The Model 7264C is a low mass, miniature piezoresistive accelerometer. Because of its small size, certain precautions must be observed when handling and mounting the accelerometer to avoid damaging the unit.
The Endevco Model 7264C is a low mass, miniature piezoresistive accelerometer. The manual provides specific precautions for handling and mounting to avoid damage, including torque limits and the use of supplied materials like Allen wrenches and flat washers.
Upon receipt, the unit should be checked for proper operation through impedance, insulation resistance, and zero measurand output tests. The document details the correct mounting procedure, emphasizing surface cleanliness and proper torque application, and outlines a recalibration schedule of 6 to 12 months depending on usage.
The recommended mounting torque is 2.6 in-lbf (0.29 N-m), with a maximum of 3.0 in-lbf (0.34 N-m).
Sensitivity and ZMO calibration should be performed at 6 to 12 month intervals, depending on usage.
All three readings for insulation resistance should be 100 megohms minimum.