Manual # 650338
Back View of Gauge
Dim Input (active high +12V)
BLUE wire
Switch Input (active high +12V)
GREEN wire
Optional momentary
push button switch
Connect to main
chassis ground
+12V
KEY ON POWER
Sender Terminal
+12V
KEY ON POWER
+12V
KEY ON POWER
Optional toggle
switch
Optional Dakota Digital
OIL PRESSURE SENSOR
Ground
If you are installing multiple MCL-3K gauges, you can tie the GREEN wires together and then to
one switch. The same is true for the BLUE wire, wire all of them to one switch.
If you have an MCL-3K Tachometer, it will
actually serve as the dimming “switch”. The BLUE
wire on any of the MCL-3K Tachs will provide a +12V output for the dimming function. The gauge has a
light sensor behind the lens and when the ambient light is dim or low it will “turn on” the output and
12V to the BLUE wire. You will not need to wire in a toggle switch if you have an MCL-3K
tachometer and choose to wire it this way.
Back View of Gauges
Dim Input (active high +12V)
BLUE wire
Switch Input (active high +12V)
GREEN wire
Optional momentary
push button switch
+12V
KEY ON POWER
+12V
KEY ON POWER
Optional toggle
switch
Continue wiring to other
MCL-3K gauges
GAUGE SETUP
The oil pressure gauge setup has options for sensor selection, update rate, and a low pressure
warning point.
YOU MUST
at least select or make sure the gauge is set for your pressure sensor or the
gauge will not read correctly.
The GREEN switch input wire, in the two pin connector, is used to enter setup. If you are only
installing one or a couple Dakota Digital MCL-3K gauges set up may seem a little strange since they are
designed to work as a set, however yo
u’ll simply cycle through a few screens to get to the desired gauge.
The table below shows what will be on the gauge with each button press, or tapping the GREEN wire
high +12V.
Speed
Tach
Oil psi Oil temp
Fuel
Volt
1
st
2
nd
3
rd
4
th
5
th
6
th
7
th
8
th
Connection shown with
optional spade terminals