Product Description
The Bently Nevada 3500/72-01-00 is a four-channel machinery protection module designed for reciprocating compressors.
This 3500 Series monitor processes input signals from proximity transducers to track piston rod behavior.
It provides continuous dynamic and static measurements to prevent catastrophic mechanical failure.
The system actively compares real-time metrics against user-programmed alarm limits to trigger emergency relays.
Engineers program the monitor channels in pairs to perform multiple monitoring functions simultaneously.
The system fully complies with API 618 industrial safety standards for critical compressor systems.
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Technical Specifications
| Technical Parameter | Specification Values |
|---|---|
| Brand and Model | Bently Nevada 3500/72-01-00 |
| Measurement Range | Configurable via 3500 Rack Configuration Software from 0 to 100 percent of full-scale. |
| Frequency Response | Peak-to-Peak and Piston Position filters operate from 1 Hz to 600 Hz. Gap filter sits at 0.09 Hz. |
| Sensitivity / Scale Factor | Supports 0.79 mV/µm (20 mV/mil), 3.94 mV/µm (100 mV/mil), and 7.87 mV/µm (200 mV/mil). |
| Linearity / Accuracy | Maintains peak-to-peak amplitude accuracy within plus or minus 0.33 percent typical and 1 percent maximum. |
| Resolution | Provides high-precision digital signal processing with full-scale alarm resolution down to 0.13 percent. |
| Temperature Range | Internal termination modules operate from -30°C to +65°C (-22°F to +149°F). |
| Environmental Tolerance | Withstands up to 95 percent non-condensing relative humidity during continuous field operations. |
| Anti-Interference Ability | Features a 10 kΩ input impedance and Constant Q filters with 57.7 dB stopband rejection. |
| Power Consumption | Consumes 7.7 Watts of nominal electrical power inside the rack. |
Machinery Diagnostics & Application
The Bently Nevada 3500/72-01-00 delivers comprehensive diagnostic datasets directly to plant operators.
It acts as a dedicated Recip Rod Position Monitor to track essential structural health metrics.
Typical application environments include heavy industrial hyper-compressors and high-pressure chemical process gas systems.
The device isolates key mechanical variables including position magnitude, position angle, and crank angle.
It also captures 1X, 2X, and Not 1X vector amplitudes for advanced vibration troubleshooting.
Instantaneous probe gap tracking alerts technicians to rapid mechanical wear inside the cylinder.
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Installation & Rack Space Requirements
The main monitor board requires one full-height front slot in standard 3500 racks.
The accompanying I/O module occupies one full-height rear slot directly behind the main monitor.
This specific unit features an I/O module configuration designed with internal terminations.
Always disconnect system power before inserting or removing modules from the backplane.
Debugging, Status Indicators & Maintenance
The front display panel provides three distinct LEDs for instant hardware status verification.
The OK LED illuminates when the internal circuitry functions within proper tolerances.
The TX/RX LED flashes to indicate active digital communication across the rack network.
The Bypass LED warns personnel when the channel protection loops are inactive.
Front-mounted coaxial connectors deliver short-circuit protected buffered transducer signals for external diagnostic instruments.
Compatibility & Certifications
The system integrates seamlessly with standard 3500 Rack Configuration Software utilities.
This hardware option contains no hazardous area approvals for standard, non-classified environments.
The system fully maintains compatibility with industry-standard proximity probes and transducer power supplies.
Shipping, Packaging List & Warranty
- Each package includes one factory-tested monitor module main board.
- The shipment contains one matching internal termination rear I/O module block.
- We provide secure international express shipping through trusted carriers like FedEx, UPS, and DHL.
- This product carries a comprehensive 12-month warranty against component defects.
Frequently Asked Questions (FAQ)
Can this module be used in hazardous environments?
No, this specific model option features no hazardous area approvals.
What happens if both transducers fail on a hyper-compressor?
The monitor triggers an immediate Danger alarm to protect the machinery asset.
Is the timed OK channel defeat available here?
No, the system disables the OK channel defeat for all rod position configurations.
Technical Documentation Access
Get immediate access to product manuals and installation guides:
- Review system wiring diagrams before initial mounting.
- Download the comprehensive configuration manual to set alarm steps.
- Access the compliance certificates for engineering documentation records.
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