Friday, August 23, 2013

Correct polarity of Clip Cord.

-Correct polarity of clipcord: In order for the coil
tattoo machine to operate properly,the clipcord must
be installed on the tattoo machine,with it's correct polarity.The coil machine diagnostics feature,allows for a quick check of the correct polarity of the clipcord.

The correct installation of the clipcord is the one that the Power supply's 'Ground ' ( 0 V ) is binded with the frame( 'case' ) of the tattoo machine.
The +V goes on the lower bind post.


Check Clip Cord Polarity :
-Install the sensor wire's croc clip to the machine's contact screw and insert it's plug at the Sensor Input.
-Take a measure of the Duty Cycle with free running
machine (no load ).Note the result.
-Place your thumb in the armature bar's needle tip,while the machine is operating.
-Press upwards with your thumb,
thus forcing the front spring to contact more
the contact screw's tip,with the machine still operating .This will normally increase
the machine's Duty Cycle.I.e from 50% should go to 60-80%.Coils are charging for longer time.
 
-If instead a decreasement is shown (I.e from 50% goes to 40-20 % ),reverse the Clip Cord's polarity,
as it is wrongly installed.