Isotron accelerometer Model 7253D0 pages

Aerospace
Energy
Test and measurement

Isotron® accelerometer
Model 7253D
Key features
• Triaxial, low-impedance t
toutput
• 360º cable orientation
• Low profile
• Hermetically sealed
• Signal ground isolated from
t mounting surface
• 7253D-10-R and 7253D-100-R t
available as replacement
tsensors

The Endevco® model 7253D is an Isotron triaxial accelerometer designed for applications requiring the
measurement of shock and vibration simultaneously in three mutually perpendicular axes. The Endevco®
model 7253D is small and lightweight with a broad frequency response. The thru-hole mounting design
allows for 360˚ cable orientation. The unit is hermetically sealed to protect against environmental
contamination. The signal ground is isolated from the mounting surface by a hard anodized insulator. The
accelerometer is available in two sensitivities, 10 mV/g (7253D-10) and 100 mV/g (7253D-100).
Each axis utilizes an Endevco type P-8 shear piezoelectric sensing element in conjunction with a hybrid
charge amplifier to provide a low impedance output of ±5 volt full scale in a two wire system IEPE
configuration. A constant current excitation of 2 to 20 mA is required for each axis. Electrical connection is
made to each axis through a 4-pin connector.
The Endevco® model 7253D is ideally suited for applications where the orientation of the connector and
sensitive axes are critical. Testing environments include flight testing, aircraft engine testing, industrial
engine testing, missile testing, aircraft component testing, spacecraft component testing, and industrial
machinery testing.