3 Application guide
3.1 Searching conditions
Introduction
SmarTac is intended for use in the following conditions:
• In applications where surfaces are free from rust, mill scale, paint, or other
electrically-insulating layer or coating.
• If the gas nozzle is used for a search probe, it must be cleaned at regular
intervals.
• If a water-cooled torch is used, the quality of the cooling water is very
important. Impure water, for example containing salt solution, will act as a
load that will reduce the sensitivity and/or reduce the sensing voltage below
SmarTac working range. Distilled water or a non-conductive coolant such
as ethylene glycol is recommended as gun coolant solution. Tap water is
unacceptable.
• A positive lead break box (secondary contact) is required to isolate the power
source when SmarTac sensing is taking place when using a water-cooled
torch or when searching with the wire.
Application manual - SmarTac 25
3HAC024845-001 Revision: A
© Copyright 2004-2016 ABB. All rights reserved.
3 Application guide
3.1 Searching conditions
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