Hello,
what is the input impedance of the 0..10V analog inputs?
Why can I not use a higher ohmic voltage divider than suggested in the FAQ? I like to monitor my 12V battery that supplies my system.
Thanks for any idea
Hello UTA, The input impedance of the 0..10V analog inputs is 32kOhm.
Actually, you can use a higher ohmic voltage divider, as long as you compensate for this input impedance.
You can even use only 1 resistor in series and the voltage divider will be 32k/(32k+R).
Because this solution requires a little math, we have put an analog output on our own 12V charger board, the ML-PB-SLA.
But of course 12V is bigger than the input thandles, so this board outputs 1/2 Vbat.
IF you use a 32K resistor, you have also half of the battery voltage.
@remcok Thank you. My local dealer suggested using the charger board, but will that use less power than than the analog input with 32k resistor?
