33
The dual shunt is the current sensor for the
Link 20
. Its 50 mV @ 500 A rating means
that when 500 amps flows through it, 50 mV is generated across it. The millivolt signal is
translated into an amps display in the meter. For example: A 50 A load generates 5 mV
across the shunt and would be displayed as
050
amps.
Caution:
In the diagram below,
the darker wires represent primary wiring and should be able to carry full battery load
current. Size appropriately!
WIRE BY WIRE DETAIL
BATTERY COMPARTMENT
12
12
12
12
12
12
12
12
12
12
+
-
+
Battery Compartment
12
12
12
1234
1234
12
1234
1234
12
12
12
1234
1234
12
1234
1234
RED - Meter Power 12 OR 24 volts
BLUE - Bat.1 V
. Sense
2 amp fuses.
Mount within
7" of battery.
+
-
123
123
123
1234
1234
12
12
123
123
123
12345
12345
12345
12345
12345
12345
12345
12345
12345
12345
123
123
123
1234
1234
1234
123
123
123
123
123
123
DC SYSTEM
NEGATIVE
1234567890123456789012345678901
1234567890123456789012345678901
1234567890123456789012345678901
1234567890123456789012345678901
1234567890123456789012345678901
1234567890123456789012345678901
1234567890123456789012345678901
1234567890123456789012345678901
12345
12345
12345
12345
12345
12345
12345
12345
12345
ORANGE - Bat.1 Battery (- )
GREEN - Bat.1 Load
VIOLET - Bat.2 V
. Sense
YELLOW- Bat.2 Battery (- )
BROWN - Bat.2 Load
BLACK - GROUND
BAT. 2
BAT. 1
POSITIVE LEADS TO BATTERY SWITCH
123
123
123
123
123
123
ALL
LOAD
GROUNDS GO ON
THIS SIDE OF
SHUNT
4 twisted pair cable
to meter location
2 amp fuse.
Mount within
7" of battery.
Dual Shunt
50 mV @ 500 A
ABOUT TWISTED WIRE:
We strongly urge you to use the 4 twisted pair cable available through your Xantrex dealer
in order to conform to the wire colors shown on this diagram. Using standard wire colors
allows us to do a much better job of troubleshooting and will aid you should a problem
develop four, five, even 10 years from today. If you are not able to obtain this wire, make
sure the shunt sense lead pairs (Orange & Green, Yellow & Brown) are twisted 4–5 twists
per inch. Twisted shunt wires minimize noise and ensure reliable current readings.
NO OTHER WIRES
CONNECT DIRECT
TO BATTERY!