Velleman DVM870, Руководство пользователя, Страница: 5 / 50

DVM870 Rev. 01
04.02.2010 ©Velleman nv
5
CAT IV A CAT IV-rated meter is suitable for measuring in CAT I-, CAT II-
and CAT III-environments as well as on the primary supply level.
Note that for all measurements on equipment for which the supply
cables run outdoors (either overhead or underground) a CAT IV
meter
must be used.
Warning: this device was designed in accordance with EN 61010-1
installation category CAT II 600V. This implies that certain restrictions in use
apply that are related to voltages and voltage peaks which can occur within
the environment of use.
•
This device is suitable for measurements up to 600V in CAT II :
measurements in CAT I-environments and mono-phase appliances that
are connected to the mains by means of a plug and circuits in a normal
domestic environment, provided that the circuit is at least 10m apart from
a CAT III- or 20m apart from a CAT IV-environment. E.g. household
appliances, portable tools…
5. General Guidelines
Refer to the Velleman
®
Service and Quality Warranty on the last pages
of this manual.
•
Familiarise yourself with the functions of the device before actually using
it.
•
All modifications of the device are forbidden for safety reasons. Damage
caused by user modifications to the device is not covered by the warranty.
•
Only use the device for its intended purpose. Using the device in an
unauthorised way will void the warranty.
•
Damage caused by disregard of certain guidelines in this manual is not
covered by the warranty and the dealer will not accept responsibility for
any ensuing defects or problems.
•
Protect this device from shocks and abuse. Avoid brute force when
operating.
•
Protect the device against extreme heat (e.g. direct sunlight) and dust.
•
Do not store or use the devices in places with high humidity or
temperature, places where combustible or explosive gasses reside or near
strong magnetic fields.
•
Caution : risk of electroshock when measuring voltages > 36VDC, 25VAC,
currents > 10mA, AC power lines with inductance load and AC power lines
with fluctuating power.
•
Only use the included test leads. When damaged, replace them with test
leads of the same type and with the same specifications.
•
Always verify that all connections are reliable and safe.
•
Before measuring, always check the selected range.
•
Avoid body contact with ground potential (e.g. metallic terminals, output
sockets, lead clamp…) while measuring. Make sure to be electrically
insulated from ground during measurement.