Bently Nevada 126615-01

Description

Channel & Input Specifications

• Total Independent Input Channels: 4 channels
• Input Signal Range: -10 VDC to +10 VDC analog voltage signal (from proximity proximitor)
• Supported Monitoring Functions: Radial vibration, thrust axial position, differential expansion, shaft eccentricity, REBAM monitoring
• Channel Working Mode: Configurable in channel pairs; channel 1&2 and channel 3&4 can run independent monitoring functions simultaneously
• Frequency Response Bandwidth: 0 Hz to 5 kHz (+0/-3 dB)
• Measurement Accuracy: ±0.5% full scale range
• Signal Isolation: Full galvanic isolation between input channels and system backplane circuits

Alarm Configuration Specifications

• Independent programmable ALERT early warning threshold for each channel static parameter
• Independent programmable DANGER shutdown interlock threshold for two active static parameters per module
• Automatic sensor fault detection: Open circuit, short circuit, signal abnormal diagnosis
• Built-in BYPASS function for maintenance debugging

Electrical System Specifications

• Power Supply: Powered by 3500 system chassis backplane power supply
• Total Power Consumption: 10.5 W
• Communication Mode: Internal backplane bus communication with 3500 main system; supports TDXnet/TDIX/DDIX protocols
• Status Indication: Independent OK, ALERT, DANGER, BYPASS LED indicators for each channel
• Mounting Slot: Dedicated slot for 3500/40M monitor mainboard

Mechanical & Physical Specifications

• Module Dimensions: 241.3 mm × 24.4 mm × 99.1 mm
• Net Weight: 0.32 kg (0.70 lbs)
• Housing Material: Industrial metal shielding shell, anti-interference and anti-corrosion
• Connection Mode: Green pluggable terminal blocks for external wiring
• Installation Mode: Standard plug-in slot mounting for 3500 system chassis
• Maintenance Feature: Hot-swappable field replaceable design

Environmental Specifications

• Operating Temperature: -30 °C to +65 °C
• Storage Temperature: -40 °C to +85 °C
• Relative Humidity: 5%–95% non-condensing
• Anti-interference Performance: Fully complies with industrial EMC electromagnetic compatibility standards
• Protection Performance: Dust-proof, moisture-proof, vibration-resistant for harsh industrial sites

Certifications & Compliance

• API 670 Machinery Protection Standard Compliance
• CE Industrial Safety Certification
• CSA Certification
• Support TMR Triple Modular Redundant System Operation

Core Functional Features

1. 4-Channel High-Density Proximitor Signal Interface

   Integrates 4 independent proximity signal input channels in single module, realizes centralized acquisition of multi-point shaft dynamic and static signals, saves chassis slot resources.
2. Multi-Function Flexible Monitoring Configuration

   Supports radial vibration, thrust position, differential expansion, eccentricity and REBAM mixed monitoring; channels can be configured in pairs to execute different monitoring tasks at the same time.
3. High-Precision Signal Conditioning & Processing

   Built-in professional filtering, amplification and linearization circuits, effectively suppress industrial noise, ensure stable and accurate proximity signal acquisition.
4. Hierarchical Independent Alarm Protection Logic

   Each channel owns separate ALERT early warning and DANGER shutdown settings, realizes graded over-limit protection and equipment interlock shutdown.
5. Complete Online Fault Diagnosis Mechanism

   Automatically identifies sensor open circuit, short circuit, wiring fault and module abnormal status, outputs visual fault indication and system alarm information.
6. Full TMR Redundant System Compatibility

   Supports triple modular redundant voting configuration, greatly improves operation reliability for key machinery protection occasions.
7. Hot-Swappable Easy Maintenance Design

   Plug-and-play terminal wiring and online replaceable module structure, greatly improves on-site maintenance and fault recovery efficiency.
8. Seamless System Integration

   Directly matches 3500/40M monitor mainboard and whole 3500 system; fully compatible with 3300 series proximity probes and proximitors.
9. API 670 Standard Compliance

   Meets international rotating machinery protection specifications, suitable for formal project acceptance and OEM factory matching applications.

Main Application Scenarios

• Power plant steam turbines, gas turbines and generator units
• Petrochemical centrifugal compressors and process compressors
• Industrial large oil pumps, water pumps and pipeline centrifugal pumps
• High-speed large industrial fans, blowers and induced draft fans
• High-voltage large induction motors and motor bearing systems
• Offshore oil & gas platform rotating production equipment
• Chemical processing large rotating machinery
• Machinery predictive maintenance and health management systems
• All industrial occasions requiring API 670 standard shaft vibration and position protection

Part Number Definition

• 126615-01: Official dedicated part number for 3500/40M 4-channel Proximitor Seismic Monitor I/O Interface Module
• Belongs to Bently Nevada 3500 series machinery protection system
• Dedicated signal interface card for proximity transducer monitoring