#08-045 Demo Using an Oil Pressure Sensor to Control Elect

[davidrrrd]

all that work and you cant remember why!

watching this I was wondering if you were haveing a stroke! dident you want the switch to let the electrolizer run untill there was maybe 15lbs

and then shut the prosses down?

[charlieehler]

No. I was demonstrating how the oil pressure sensor could be used to turn off the system when the engine stops. The way Ford oil sensors work they either are on or off depending on pressure or not. Thus a Ford oil pressure sensure can only detect pressure thus allowing current to pass through the wire(and in turn activate the relay), but it can't detect how much pressure there is. I can only assume other makes are similar in design.

[charlieehler]

The 15Lb pressure I chose was nominal from my own experiences with engines. A typical engine will have 20-25 pounds of oil pressure when idling and I deliberately chose a low pressure(but not no pressure) to see if it would still work.

The model oil sensors I've checked will work down to aout 3-5 pounds and their design specs state 4.5 to 7. So the 15 pounds was well beyond the design specs.

I haven't got to a system that turns off the electrolyzer when a pressure buildup occurs.

[charlieehler]

That would take a device that can be set to the desired pressure attached to the electrolyzer or the feed tube. It would work like an oil pressure sensor, but an oil pressure sensor can't be set.

Sorry if the test was ambiguous. I'll go back and review it to be sure.

Charlie

PS. The 500 character limit is stupid.