These accelerometers are intended for critical machinery applications where casing acceleration measurements are required, such as gear mesh monitoring.
It provides an amplitude range of 5 g peak and a sensitivity of 300 mV/g If housing measurements are being made for overall protection of the machine, thought should be given to the usefulness of the measurement for each application. Most common machine malfunctions (imbalance, misalignment, etc.) originate at the rotor and cause an increase (or at least a change) in rotor vibration. In order for any housing measurement alone to be effective for overall machine protection, a significant amount of rotor vibration must be faithfully transmitted to the bearing housing or machine casing, or more specifically, to the mounting location of the transducer.
In addition, care should be exercised in the physical installation of the transducer. Improper installation can result in a degradation of the transducer’s performance, and/or the generation of signals which do not represent actual machine vibration. Integration of the output to velocity can worsen this. Extreme caution should be exercised if integrating to velocity. For high quality velocity measurements the ABP Sensor should be used.