Race Technology

Previously you'd indicated that the formula built into the configuration and analysis software was wrong and to use the formula in the knowledge base.

You have updated the knowledge base to have a formula that cannot be entered into a Dash2 configuration software as stated.

Please fix the KB. Also, the dates in the history of the KB cannot be right. I'd check the system clock on that server.

Thank you.

-Kyle

From the KB:
Equation to convert from a voltage to a pressure

Note that if you are connecting the sensor to a DASH2, then the equation can be simply selected from the drop down list in the configuration software. Similarly, if the sensor is to be attached to a DL1/DL2 then the equation can be simply selected from the relevant section in the variable manager of the analysis software. These equations are just included for completeness, or in case the sensor is going to be used with a 3rd party product.
Pressure [Bar] = ( ( ( input - 0.58) / 4 ) * 250 )
Pressure [PSI] = ( ( ( input - 0.58) / 4 ) * 250 ) * 14.5

I'm not sure I see a problem:

Pressure [Bar] = ( ( ( input - 0.5) / 4 ) * 250 )
Pressure [Bar] = (input - 0.5) * 62.5
Pressure [Bar] = 62.5 * input - 0.5 * 62.5
Pressure [Bar] = 62.5 * input - 31.25

No?

The format of formulas in the documentation should match the format of formulas in the software.

Asking your customers to factor the formulas is doing it wrong.

But since that seems to be the order of the day and since I'm a PSI guy ....

Pressure [PSI] = ( ( ( input - 0.5) / 4 ) * 250 ) * 14.5
Pressure [PSI] = (input - 0.5) * 906.25
Pressure [PSI] = 906.25 * input - 0.5 * 906.25
Pressure [PSI] = 906.25 * input - 453.125

Which puts you right back at the flawed old formula from the drop down menu!!!!!!!!!!!!!!!!!!!!!!!!!!!


The formula that most often produces a zero result at zero pressure is:
906.25*x - 548.625

-Kyle

Hi,

The equation on the KB here:

http://www.race-technology.com/wiki/ind ... librations

and

http://www.race-technology.com/wiki/ind ... kePressure

is:

Pressure [Bar] = ((( input - 0.58) / 4 ) * 250 )

In the current analysis software the equation is:

62.5 x input -36.25

which is the same, and in DASH config software it is also:

62.5 x input -36.25

Which all matches... so either I'm being thinck and completely missing your point (entirely possible), or maybe you have an older version?

Kind regards,

RT support.