VDO senders

andypipe
Posts: 19
Joined: Mon Apr 30, 2012 1:34 pm

VDO senders

Postby andypipe » Tue May 01, 2012 1:14 pm

I have purchased a couple of 10 bar VDO pressure senders for my DL1 and know they have to be calibrated.
My questions are, do they need a pull up resistor, and if so what ratings, and does anyone have the calibration data in PSI

Many thanks

924RACR
Posts: 113
Joined: Tue Jul 13, 2010 5:34 pm
Location: Royal Oak, MI
Contact:

Postby 924RACR » Tue May 01, 2012 6:12 pm

I'm running a VDO 10bar sender for the oil pressure, came up with the following cal with the standard pull-up resistor (think it's 1kOhm, whatever's shown in the instructions on the website):
3.81 * x^3 + 2.95 * x^2 + 9.09 * x - 0.38

That should pretty much drop in copy/paste into the variable editor (was generated from measurements/table of values)...

HTH...

Oh, I should add, that's for values in bar...

andypipe
Posts: 19
Joined: Mon Apr 30, 2012 1:34 pm

Postby andypipe » Tue May 01, 2012 6:30 pm

924RACR wrote:I'm running a VDO 10bar sender for the oil pressure, came up with the following cal with the standard pull-up resistor (think it's 1kOhm, whatever's shown in the instructions on the website):
3.81 * x^3 + 2.95 * x^2 + 9.09 * x - 0.38

That should pretty much drop in copy/paste into the variable editor (was generated from measurements/table of values)...

HTH...

Oh, I should add, that's for values in bar...

Thanks for that. How will I convert to psi

924RACR
Posts: 113
Joined: Tue Jul 13, 2010 5:34 pm
Location: Royal Oak, MI
Contact:

Postby 924RACR » Tue May 01, 2012 8:27 pm

14.7psi = 1 bar for typical values of g ;)


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