VOLTCRAFT DSO-1022 Kurzanleitung Seite 17

Please observe the following symbols:
A triangle containing an exclamation mark indicates important information in these
operating instructions which is to be observed without fail.
The triangle containing a lightning symbol warns of danger of an electric shock or of the
impairment of the electrical safety of the device.
The "hand" symbol indicates special information and advice on operation of the device.
This product has been CE-tested and meets the necessary European guidelines.
CAT II Overvoltage category II for measurements on electric devices connected to the mains
supply with a power plug.
CAT III Overvoltage category III for measurements in the range of CAT II and for measure-
ments in building installations.
The device is double-insulated and corresponds to protection class 2 (double or rein-
forced insulation)
Ground potential
Regularly check the technical safety of the instrument and measuring lines, e.g.
check for damage to the housing or squeezing etc.
Never operate the device when it is open! !RISK OF FATAL INJURY!
Do not exceed the maximum permitted input values. Do not touch any circuits or
parts of circuits, if they can have higher voltages than 25 V Acrms or 35 V DC.
Mortal danger!
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