The Endevco® Model 727 is a rugged undamped piezoresistive accelerometer designed for shock measurements in mobile consumer electronic devices.
This manual provides detailed instructions for using the Endevco® Model 727 piezoresistive drop test accelerometers, including handling precautions, mounting procedures, cable handling, and electrical specifications. It emphasizes the importance of careful handling to avoid damage due to resonance and ESD, and outlines mounting surface preparation, adhesive use, and cable strain relief. Electrical considerations include excitation voltage, signal leads, and effects of long cable lengths on sensitivity and high-frequency response.
| Excitation Voltage | 10.000±0.005 Vdc (max 12 Vdc without damage) |
|---|---|
| Input/Output Resistance | 650 Ω ± 300 Ω |
| Mounting Surface Roughness | 32 micro inches rms or better |
The drop-test accelerometers are calibrated using an excitation voltage of 10.000±0.005 Vdc, unless otherwise specified at the time of order.
Aremco CrystalbondTM 509 is recommended for use up to 60°C, applied as a thin, uniform layer and allowed to set for at least 1 minute.