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These accelerometers are intended for critical machinery applications where casing acceleration measurements are required, such as gear mesh monitoring.  The 330400 is designed to address the requirements of American Petroleum Institute Standard 670 for accelerometers.  It provides an amplitude range of 50 g peak and a sensitivity of 100 mV/g.  The 330425 is identical except it provides a larger amplitude range (75 g peak) and a sensitivity of 25 mV/g. 

Frequently Asked Questions

Q1: What is the Bently Nevada 330425-02-00 Acceleration Transducer used for?

A: The Bently Nevada 330425-02-00 Acceleration Transducer is used for monitoring machine vibration and acceleration levels in rotating equipment.  

Q2: What is the sensitivity of the 330425-02-00 transducer?

A: The 330425-02-00 transducer provides a sensitivity of 100 mV/g ±5%, enabling accurate measurement of vibration and acceleration signals.

Q3: What is the frequency range of the 330425-02-00?

A: The 330425-02-00 transducer has a frequency range of 1 Hz to 10,000 Hz, allowing it to capture both low-frequency and high-frequency vibration events.

Q4: What power supply does the 330425-02-00 transducer require?

A: The 330425-02-00 operates with a power supply of 18 to 30 VDC, providing flexibility for integration into industrial monitoring systems.

Q5: What output signal does the 330425-02-00 transducer provide?

A: The 330425-02-00 sensor delivers a 4 to 20 mA output signal, which is widely used in industrial control and monitoring applications for reliable long-distance signal transmission.

Product Applications 

Power Industry: Primarily used to monitor the casing vibration of large steam turbine generator sets, gas turbines, water turbines, and large feedwater pumps and induced draft fans in power plants to prevent catastrophic shutdowns caused by mechanical failures.

Oil and Gas & Petrochemical Industry: Deployed in crude oil transfer pumps, centrifugal compressors for long-distance pipelines, liquefied natural gas (LNG) compressor units, and various large pumps and compressors in refineries.

Large Heavy Industry: Used to monitor critical equipment operating under harsh, heavy-load environments, such as blast furnace blowers, large exhaust fans, crushers, and rolling mills.

Air Separation & Chemical Industry: Monitors large air compressors, booster compressors, and high-speed rotating equipment in various chemical reaction processes within air separation units.