Design [374|376|378|703|704634|635|644|645|656|657|664|665|674|675|676|677|6 84|685|284|285]; Function [374|376|378|703|704634|635|644|645|656|657|664|665|674|675| 676|677|684|685|284|285] - Seca 378 Service Manual

General information
1.2 Design and Function of the Scale Part
[374|376|378|703|704|634|635|644|645|656|657|664|665|674|675|
676|677|684|685|264|274|284|285|954|957|959|963]
1.2.1 Design
[374|376|378|703|704634|635|644|645|656|657|664|665|674|675|6
76|677|684|685|284|285]
The scale consists of the following main parts: the frame with up to four load
cells, a display unit, a key panel and a power supply unit.
1.2.2 Function
[374|376|378|703|704634|635|644|645|656|657|664|665|674|675|
676|677|684|685|284|285]
The action of a force causes elastic deformation of the load cell. A
corresponding analog signal is supplied, which changes linearly with the force
applied. This signal is measured and evaluated by the scale electronics and
displayed as a weight value. shows the functional diagram for scales with
separated modules for determining and displaying the weight.
NEC2 Display module
08-06-18-170 oder -195
ISIS BUS (Modular cable)
NEC2 DMS Module (Weight measurement)
Load Load
cell cell
Figure 1: Functional diagram [704|284|285|634|635|644|645|656|657|664|665|675|677|684|685]
14.11.12/RLEU/ARI/MRE
08-06-18-156
Load
cell
6/40
Radio module
08-06-18-172
Keyboard
DC Supply
Load
cell
seca
30-34-00-812c