I/O Conversion Characteristics - LG G3F-AD3A User Manual

Chapter 2. SPECIFICATIONS

2.4 I/O Conversion Characteristics

Input / Output (hereafter I/O) conversion characteristics are expressed with the angle of the line between
analog input(voltage and current) and matched digital value.
I/O conversion characteristics of the G3F-AD3A, G4F-AD3A are expressed with Fig 2.1, and I/O conversion
characteristics of the G6F-AD2A is expressed with Fig 2.2
The voltage or current input for a channel is selected by analog input selection switch and the value of
Offset / Gain can not be changed because it is fixed.
Digital
Output
Value
Analog
Input
REMARK
1. The analog output value of over 4047 or –48 is fixed as 4047 or –48.
2. Keep the input voltage and current not to exceed +15V and 25mA.
4047
4000
3000
2000
1000
0
-48
-0.12V
0V
DC 0 ~ 10V
0.952V
DC 1 ~ 5V
1V
3.808 ㎃
DC 4 ~ 20
4
㎃ ㎃
[Fig 2.1] I/O Conversion Characteristics
2 - 7
Practical analog input range
5V
3V
12 20
㎃
10.12V
10V
5.048V
5V
20.192 ㎃
㎃