I'm trying to input trans oil temp to VEMS using a VDO 323 058 sensor. I have the calibration curve.
It seems like the "custom sensor curve" ohm/volt values are fixed.
This sensor looks like this:
temp F Ohms
120 322.8
160 135
180 105.7
200 76
220 57
240 42
260 31
280 23
300 18.6
How do I edit the custom sensor curve values to fit?
Thanks
Am I correct that the analog input calibration wizard only works for liner response sensors?
I've seen references to files that can be uploaded to vemstune - is this where I need to focus?
Quote from: nmerrill on July 17, 2019, 06:27:54 PM
I'm trying to input trans oil temp to VEMS using a VDO 323 058 sensor. I have the calibration curve.
It seems like the "custom sensor curve" ohm/volt values are fixed.
This sensor looks like this:
temp F Ohms
120 322.8
160 135
180 105.7
200 76
220 57
240 42
260 31
280 23
300 18.6
How do I edit the custom sensor curve values to fit?
Thanks
ohms of the sensor means nothing, it all depends in the input pullup :) if you want properly calibrate sensor, put it in water, put thermometer there raise water temp and adjust readings accordingly..
Ok, I can test the sensor, sure. How many points are good?
But, the main issue is - can the values in the custom sensor table be altered?
Quote from: nmerrill on July 27, 2019, 07:05:41 PM
Ok, I can test the sensor, sure. How many points are good?
But, the main issue is - can the values in the custom sensor table be altered?
yes, you have to change temp values there :))) and it's in celsius :) not bullshit F :)