O
1/27/2021
Kele, Inc. • 3300 Brother Blvd. • Memphis, TN 38133
Example wiring diagrams for relay connection
Figure 5. To wire the
Warning/ventilation
outputs:
1.
Determine if the device being attached to the relay
output should be wired in NO or NC configuration.
2.
Unplug the relay output screw terminal.
3.
Connect a supply voltage for the device being attached
to the controller’s relay output to either the
location of the screw terminal (
4.
Wire the power input of the device being attached to
the controller’s relay output to the
screw terminal.
5.
Plug the relay output screw terminal back into the
correct location on controller board.
3.3
P
OWER
C
ONNECTION
The K-O2 has a fully isolated, unpolarized
AC or DC operating power can be connected in either polarity.
transformer (up to its load limit) even when they are not connect
hot/common polarity.
Power connection to the controller is made at the two
screw connector located at the bottom
(highlighted in Figure 6). Power to the controller can be either
AC or DC voltage; DC voltage can be connected in either polarity
(see
Section 1.0
for more details). To wire power:
1.
Open the controller’s enclosure and unplug the screw
terminal labeled
POWER
on the controller board.
2.
Attach power wires to the screw terminal ensuring the
connection is snug.
3.
Plug the screw terminal back into the
receptacle on the controller board: this will cause the
controller to power up and begin operation.
It is recommended that all wired connections are made prior to
providing power to the controller.
OS-2 Oxygen Sensor
Kele, Inc. • 3300 Brother Blvd. • Memphis, TN 38133
Figure 6
: Location of Power Terminal
s for relay connection are provided in
ventilation
and
Alarm
relay
Determine if the device being attached to the relay
output should be wired in NO or NC configuration.
Unplug the relay output screw terminal.
voltage for the device being attached
to the controller’s relay output to either the
NO
or
NC
location of the screw terminal (see Figure 4).
Wire the power input of the device being attached to
the controller’s relay output to the
COM
location of
Plug the relay output screw terminal back into the
correct location on controller board.
ONNECTION
O2 has a fully isolated, unpolarized power input; either
be connected in either polarity. Multiple K-O2 units can operate on the same
transformer (up to its load limit) even when they are not connected with the same positive/negative or
Power connection to the controller is made at the two-terminal
screw connector located at the bottom-right side of the board
). Power to the controller can be either
AC or DC voltage; DC voltage can be connected in either polarity
for more details). To wire power:
Open the controller’s enclosure and unplug the screw
n the controller board.
Attach power wires to the screw terminal ensuring the
Plug the screw terminal back into the
POWER
on the controller board: this will cause the
controller to power up and begin operation.
It is recommended that all wired connections are made prior to
FIGURE 5:
Example Wiring Diagram for Normally Open
Operation
Page 4 of 14
Location of Power Terminal
O2 units can operate on the same
ed with the same positive/negative or
Example Wiring Diagram for Normally Open
