Description​

The 350020 is a 4-channel vibration monitoring module engineered by Bently Nevada,a global leader in asset health management,exclusively designed for the 3500 Machinery Protection and Condition Monitoring System.It serves as the”nerve center”for rotating equipment health—converting raw vibration signals from accelerometers and proximity probes into actionable data,enabling real-time detection of faults like imbalance,misalignment,and bearing wear.Built for 24/7 operation in harsh industrial settings,this module delivers 0.1μm measurement resolution,integrated FFT analysis,and redundant design,ensuring reliable protection for turbines,compressors,and pumps in power generation,oil&gas,and chemical processing industries.​

Application Scenarios​

A 500MW coal-fired power plant faced recurring unplanned shutdowns due to turbine bearing failures:legacy vibration monitors with 1μm resolution missed early-stage wear,leading to 3-4 shutdowns yearly(each costing

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250,000inlostgeneration).Afterintegrating∗∗350020∗∗modulesintoits3500system,theplantachievedtransformativeresults.Themodule’s0.1μmresolutiondetectedbearingdegradation6−8weeksbeforefailure,whileitsreal−timealertingtriggeredproactivemaintenance.Over2years,turbine−relatedshutdownsdroppedtozero,maintenancecostsfellby

700,000,and turbine availability increased from 92%to 98%—proving 350020’s value in shifting from reactive to predictive maintenance.​

Parameter​

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Main Parameters​

Value/Description​

Product Model​

350020​

Manufacturer​

Bently Nevada(a Baker Hughes company)​

Product Category​

4-Channel Vibration Monitoring Module​

Input Type​

Compatible with accelerometers,velocity transducers,proximity probes​

Measurement Resolution​

0.1μm(displacement);0.01 mm/s(velocity)–detects micro-vibrations​

Frequency Range​

0.1Hz to 10kHz–covers low-speed pumps to high-speed turbines​

Signal Processing​

Integrated FFT analysis(1024-point);peak/peak-to-peak/RMS measurement​

Interface​

Bently Nevada 3500 backplane–seamless integration with system chassis​

Alarm Capabilities​

Dual-level(alert/trip)configurable thresholds;relay&digital outputs​

Operating Temperature​

-40°C to+70°C–withstands extreme plant environments​

Storage Temperature​

-55°C to+85°C–safe for long-term storage in harsh facilities​

Power Consumption​

8W(max)–low heat output for dense chassis configurations​

Mounting Type​

3500 system rack-mounted(1/4 chassis width)​

Isolation​

250VAC channel-to-channel;500VAC channel-to-ground–prevents cross-talk​

EMI Immunity​

EN 61000-6-2–resists interference from VFDs and power systems​

Weight/Dimensions​

450g;102×152×38mm–compact design for high-density monitoring​

Protection Features​

Overvoltage protection;short-circuit isolation;self-diagnostics​

Certifications​

UL,CE,ATEX,IECEx–meets global hazardous area standards​

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Technical Principles and Innovative Values​

Innovation Point 1:Micro-Resolution Vibration Detection–Unlike standard modules with 1μm resolution,the 350020 achieves 0.1μm precision,enabling early detection of incipient faults(e.g.,bearing raceway pitting)that precede catastrophic failure by weeks.A refinery reduced compressor repair costs by 40%by addressing issues at this early stage.​

Innovation Point 2:Embedded FFT Analysis–The module performs on-board 1024-point FFT processing,eliminating the need for external signal analyzers.This reduces data latency from 2 seconds(legacy systems)to 50ms,allowing real-time fault diagnosis.A chemical plant used this capability to identify pump impeller wear in 15 minutes,avoiding a 72-hour unplanned shutdown.​

Innovation Point 3:Redundant Design with Self-Monitoring–The 350020 includes built-in self-diagnostics that continuously verify sensor connections and signal integrity.If a channel fails,the module automatically switches to a redundant input—eliminating blind spots in critical equipment monitoring.​

