Water-cooled gun
When SmarTac is used with a water-cooled gun, the quality of the coolant becomes
very important. Impure water, for example containing salt solution, acts as a
conductor to ground potential, effectively reducing the sensitivity or even reduce
the sensing voltage below SmarTac working range. In Electric equivalent diagram
on page 27, this loss is represented by resistor #1. Non-conductive liquid such as
ethylene glycol or distilled water is recommended as gun coolant. Tap water is
unacceptable.
28 Application manual - SmarTac
3HAC024845-001 Revision: A
© Copyright 2004-2016 ABB. All rights reserved.
3 Application guide
3.3.1 Interaction with the welding equipment and weldment
Continued
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