Toppro TPR-5000, User Manual

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The lightning flash with arrowhead symbol, in an equi-
lateral triangle, is intended to alert the user to the pres-
ence of uninsulated “dangerous voltage” within the
product’s enclosure that may be of sufficient magnitude
to constitute a risk of electric shock to a person.
The exclamation point, in an equilateral triangle, is in-
tended to alert the user to the presence of important op-
eration and maintenance instructions in the literature
accompanying the product.