330130-040-01-00 Bently Nevada

330130-040-01-00   Bently Nevada Basis unit

Product  Description：

The Bently Nevada System 3500 Main Chassis, commonly referred to as the Basis Unit or System Rack, forms the foundational hardware platform for high-reliability machinery protection and condition monitoring. Engineered to house the complete family of 3500 series monitor modules, power supplies, and communication interfaces, the Basis Unit provides a centralized, backplane-driven infrastructure designed to continuously monitor critical industrial turbomachinery, pumps, compressors, and generators.

By establishing a robust electrical and mechanical framework, the Basis Unit facilitates high-speed digital communication, power distribution, and alarm relay routing across all installed modules. It provides continuous, real-time vibration, position, speed, and temperature monitoring, playing an indispensable role in preventing catastrophic machinery failure, protecting plant personnel, and optimizing predictive maintenance strategies in heavy process industries.

Product Parameters

• Chassis Configurations: 19-inch EIA Rack Mount (full size with 14 available monitor slots), Panel Mount, or Bulkhead Mount variants.

• Slot Capacity: 14 full-length slots dedicated to signal monitoring and communication modules, plus 2 dedicated slots for redundant power supplies and 1 dedicated slot for the System Rack Interface (RMI) module.

• Backplane Architecture: High-speed digital bus supporting multi-channel data acquisition, internal alarm logic routing, and inter-module communications.

• Operating Temperature: -30°C to +65°C (-22°F to +149°F).

• Storage Temperature: -40°C to +85°C (-40°F to +185°F).

• Humidity Tolerance: 5% to 95% non-condensing relative humidity.

• Power Supply Support: Single or dual-redundant AC or DC power supply modules with auto-switching capabilities.

• Input Voltage Options: High-Voltage AC (85V to 264V AC), Low-Voltage AC (20V to 30V AC), High-Voltage DC (88V to 140V DC), or Low-Voltage DC (18V to 36V DC).

• Compliance Standards: API 670 machinery protection compliant, CE marked, CSA/NRTL certified for class 1 division 2 hazardous location operations, and ATEX/IECEx approved.

Product Advantages

• Full API 670 Compliance: Fully complies with American Petroleum Institute standard 670 for machinery protection systems, ensuring the highest standard of safety and operational integrity.

• High Modularity and Scalability: Flexible slot architecture allows customization with a wide range of input cards including proximity transducers, seismic sensors, RTDs, thermocouples, and keyphasors.

• Fault-Tolerant Redundancy: Supports dual-redundant power supplies and redundant communication buses to prevent false trips and ensure uninterrupted monitoring even during component failures.

• Advanced Diagnostics and Connectivity: Features direct integration with Bently Nevada System 1 software for comprehensive asset health management, advanced spectral diagnostics, and trend analysis.

• Hot-Swappable Module Design: Allows modules to be removed and inserted while the system is energized without disrupting active protection channels on adjacent modules.

Important Precautions

• Proper Grounding Requirement: A dedicated, low-impedance earth ground connection must be established directly to the rack frame to prevent ground loops and shield against electromagnetic interference.

• Power Supply Matching: Ensure input supply voltage matches the installed power module specifications prior to energizing the chassis to prevent catastrophic module damage.

• Slot Cover Usage: Install blank panels over unused slots to maintain correct cabinet airflow, thermal dissipation, and internal dust shielding.

• Static Discharge Precautions: Electrostatic discharge (ESD) sensitive components require the use of grounded wrist straps when handling modules or wiring the backplane.

• Hot-Swapping Compliance: While modules are hot-swappable, field wiring connections and relay outputs should be audited to prevent unintended machine trips during card maintenance.

Product Applications

• Oil and Gas Production: Protecting critical gas turbines, multi-stage centrifugal compressors, and offshore platform turbo-generators.

• Power Generation Facilities: Continuous monitoring of steam turbines, combustion turbines, hydro-turbines, and boiler feed pumps.

• Petrochemical and Refining Plants: Condition monitoring of high-speed blowers, heavy-duty compressors, and critical reactor feed pumps.

• Mining and Heavy Industry: Safeguarding large grinding mills, induced draft fans, and large electric motor drives.

• Water and Wastewater Utilities: Monitoring large-capacity water transmission pumps and aeration blowers against excessive vibration and mechanical wear.

The structure and details of the product：

Our services：

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

Warranty: one year

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JUSTWELL PTE. LTD

Our main products include DCS control system spare parts, PLC system spare parts, and robot system spare parts. Our advantageous brands include Allen Bradley, Bently Nevada, ABB, HIMA, Reliance, Bender, National Instruments, Emerson Ovation, Honeywell, Siemens, Allen Bradley, ICS Triplex, FOXBORO, Schneider, GE Fanuc, Motorola, HIMA, Prosoft, and other imported industrial components. Our main products serve a wide range of electronic, metallurgical, chemical, and power plants Industries such as steel mills, rubber, cement, machinery and equipment, and construction.