3 - 10
INZ-TN2ZKJ-E
(1) Analog output signal (AO): terminal block 1
q
to
@0
, terminal block 2
e
to
y
Output signal:
4 to 20 mADC or 0 to 1 VDC (selected when ordering)
Non-insulated output
Allowable load: 4 to 20 mADC, 550
Ω
or less
0 to 1 VDC, 100k
Ω
or less
•
Analog output is provided from each terminal corresponding to the channel displayed in the
measurement screen.
All of analog output signals for the instrument are not isolated. It is recommended to isolate
signals individually to prevent interference from unnecessary signals or to prevent external
interference.
(2) O
2
sensor input: terminal block 2
q
–
w
Input signal:
External zirconia O
2
analyzer:
Zirconia O
2
sensor signal (Fuji ZFK7 output)
External O
2
analyzer:
0 to 1 VDC (DC input resistor of 1M
Ω
or more)
•
It is used when the external zirconia O
2
analyzer or external O
2
analyzer is specified as order.
•
To connect to the output of the external Zirconia analyzer or external O
2
analyzer prepared
separately.
•
In case of an external O
2
analyzer, input a signal of 0 to 1 VDC with respect to O
2
full scale
of the analyzer.
•
In case of built-in O
2
analyzer, do not use the terminals.
O
2
sensor input is not isolated. It is recommended to isolate when an external O
2
analyzer is
installed apart from this analyzer.
(3) Contact input (DI): terminal block 2
!1
to
@0
, terminal block 3
t
to
!0
•
It is for a contact input at no voltage. An input is provided when switching to short circuit
(on) or open (off).
•
No voltage is applied to the terminals.
(4) Contact output (DO): terminal block 3
!1
to
@0
, terminal block 4 and terminal block 5
•
Contact rating:
250VAC/2A, load resistance
•
An output is for a relay contact output. An output is provided when switching to conductive
(on) or open (off).
Wiring of analog output signal, O
2
sensor input and contact input should be fixed separately
from the wiring of power supply and contact output.
Note) To avoid the effect of noise generated from external units, be sure to ground the
analyzer main unit. Continue between the I/O module mounting plate and the panel
and connect the panel casing to the same ground as the analyzer.
