Bently Nevada 350070-01-00 176449-09

Description

Basic Identification Parameters

• Brand: Bently Nevada (Baker Hughes Group)
• System Model: 3500/70 Overspeed Monitor
• Exact Hardware Part Number: 350070-01-00 / 176449-09
• Product Category: Full-Height Keyphasor Speed Measurement & Overspeed Safety Protection Monitor Module
• Origin: United States
• Standard Warranty: 12 months original factory warranty
• 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 compatibility with 3500 series I/O modules, barrier modules, power modules, 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: 5.5 W
• Maximum Power Consumption: 6.2 W
• Built-in protection: Overvoltage, overcurrent, reverse polarity and surge protection circuits

Measurement & Performance Specifications

• Supported Input Signal: Keyphasor square wave pulse signal from speed proximity probes
• Independent Monitoring Channels: 2 redundant 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 Response Action Time: ≤15 ms
• Speed Update Rate: 10 ms typical refresh cycle
• Supported Functions: Real-time speed measurement, overspeed alarm, overspeed shutdown, acceleration monitoring, deceleration monitoring, speed trend recording
• Channel Mutual Isolation Voltage: 250 VAC full isolation between redundant channels

Alarm & Output Specifications

• Dual-Level Configurable Alarm: Independent Warning Overspeed Alarm + Danger Overspeed Emergency Shutdown Alarm for each channel
• Redundant Voting Logic: Configurable 1-out-of-2 / 2-out-of-2 safety voting logic for overspeed shutdown protection
• Analog Output: Standard 4–20 mA DC industrial current loop speed analog output
• Interlock Output: Connects to 3500/33 failsafe relay modules for emergency shutdown interlock
• Internal Backplane Communication: High-speed digital communication with 3500 system main control backplane
• Front Panel: Speed digital display, channel status LED, overspeed warning indicator, overspeed danger shutdown 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: 0.68 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

Core Functional Features

1. Dual Redundant Independent Speed Measurement Channels

   Two fully isolated redundant Keyphasor signal processing channels, realizes high-reliability redundant speed detection, completely avoids single-point failure risk of overspeed protection system.

2. High-Precision Wide-Range Speed Detection

   0–20000 RPM ultra-wide speed range, 0.1 RPM high resolution, accurately captures low-speed startup, rated operation and high-speed overspeed dynamic changes of rotors.

3. Ultra-Fast Overspeed Shutdown Response

   ≤15 ms fast overspeed action response time, quickly triggers emergency shutdown protection when overspeed fault occurs, prevents rotor burst damage accidents.

4. Configurable Safety Voting Overspeed Logic

   Supports programmable 1oo2 / 2oo2 redundant safety voting logic through configuration software, balances protection reliability and anti-false-action performance.

5. Complete Speed State Monitoring Functions

   Simultaneously monitors real-time speed, acceleration rate, deceleration rate, speed trend and phase reference status, fully covers full operating cycle monitoring requirements of rotating machinery.

6. Dual-Level Overspeed Alarm Protection

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

7. Real-Time Visual Status Indication

   Front-panel digital speed display, running status indicator, warning overspeed indicator and danger shutdown indicator, intuitively reflects on-site rotor speed and protection status.

8. Complete Fault Self-Diagnosis Function

   Automatically detects probe disconnection, cable damage, pulse signal abnormality and channel fault status, outputs safe defeat state and avoids false overspeed shutdown actions.

9. Perfect 3500 System Seamless Integration

   Standard full-height plug-in structure, fully matches original 3500 system backplane logic, seamlessly connects with 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

   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

   Original spare replacement and upgrade of old legacy 3500/70 overspeed monitor modules (350070-01-00 / 176449-09), realizing seamless continuation of original machinery overspeed safety protection functions.