Hello,
When I use the PCSGU250 with Laptop ( without power supply 220 VAC, only internal battery) then measure on original ADC is OK (0-0,2 DC Volts).
- Original ADC - it’s device that is powered from 220 VAC
*PCSGU250 is connected to original ADC (to analog signal) for check.
But when I connect Laptop to 220 VAC (power supply unit:220VAC/19VDC) then measure on original ADC is constant = 0.03 VDC Volt - is not correct, it does not change. Same situation with Desktop computers.
I need Galvanic isolation of the power supply by USB ? or What ?
What do you recommend for me ?
Thank you for help.