Product Short Description
128240-01 is an original industrial dedicated signal acquisition and processing module manufactured by Bently Nevada (Baker Hughes USA). It belongs to the core field I/O components of the 3500 Series Machinery Protection & Condition Monitoring System, and exclusively matches the 3500/42M multi-parameter seismic & proximitor monitor.This module adopts external terminal wiring design, simultaneously receives non-contact eddy current proximity displacement signals, casing velocity vibration signals and acceleration signals from field sensors.
Description
Basic Identification Parameters
- Brand: Bently Nevada
- Part Number: 128240-01
- System Matching Model: 3500/42M Proximitor/Seismic Monitor
- Product Type: 4-Channel Analog I/O Module with External Terminations
- Origin: United States
- Product Weight: 0.20 kg
- Factory Warranty Period: 12 months original factory warranty
- Overall Dimensions: 241.3 mm × 24.4 mm × 99.1 mm
- Mounting Mode: Standard 19-inch EIA industrial rack plug-in installation, installed in rear dedicated slots of 3500 system rack
- Protection Grade: IP20
- Certifications: CE, UL, CSA, ATEX/IECEx Hazardous Area Certification, API 670 Compliant
Electrical Specifications
- System Power Supply: 18–36 V DC, supplied by 3500 main rack power supply
- Total Power Consumption: 7.7 W typical
- Input Channel Quantity: 4 independent fully isolated analog input channels
- Supported Sensor Types: Eddy current proximity probes, Velomitor velocity seismic sensors, acceleration sensors
- Input Impedance: 10 kΩ for proximitor & acceleration inputs
- Signal Isolation Level: 2500 Vrms channel-to-channel and channel-to-system bus isolation
- Output Signal: Internal ±10 V DC analog signal transmitted to monitor processing unit
- Measurement Accuracy: ±1.0% Full Scale
- Nominal Proximitor Sensitivity: 3.94 mV/μm (100 mV/mil)
- External Wiring Mode: Independent external pluggable green screw termination blocks
- Response Time: ≤1 ms
Measurement & Frequency Specifications
- Vibration Frequency Response Range: 2 Hz – 2000 Hz
- Proximity Displacement Linear Range: 0.25 mm – 1.65 mm
- Velocity Measurement Range: 0 – 152 mm/s peak
- Compatible Probe System: Bently Nevada 3300 XL / 3300 NSv series proximity probes & extension cables
- Configurable Monitoring Parameters: Radial vibration, thrust axial position, differential expansion, shaft eccentricity, casing velocity, casing acceleration, shaft absolute vibration, REBAM monitoring
Environmental Specifications
- Operating Temperature Range: -40 ℃ to +85 ℃
- Storage Temperature Range: -40 ℃ to +85 ℃
- Operating Humidity: 0%–95% RH, non-condensing
- Shock Resistance: 15 g peak anti-vibration performance
- Electromagnetic Compatibility: Fully meets industrial EMC anti-interference standards, adapts to high EMI industrial sites
Core Functional Features
- 4 Independent Isolated Multi-Sensor Input Channels
Four fully isolated channels support paired configuration; channel 1&2 and channel 3&4 can be set to different monitoring functions simultaneously, realizing synchronous acquisition of shaft relative vibration and casing absolute vibration.
- External Termination Wiring Design
Adopts independent external terminal blocks, convenient for field wiring, inspection and maintenance, and easy to separate module body from field cables.
- Full Parameter Programmable Monitoring Function
Supports configuration of radial vibration, thrust position, differential expansion, eccentricity, velocity, acceleration and other parameters via official 3500 rack configuration software.
- High-Precision Signal Conditioning Circuit
Built-in professional filtering, amplification and linearization circuits, effectively suppress noise interference and ensure stable and accurate signal output.
- Complete Electrical Isolation Architecture
Channel-to-channel, channel-to-system full isolation design, completely eliminate ground loop interference, common-mode noise and surge impact.
- Programmable Alarm & Danger Setpoints
Supports independent alert setpoint configuration for all measured parameters and danger trip setpoint configuration for two key parameters, realizing automatic machinery protection interlock.
- Plug-in Hot-Swap Structure
Supports online plug and replacement without powering down the entire monitoring system, greatly reduces maintenance downtime.
- Self-Diagnosis & Fail-Safe Protection Logic
Built-in channel fault detection circuit, automatically detects sensor disconnection, signal loss and module fault; enters safe state immediately under abnormal conditions to avoid false alarms and misoperations.
Applicable Application Scenarios
- Power generation industry: Steam turbines, gas turbines, turbo-generator units, combined cycle power plants
- Petroleum & petrochemical industry: Centrifugal compressors, process pumps, fans, offshore platform rotating machinery
- Chemical industry: Large high-speed compressors, reciprocating machinery, high-speed gearboxes
- Metallurgy, cement & mining industry: Rotary kilns, grinding mills, large fans, heavy rotating equipment
- Water conservancy & wastewater treatment: Large vertical pumps, circulating water pump units
- Marine industry: Ship propulsion machinery and auxiliary rotating power equipment
- Hazardous area industrial sites with ATEX/IECEx certification requirements
- OEM machinery manufacturing and industrial predictive maintenance condition monitoring systems
System Compatibility
- Fully compatible with Bently Nevada 3500 series full monitoring system: 3500/05 rack, 3500/15 power supply, 3500/20 system interface module, 3500/42M monitor module
- Perfectly matches Bently Nevada 3300 XL / 3300 NSv proximity probes, 33050 series Velomitor velocity sensors and acceleration sensors
- Seamlessly connects to System 1 diagnostic analysis platform, PLC, DCS and SCADA control systems
- Compatible with official 3500 rack configuration software V3.3 and above versions
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