Fresenius Medical Care 4008 E User Manual

Fresenius Medical Care 4008 4/09.03 (TM) 8-179
8.20 P.C.B. LP 644-4 Display board (HEP)
8.20.1 Description
● General information
P.C.B. LP 644-4 comprises the elements for the display and the operating keyboard. All elements
are covered by a water-tight foil.
● Display
All of the information required is given to the user by three seven-segment displays and two
LEDs.
● Keyboard
The keyboard comprises six individual make contacts, which are directly soldered into the printed
circuit board. These contacts constitute a 2x3 matrix and are directly connected to and evaluated
by the gate array.

Fresenius Medical Care 4008 E Specifications

General

Brand	Fresenius Medical Care
Model	4008 E
Category	Medical Equipment
Language	English