Description
Bently 330400-02-05
Technical Specifications
- Product Series: 330400 Accelerometer
- Measurement Type: Absolute Casing Vibration (Acceleration)
- Sensitivity: 100 mV/g ± 5%
- Mounting Thread: M8 x 1 Metric
- System Compliance: API 670 Standard
Functional Features
- Metric Compatibility: Perfectly suited for European and Asian-manufactured rotating equipment utilizing metric fasteners.
- High-Fidelity Signal: Captures critical high-frequency vibration data for advanced diagnostic algorithms and trending.
- Environmental Resilience: Unaffected by oil, water, or steam, ensuring reliable operation in harsh industrial environments.
Application Scenarios
Deployed globally in refineries, power plants, and manufacturing facilities for monitoring pumps, fans, compressors, and turbines where metric mounting standards are required.
Performance Parameters
- Frequency Response: 5 Hz to 15,000 Hz (± 5%)
- Amplitude Range: 50 g peak
- Operating Temperature Range: -54°C to +177°C (-65°F to +350°F)
- Supply Voltage: +8 to +30 VDC (ICP/IEPE powered)
Material Composition
Constructed from high-grade 316L stainless steel with hermetically sealed internal components, ensuring structural integrity and electrical isolation in demanding environments.
Structural Characteristics
Features a streamlined, low-profile design with a precision-machined M8 mounting base. The design ensures concentricity and flatness to guarantee uniform mechanical coupling to the target surface.
Working Principle
Relies on the piezoelectric effect. Vibration-induced forces compress the internal crystal, generating a charge that is amplified into a linear voltage output proportional to the acceleration of the machine casing.
Installation Requirements
Install in a properly tapped M8 hole on a clean, flat machine surface. Apply the manufacturer’s recommended torque to prevent mechanical distortion and ensure optimal high-frequency response.
Usage Precautions
Inspect the mounting threads and sensor base for damage before installation. Ensure the mating surface is free of paint, rust, or debris to maintain accurate mechanical coupling.




