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b) Symbols on the product
Symbol
Meaning
This device is CE compliant and fulfills all applicable European
guidelines.
The device was constructed in protection class II (double or reinforced
insulation, protective insulation).
A lightning bolt symbol in a square indicates that the device may be
used to conduct measurements on non-insulated, dangerously live
conductors and warns of associated hazards. Use personal protective
equipment.
CAT II
Measuring category II for measurements at electric and electronic
devices, which are directly supplied with mains voltage via a power
plug. This category also includes all smaller categories (e.g. CAT I for
measuring signal and control voltages).
CAT III
Measuring category III for measurements in the building installation
(e.g. power plugs or sub-distributors). This category includes all
lower categories (i.e. CAT II for measurements on electrical devices).
Measurement operation in CAT III is permissible only using test leads
with a maximum exposed contact length of 4 mm or test leads with
protective caps.
Ground potential
Symbol for capacitance measuring range
Polarity markings (positive/negative terminal) for direct current
measurement. The symbols show the direction of current for
measuring with correct polarity.
Conductor position markings for correct current measurement.
