This file is the instruction manual for the IM7264B model accelerometer
The document serves as an instruction manual for the Endevco Model 7264B, a low mass, miniature piezoresistive accelerometer. It details the specific materials required for mounting, such as Allen wrenches and socket head cap screws, and emphasizes precautions to avoid damaging the unit during handling and installation. Special attention is given to avoiding over-torquing the mounting screws, with a recommended torque of 2.6 in-lbf and a maximum of 3.0 in-lbf.
The guide outlines a three-step check-out procedure to verify proper operation upon receipt, including impedance testing, insulation resistance measurement, and zero measurand output verification. It also covers proper mounting techniques, such as ensuring a clean surface, using supplied washers, and securing the cable to prevent strain, along with guidelines for recalibration intervals and cleaning.
| 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 |
| Impedance tolerance | ±25% |
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.
Dirty units may be wiped clean using a damp cloth and a solvent such as acetone, but should not be soaked.