I use the search before but found no solution.
The Spartan2 is connected with black wire (electronic ground) to Aux input O and green wire (linear 0-5V) to signal.
Spartan2 is powered with a 12V batterie.
When I power Spartan2 the other AUX inputs get unstable and to high in values.
Is there something to ground?
Hi, black and green should be correct. Can you measure at the connector when you connect it to YourDyno and when not? Could it be some issue with two different ground potentials?
When nor conected toYourDyno there is only 0.3mV but it looks that there is some potential. When messure ist show 300mV but drop down to 0.3mV
Is YourDyno conected Voltage between 0V and Signal is 2.15V and same time oilpressure and temperatur jump up to the value they have at 2.15V
The Spartan2 was defect from the beginning.
Is there an alternative? I don't want to by another from 14point7
I get a new Spartan device for free from 14point7 (thanks)
This is working now (LED signals are as the should) but the problem is the same.
When I switch the on the Spartan my temperature and oil pressure goes up.
When I measure between the green and black wire not connected toe YouDyno there was 200mV when I connect to YouDyno I got 4.6V
When I measure the black wire to 0V on YourDyno I got 5.5V
For me I look like different potentials but whey it is working on others....I am frustrated I will not spart e´ngine and dyno when I have nor controll os mixture
i fixed the problem. Connect the black and white wires and an ocoupler Drago DK 8000, DK8000-016, Isolation Amplifier 0..5 V to 0..5V built-in. This is an industrial part, normal 200 euros, but there are more for sale on Ebay