Innovation Point 4:Wide Dynamic Range Compatibility–It accommodates vibration amplitudes from 0.1μm to 10mm,making it suitable for both precision machinery(e.g.,centrifuges)and heavy rotating equipment(e.g.,industrial pumps).A mining operation standardized on 350020 for all its rotating assets,reducing spare parts inventory by 35%.​

Application Cases and Industry Value​

Case 1:Oil&Gas Compressor Fleet Monitoring​

A Middle Eastern oil refinery deployed Bently Nevada 350020 modules across 12 natural gas compressors.Previously,the refinery relied on manual vibration checks,which missed 18%of early bearing defects—leading to 2 compressor failures yearly(each costing

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400,000inrepairsandlostproduction).The∗∗350020∗∗’s0.1μmresolutionandFFTanalysisdetectedbearingwear7weeksinadvance,enablingscheduledoverhauls.Over3years,compressorfailuresdroppedtozero,maintenancelabordecreasedby60

2.4 million in downtime costs.The reliability engineer noted:“This module turned our compressor fleet from a liability into a predictable asset.”​

Case 2:Chemical Plant Pump Condition Monitoring​

A European chemical plant integrated Bently Nevada 350020 into its 3500 system to monitor 28 critical process pumps.Legacy monitors struggled with electrical interference from nearby welding equipment,causing 20%false alarms.The 350020’s EMI immunity and isolated inputs eliminated false alerts,while its real-time trip capability prevented pump seizure during imbalance events.Over 18 months,the plant reduced pump-related downtime by 85%,avoided 3 environmental spills(from pump failures),and saved$320,000 in cleanup and regulatory costs.​

Related Product Combination Solutions​

Bently Nevada 3500/15:System Chassis.Houses up to 8 350020 modules,providing power distribution and backplane communication.​

Bently Nevada 330180:Proximity Probe.Captures radial vibration data for 350020 analysis,ideal for turbine shaft monitoring.​

Bently Nevada 1900/65:Accelerometer.Delivers axial vibration signals to 350020,optimized for motor and pump applications.​

Bently Nevada 3500/92:Communication Module.Enables 350020 to transmit data to PlantPAx DCS or asset management software.​

Baker Hughes PUMPSCOPE:Analysis Software.Visualizes 350020 vibration data,identifies fault patterns,and generates maintenance reports.​

Bently Nevada 3500/22:Transducer Power Supply.Delivers stable 24VDC to sensors paired with 350020,ensuring signal integrity.​

Bently Nevada 3500/42M:Machinery Protection Module.Works with 350020 to trigger emergency shutdowns during critical vibration events.​

Installation,Maintenance,and Full-Cycle Support​

Installation preparation:Power off the 3500 chassis before inserting 350020 to prevent backplane damage.Verify compatibility with 3500 system firmware v4.0+(upgrade required for older systems).Connect sensors using shielded twisted-pair cable(min 18AWG)and ground the shield at one end to reduce EMI.Use the 3500 Configuration Software to set alarm thresholds(reference ISO 10816 for industry standards)—most technicians complete setup in 2-3 hours per module.​

Maintenance and support:Routine maintenance involves monthly verification of alarm settings and quarterly sensor calibration(using Bently Nevada 9100 Calibrator).Clean module vents bi-annually with compressed air to prevent overheating.If a channel faults,use the self-diagnostic log to identify issues(sensor failure vs.module defect).We offer a 48-month warranty,24/7 technical support via phone/email,and on-site troubleshooting.For urgent replacements,our global logistics network delivers 350020 in 48-72 hours to most regions.​

Whether you’re protecting turbines in power plants,compressors in oil&gas,or pumps in chemical facilities,the Bently Nevada 350020 delivers the precision and reliability to optimize your predictive maintenance program.Contact us today for a customized asset health monitoring solution tailored to your critical machinery’s unique needs!​

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