for ne one who has dakota digitals didi you have any trouble with them reading off mine read exacly 25 psi off im using the 400 psi senders and i jsut have 3 setup because i jsut have the front bagged, i have switched a few around and it didnt change
Dakota Digitals Question
Texas Xtreme
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for ne one who has dakota digitals didi you have any trouble with them reading off mine read exacly 25 psi off im using the 400 psi senders and i jsut have 3 setup because i jsut have the front bagged, i have switched a few around and it didnt change
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are you sure you set up the unit for the 400 psi senders?
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yes
in the dakota digital instruction sheet it says that the 400psi senders can be 16 psi off with the gauge and sender combined. which is close to your problem plus we have had a truck leave the shop and wanted 400psi senders and his are off about that much so not much to do about it. but we all know that 16psi on a air setup is pretty big difference but oh well what can you do??? thats why i only like to use the 150psi senders on valves and run a seperate gauge for tank pressure.Texas Xtreme said:
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16PSI? Does that mean that it is 16PSI off all the time, or at sometimes it might be only 8PSI off, and sometimes it might be right on??dysinger1 said:
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that would explain why mine are off almost the same amount.
is it constant at 16?
i dont want to align my truck at a certain pressure and never be able to get that pressure again because the guage changes.
is it constant at 16?
i dont want to align my truck at a certain pressure and never be able to get that pressure again because the guage changes.
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that kinda pisses me of bc i spend so much on these i mean there cool as hell but i kew they would be off but dam 25 psi is alot and mine is constitenlty off
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Yup, same here. And when the beat is up, the pressures fall a good 10+ psishift350 said:
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has ne one given dakota a call and asked wtf is going on i was gonna but if its summin i cant fix then it would be wrthless to call
My tank gauge is 10-14 psi off. That really pissed me off at first. I've got the ARC 1000 4 way bag controller so it was not cheap, you would expect the bag senders to be right on.
To fix it:
Check the resistance across the terminals on the tank sender at 0 psi and the psi that your pressure switch turns the comp off. This will give you the rate that the increasing pressure changes the resistance.
(((resistance at pressure switch cut off)-(resistance at 0 psi)/psi at pressure switch cut off)*25)=value of resistor to increase gauge reading by 25psi.
Put a resistor with that value in line with the sender wire or ground wire. That should adjust the psi reading shown on the gauge. This will cause 0 psi to read as 25, so it really only works with the tank sender because that should never read 0 if your pressure switch works.
I just thought all that shit up, I am going to do it on mine as soon as I can
To fix it:
Check the resistance across the terminals on the tank sender at 0 psi and the psi that your pressure switch turns the comp off. This will give you the rate that the increasing pressure changes the resistance.
(((resistance at pressure switch cut off)-(resistance at 0 psi)/psi at pressure switch cut off)*25)=value of resistor to increase gauge reading by 25psi.
Put a resistor with that value in line with the sender wire or ground wire. That should adjust the psi reading shown on the gauge. This will cause 0 psi to read as 25, so it really only works with the tank sender because that should never read 0 if your pressure switch works.
I just thought all that shit up, I am going to do it on mine as soon as I can
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but u layed down like 700 buxs for your it crazy that these things are so far off
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sounds like Dakota Digitals arent worth it...
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i thought thay would be good so i got them but now im switching because its lame to be roling around and not know wtf is going on with you air pressures i got a good price on them but im still up set at the fact that not tomay people posted any thing on this b4 i got them but you live and learn its only moneyLowsonoma03 said:
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IMO, the pressure only seems to be off when the comps are on and filling (If i want to ride at 70PSI, I put it up to around 80-85 PSI because it lets out some air ... my 145 pressure switch lets it go to 150, then lets some out to about 138... when it lets off that 12PSI of air, it lets it out of the bags somehow.... or the PSI in the bags are just off cuz the tank is filling)
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ok duno if this is going to help but I had digital for a while what I did was
Put a 12 VDC regulator on the power side of the guage (keeps constant 12V no matter if truck is running or not. and I attached all the grounds of the sendors together then ran one wire to the frame I made shure all the length wire for the sendors was the exact same length ,... this got me to about 3-4 psi off much better
hope this helps.
from what I remember is it (the guage) mesures the change in resistance in referece to ground for PSI so if your ground is longer on one then the oulther that will change the resistance and there fore the PSI.
Put a 12 VDC regulator on the power side of the guage (keeps constant 12V no matter if truck is running or not. and I attached all the grounds of the sendors together then ran one wire to the frame I made shure all the length wire for the sendors was the exact same length ,... this got me to about 3-4 psi off much better
hope this helps.
from what I remember is it (the guage) mesures the change in resistance in referece to ground for PSI so if your ground is longer on one then the oulther that will change the resistance and there fore the PSI.
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