Bently Nevada 128240-01

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

1. 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.

2. 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.

3. 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.

4. High-Precision Signal Conditioning Circuit

   Built-in professional filtering, amplification and linearization circuits, effectively suppress noise interference and ensure stable and accurate signal output.

5. Complete Electrical Isolation Architecture

   Channel-to-channel, channel-to-system full isolation design, completely eliminate ground loop interference, common-mode noise and surge impact.

6. 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.

7. Plug-in Hot-Swap Structure

   Supports online plug and replacement without powering down the entire monitoring system, greatly reduces maintenance downtime.

8. 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