2. Explanation of symbols
The triangle containing a lightning symbol warns against danger of an electric shock
or of the impairment of the electrical safety of the device.
The symbol with an exclamation mark in a triangle is used to highlight important infor-
mation in these operating instructions. Always read this information carefully.
The arrow symbol indicates special information and advice on how to use the product.
This product has been CE-tested and meets the necessary European guidelines.
Class 2 insulation (double or reinforced insulation)
CAT II Overvoltage category II for measurements on electric and electronic devices con-
nected to the mains supply with a power plug. This category also covers all smaller
categories (e.g. CAT I for measuring signal and control voltages).
CAT III Overvoltage category III for measuring in building installation (e.g. outlets or sub-dis-
tribution). This category also covers all smaller categories (e.g. CAT II for measuring
electronic devices).
Ground potential
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