VOLTCRAFT VC-22 Notice D'emploi page 23

2. Explanation of Symbols
The symbol with the lightning in a triangle indicates that there is a risk to your health,
e.g. due to an electric shock.
The symbol with an exclamation mark in a triangle is used to highlight important infor-
mation in these operating instructions that must be observed.
The arrow symbol indicates special information and tips on how to use the product.
This product has been CE-tested and meets the relevant European guidelines
Class 2 insulation (double or reinforced insulation)
CAT II Measurement Category II: for measurements on electric and electronic devices con-
nected to the mains supply with a mains plug. This category also includes all lower
categories (e.g. CAT I for measuring signal and control voltages).
CAT III Measurement Category III: For measuring circuits of installations in buildings (e.g.
mains sockets or sub-distributions). This category also includes all lower categories
(e.g. CAT II for measuring electrical devices). Measurement in CAT III is only permitted
with protective caps over the probe tips.
CAT IV Measurement Category IV: for measurements at the source of the low-voltage instal-
lation (e.g. main distribution, home delivery points of the utility companies, etc.).
Earth potential
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