Bently Nevada 350070-01-01

Description

Basic Identification Parameters

• Brand: Bently Nevada (Baker Hughes Group)
• System Model: 3500/70 Overspeed Monitor
• Exact Hardware Part Number: 350070-01-01
• Product Category: Full-Height Dual Redundant Keyphasor Speed Measurement & Overspeed Safety Protection Monitor Module
• Origin: United States
• Standard Warranty: 12 months original factory warranty
• Version Feature: Upgraded revised version, enhanced self-diagnosis & safety logic compared with 350070-01-00
• Installation Method: Standard plug-in insertion into dedicated full-height slots of 3500 monitoring rack backplane
• Module Structure: Standard full-height modular design
• System Compatibility: Full backward compatibility with 3500 series I/O modules, barrier modules, power modules, failsafe relay modules and communication modules

Power Supply Specifications

• Operating Power Supply: Powered by internal 3500 system backplane 24 VDC
• Operating Voltage Range: 18–36 VDC
• Typical Power Consumption: 5.7 W
• Maximum Power Consumption: 6.4 W
• Built-in protection: Overvoltage, overcurrent, reverse polarity, surge and under-voltage protection circuits

Measurement & Performance Specifications

• Supported Input Signal: Redundant Keyphasor square wave pulse signals from dedicated speed proximity probes
• Independent Redundant Measurement Channels: 2 fully isolated independent speed measurement channels
• Speed Measurement Range: 0 – 20,000 RPM
• Speed Measurement Resolution: 0.1 RPM
• Phase Measurement Accuracy: ±0.5° electrical angle
• Overspeed Shutdown Response Action Time: ≤12 ms (improved faster than old version)
• Speed Data Update Rate: 8 ms typical refresh cycle
• Monitored Parameters: Real-time speed, acceleration rate, deceleration rate, speed trend, phase reference status, pulse signal quality
• Channel Mutual Isolation Voltage: 250 VAC full galvanic isolation between dual redundant channels

Alarm & Output Specifications

• Dual-Level Independent Alarm: Configurable Warning Overspeed Alarm + Danger Overspeed Emergency Shutdown Alarm for each redundant channel
• Safety Voting Logic: Configurable 1-out-of-2 (1oo2) / 2-out-of-2 (2oo2) redundant safety voting logic for overspeed shutdown
• Analog Output: Independent 4–20 mA DC industrial current loop speed analog output per channel
• Interlock Output: Dedicated connection to 3500/33 failsafe relay modules for emergency shutdown interlock
• Internal Backplane Communication: High-speed proprietary digital communication with 3500 system main control backplane
• Front Panel Configuration: Digital speed display, channel running LED, overspeed warning indicator, overspeed danger shutdown indicator, module fault diagnostic indicator

Mechanical & Environmental Specifications

• Enclosure Protection Grade: IP20 (rack internal protection)
• Housing Material: Industrial metal shielding shell + high-temperature resistant flame-retardant circuit board
• Overall Dimensions: 241 mm × 24.4 mm × 242 mm (standard 3500 full-height size)
• Product Weight: 0.70 kg
• Operating Temperature Range: -40°C to +85°C
• Storage Temperature Range: -55°C to +105°C
• Operating Humidity: 0–95% RH, non-condensing
• Anti-vibration Performance: 15 g RMS, 10–2000 Hz
• Electromagnetic Compatibility: Compliant with EN 61000-6-2, EN 61000-6-3 industrial EMC standards

Certifications & Compliance

• Industry Standard Compliance: API 670 Machinery Protection Standard
• Safety Certifications: CE Certified
• Full compliance with original 3500 system factory installation and overspeed protection acceptance specifications
• Full backward replacement compatibility with legacy 350070-01-00 modules

Core Functional Features

1. Upgraded Dual Redundant Fully Isolated Measurement Architecture

   Two independent fully isolated Keyphasor signal processing channels, eliminates single-point failure risk; improved signal filtering and pulse identification logic compared with old 350070-01-00 version.

2. Ultra-Fast High-Speed Overspeed Response

   ≤12 ms faster overspeed shutdown response time, quickly triggers emergency shutdown to prevent rotor burst damage under overspeed fault conditions.

3. High-Precision Wide-Range Speed Detection

   0–20000 RPM wide speed range, 0.1 RPM high resolution, accurately monitors full operating stages including startup, rated operation and overspeed dynamic changes.

4. Flexible Configurable Safety Voting Logic

   Supports programmable 1oo2/2oo2 redundant safety voting logic via 3500 configuration software, optimizes anti-misoperation and protection reliability balance.

5. Comprehensive Speed State Monitoring

   Simultaneously monitors real-time speed, acceleration, deceleration, speed trend, phase reference and pulse signal quality, fully covers full-cycle operating monitoring requirements.

6. Enhanced Fault Self-Diagnosis Function

   Upgraded diagnostic logic automatically detects probe disconnection, cable damage, pulse distortion, channel abnormality and module internal faults, outputs safe defeat state and completely avoids false overspeed shutdown.

7. Dual-Level Graded Overspeed Protection

   Independent configurable warning alarm threshold and danger emergency shutdown threshold for each channel, realizes early warning and final safety interlock protection.

8. Real-Time Visual Status Indication

   Front-panel digital speed display, running status, warning alarm, danger shutdown and fault diagnostic indicators, intuitively reflects on-site speed and protection status.

9. Perfect 3500 System Seamless Integration

   Standard full-height plug-in structure, fully backward compatible with original 3500 system backplane logic, barrier modules, failsafe relay modules and upper monitoring platforms.

10. Harsh Environment Adaptability

    Metal shielding shell, wide temperature resistance, strong anti-electromagnetic interference and anti-vibration performance, supports long-term unattended stable operation in industrial sites.

Main Application Scenarios

1. Thermal Power Generation Industry

   Dual redundant overspeed safety protection monitoring modules for steam turbines, gas turbines and generator rotors of 3500 TSI machinery protection systems.

2. Oil & Natural Gas Industry

   Upgraded overspeed protection units for offshore platform high-speed centrifugal compressors, gas turbines, gas transmission station rotating machinery speed monitoring systems.

3. Petrochemical & Chemical Industry

   Speed measurement and overspeed safety interlock protection for high-speed centrifugal compressors, reciprocating compressors, high-speed pump units and reaction kettle drive rotating machinery.

4. Heavy Metallurgy & Energy Industry

   Overspeed protection monitoring for large rolling mill main shafts, high-speed centrifuges and heavy-duty industrial motor rotor speed safety systems.

5. Water Conservancy & Municipal Industry

   Speed monitoring and overspeed protection modules for large hydraulic turbine units and high-speed circulating water pump stations.

6. System Maintenance & Retrofit Projects

   Direct drop-in replacement upgrade of legacy 350070-01-00 overspeed monitor modules, realizing seamless continuation and performance improvement of original machinery overspeed safety protection functions.