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See what you've driven me to?
Yes, I agree, but to get the ranges to match a divider network may be needed (i.e. if the meter starts at 0 but the sensor was meant
for a meter starting at 100). The divider would allow shifting that low point...
Al
_____
From: julie@xxxxxxxxxxxxxxxxxx [mailto:julie@xxxxxxxxxxxxxxxxxx]
Sent: Monday, October 22, 2007 4:26 PM
To: Allyn; roccit_53@xxxxxxxxxxxxxxxxxxxxxxx; scirocco-l@xxxxxxxxxxxx
Subject: Re: See what you've driven me to?
Allyn, the meters are ameters. a resistor in series (the sensor) limits the current there by moving the meter according to the
amperage drawn.
At least thats how the mki and MKII meters work
>-----Original Message-----
>From: Allyn [mailto:amalventano1@xxxxxxx]
>Sent: Monday, October 22, 2007 01:04 PM
>To: roccit_53@xxxxxxxxxxxxxxxxxxxxxxx, scirocco-l@xxxxxxxxxxxx
>Subject: RE: See what you've driven me to?
>
>Cathy,
>
>If you can get me any kind of specs on both ends of what you're trying to connect, I'll whip you up a circuit that interfaces
>between the two. It will likely require a voltage divider of some sort, as opposed to just one resister in series.
>
>Al
>
>> -----Original Message-----
>> From: C Boyko [mailto:roccit_53@xxxxxxxxxxxxxxxxxxxxxxx]
>> Sent: Sunday, October 21, 2007 10:13 PM
>> To: scirocco-l@xxxxxxxxxxxx
>> Subject: See what you've driven me to?
>>
>> Yeah, it's become a geek-fest in my garage. I just got in
>> from trying to get my dash water temp guage to work. The
>> problem is the ABA sensor and the MkI gauge don't play nice,
>> the guage pegs at hot. So I'd tossed in the largest resistor
>> I had and that pegged it at rest position. Which it never
>> moved from. So something between nothing and 1000 ohms is
>> right. So I ask the kid (he's gotta be good for something),
>> he's got a potentiometer handy, likely from a helicopter. So
>> here I am after twisting the dial and boiling water to
>> immerse a spare sensor in, and it's still not perfect, but
>> I'm closer. 150 ohms seems to be what's called for. Of course
>> that means adding up about six resistors in series. When I
>> got the 16V a few years back, I didn't even know how to
>> disconnect the battery cables. The other projects today were
>> washing three cars (Bug/Klaus/Mustang, don't ask), getting a
>> spare engine and tranny into a spot where I didn't keep
>> knocking my shins on them, and figuring out fitment for
>> battery relocation and the cutoff switch to go with it. All
>> the piddly shit takes so much time! It was a beautiful fall
>> day for it though. Hope you all had good weekends.
>> cathy
>>
>>
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>
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