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Mounting:
The gauge requires a round hole 2-1/16" in diameter. It should be inserted into the opening from the front
and the U-clamp will be installed from the back. Tighten the two nuts on the U-clamp so that the gauge is secure.
Gauge depth to the back of the case is 1-1/2". Gauge depth including the mounting studs is 2-3/8".
POWER
Connect the red wire from the main harness to accessory power from the ignition switch. This will light up
the display. Connect the white/red wire from the main harness to constant 12 volt power. This will keep the time
while the key is off.
Never connect this to a battery charger alone. It needs to have a 12 volt battery connected to it. Battery
chargers have an unregulated voltage output that will cause the gauge to not operate properly.
GROUND
The black wire is the main ground for the gauge. A poor ground connection can cause improper or
erratic operation. The black wire loops over to the top screw on the back of the case. This ensures a good case
ground connection.
NIGHT DIMMING
Your display system has a dimming feature that dims the display intensity. Normally the system is at full
brightness for daytime viewing. When the blue wire has 12 volts the display intensity will be reduced. Connect
this to a park light or tail light circuit, then whenever the headlights are on the display will dim. To have the
system at full brightness all of the time, leave the blue wire disconnected.
TEMPERATURE SENSOR CONNECTION
The sender must be Dakota Digital part SEN-15-1. Sending units from other manufacturers will cause
incorrect readings. The red wire on the sensor connects to the gray wire on the clock. The black wire connects
to the black wire or the case of the clock.
The sensor will measure the temperature where its probe is located. The sensor has a 12' two wire cable
to connect it to the gauge. This cable can be shortened or additional wire can be added. If additional wire is
added, the added wire pair should be twisted and polarity of the wires should be carefully noted. If the probe
temperature is below -39° the display will show "—". If a sender is not connected properly, the display will show
" – ". If the SND terminal is shorted to ground, the display will show "---".
For the outside temperature sensing, the best location will be in the front grill or another location at the
front of the vehicle where it will have good air flow while the vehicle is moving. Do not mount the sensor too close
to the engine or exhaust. Doing so will cause the temperature reading to be much higher than the actual outside
temperature. Please note that with the sensor mounted in the front grill the temperature will be very accurate
while the vehicle is moving, but the temperature will rise when the vehicle is sitting still. This is due to the engine
heat radiating forward. The air temperature gauge will operate and read correctly between the temperature range
of -39 - 255° F (-39 - 125°C).
COMPASS SENSOR CONNECTION
The 3-pin connector from the sensor mates to the 3-pin connector from the display harness. The sensor
needs to be mounted with the two mounting tabs down. It should be mounted as flat as possible to make sure it
can provide accurate readings. Do not mount it next to any high current wires or electric motors since they may
cause incorrect readings. The higher in the vehicle it can be mounted, the more accurate the readings will be.
The compass will display one or two letters to indicate the current direction the sensor is pointed. Large steel
objects such as bridges can cause incorrect headings. If the compass detects a disturbance it will freeze the
current heading and highlight the display. If the compass display is always highlighted, even in open areas, then
the compass will need to be calibrated. This is described in the "Setting the time and calibrating gauge" section.
front
cable
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