Product Short Description
140471-01 is an original industrial dedicated vibration monitoring monitor manufactured by Bently Nevada (Baker Hughes USA). It belongs to the core monitoring components of the 3500 Series Machinery Protection & Condition Monitoring System.
This module is the official 3500/72 main monitor unit, specially designed for simultaneous measurement of shaft relative vibration (proximitor eddy current probe) and casing absolute seismic vibration (Velomitor velocity/seismic sensor).
Description
Basic Identification Parameters
- Brand: Bently Nevada
- Part Number: 140471-01
- System Matching Model: 3500/72 Proximitor/Seismic Combined Monitor
- Product Type: 4-Channel Integrated Vibration Monitoring & Protection Monitor Module
- Origin: United States
- Product Weight: 0.55 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 dedicated monitor slot 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: ≤6.8 W
- Input Channel Quantity: 4 independent fully galvanic isolated analog input channels
- Supported Input Sensors: Eddy current proximity probes (3300 XL NSv), Velomitor seismic velocity sensors, ICP accelerometers
- Matching Keyphasor Input: Synchronous speed/phase signal from 3500/25 (97199-01) keyphasor module
- Isolation Level: 2500 Vrms channel-to-channel & channel-to-system bus galvanic isolation
- Output Signals:
- Internal ±10 V DC buffered diagnostic analog signal
- Independent SPDT alert alarm & danger trip relay contact outputs
- Relay Contact Rating: 5 A @ 250 VAC, 5 A @ 30 VDC
- Overall Measurement Accuracy: ±1.0% Full Scale
- Proximitor Sensitivity Matching: 7.87 mV/μm / 3.94 mV/μm configurable
- Signal Response Time: <15 ms
- Terminal Matching: Dedicated rear termination I/O module (external termination version)
Measurement & Functional Specifications
- Vibration Frequency Response Range: 2 Hz – 2000 Hz, ±3 dB tolerance
- Proximity Displacement Linear Range: 0.25 mm – 1.65 mm
- Seismic Velocity Measurement Range: 0 – 152 mm/s peak
- Supported Monitoring Parameters: Shaft radial displacement vibration, shaft eccentricity, casing absolute seismic velocity vibration, 1X/2X harmonic vibration, vibration orbit analysis
- Speed Matching Range: 1 RPM – 240,000 RPM
- Built-in Filters: Configurable high-pass / low-pass anti-interference filters
- Alarm Configuration: Independent dual-level alert & danger trip setpoints per channel
- Status Indication: Power OK, Channel OK, Alarm, Trip, Fault LED indicator lights
Environmental Specifications
- Operating Temperature Range: -40 ℃ to +70 ℃
- Storage Temperature Range: -51 ℃ 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-Channel Integrated Proximitor + Seismic Combined Monitoring
One module realizes synchronous monitoring of shaft relative vibration and casing absolute seismic vibration, completes comprehensive machinery health evaluation.
- Full Galvanic Isolation Architecture
Complete channel-to-channel and channel-to-system isolation thoroughly eliminates ground loop interference, common-mode noise and surge impact.
- Keyphasor Synchronous Vibration Analysis Function
Cooperates with 3500/25 keyphasor module to support vibration orbit analysis, 1X/2X harmonic analysis, unbalance, misalignment and rubbing fault diagnosis.
- High-Precision Signal Conditioning & Linearization
Built-in professional filtering, amplification and linearization circuits ensure stable and accurate measurement under complex operating conditions.
- Programmable Dual-Level Alarm & Trip Protection Logic
Independent alert alarm and emergency danger trip setpoints for each channel, realizes automatic machinery interlock protection.
- Complete Embedded Self-Diagnosis Function
Automatic detection of sensor disconnection, signal loss, channel fault and module internal fault; real-time uploads fault status to system host.
- Safety-Grade Failsafe Protection Logic
Automatically enters safe trip state under power failure, signal abnormal and module fault conditions to avoid machinery damage.
- Plug-in Hot-Swap Structure
Supports online plug and replacement without powering down the entire monitoring system, greatly reduces maintenance downtime.
- Buffered Diagnostic Signal Output
Reserved buffered signal outputs support oscilloscope access for on-site waveform analysis and fault troubleshooting.
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 heavy rotating machinery
- Chemical industry: Large high-speed compressors, reciprocating machinery, high-speed heavy-duty gearboxes
- Metallurgy, cement & mining industry: Rotary kilns, heavy grinding mills, large heavy-duty fans
- Water conservancy & wastewater treatment: Large vertical circulating pump units
- Marine industry: Ship propulsion machinery and auxiliary heavy rotating power equipment
- Hazardous area industrial sites with ATEX/IECEx certification requirements
- OEM heavy 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 modules, 3500/20 interface module, 3500/25 (97199-01) keyphasor module, all I/O modules and relay modules
- Perfectly matches 3300 XL NSv proximity probes, 33050 series Velomitor seismic velocity sensors and extension cables
- 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
- Fully complies with API 670 international machinery protection standard requirements






Reviews
There are no reviews yet.