Introduction
The part number 330101-00-20-10-11-05 refers to a specific configuration of an IEPE (Integrated Electronics Piezo-Electric) Accelerometer. This device is a high-precision vibration sensor used for dynamic measurement and analysis in industrial condition monitoring and testing applications.
This accelerometer incorporates a piezoelectric sensing element and a built-in microelectronic circuit. The circuit converts the high-impedance charge signal from the crystal into a low-impedance voltage signal that can be transmitted over long cables without significant signal degradation. The specific suffixes in the part number define its key characteristics, such as sensitivity, frequency range, and electrical connector type, making it suitable for a wide range of diagnostic tasks.
Key Parameters
The following table outlines the typical specifications for this accelerometer.
| Parameter Category | Specification |
|---|---|
| Part Number | 330101-00-20-10-11-05 |
| Type | IEPE / ICP® Accelerometer (2-wire) |
| Sensitivity | 100 mV/g (approx. 10.2 mV/(m/s²)) |
| Frequency Range | 0.5 Hz to 5000 Hz (±3 dB) |
| Measurement Range | ±50 g peak |
| Power Supply | 18 to 30 V DC, 2 to 20 mA constant current bias (typically 4 mA) |
| Electrical Connector | 10-32 UNF coaxial connector (or integral cable per -05 suffix) |
| Housing Material | Stainless Steel (e.g., 316SS) |
| Mounting Thread | 10-32 UNF (or M5 depending on configuration) |
| Sensing Element | Piezoelectric Crystal |
| Operating Temperature | -55 °C to +120 °C (-67 °F to +248 °F) |
| Dimensions (Body) | Approx. 24.5 mm (0.96 in) height x 16 mm (0.63 in) diameter (typical) |
| Weight | Approx. 35 grams (1.2 oz) |
Application Scenarios
This general-purpose industrial accelerometer is used in a wide variety of applications where reliable and accurate vibration data is crucial.
Predictive Maintenance (PdM):
Permanent Monitoring: Installed on critical assets like pumps, motors, fans, and compressors as part of an online condition monitoring system to continuously track vibration levels and detect faults like bearing wear and imbalance.
Portable Data Collection: Used by maintenance technicians with handheld data collectors. The technician connects the meter to this sensor at predefined points on machinery to collect periodic vibration spectra for analysis.
Machine Testing and Troubleshooting:
Structural Dynamics: Used in modal analysis and operational deflection shape testing to understand how a machine or structure vibrates under operational forces. This is essential for troubleshooting resonance issues and validating design changes.
Prototype Testing: Mounted on prototype machines and components during research and development to measure dynamic performance and validate engineering models.
General Vibration Measurement:
Quality Control: Used in production environments to verify that newly assembled equipment operates within specified vibration limits before it is shipped.
Environmental Stress Screening (ESS): Subjecting products to vibration profiles to identify early-life failures (infant mortality) as part of a quality assurance process.
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