Overview of the Applications and Solutions of 330400 and 330425 Series Accelerometers in Industrial Vibration Monitoring
2026-04-21 10:02:36
6 min read
About the author
Written by Miya Zheng , Director of Moore Automated
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Miya Zheng, Sales Director at Moore Automated, brings more than twelve years of deep, hands-on industry experience and a consistently demonstrated ability to drive commercial success. Throughout her career, miya has developed a comprehensive understanding of automation technologies, market dynamics, and customer requirements across diverse sectors. Her track record includes building sustainable client relationships, leading high-impact sales initiatives, and delivering revenue growth in both established and emerging markets.
What are the 330400 and 330425 accelerometer sensors? What vibration measurement scenarios are they suitable for?
The 330400 and 330425 accelerometer sensors (accelerometers/sensors) are piezoelectric acceleration measurement devices used for industrial vibration monitoring. They convert the acceleration signals generated by mechanical vibrations into measurable electrical signals. They are commonly used in condition monitoring systems for rotating machinery (such as motors, pumps, compressors, and steam turbines) to assess equipment operating conditions, identify early faults, and perform predictive maintenance by acquiring vibration signals. From an application perspective, these two models typically meet the needs of medium- and high-frequency vibration measurement, are suitable for long-term online monitoring environments, and possess good stability and resistance to industrial interference.
Comparison of Structural Form and Performance Characteristics
According to typical datasheet definitions, the main differences between the 330400 and 330425 lie in their mechanical structure and installation methods, such as housing type, mounting thread configuration, and cable connection methods. However, both employ piezoelectric sensing technology as their core measurement principle. Both feature a wide frequency response range, high sensitivity, and good resistance to environmental changes (such as temperature variations and electromagnetic interference), making them suitable for harsh industrial environments. In system integration, these sensors are typically used in conjunction with vibration monitoring modules or DCS/PLC systems to continuously acquire vibration acceleration data, thus providing the basic signal input for equipment health analysis.
Moore Automated is a leading supplier in industrial automation and process control, offering accelerometer sensors and related solutions, including the 330400 and 330425 series. These sensors are primarily used for vibration monitoring and condition diagnostics of rotating machinery, operating stably in high-temperature, high-vibration industrial environments, providing a reliable data foundation for equipment health management systems.
330400-01-05 Overview of Accelerometer Sensors
The 330400-01-05 is a sub-configuration model of the 330400 series accelerometer sensor. It is typically adapted to specific field conditions through different sensitivity calibrations, mounting methods, or output cable configurations. Based on the piezoelectric measurement principle, this model provides a stable output electrical signal proportional to the mechanical vibration acceleration, making it suitable for long-term online monitoring of rotating machinery such as motors, pumps, fans, and compressors.
The 330400 series accelerometers are primarily used for online vibration monitoring and condition diagnosis of industrial rotating machinery, such as critical equipment like motors, pumps, fans, compressors, and steam turbines. Due to its good environmental adaptability and stable output capabilities, the 330400 Series is often deployed in industrial sites requiring continuous monitoring and long-term operational reliability.
330425 Series Applications
The 330425 series accelerometers are also geared towards industrial vibration monitoring, but typically emphasize adaptability to complex or more demanding conditions, such as higher temperature environments, areas with strong vibration, or space-constrained installation locations. This series is commonly used for critical point monitoring in power, petrochemical, and heavy industrial equipment, providing fundamental signal support for equipment health assessment and condition trend analysis by continuously acquiring vibration acceleration data.
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Q1:What is the core difference between the 330400 and 330425?
The 330400 has a range of approximately 50 g peak and a sensitivity of approximately 100 mV/g; the 330425 has a higher range of approximately 75 g peak, but a lower sensitivity of approximately 25 mV/g, making it more suitable for high-vibration environments.
Q2:Where are these sensors mainly installed?
They are typically installed on bearing housings or machine casing surfaces to capture vibration signals transmitted by the structure.
Q3:Which monitoring systems do they support?
It can be connected to the Bently Nevada monitoring system or other industrial PLC/DCS vibration acquisition modules.
Q4:What value does Moore Automated provide?
Moore Automated provides original equipment manufacturer (OEM) product supply, selection support, and industrial application solutions to help users achieve reliable vibration monitoring system integration
Q5:What fault analyses can they be used for?
They can be used to identify problems such as imbalance, misalignment, bearing wear, looseness, and abnormal gear meshing.
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