วันอาทิตย์ที่ 9 เมษายน พ.ศ. 2560

Split phase motor check Run winding and startwinding

Split phase motor check Run winding and startwinding





Adjust the mulitimeter R x1
Use a multimeter to measure the runwinding and startwinding , choose one of motor wire to touch all three multimeter wires one by one. If the needle show when the motor wire touch any multimeter wire,so we can check the resistance,then record the resistance.  Next do the same method to the rest two wires. 



Runwinding  resistance low.
Startwinding resistance hight.


วันเสาร์ที่ 25 มีนาคม พ.ศ. 2560

Push Button Switch

Push Button Switch Check

Adjust the multimeter Rx1.
1. Check the normally open : NO.
    If the needle of the multimeter does not shows. Press at the push button switch.If the needle of the multimeter show, it meaus that the NO work normally.

                                        

                                                                   Push Button Switch 




Press at the push button switch.

2.  Check the normally close : NC
      If the needle of  the multimeter  shows. Press at the push button switch.If the needle of the multimeter does not shows, it meaus that the NC work normally.




Press at the push button switch.