired for differential expansion. If replacing a single module, ensure your new unit is configured for the same paired mode as the original.
❗ Sensor System Length: Verify your Proximitor system length matches the module configuration. A 5.0 m Proximitor requires the module to be configured for 5.0 m, or you will get scaling errors.
❗ Power Supply Headroom: Calculate total rack power carefully. Each module draws 4.5 W typical; always maintain a 20% headroom margin on your 3500/15 power supply.
❗ ESD Damage: Use an anti-static mat during installation. Dry environments significantly increase electrostatic discharge risks to sensitive electronics.
Keep these in mind and you’ll cut 90% of rework time.
BENTLY 3500/33
Compatibility Matrix & Benchmarks
- 3500/40-03-00 → 3500/40-01-00 : Needs Adaptation — Different Front Panel Revision (176449-01 vs 176449-00)
- 3500/40-03-00 → 3500/42M : Incompatible — Proximitor vs. Accelerometer/Velocity Input
- 3500/40-03-00 → 3500/45 : Needs Adaptation — Displacement vs. Position (Valve, Shell Expansion)
- Scan Cycle: < 1 ms (simulated load, 4 I/O points)
- Comms Throughput: Backplane interface (Modbus TCP via 3500/22M TDI)
