Operation:
The gauge needs only the red and black wires connected to operate.
When the blue wire has 12 volts, it will dim the display for night viewing. The
gray wire is for the voltage monitor connection. The yellow wire will provide a
ground output when the gauge reading is outside the high or low warning limit.
Setting the warning limits:
The high and low warning limits can be set to different values. Once they
have been set, they are stored internally so that the gauge will retain the values
even when the gauge does not have any power. These values can be set and
reset as many times as desired. The procedure for setting the warning limits is
as follows:
1.
Make sure the key is off so the gauge is not powered.
2.
Press and hold the ‘SET’ button. This is located behind the hole located on
the back side of the gauge as shown in figure 1.
3.
Turn the key on while the ‘SET’ button is being held.
4.
Release the button. The gauge should show ‘LO’ and then switch to a
reading between 8.0 and 11.0.
5.
Turn the warning adjustment pot until the desired low voltage limit is showing.
The adjustment will then 3/4 rotation from stop to stop. Do not force it past
either stop.
6.
Press and release the ‘SET’ button. The gauge should show ‘HI’ and then
switch to a reading between 14.0 and 17.0.
7.
Turn the warning adjustment pot until the desired high voltage limit is
showing.
8.
Press and release the ‘SET’ button. The gauge should show ‘--’. The new
warning limits are now stored.
9.
Turn the key off. The gauge will now operate normally when powered up
again.
