I need a potentiometer rated at 110-5ohm if there is such a thing, because that is the range of the fuel level sender on Integras.

"Full - 2-5ohms
Empty - 105-110 ohms
This is the listing on a 98, should be the same on all 94-01 Integras"

I don't want to go out of that^ range to make sure I don't damage the fuel gauge or anything. Is there any place that I can find a specific potentiometer like that?

*edit - I'm trying to find a pot with a decent-looking easily-adjusted handle thing so that I can just crank it by hand when I want to change it.


Modified by Hatch_R at 7:30 PM 9/12/2006

 

Try to find yourself an electronics shop. Not a radio shack an actual shop.

 

http://www.mouser.com/search/P...10000
http://www.bourns.com/PDFs/3362.pdf

If you want the lowest value to be 5 ohms, stick a 5 ohm resistor in series with the pot. That will also add 5 ohms on the top end (105 ohms).

 

I dont understand, are you trying to simulate the fuel level?

sorry, me = sleepy

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 02 accord &raquo;</TD></TR><TR><TD CLASS="quote">http://www.mouser.com/search/P...10000
http://www.bourns.com/PDFs/3362.pdf

If you want the lowest value to be 5 ohms, stick a 5 ohm resistor in series with the pot. That will also add 5 ohms on the top end (105 ohms).</TD></TR></TABLE>

Thanks, I'll take a look at those sites. So if I put a 5 ohm resistor before the pot, it'll just add 5 to the min and max of the pot?

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18EG6 &raquo;</TD></TR><TR><TD CLASS="quote">I dont understand, are you trying to simulate the fuel level?

sorry, me = sleepy</TD></TR></TABLE>

Uh it's kind of a prank thing I wanna make so that I can tell my friends I'm "out of gas".

 

Also, one more "noob to electronics" question. Why is there 3 "prongs" on pots to connect wires to? The way I want to set it up, I need a prong to run the fuel sender wire to, and then another prong to ground with. What do I do with the third one?

Also, I shoulda said this in the first post, but I'm trying to find one with a decent-looking easily-adjusted handle thing so that I can just crank it by hand when I want to change it.

 

You only connect 2. Whether you connect the right 2 or the left 2 will dictate whether cw or ccw is increasing resistance. I think the smallest value pot you can get with a shaft is 1k ohm. That's 10x more than you need.

Here's how you can do it the cheap way. Run to radio shack and pick up a 100 ohm resistor and a spdt switch. Connect the switch so when it's flipped one way, it will connect the level sender to the gauge, and when flipped the other way, it will connect your grounded resistor to the fuel gauge. That way, you will have an empty setting and the actual gas level setting.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 02 accord &raquo;</TD></TR><TR><TD CLASS="quote">You only connect 2. Whether you connect the right 2 or the left 2 will dictate whether cw or ccw is increasing resistance. I think the smallest value pot you can get with a shaft is 1k ohm. That's 10x more than you need.

Here's how you can do it the cheap way. Run to radio shack and pick up a 100 ohm resistor and a spdt switch. Connect the switch so when it's flipped one way, it will connect the level sender to the gauge, and when flipped the other way, it will connect your grounded resistor to the fuel gauge. That way, you will have an empty setting and the actual gas level setting.</TD></TR></TABLE>

Yea I was already planning on using a switch, but I wanted to use a pot so I could change the value around a little so that it's not exactly the same all the time. But, I might just have to use the resistor idea instead.

Also, what does "cw or ccw is increasing resistance" mean? I don't understand the cw and ccw.

And one last thing. The link that 02 accord gave, http://www.mouser.com/search/P...10000 shows that "Resistance: 100 Ohms" so isn't that the right one that I need, or am I missing something there?

*edit - haha, I didn't realize that you are 02 accord I'm in the same situation as B18EG6, tired and with a headache. But wouldn't that pot that you showed me work? And does the "Tolerance: +/- 10 %" mean that it only adjusts 10% up and down from 100 ohm, or what?

 

cw = clockwise
ccw = counterclockwise

If you connect the left 2 pins let's say, then when you turn the pot cw, its resistance will increase. If you connect the right 2 pins, cw rotation will decrease its resistance.

The link that 02 accord provided, oh wait, that's me, lol, is the pot that you need. I was just saying that if you want a pot with a shaft (not a screwdriver adjust like in the link), the smallest value they come in is 1k ohm (I think).

The 10% tolerance means the it goes from 0 to anywhere between 90 and 110 ohms (the values of the pots vary from 90 to 110 even though they are rated at 100).

 

hehe no headache.. that comes after the drinking

Also - do you plan for the pot to totally govern the fuel level circuit, or do you plan on running the OEM sender and the pot together?


EDIT-

andddddd the edit comes during the drinking. didnt see the switch comment just beware of how you run it, you might need to factor in both resistances

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 02 accord &raquo;</TD></TR><TR><TD CLASS="quote">cw = clockwise
ccw = counterclockwise

If you connect the left 2 pins let's say, then when you turn the pot cw, its resistance will increase. If you connect the right 2 pins, cw rotation will decrease its resistance.

The link that 02 accord provided, oh wait, that's me, lol, is the pot that you need. I was just saying that if you want a pot with a shaft (not a screwdriver adjust like in the link), the smallest value they come in is 1k ohm (I think).

The 10% tolerance means the it goes from 0 to anywhere between 90 and 110 ohms (the values of the pots vary from 90 to 110 even though they are rated at 100).</TD></TR></TABLE>

Oh haha, ok that explains it. Is there any kind of pot on that site that goes from 0-110 ohm instead of 90-110? If not then I'll just settle on the 105 ohm resistor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Hatch_R &raquo;</TD></TR><TR><TD CLASS="quote">Is there any kind of pot on that site that goes from 0-110 ohm instead of 90-110?</TD></TR></TABLE>

That's what I meant. You might get one pot that goes from 0-90, or you might get another that goes from 0-110 (that's the 10% tolerance). Previously I said it goes from 0 to that range. Didn't think it would be that confusing. Hopefully I made it clearer this time.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 02 accord &raquo;</TD></TR><TR><TD CLASS="quote">

That's what I meant. You might get one pot that goes from 0-90, or you might get another that goes from 0-110 (that's the 10% tolerance). Previously I said it goes from 0 to that range. Didn't think it would be that confusing. Hopefully I made it clearer this time.</TD></TR></TABLE>

Oh yea that makes sense, I just don't know much about electronics.