4
Logic and Relay Cards
Note:
Relay 1 is for drain alarm. Relay 2 is for Flush Timer
+5 VDC
Ground
Conductivity
NanoCond PW
A Rev G
R B W G
Drain Sensor
-
+
P S G
Meter
+
-
Flow
+
-
Level
Signal
Note 1: Contacting head water meters just use signal
and ground. The +5 VDC is used with hall effect meters.
-
Alarm Dry
Contact Output
+
Note 2: The alarm dry
contact output is normal
open. 12 VDC max be
connected to output.
Ground
Relay 1
Power Supply
Relay 2
Neutral
Hot
NeutralGroundN/O N/C
NeutralGroundN/O N/C
FUSE
FUSE
Relay 1 Out
Relay 2 Out
Power In
Powered relay
output jumper
configuration
Dry contact relay
output jumper
configuration
Relay Card
NanoTron-C Logic Card
Contrast
Adjust
Note: Use GND and N.O.
for N.O. dry contact relay or
use GND and N.C. for N.C.
dry contact relay.
1
2
3
4
5
ON
OFF
Reset
Battery
+5 VDC
Ground
Conductivity
NanoCond PW
A Rev G
R B W G
Drain Sensor
-
+
P S G
Meter
+
-
Flow
+
-
Level
Signal
Note 1: Contacting head water meters just use signal
and ground. The +5 VDC is used with hall effect meters.
-
Alarm Dry
Contact Output
+
Note 2: The alarm dry
contact output is normal
open. 12 VDC max be
connected to output.
Ground
Relay 1
Power Supply
Relay 2
Neutral
Hot
NeutralGroundN/O N/C
NeutralGroundN/O N/C
FUSE
FUSE
Relay 1 Out
Relay 2 Out
Power In
Powered relay
output jumper
configuration
Dry contact relay
output jumper
configuration
Relay Card
NanoTron-C Logic Card
Contrast
Adjust
Note: Use GND and N.O.
for N.O. dry contact relay or
use GND and N.C. for N.C.
dry contact relay.
1
2
3
4
5
ON
OFF
Reset
Battery
FUSE
Relay 1
Ribbon
Cable
Relay 2
Power In
H N G
FUSE
POWER SUPPLY
RELAY 1
RELAY 2
Dry
GND
GND
Hot
Dry Hot
NeutralGroundN. O.N. C.
NeutralGroundN. O.N. C.
GND
Dry Hot
Relays can be a dry
contact by changing
the jumpers and
connecting to Ground
and either N.O. or N.C.
Relay
1
Relay
2
Relay Card for W Option
CAUTION
1. There are live circuits inside the controller even when the power switch on the front panel is in
the OFF position. Never open the front panel without first disconnecting power from the outlet.
Prewired controllers are supplied with an 8 foot, 18 AWG power cord with USA style plug. A #1
Phillips driver is required to open the front panel.
2.
Low voltage signal wires (probes, flow switch, water meter, etc.) should never be run
in conduit with high voltage (like 115VAC) wires.
3.
Never attempt to land connections to the controller without first disconnecting power from the outlet.
4.
Do not block access to disconnect power during mounting and installation.
5. The controller should be connected to its own isolated circuit breaker, and for best
results, the ground should be a true earth ground, not shared. Any attempt to bypass the grounding
will compromise the safety of users and property.
6.
The electrical installation of the controller must be performed by trained personnel only and
conform to all applicable National, State and Local codes.
7.
Operation of this product in a manner not specified by the manufacturer may result in damage
to equipment or persons.
8.
Avoid mounting in locations that expose the controller to direct sunlight, vapors, vibration,
liquid spills or extreme temperatures; less than 0°F (-17.8°C) or greater than 120°F (50°C).
EMI(electromagnetic interference) from radio transmissions and electric motors can also cause
damage or interference and should be avoided.
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