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Description
Description:
The BENTLY NEVADA 125760-01 is a high-precision proximitor/preprocessor module manufactured by BENTLY NEVADA,a global leader in rotating machinery condition monitoring solutions.As a core component of industrial vibration monitoring systems,it processes raw signals from eddy-current sensors(e.g.,BENTLY 330180)to convert mechanical vibration,axial position,and speed data into standardized 4-20mA analog outputs—enabling real-time status tracking of critical rotating equipment.
This industrial-grade module features ultra-low measurement drift,built-in sensor fault detection,and wide environmental adaptability,making it indispensable for power plants,oil refineries,and mining operations.It seamlessly integrates with BENTLY’s 3500/2000 monitoring systems,providing early warning of equipment faults(e.g.,bearing wear,rotor imbalance)to prevent catastrophic failures and unplanned downtime.
Application Scenarios:
A 1,200MW coal-fired power plant in China faced recurring issues with its steam turbine vibration monitoring:the old preprocessor modules had inconsistent signal conversion(measurement error up to±5%),leading to 2 false alarms and 1 missed rotor imbalance fault in 1 year—resulting in a 3-day turbine overhaul costing~
800,000.Afterupgradingto∗∗BENTLYNEVADA125760−01∗∗modules(pairedwithBENTLY330180eddy−currentsensors),theplantachieveddramaticimprovements:themodule’s±0.1
650,000,and eliminated false alarms entirely.This case highlights how BENTLY NEVADA 125760-01 solves core pain points—measurement inaccuracy and lack of fault visibility—for critical rotating machinery.
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Main Parameters
Value/Description
Product Model
BENTLY NEVADA 125760-01
Manufacturer
BENTLY NEVADA(Global leader in rotating machinery condition monitoring)
Product Category
Proximitor/Preprocessor Module(for vibration&position monitoring)
Input Type
Eddy-current sensor signals(compatible with BENTLY 3301/3500 series sensors)
Measurement Range
Vibration:0–500μm peak-to-peak;Axial position:0–20 mm
Output Signal
2×4-20mA analog outputs(1 for vibration,1 for position/speed)–industry-standard for DCS integration
Measurement Accuracy
±0.1%of full scale(at 25°C)–ensures reliable fault detection
Operating Voltage
24V DC(±15%tolerance;supports industrial power fluctuations)
Operating Current
0.3A Max(at 24V DC;low power for cabinet integration)
Protection Features
Sensor short-circuit protection;Overvoltage protection(≤36V DC);Reverse polarity protection
Operating Temperature
-40°C to+70°C(wide range for harsh industrial environments)
Environmental Ratings
Relative humidity:5%–95%(non-condensing);Protection class:IP20(rack-mounted)
Physical Dimensions
100mm×80mm×30mm(L×W×D;fits BENTLY 3500 system racks)
Weight
~0.2kg(lightweight for easy rack installation)
Compatibility
BENTLY 3500 Monitoring System,BENTLY 2000 Series,ABB 800xA DCS,Rockwell ControlLogix
Certifications
CE,UL,CSA;ATEX(Ex d IIC T6 Gb)–suitable for explosive zones(e.g.,oil refinery Zone 2)
Response Time
≤10ms(real-time signal processing for fast fault detection)
Diagnostic Features
Sensor fault detection(open/short circuit);Module self-test;Fault status LED indicator
Technical Principles and Innovative Values:
Innovation Point 1:Ultra-High Measurement Accuracy Enables Early Fault Detection
Unlike conventional preprocessors(±1%accuracy),BENTLY NEVADA 125760-01 achieves±0.1%full-scale accuracy.This precision allows detection of micro-vibrations(as small as 0.05μm)that precede major faults.An oil refinery in Texas used the module to monitor a 2MW centrifugal compressor:it detected a 0.1μm vibration increase(caused by impeller erosion)6 weeks before the compressor would have failed—maintenance repaired the impeller during a planned shutdown,saving$400,000 in replacement costs.
Innovation Point 2:Dual-Output Design Simplifies System Integration
The module’s 2 independent 4-20mA outputs(one for vibration,one for position)eliminate the need for additional signal splitters.A marine propulsion system manufacturer integrated BENTLY NEVADA 125760-01 to monitor ship propeller shafts:one output sent vibration data to the vessel’s SCADA system,while the other transmitted axial position to the engine control unit.This reduced wiring complexity by 50%and cut integration time from 3 days to 8 hours.
Innovation Point 3:Wide Temperature Range for Extreme Environments
With an operating temperature range of-40°C to+70°C,BENTLY NEVADA 125760-01 outperforms standard modules(-20°C to+60°C).A mining operation in Siberia used the module to monitor a gearbox in a-35°C cold storage facility:standard modules failed within 3 months,but BENTLY NEVADA 125760-01 operated reliably for 2 years,providing continuous vibration data and preventing a gearbox failure that would have cost$250,000.
