Bently 3500 25SIL2-01-01-CN
Bently 3500 25SIL2-01-01-CN - Image 2

Bently 3500 25SIL2-01-01-CN

Product Introduction
The 3500/25 Keyphasor Module is a fundamental component of the Bently Nevada 3500 Machinery Protection System, designed to accept inputs from proximity probes or magnetic sensors to determine shaft speed and phase angle. The “SIL2” designation indicates this specific module has been independently certified by TÜV to meet Safety Integrity Level 2 standards, making it suitable for critical safety applications. The “-CN” suffix confirms it is manufactured and certified to comply with Chinese national regulatory standards.

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Description

Bently 3500 25SIL2-01-01-CN

Technical Specifications

  • Module Type: Keyphasor Module
  • Safety Certification: SIL 2 (TÜV Certified)
  • Regulatory Approval: CN (China National Standards)
  • Channels: Dual-channel design
  • Slot Requirement: Any available monitor slot

Functional Features

  • Safety Integrity: Engineered to provide highly reliable speed and phase detection for safety-critical machinery protection.
  • Dual Input Support: Accepts signals from both eddy current proximity probes and magnetic sensors.
  • System Synchronization: Generates a precise Keyphasor signal distributed via the backplane to synchronize vibration vectors and phase-related measurements across the entire 3500 rack.

Application Scenarios
Deployed in critical rotating equipment such as large steam turbines, gas turbines, and compressors where SIL 2 compliance is mandated by safety regulations and local Chinese industrial standards.

Performance Parameters

  • Operating Temperature: -30°C to +65°C
  • Storage Temperature: -40°C to +85°C
  • Humidity: 95% non-condensing
  • Input Signal Range: +10.0 V to -24.0 V

Material Composition
Constructed with high-reliability, safety-rated electronic components and a conformal-coated PCB to withstand harsh industrial environments.

Structural Characteristics
Full-height module featuring front-panel LED indicators for operational status, signal presence, and fault diagnostics.

Working Principle
Processes raw sensor pulses to calculate rotational speed and generate a precise once-per-revolution timing pulse. This pulse is synchronized across the rack to enable accurate phase-angle vibration measurements.

Installation Requirements
Must be installed in an available monitor slot within the 3500 rack. Requires proper grounding and shielded sensor cabling.

Usage Notes
Ensure the 3500 Rack Configuration Software is set to recognize the SIL 2 variant. Do not substitute a non-SIL module in a safety-critical application requiring SIL 2 compliance.

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