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5.1.2
Wiring
Model ZR402G Separate type Zirconia Oxygen Analyzer/
Converter
Analog
output 1
4-20 mA DC
Digital output
1
2
3
FG
AO1
AO1
(+)
(-)
12
13
14
FG
DI-1
DI-2
DI-C
Contact
input 2
Contact input 1
23
24
25
DO-1
DO-1
DO-2
DO-2
Contact
Contact
output 1
output 2
*1
The protective grounding for the converter should be connected to either the protective ground terminal in the equipment or
the ground terminal on the case.
Standard regarding grounding: JIS D type (Class 3 ground), ground resistance: 100
IM 11M12A01-02E
Connect the following wiring to the converter. It requires a maximum of eight wiring
connections as shown below.
(1) Detector output (connects the converter with the detector.)
(2) Detector heater power (connects the converter with the detector.)
(3) Analog output signal
(4) Power and ground
(5) Contact output
(6) Operation of the solenoid valve of automatic calibration unit
(7) Contact input
Analog
output 2
4-20 mA DC
4
5
6
7
8
AO2
AO2
CJ
CJ
TC
(+)
(-)
(+)
(-)
(+)
15
16
17
18
19
AI
AI
AC-
AC-
(+)
(-)
ZERO
SPAN
Solenoid valve for span gas
for automatic calibration
Solenoid valve for zero gas
for automatic calibration
Flow setting unit
26
27
28
29
30
DO-3
DO-3
DO-4
DO-4
Contact
Contact
output 3
output 4
Figure 5.3 Wiring connection to the converter
9
10
11
TC
CELL
CELL
(-)
(+)
(-)
20
21
22
AC-
FG
FG
COM
31
32
33
34
35
HTR
HTR
L
N
G
100-240V AC
50/60 Hz
Separate type Zirconia OxygenAnalyzer,
Model ZR22G Detector
CELL
CELL
TC
TC
(+)
(-)
(+)
(-)
36
FG
HTR HTR
*1
or less.
5. Wiring
CJ
CJ
(+)
(-)
*1
F5.3E.EPS
5-3
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