PARSTAT 4000 Hardware Manual
PARSTAT 4000 Hardware Manual 14
Such transients almost always enter the instrument via the line cord. Possible
sources include heavy-duty electric motors, RF equipment, diathermy machines,
arc welder, spark chambers, and others.
3. Lightning
Transients caused by lightning almost always enter the instrument via the line cord.
Static discharge problems can sometimes be avoided by judiciously selecting the floor
covering in the work area. The simplest approach to the problem is to discharge your
body by touching a grounded metal object just before touching the instrument, particularly
when making connections to the cell. External line-transient filters can generally suppress
transients that enter the instrument via the line cord. A suitable transient suppressor is
available from Princeton Applied Research. Various kinds of power-line conditioners are
also commercially available.
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