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hello this is Ramsey from ac/dc Marine
egg today we are going to show you the
difference between two different type of
gauges both of them the oil pressure
gauges both of them 0 to 80 psi but one
of them is a VB or steyr which it means
European homage 10 to 180 on then the
other one it has American made a gauge
over here also and it has the other set
which is 240 33 on how do you know the
difference between both gauges is very
straight symbol if we take this gauge
over here and we have 12 volt for
example and this is my 12 volt over here
[Applause]
now any gauge in the world has 3
different terminals in the back of it
the first one which is we call it ground
so we are going to attach the ground
over here into the back of the gauge
then it has something say I H is for
ignition so we have I for ignition
now this gauge is ready to go how we
gonna test it was the most simple thing
you can ever have regular cheap light
system like this that was the light bulb
filament now what you do is you put the
light bulb on the negative side and the
other side of the light bulb of course
if we touch it too hot it will light up
but now if we light if we touch it to
where it's a sense sensor wire or the
sensor only three wires no confusion it
is black for ground and there is red for
I which is ignition and a sensor now I'm
going to touch the sensor and look what
happen the actual gauge itself the
actual lever moved forward that means
that it is the Stuart Warner so you have
ground in the other end of this you
touch the sensor and it's going to go
forward now we're going to test another
gauge that that's a video homage we are
going to connect engage this is another
gauge that we also make here and we are
going to connect it
to the correct wires so we have positive
and negative and we are going to take
the negative again through the same
thing and attach it to the sensor wire
which should happen in this case is this
wife now we will attach the wire to the
sensor if you notice that the actual
gauge the lever is going backwards so
it's going from high to low the other
gauge went from low to high
so from high to low when you connecting
the edge that means it has a video style
10 to an ATM now we're going to test
both gauges and how they work
we're not going to use this light tester
anymore you're going to lose the right
correct thing I have made here a small
type of a sweat see that it has not like
sweaty little but it has different image
on it we are going to hook up one part
to the ground and the other part to the
sensor wire which is this wire will be
here now at 0 fault let us connect one
more wire then you guys can see better
which is the backlight now it's in 0
when it's connected then you have 10 on
33 on 48 on 75 ohm 90 on 120 ohm 150 ohm
and let's keep going all the way 280 on
which is touched down over here to 75
psi or 80 psi that's also 0 to 5 bar
that's European reading so this gauge
will be here the lower the resistance
the less the reading or the lower the
lever total to 0 we are going to take
that connection into the other unit we
have the same thing the positive and the
negative and we are going to go to this
gauge connect negative to negative and
positive to the ignition and it's not in
theory but that just only 12 volt and
we're going to connect the resistor box
over here into
the sense for wife now we are in zero on
the actual gauge needs 233 ohm to be at
zero and the lower the homage the higher
the PSI so these gadgets are real work
that's why they call it 240 33 so it
starts at 240 are actually 240 on you
would read exactly zero and the homage
it goes down all the way to 33 ohm
that's when you read it at full 80 psi
or 5 bar that is the difference between
European reading which is 10 on to 180
on and American reading which is 240 233
on thank you for listening to us which
we can see on the next gauge this
