​​Product Description​​

The​​Bently Nevada 176449-02V​​is a high-performance seismic vibration transmitter designed for continuous monitoring of absolute casing vibration in rotating machinery.This robust 4-20mA transmitter converts velocity signals from seismic transducers into standardized outputs for machinery protection systems.Engineered for critical industrial applications,it provides reliable vibration monitoring for pumps,compressors,fans,and other mechanical equipment where casing vibration measurement is essential for asset protection.

​​Application Scenarios​​

In a large petrochemical plant,multiple​​Bently Nevada 176449-02V​​transmitters monitor bearing housing vibrations on critical centrifugal compressors in the ethylene production unit.Each transmitter processes signals from velocity sensors measuring absolute casing vibration,providing real-time 4-20mA outputs proportional to vibration velocity to the distributed control system.When imbalance develops in a compressor rotor due to fouling,the​​176449-02V​​detects the increasing vibration levels and triggers alarms at predetermined setpoints.The early warning allows maintenance teams to schedule intervention before catastrophic bearing failure occurs,preventing unplanned shutdowns that could disrupt the entire production line.The transmitter’s rugged design withstands the high-temperature and high-electrical-noise environment typical of petrochemical facilities.

​​Technical Parameters​​

Main Parameters

Value/Description

​​Product Model​​

​​176449-02V​​

​​Manufacturer​​

Bently Nevada(Baker Hughes)

​​Product Category​​

Seismic Vibration Transmitter

​​Input Signal​​

From velocity transducers(typically 100mV/in/sec)

​​Output Signal​​

4-20mA,proportional to vibration velocity

​​Measuring Range​​

0-2 in/sec peak(0-50 mm/sec peak)

​​Frequency Response​​

10 Hz to 1000 Hz(±3dB)

​​Power Supply​​

18-30V DC loop power

​​Accuracy​​

±1%of full scale

​​Alarm Setpoints​​

Adjustable via front-panel potentiometers

​​Operating Temperature​​

-40°C to+85°C

​​Housing​​

NEMA 4X weatherproof enclosure

​​Electrical Connections​​

Conduit entries with terminal block connections

​​Certifications​​

ATEX,IECEx options available

​​Mounting​​

Surface mount or DIN-rail

​​Technical Principles and Innovative Values​​

​​Innovation Point 1:Advanced Signal Conditioning Technology.​​The​​Bently Nevada 176449-02V​​incorporates precision signal processing that converts the raw AC voltage from velocity transducers into a true peak DC representation proportional to vibration velocity.This processing includes integration circuitry,automatic temperature compensation,and EMI filtering to ensure accurate vibration measurement unaffected by environmental conditions.The transmitter maintains long-term calibration stability,reducing maintenance requirements.

​​Innovation Point 2:Dual Alarm Setpoint Configuration.​​Each transmitter features independently adjustable alarm and danger setpoints with dedicated relay outputs.This dual-threshold design enables staged response to deteriorating machinery conditions,providing early warning alerts for maintenance planning while maintaining immediate shutdown capability for critical protection.The setpoints are easily configured via front-accessible potentiometers with clear visual indicators.

​​Innovation Point 3:Robust Industrial Design.​​Engineered for harsh environments,the transmitter features a NEMA 4X rated enclosure that provides exceptional protection against moisture,dust,and corrosive atmospheres.The design includes electrical isolation and surge protection to ensure reliable operation in areas with significant electrical noise and transient voltages common in industrial settings.

​​Application Cases and Industry Value​​

​​Case Study:Power Generation Fan Monitoring System.​​A thermal power plant implemented​​Bently Nevada 176449-02V​​transmitters on induced draft fans critical to boiler operation.Previously,undetected bearing degradation caused a catastrophic fan failure resulting in a 14-day outage and 2.3millioninrepaircostsandlostproduction.Afterinstallation,thetransmittersdetectedabnormalvibrationpatternsonFanID−07Athreemonthsbeforefailurewouldhaveoccurred.Theearlydetectionallowedplannedreplacementduringascheduledmaintenancewindow,avoidinganunplannedshutdownandsavinganestimated1.8 million in the first incident alone.The system has since prevented three additional potential failures over two years of operation.

​​Related Product Combination Solutions​​

​​3300 XL Seismic Transducers​​:Velocity sensors providing input to​​176449-02V​​

​​3500 Machinery Protection System​​:Integration with comprehensive monitoring systems

​​Trendmaster®Web Software​​:Condition monitoring software for data analysis

​​Power Supplies​​:24V DC power sources for transmitter operation

​​Barrier Modules​​:Intrinsic safety barriers for hazardous area installations

​​Signal Conditioners​​:Additional processing for complex monitoring applications

​​Mounting Hardware​​:DIN-rail kits and explosion-proof enclosures

​​Installation,Maintenance,and Full-Cycle Support​​

Installation of the​​Bently Nevada 176449-02V​​requires proper mounting with adequate clearance for wiring and calibration access.The transmitter should be located in a protected area with conduit connections to prevent moisture ingress.Calibration involves setting the scale factor to match the transducer sensitivity and adjusting alarm setpoints according to machinery protection requirements.

Routine maintenance includes periodic verification of calibration accuracy using a vibration simulator,inspection of electrical connections for corrosion or looseness,and confirmation of alarm functionality.The transmitter’s simple design allows for easy troubleshooting with standard test equipment.

We provide comprehensive support for the​​Bently Nevada 176449-02V​​,including selection guidance,installation supervision,and calibration services.Our technical team offers rapid response for troubleshooting and performance optimization.