請問ESR Meter 使唔使 cal?
lm250 發表於 2012-6-7 22:22 
引述原作者:只需簡單調校兩隻可變電阻。
"The adjustment is relatively simple. After switching on the device, the test leads are held together. The trimmer R21 is now set so that the display reads zero. Then, a resistance 10 to 18 ohms, the value of her should be known as accurately as possible, connected and calibrated the display with R25 to that value. " |