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4. SYMBOL EXPLANATION
An exclamation mark in a triangle shows important notes in these operating instructions
that must be strictly observed.
The triangle containing a lightning symbol warns against danger of electric shock or
impairment of the electrical safety of the device.
The "arrow" symbol indicates that special advice and notes on operation are provided.
This device is CE-compliant and meets the necessary European directives.
Protection class 2 insulation (double or reinforced insulation)
Overvoltage category II for measurements on electric and electronic devices connected
CAT II
to the mains supply with a mains plug. This category also covers all lower categories (e.g.
CAT I for measuring signal and control voltages).
Overvoltage category III for measuring in building installation (e.g. outlets or sub-
CAT III
distribution). This category also covers all lower categories (e.g. CAT II for measuring
electronic devices).
Overvoltage category IV for measuring at the source of the low-voltage installation (e.g.
CAT IV
main distribution, house-transfer points of energy providers, etc.) This category also
contains all lower categories.
Earth potential
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5. SAFETY INSTRUCTIONS
Read the operating instructions carefully and especially observe the safety
information. If you do not follow the safety instructions and information on proper
handling in this manual, we assume no liability for any resulting personal injury or
damage to property. Such cases will invalidate the warranty/guarantee.
a) Persons / Product
• The device is not a toy. Keep it out of the reach of children and pets.
• Do not leave packaging material lying around carelessly. These may become
dangerous playing material for children.
• Protect the product from extreme temperatures, direct sunlight, strong jolts, high
humidity, moisture, flammable gases, vapours and solvents.
• Do not place the product under any mechanical stress.
• If it is no longer possible to operate the product safely, take it out of operation and
protect it from any accidental use. Safe operation can no longer be guaranteed if the
product:
- is visibly damaged,
- is no longer working properly,
- has been stored for extended periods in poor ambient conditions or
- has been subjected to any serious transport-related stresses.
• Please handle the product carefully. Jolts, impacts or a fall even from a low height can
damage the product.
• Also observe the safety and operating instructions of any other devices which are
connected to the product.
• For safety and approval reasons (CE), unauthorised conversion and/or modification of
the device is not permitted.
• Consult an expert when in doubt as to the operation, the safety or the connection of
the device.
• On industrial sites, the accident prevention regulations of the association of the
industrial workers' societies for electrical equipment and utilities must be followed.
• In schools, training centres, hobby and self-help workshops, handling of meters must
be supervised by trained personnel in a responsible manner.
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