Endevco® Model 2280 piezoelectric accelerometer
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Endevco® Model 2280 piezoelectric accelerometer - 1

Model 2280 Piezoelectric accelerometer Features • High temperature operation (+482ºC) • Triaxial • Ground isolated • Gas turbine testing The Endevco® model 2280 is a high temperature triaxial piezoelectric accelerometer for shock and vibration measurements at temperatures up to +900ºF (+482ºC). This accelerometer is 1.35 inch (35 mm) square and weighs less than 0.6 pounds (270 grams). It features three 10-32 side connectors and is mounted with two 8-32 bolts. The model 2280 features Meggitt’s Piezite® type P14 sensing elements in our patented Isobase® construction that provides mechanical isolation of the sensing assembly from the mounting surface, minimizing base strain sensitivity. The unit is hermetically sealed and signal ground is isolated from the outer case of the unit. The unit is fully compliant to European Union’s Low Voltage directive, 2006/95 EC, EMC directive 2004/108/EC, and bears the CE mark. Endevco® brand signal conditioner models 2721B and 2771C are recommended for use with this accelerometer.

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Endevco® Model 2280 piezoelectric accelerometer - 2

Model 2280 Piezoelectric accelerometer Specifications The following performance specifications conform to ISA-RP-37.2 (1964) and are typical values, referenced at +75˚F (+24˚C) and 100 Hz, unless otherwise noted. Calibration data, traceable to National Institute of Standards and Technology (NIST), is supplied. Dynamic characteristics Charge sensitivity Typical values pC/g 3.0 Minimum pC/g 2.4 Frequency response See typical amplitude response ±5% Hz 10 to 4000 Mounted resonance frequency (typical) kHz 25 Minimum kHz 20 Transverse sensitivity % ≤5 Amplitude linearity % 1 Per 1000g, 0 to 3000...

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