Double Integrator/High Pass Filter Converts Vibration Data From Acceleration to Displacement Format 
For more technical information:
Low frequency vibration data is often required presented in displacement format, which more clearly relates to parameters such as dynamic strain and movement.
A Charge Amplifier will be required when using Charge Output Accelerometers.
Two switched high pass filter corner frequencies are provided, together with six switched, 10dB increment displacement scalings
Standard Scaling
Switchable high pass filter frequencies of 5 & 20Hz, displacement range 0.0316, 0.1, 0.316, 1, 3.16, 10mm pk. pk./volt pk. for 10mV pk./g input.