This document introduces the use of IM7264C sensors, including material requirements, special precautions, and inspection methods.
This document is the instruction manual for the Endevco Model 7264C, a low mass, miniature piezoresistive accelerometer. It outlines specific precautions for handling and mounting the unit to prevent damage, including torque limits and the use of supplied materials like Allen wrenches and washers.
The guide provides step-by-step instructions for initial check-out procedures, such as impedance and insulation resistance tests, as well as zero measurand output verification. It details the correct mounting techniques, including surface preparation and cable management, and specifies a recalibration schedule of 6 to 12 months depending on usage.
| Type | Piezoresistive Accelerometer |
|---|---|
| Recommended Mounting Torque | 2.6 in-lbf (0.29 N-m) |
| Maximum Mounting Torque | 3.0 in-lbf (0.34 N-m) |
| Minimum Insulation Resistance | 100 megohms |
| Recommended Surface Roughness | 32 microinch rms |
Sensitivity and ZMO calibration should be performed at 6 to 12 month intervals, depending on usage.
All readings for insulation resistance should be a minimum of 100 megohms.
Dirty units may be wiped clean with a damp cloth and a solvent such as acetone, but the unit must not be soaked or immersed.