Safety Instructions
Damage due to non-compliance with these operating instructions leads to the expiry
of warranty! We accept no liability for consequent damage.
We accept no liability for damage to property or injury to persons caused by the mis-
handling of the device or non-compliance with the safety instructions. In such cases
the guarantee will lapse.
- These devices have been designed in compliance with EN61010, safety require-
ments for electronic measuring instruments, and left the factory in perfect condition
in terms of safety engineering. To maintain this status and ensure safe operation,
the user must comply with the safety instructions and warnings contained in these
operating instructions.
Ꮨ
= Caution! Dangerous voltage, do not touch! Danger!
= Read the operating instructions!
CAT III
= Excess voltage category III for measurements in the building
installation
= Insulation class 2 (double insulated)
- Measurements of currents are only permitted in such electric circuits which them-
selves are secured by 20A and in which the voltages do not exceed 600VAC or
VCD (600V fuse).
- The measuring instruments and circuits are not protected against electric arc
explosions.
- Measuring instruments and accessories should be kept out of the reach of children!
- In commercial institutions, the accident prevention regulations of the Employer’s
Liability Insurance Association for Electrical Systems and Operating Materials are
to be observed.
- In schools, training centres, computer and self-help workshops, handling of measur-
ing instruments must be supervised by trained personnel in a responsible manner.
- Take particular care when dealing with voltages exceeding 25V alternating current
(AC) or 35V direct current (DC). Even at these voltages it is possible to get a fatal
electric shock if you touch electric conductors. Therefore, first de-energise the
voltage source, connect the measuring instrument to the connections at the volt-
age source to be measured, set the required voltage measurement range at the
measuring instrument, and then switch on the voltage source. When the measure-
ment has been completed, de-energise the voltage source and remove the cables
from the connections at the voltage source.
- Always make sure before measuring voltages that another measuring function is
not active (resistance measurement, diode test etc.).
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