The Dytran model 4007 is packaged on a single printed circuit board intended for installation in OEM applications. This unit may be used to power up to four IEPE transducers. Its output DC levels are proportional to the RMS amplitudes of the transducers' signals. The excitation current is factory set to 2.5 mA, and may be set from 2.5 to 6 mA by a potentiometer on each channel. Signal amplitudes up to 2V RMS are converted to a DC level between 1 and 5 VDC with a true–RMS conversion circuit. Each channel has an LED indicate current and the current for each channel can br turned off by a switch. An input sensing circuit on channel 1 provides a logic output for an open or short condition at the input.

Two switchable low pass filter cutoffs for each channel are 3 kHz– LO, and 10 kHZ– Hl. Other filter cutoff frequencies can be provided.