Instruction manual for the Model 7264D piezoresistive accelerometer
The Endevco IM7264D is a low mass, miniature piezoresistive accelerometer. The document outlines the materials required for mounting, including specific Allen wrenches and screws supplied with the unit. It emphasizes precautions such as avoiding drops and preventing over-torque during installation to avoid damaging the unit.
The manual details a check-out procedure to verify proper operation upon receipt, including impedance tests, insulation resistance checks, and zero measurand output verification. It also provides step-by-step mounting instructions, specifying surface roughness requirements and torque values, along with guidelines for cable management and recalibration intervals.
| Type | low mass, miniature piezoresistive accelerometer |
|---|---|
| Mounting Torque | 2.6 in-lbf (0.29 N-m) recommended, 3.0 in-lbf (0.34 N-m) maximum |
| Insulation Resistance | 100 megohms minimum |
| Recommended Surface Roughness | 32 microinch rms |
| Calibration Interval | 6 to 12 month intervals |
Avoid dropping the accelerometer or striking the unit against hard surfaces, and keep the protective sleeve on until the unit is installed.
The maximum recommended mounting torque is 3.0 in-lbf (0.34 N-m).
All insulation resistance readings should be 100 megohms minimum.
Sensitivity and ZMO calibration should be performed at 6 to 12 month intervals.