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
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.
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.