Simple SCR/Triac Tester unit
Universal Rectifiers model # URK230504


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Step 1: Check SCR for short.

Connect one end of Jumper Lead #1 to Simple SCR/Triac Tester - Cathode Terminal and the other end to the cathode terminal of the SCR.

Connect one end of Jumper Lead #2 to Simple SCR/Triac Tester - Anode Terminal and the other end to the anode terminal of the SCR.

At this point check the Test light on the Simple SCR/Triac Tester unit.

If the Test light is not glowing, then proceed to Step 2.

If the Test light IS GLOWING the SCR is short and should be replaced.

Step 2: Check SCR turn on.

Now connect one end of Jumper Lead #3 to the Simple SCR/Triac Tester - Gate Terminal and the other end, you will just touch the gate terminal of the SCR (the smaller tab) and then remove it.

At this point check the Test light on the Simple SCR/Triac Tester unit.

If the Test light is NOT glowing or just flashed as you touched the gate wire, you should replace the SCR.

If the Test light is glowing, then the SCR is good.


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