13
3.4.4 O
2
input/output terminals (option)
This is the input/output terminal for the standard type O
2
analyzer.
The wiring method is as follows.
O
2
input/output terminal block
<Instantaneous value output>
Instantaneous value of 0 to 1V DC or 4 to 20mA DC is outputted.
<O
2
analyzer input signal>
O
2
analyzer signal of 0 to linear 1V DC is inputted.
<O
2
conversion output>
O
2
conversion instantaneous value is outputted with preset conversion reference value.
<Upper limit alarm contact output> (option)
When upper limit is exceeded, terminals
⑮
and
⑯
turn from ON to off and
⑯
and
⑰
turn from OFF to
ON .
1c contact 250V AC, 2A (resistive load)
<Lower limit alarm contact output> (option)
When signal is below lower limit, terminals
⑱
and
⑲
turn from ON to OFF and
⑲
and
⑳
turn from OFF
to ON .
1c contact 250V AC, 2A (resistive load)
<Range identification contact output> (option)
Terminals
⑪
and
⑫
are conductive when 1st range is selected:
⑪
and
⑫
are open when 2nd range is
selected.
1a contact 250V AC, 2A (resistive load)
<Remote range input> (option)
1st range is selected when 5V DC is inputted to terminals
⑬
and
⑭
; 2nd range is selected when there is
no input to terminals
⑬
and
⑭
.
1
11
12
13
14
15
16
17
18
19
20
2
3
4
5
6
7
8
9
10
Instantantaneous value
output signal
0 to 1V DC or
4 to 20mA DC
O
2
analyzer input
signal
0 to 1V DC
O
2
converted value
output signal
(1st component)
0 to 1V DC or
4 to 20mA DC
O
2
converted value
output signal
(2nd component)
0 to 1V DC or
4 to 20mA DC
Upper limit alarm
contact output
(option)
Range identification
contact output (option)
Remote range
input (option)
Lower limit alarm
contact output
(option)
