The Dytran model 4114B1 is a line–operated constant current power unit designed to power IEPE sensors and in–line charge amplifiers. This unit provides 2 to 20 mA of constant current at +24 VDC compliance voltage. model 4114 is a 4–channel unit with (4) BNC sensor jacks and (4) BNC output jacks. Electrical connectors are mounted on the rear panel of the unit.

The Dytran model 4114 contains highly regulated +24 VDC power supply coupled to adjustable constant current circuits. The constant current circuits consist of clamped–base PNP transistors with variable emitter resistor to adjust the current. The current output of these circuits is user–settable over the range of 2 to 20 mA. The constant current is supplied to the sensors via the rear–panel sensor jacks.

The standard version of model 4114 operates from 115 VAC line power. A 230 VAC version, model E4114, is also available for use in countries where the normal voltage line is�230 VAC.