Instruction Manual

www.Aquametrix.com    978-749-9949 Tollfree-855-747-7623(855-pHProbe)
Model LL3, LL4, LL7 and LL7H External Wiring Diagrams
by
Water Analytics
Aqua
Metrix
AccessoriesandElectrodes
LL3PluginRelayBase
LL4PluginRelayBase
LL7PluginRelayBase
LL7H-
Terminal 9 is used for NW, the neutralizing wire.
GROUND
120V AC - (+)
120V AC - (-)
TANK (OR ELECTRODE)
SHORT ELECTRODE
LONG ELECTRODE
RELAY 1
Must be wired to power terminals
or have external power source.
CONTROLLER POWER
LEVEL ELECTRODES
RELAY 2
Must be wired to power terminals
or have external power source.
1
2
3
4
5
6 7
8
9
10
11
12
AUX. NORMALLY CLOSED
AUX. NORMALLY OPEN
AUX. COMMON
PUMP COMMON
PUMP NORMALLY OPEN
PUMP NORMALLY CLOSED
GROUND
120V AC - (+)
120V AC - (-)
TANK (OR ELECTRODE)
SHORT ELECTRODE
LONG ELECTRODE
RELAY 1
Must be wired to power terminals
or have external power source.
CONTROLLER POWER
LEVEL ELECTRODES
1
2
3
4
5
6 7
8
9
10
11
12
PUMP COMMON
PUMP NORMALLY OPEN
PUMP NORMALLY CLOSED
NOT IN USE
GROUND
120V AC - (+)
120V AC - (-)
TANK (OR ELECTRODE)
SHORT ELECTRODE
LONG ELECTRODE
RELAY 1
Must be wired to power terminals
or have external power source.
CONTROLLER POWER
LEVEL ELECTRODES
RELAY 2
Must be wired to power terminals
or have external power source.
1
2
3
4
5
6 7
8
9
10
11
12
AUX. NORMALLY OPEN
AUX. COMMON
PUMP COMMON
PUMP NORMALLY OPEN
PUMP NORMALLY CLOSED
NOT IN USE
LP3-20 - Three Electrode holder with 20’ of
shielded cable, 1-1/4MNPT adapter
LP3F-20 - Optional mounting ange included..