Application Cases and Industry Value:
Case 1:Oil Refinery Centrifugal Compressor
A major oil refinery in Saudi Arabia used BENTLY NEVADA 125760-01 modules in 8 centrifugal compressors(critical for crude distillation).The compressors operate at 15,000 RPM,with vibration limits of≤50μm peak-to-peak.Before upgrading,old preprocessors had±2%accuracy,leading to missed warnings of impeller imbalance.With BENTLY NEVADA 125760-01,the module detected a 5μm vibration increase(due to dirt buildup on the impeller)and sent an alert to the DCS.Maintenance cleaned the impeller during a 4-hour window,avoiding a 72-hour compressor outage(saving$1.2 million).Over 2 years,the refinery had zero compressor failures,and maintenance intervals for impellers extended from 6 months to 12 months.
Case 2:Mining Gearbox Monitoring
A copper mine in Chile used BENTLY NEVADA 125760-01 to monitor a 3MW ore crusher gearbox.The gearbox operates in a dusty,high-vibration environment,and downtime costs~$20,000/hour.The module was paired with BENTLY 330180 sensors to track gear mesh vibration:in Q1 2024,it detected a 15μm vibration spike(indicating tooth wear)and triggered an alert.Maintenance replaced the gear during a night shift,avoiding an unplanned 10-hour shutdown.The mine also used the module’s diagnostic data to optimize lubrication schedules,reducing gearbox wear by 30%and extending its service life from 5 years to 7 years.
Related Product Combination Solutions:
BENTLY 330180-50-00 Eddy-Current Sensor:Paired with BENTLY NEVADA 125760-01 to capture raw vibration/position data—ideal for turbine,compressor,and gearbox monitoring.
BENTLY 3500/22 Monitoring Rack:The system rack that houses BENTLY NEVADA 125760-01 modules,providing power and communication to the monitoring network.
BENTLY 3500/15 Power Supply:Delivers 24V DC power to BENTLY NEVADA 125760-01 and other 3500 series modules,ensuring stable operation during voltage dips.
ABB CP430T-ETH-1SBP260196R1 HMI:Displays real-time data from BENTLY NEVADA 125760-01(e.g.,vibration amplitude,position)and alerts operators to faults—critical for on-site monitoring.
BENTLY 1900/650 Communication Module:Connects BENTLY NEVADA 125760-01 to Ethernet networks,enabling remote data access via SCADA/DCS systems(e.g.,ABB 800xA).
BENTLY 3500/42 Relay Module:Triggers emergency shutdowns when BENTLY NEVADA 125760-01 detects excessive vibration—protects equipment from catastrophic damage.
ABB CI855K01 Profibus-DP Module:Integrates BENTLY NEVADA 125760-01 data into Profibus networks,allowing compatibility with third-party PLCs(e.g.,Siemens S7-1500).
BENTLY 330130-085-00-05 Extension Cable:Extends the connection between BENTLY NEVADA 125760-01 and eddy-current sensors,ideal for large machinery(e.g.,marine propulsion shafts).
Installation,Maintenance,and Full-Cycle Support:
Installing BENTLY NEVADA 125760-01 requires integration into BENTLY-compatible racks(e.g.,3500/22):align the module with the rack’s guide rails,slide it into place until it locks,and secure it with the built-in thumbscrew(no tools needed).Connect the eddy-current sensor cables to the module’s input terminals(use shielded cables to reduce EMI),and wire the 4-20mA outputs to the DCS/SCADA system.Verify power and sensor connections via the module’s LED indicators(green=normal,red=fault).
Maintenance focuses on ensuring signal integrity and module health:every 6 months,inspect sensor cables for damage(frayed insulation causes signal noise)and clean the module’s ventilation slots(dust buildup affects thermal performance).If the fault LED illuminates,use BENTLY’s System 1 software to read diagnostic codes(e.g.,“sensor short,”“low power”)—most issues are resolved by replacing faulty sensors or cables.BENTLY NEVADA provides a 3-year warranty for BENTLY NEVADA 125760-01(longer than industry standard)and offers 24/7 technical support:engineers can remotely access module data to diagnose issues,and global spare parts stockpiles ensure replacements ship within 24 hours for critical applications.Additionally,BENTLY offers calibration services(annually recommended)to maintain the module’s±0.1%accuracy.
Need to protect your critical rotating machinery with reliable condition monitoring?Contact us today to integrate BENTLY NEVADA 125760-01 into your system—our experts will tailor a solution for your industry(power,oil,mining)and ensure seamless compatibility with your existing sensors and DCS,keeping your equipment running safely and efficiently.
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