Voltage divider:
  * 771 gives 240V instead of 233V
  * 731 gives almost OK values
  * 721 gives 231V instead of 235V
  * 701 gives 223V instead of 233V
  * 661 gives 206V instead of 233V

Current resistor:
  * 0.00131 gives 0.176A-0.179A for 0.177A
  * 0.00130 gives too high amperage 0.178A-0.180A instead of 0.177A
  * 0.00125 gives too high amperage 0.185A instead of 0.177A
  * 0.00120 gives too high amperage 0.190A instead of 0.177A
  * 0.00115 gives too high amperage 0.200A instead of 0.177A
  * 0.00110 gives too high amperage
  * 0.00100 gives too high amperage