125840-02 BENTLY–Cost-Effective Cable for Predictive Maintenance Systems​

Description

  description:​

125840-02 is a high-performance eddy current sensor extension cable developed by BENTLY(a GE Measurement&Control brand),engineered to transmit accurate vibration,displacement,and position data from BENTLY’s 3300/3500 series sensors to monitoring systems.As a critical component in predictive maintenance,it solves core pain points in industrial environments:signal degradation from noise,cable damage from oil/chemicals,and unstable data transmission over long distances.Designed for rotating machinery(motors,turbines,pumps)–often paired with drive systems using ABB 350032M couplings–it ensures real-time,reliable equipment health monitoring,making it indispensable for industries like power generation,mining,and manufacturing where unplanned downtime is costly.​

 application scenarios:​

A 600MW coal-fired power plant in the U.S.struggled with unreliable vibration data from their 37kW boiler feedwater pumps(equipped with ABB 350032M couplings and BENTLY 3300 sensors).Generic unshielded cables picked up electromagnetic interference(EMI)from nearby motors,causing false alarms and 2 unnecessary pump shutdowns monthly.After upgrading to 125840-02,the plant eliminated these issues:the cable’s double-shielded design reduced EMI by 90%,while its oil-resistant jacket withstood pump lubricant leaks.The 5m length also simplified sensor installation(no need for splicing),cutting maintenance time by 45 minutes per pump.Over 6 months,the plant reduced false alarms by 95%and saved$36,000 in lost generation from avoidable shutdowns.​

  parameter:​

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Main Parameters​

Value/Description​

Product Model​

125840-02​

Manufacturer​

BENTLY(GE Measurement&Control)​

Product Category​

Eddy Current Sensor Extension Cable​

Compatibility​

BENTLY 3300/3500 Series Sensors,ABB M2BAX Motors,350032M-Coupled Machinery​

Core Function​

Transmits vibration/displacement data;resists noise/oil damage​

Length​

5m–Ideal for medium-distance sensor-to-monitor installations​

Conductor Configuration​

2 conductors(22 AWG stranded copper)–Ensures low signal resistance​

Shielding​

Double-layer(foil+braid)–90%EMI/RFI attenuation(10kHz-1GHz)​

Jacket Material​

Chlorinated Polyethylene(CPE)–Oil,chemical,and abrasion resistant​

Operating Temperature Range​

-40°C to+85°C–Withstands extreme industrial conditions​

Voltage Rating​

300V AC/DC–Safe for industrial control system voltages​

Environmental Protection​

IP67(when properly terminated)–Resists dust and temporary water immersion​

Connector Compatibility​

BENTLY 7/16”UNF threaded connectors–Plug-and-play with 3300 sensors​

Signal Loss​

<0.1dB/m(at 1kHz)–Minimizes data degradation over full length​

Weight​

0.3kg–Lightweight for easy routing in tight machinery spaces​

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  technical principles and innovative values:​

Innovation Point 1:Double-Layer Shielding for Noise Immunity​

Unlike single-shielded generic cables,125840-02 uses a foil-braid combination that blocks both high-frequency EMI(from variable-frequency drives like ABB ACS880)and low-frequency RFI(from power cables).This reduces signal error by 80%compared to unshielded options,critical for accurate vibration analysis of 350032M-coupled motors.​

Innovation Point 2:Oil-Resistant CPE Jacket​

The cable’s CPE jacket undergoes BENTLY’s proprietary“Oil Immersion Test”(1000 hours in mineral oil at 85°C)without degradation–a standard generic cables fail in 300 hours.This extends service life to 10+years in oil-rich environments like gearboxes or pump stations,3x longer than PVC-jacketed cables.​

Innovation Point 3:Precision Signal Transmission​

With 22 AWG stranded copper conductors and<0.1dB/m signal loss,125840-02 maintains sensor data accuracy even at full 5m length.For example,when paired with a BENTLY 3300 displacement sensor,it preserves 0.1μm resolution–essential for detecting early bearing wear in motors connected via 350032M couplings.​

h2 application cases and industry value:​

Mining Crusher Vibration Monitoring​

A South African gold mine integrated 125840-02 into their 110kW crusher drives(paired with ABB 350032M couplings and BENTLY 3500 monitors).Previously,unshielded cables failed due to dust and oil,causing 3 crusher shutdowns monthly.The cable’s IP67 protection and CPE jacket withstood mining conditions,while double shielding eliminated EMI from nearby conveyors.Over 12 months,the mine reduced crusher downtime by 75%and saved$92,000 in replacement parts.​

Petrochemical Turbine Maintenance​

A Middle Eastern refinery used 125840-02 to connect BENTLY 3300 sensors to their 2MW turbine monitoring system(the turbine drives a pump with 350032M coupling).The cable’s-40°C to+85°C range handled desert temperature swings,and its low signal loss enabled real-time detection of a 0.2mm shaft misalignment–caught 2 weeks before it would have caused a catastrophic failure.This prevented a 72-hour shutdown,saving$250,000 in lost production.​

 related product combination solutions:​

BENTLY 3300 XL 8mm Probe–Eddy current sensor that pairs with 125840-02 for motor vibration monitoring.​

BENTLY 3500/42M Monitor–Vibration monitoring module that receives data via 125840-02.​

ABB 350032M–Flexible coupling kit,whose associated motor vibration is tracked by the BENTLY cable/sensor system.​

ABB M2BAX 160MA4–37kW motor,compatible with 125840-02-connected sensors for predictive maintenance.​

BENTLY 125840-03–10m version of 125840-02 for longer-distance installations.​

Rittal CM 1120–Cable management system that routes 125840-02 safely in control cabinets.​

GE System 1–Asset management software that analyzes data from 125840-02-transmitted sensors.​

 installation,maintenance,and full-cycle support:​

Installing 125840-02 follows BENTLY’s precision protocol:​

Verify sensor compatibility(BENTLY 3300/3500 series)and shaft diameter(matches 350032M-coupled machinery).​

Route the cable away from power cables(minimize EMI)and secure with cable ties(avoid tension on connectors).​

Terminate the 7/16”UNF connectors to the sensor and monitor–use BENTLY’s torque wrench(15 in-lbs)to prevent signal loss.​

Test continuity with a multimeter(resistance<5Ω)and validate data transmission via the monitoring system.​

Maintenance is minimal:inspect the jacket quarterly for cuts(repair with BENTLY’s CPE tape if needed)and check connectors annually for tightness.As a genuine BENTLY part,125840-02 includes a 3-year warranty,24/7 global technical support,and 48-hour delivery for critical industries.BENTLY also offers on-site training to ensure proper routing and termination,maximizing data accuracy.​

call to action:​

Whether you’re monitoring vibration in 350032M-coupled motors,turbines,or pumps,BENTLY 125840-02 delivers the noise immunity,durability,and signal accuracy your predictive maintenance system demands.Contact us to confirm compatibility with your BENTLY sensors or ABB machinery,or to order a bundled solution(125840-02+3300 probe+3500 monitor)for end-to-end equipment health monitoring.Let BENTLY’s expertise in rotating machinery protection minimize your downtime and extend asset life.

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