Specifications; System Block Diagram - Intelligent AXM-1500 Maintenance Manual

2. SPECIFICATION

2.1 SYSTEM BLOCK DIAGRAM

E+
LOAD E-
CELL S+
S-
Description:
When a mass is placed on the platform, the load of the article is applied
to the load cell inside it.
The resistance to the excitation current in the strain gauge will then
changed and the analog output signal varies.
It is amplified and digitized continuously by the A/D converter into
a digital signal. Subsequently, the resulting count is processed and
managed by the CPU. The CPU refers to the instructions from the keyboard,
and then conveys the output data to LCD driver, which formats the data
into readout on the display panels.
A/D UNIT
POWER SUPPLY:
AC ADAPTOR
(9V/500mA)
RECHARGEABLE
BATTERY (6V 4Ah)
LCD
LCD DRIVER
CPU
with ROM
KEYBOARD
(4 KEYS)
INTERFACE
3