Service Manual
Description of the LC2 electronics
23.07.07 Kr/Rei
Page 1(6)
30-34-00-745
Brief description of the LC display module
Introduction
The display module belongs to the LC family of seca’s electronic modules and is used to indicate a
weight value measured with the LC weight module and supplied via the module bus. The display
module also accommodates the operating elements and can process the weight (hold, tare, etc.).
Furthermore, a simple switch/jumper is provided to activate scale service.
The following block diagram shows the main function blocks of the LC display module:
Voltage
regulation
uC
LCD
Operation
Programming
interface
LC module bus
Scale
service
Sw itch
on/off
logics
Display representation
A maximum of five digits as well as some special characters can be displayed, which can appear as
shown below:
Explanation of the special characters:
Symbol
Meaning
Battery
Battery warning, operation of the scale can continue, but the batteries
should be replaced. If the batteries are not replaced and are allowed to
discharge below the next threshold, the ”bAtt“ message is displayed.
Measurements are then no longer possible.
Measuring range 1
Measuring range 1 is active.
Measuring range 2
Measuring range 2 is active.
Power supply unit
The scale is operating in power supply unit mode.
PT
PT indicates that a weight value previously saved will automatically be
subtracted from the weight value currently measured.
BMI
The BMI function is active. Once body height has been entered, the BMI
value is displayed.
