2440

The Model 2440 triaxial accelerometer is a higher performance and wider temperature range version of the model 2430. It combines three orthogonally mounted Model 1221L accelerometers, in a rugged case for measuring accelerations in commercial and industrial environments. This low noise module is tailored for zero to medium frequency instrumentation applications. The anodized aluminum case is epoxy sealed and is easily mounted via two #8 (or M4) screws. The design includes an instrumentation amplifier on each axis providing high drive capability and low output impedance. On-board voltage regulation and an internal voltage reference eliminate the need for precision power supplies. No power supply current flows through the OUTPUT REF wire; this high impedance input is used only as a reference for the acceleration outputs which reduces cross talk among the three channels by rejecting noise from voltage differences between the user's data acquisition equipment and power supply grounds. The 2440 is relatively insensitive to temperature changes and gradients. An initial calibration sheet (2440-CAL) isincluded and periodic calibration checking is available.