June 4, 2008, Depew, NY, USA –PCB Piezotronics has introduced a new family of rack mounted signal conditioners, available with selectable filters or isolated grounds. These signal conditioners are best suited for applications where case ground piezoelectric sensors are used and could potentially cause ground-loop noise, such as during aerospace or satellite component vibration testing, automotive component testing, product testing, drop testing, and any general vibration testing.

Model 483C30 features eight channels with true galvanic isolation of each input to output, which is also selectable on/off per channel. Isolation is ideal for the removal of ground loop noise caused by sensors which are electrically on ground. Other features in this low-noise model include choice of ICP^®, charge, or voltage inputs; multiple charge input sensitivities (0.1, 1, 10 mV/pC); incremental gain (x0.1 to x200); internal/external calibration; 4-order 10 kHz low pass filter; and Ethernet interface, for ease of setup with supplied software. Other frequency filters are available as options.

For better filtering options, Model 481A03 features 16 channels of ICP^® inputs with programmable eight-order Elliptical low pass filters (>256 steps), incremental gain (x0.0025 to x200), internal/external calibration, programmable overload threshold, and RS-232 interface for setup with supplied software. Other filter alternatives are available. This unit can be used with all models of ICP^® sensors for vibration, pressure, force, and strain measurement. For detailed specifications, drawings or additional information, contact the PCB Piezotronics toll-free at (888) 684-0013 (in the U.S); E-mail: electronics@pcb.com; or visit www.pcb.com.