4114B1, 4-Channel LIVM Line-Powered Current Source Power Unit

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 4114B1 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 4114B1 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.

Model 4114B1 may be used as a stand-alone “desktop” unit or may be rack mounted in an available 19-inch wide by 5.25-inch high rack adaptor. The narrow width (only 1.65 inches) allows up to 10 model 4114B1’s to be installed in the Dytran model 4200 rack adaptor.

The standard version of model 4114B1 operates from 115 VAC line power. A 230 VAC version, model E4114B1, is also available for use in countries where the normal voltage line if 230 VAC.