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Amp gauge wiring?
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mrbillr Offline
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Post: #1
Amp gauge wiring?
I am having trouble figuring out the wiring for this amp gauge.
I have an amp gauge with an extrernal shunt. I got this gauge so I could mount the gauge in the cab of the truck and not run the heavy gauge wire up there too. I understood with the external shunt you can run the lighter gauge wire to the gauge.
But how does the amperage get passed on the the HHO generator if the shunt deminished the current to pass it to the gauge?
The gauge I have now you simply put it inline on the positive wire between the relay and the HHO generator. I would think if you put a shunt inline then the generator will only get about 1/10 the voltage which means the HHO production goes to nothing.

Anybody help clear this up for me?

Thanks,
MrBill

MrBill
2008 f250 XLT 6.4 diesel 2x4 automatic extended cab
11-10-2008 08:40 AM
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AlexR Offline
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Post: #2
RE: Amp gauge wiring?
mrbillr Wrote:I would think if you put a shunt inline then the generator will only get about 1/10 the voltage which means the HHO production goes to nothing.

The shunt is only a small resistance so the voltage drop for a load is negligible. It is a calibrated resistor. The meter does read the voltage difference across the shunt and converts this to read on a meter as current flow.

Alex

Cool Flame, LLC
http://www.cool-flame.com
11-10-2008 12:20 PM
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colchiro Offline
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Post: #3
RE: Amp gauge wiring?
Alex is correct. The shunt is a good idea for the reasons you mentioned. Keeping the high-current wires short helps to keep costs down and the voltage drop to a minimum.

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
11-11-2008 09:35 AM
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mrbillr Offline
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RE: Amp gauge wiring?
colchiro Wrote:Alex is correct. The shunt is a good idea for the reasons you mentioned. Keeping the high-current wires short helps to keep costs down and the voltage drop to a minimum.

I know what it is for and why, I want to know how to wire it into the system. My shunt is external to the gauge.
Wire a to b, b to c, c to d. I don't know how to wire it.

MrBill
2008 f250 XLT 6.4 diesel 2x4 automatic extended cab
(This post was last modified: 11-11-2008 11:31 AM by mrbillr.)
11-11-2008 11:30 AM
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colchiro Offline
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RE: Amp gauge wiring?
You system should be similar to this:

+12v battery --- fuse/breaker --- relay --- shunt (use large screws) --- cell --- ground

Small screws from shunt will go to your meter.

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
11-11-2008 01:21 PM
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mrbillr Offline
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Post: #6
RE: Amp gauge wiring?
colchiro Wrote:Small screws from shunt will go to your meter.


Ahhh, this was the small piece of information I was missing. Thank you very much!!!!!

MrBill
2008 f250 XLT 6.4 diesel 2x4 automatic extended cab
11-11-2008 10:10 PM
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colchiro Offline
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Post: #7
RE: Amp gauge wiring?
Let us know how it works.

Rick

Links: Documents / Tuning for Mileage | Toyota Sensors | Autoshop Sensor Tutorials
11-12-2008 03:49 PM
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