Operation Manual

GMC-I Messtechnik GmbH 5
1 Safety precautions
This instrument fulfills the requirements of the applicable European and
national EC guidelines. We confirm this with the CE marking. The
relevant declaration of conformity can be obtained from GMC-I
Messtechnik GmbH.
The multi-function power meter MAVOWATT 4 is constructed and
tested in compliance with the safety rules of DIN VDE 0410 /IEC 414
and VDE 0411-1/EN 61010-1/IEC 61010-1.
When properly used, the safety of both the user and the meter is
assured. Their safety is not assured, however, if the meter is misused
or carelessly handled.
To maintain the technically safe and proper condition and to ensure
safe operation, it is absolutely necessary to carefully and completely
read these operating instructions before using the meter, and to follow
them in all respects.
Please note the following safety precautions:
• The meter must only be operated by persons who understand the
danger of shock hazards and know how to apply safety precau-
tions. Shock hazards exist wherever voltages of more than 50 V
can appear.
• When making measurements where shock hazards exist, do not
work alone. A second person must be present.
• The maximum permissible voltage between any of the connectors
and ground is 650 V.
• Take into account that unexpected voltages can appear on
devices under test, capacitors may be charged dangerously, for
instance.
• Verify that the test leads are in good condition, e.g. no cracked
insulation, no open circuits etc.
• This meter must not be used for measurements on circuits with
corona discharge (high voltage).
• Measurements under moist environmental conditions are not per-
mitted.
• Absolutely verify that overloading of the nominal voltage and nom-
inal current ranges does not exceed the permissible limits. See
chapter 5 „Specifications“ for limits.