This document is the instruction manual for Model 7264B Piezoresistive Accelerometer
The Endevco Model 7264B is a low mass, miniature piezoresistive accelerometer. The document outlines specific precautions for handling and mounting to avoid damage, including the use of supplied materials like Allen wrenches and specific torque limits of 2.6 in-lbf recommended and 3.0 in-lbf maximum.
Upon receipt, users should perform three simple check-out tests: impedance test, insulation resistance test, and zero measurand output test. The manual also details the correct mounting technique, emphasizing the use of supplied washers and screws with proper lubrication and torque application to ensure correct mounting and performance.
| Mounting Torque Recommended | 2.6 in-lbf (0.29 N-m) |
|---|---|
| Mounting Torque Maximum | 3.0 in-lbf (0.34 N-m) |
| Insulation Resistance Minimum | 100 megohms |
| Impedance Tolerance | ±25% of calibrated value |
| Recommended Surface Roughness | 32 micro inch rms |
The recommended mounting torque is 2.6 in-lbf (0.29 N-m), achieved with the provided Allen wrench.
Sensitivity and ZMO calibration should be performed at 6 to 12 month intervals, depending on usage.
Yes, dirty units can be wiped clean with a damp cloth and a solvent such as acetone, but do not soak or immerse the unit.