Description
Bently Nevada 3500/42-01-00 Dual Channel Proximitor Monitor
The Bently Nevada 3500/42-01-00, also cataloged as the 3500/42-01-00 Dual Channel Proximitor Monitor, operates as a dedicated hardware interface for proximity probe signal conditioning and shaft dynamic measurement within the 3500 Machinery Protection System. It converts eddy-current probe inputs into processed vibration, position, and phase reference parameters through rack-integrated signal paths.
Hardware Specifications
| Parameter |
Specification |
| Model |
3500/42-01-00 |
| Brand |
Bently Nevada |
| Origin |
USA |
| Operating Temp |
-30 deg C to +65 deg C |
| Power Consumption |
Supplied by 3500 rack power modules |
| Module Type |
Dual Channel Proximitor Monitor |
| Channels |
2 independent channels |
| Input Types |
Proximity probes |
| Measurement Parameters |
Radial vibration, axial position, phase reference |
| Outputs |
4-20 mA per channel |
| Alarm Logic |
Alert and Danger setpoints configurable |
| Communication |
3500 rack backplane, System 1 interface |
Eddy-Current Probe Scaling and Shaft Dynamics Processing
The module conditions eddy-current proximity probe signals through calibrated gap voltage conversion. Shaft radial displacement is derived from linearized probe response characteristics referenced to configured calibration curves. Phase reference processing supports angular position alignment for rotating equipment diagnostics.
Cross-channel isolation within the monitoring architecture reduces electrical coupling effects between parallel probe inputs. Signal processing maintains stability under variable rotor dynamics conditions, ensuring consistent interpretation of shaft orbit and vibration amplitude trends.
Frequently Asked Questions (FAQ)
Q: Can each channel measure different physical parameters simultaneously?
A: Yes. Each channel operates independently and can process separate proximity probe inputs for vibration and position.
Q: Does the module support hot-swap operation?
A: Yes. The module supports hot-swapping within the 3500 rack when system redundancy conditions are satisfied.
Q: How is output scaling defined for 4-20 mA signals?
A: Output scaling is configured per channel based on probe calibration and measurement range settings.
Field Installation Guidelines
Install the module in an approved slot within the 3500 rack system. Ensure correct seating in the backplane connector to maintain signal integrity.
Verify proximity probe wiring integrity, ensuring proper shield termination at a single grounding point. Avoid routing probe cables near high-noise power conductors.
After installation, confirm LED status indicators for channel OK and alarm conditions. Validate configuration parameters through System 1 software before enabling monitoring functions.
