YOKOGAWA CA150 - Appendix 2 Block Diagram

Appendix
App.2-1
IM CA150E
1
2
3
4
5
6
7
8
9
10
11
12
App
Appendix 2 Block Diagram
■ Block Diagram
BATT.
12 V DC
RS232
Power source/communication port
Charge
circuit
Power
source
control
DC/DC
converter
RS232
driver
DC/DC
converter
Reg.
24V OUT
24V OUT part Measure part
Input circuit
Shunt resistance
Constant current source
AD converter
Source/CPU part
TC
R.J. INPUT
H
mA
MEASURE
L
CPU
Display
Memory
DCA DCV
Ω
Current detection
Excess current protection
Current voltage conversion
Setting
FRQ
Excess current protection
H
L
SOURCE
OUTPUT
DCV DCA
Ω
Reference voltage source
FUSE
Ω