Velleman DVM831 Bedienungsanleitung Seite 6

to voltages and d voltage peaks which
Refer to the ta ble above.
This device is s suitable for measu
• Protected el ectronic circuits which
e.g. electron nics circuits, control s
• circuits whic ch are directly connec
• measurem ments on mono-phase
mains by y means of a plug
• mono-ph ase appliances and ci
normal d omestic environment,
apart from m a CAT III- or 20m a
househol d appliances, portable
a distribu ution board ...
This device is s NOT suitable for:
• Voltages abo ove 500V
• measureme nts in/on low-voltage
behind mete er box)
• measureme nts on (fixed) mono-
CAT III or C CAT IV environments (
circuits, bus s bars, low-voltage dis
• Measuremen nts on distribution equ
meter boxes s and equipment/circu
environmen t e.g. circuits in sheds
or circuits u sing underground wir
This s device is only suitab
env vironments.
5. Pollution n degree
IEC 61010-1 sp pecifies different type
different protec ctive measures are ne
environments r require more protectio
which is to be f found in a certain env
and the enclos ure properties. The po
which environm ment the device may b
Pollution No pollution or only dry,
degree 1 pol llution has no influenc
enc closures).
Pollution On ly nonconductive pollu
degree 2 con nductivity caused by c
offi ice environments fall
Pollution Con nductive pollution occ
degree 3 tha at becomes conductive
(in dustrial environments
but t not in contact with p
Pollution The e pollution generates
degree 4 dus st or by rain or snow.
env vironments where hig
fine e particles occur)
31.03.2010
DVM831
h can occur within the
urements up to 500V
h are not directly conn
ignals, circuits behind
ted to mains power, b
e appliances which are
rcuits directly connect
, provided that the cir
apart from a CAT IV-e
e tools, light circuits a
distribution boards (d
or poly-phased applia
(e.g. mains outlets, el
stribution boards and
uipment and outdoor
uits outside or remote
s, garden houses and
ing e.g. garden lightin
ble for measurements
es of pollution environ
ecessary to ensure saf
on, and the protection
vironment depends ma
ollution degree rating
be used.
nonconductive pollut
ce (only to be found in
ution occurs. Occasion
condensation is to be
under this category).
curs, or dry nonconduc
e due to condensation
s and environments ex
precipitation).
persistent conductivit
(exposed outdoor en
h humidity levels or h
6
environment of use.
V on:
nected to mains powe
d isolating transformer
but limited to:
e connected to the
ted to the mains in a
rcuit is at least 10m
environment. E.g.
at more than 10m from
distribution boards
ances and circuits in
ectric ovens, lighting
circuit breakers).
installations including
e from the domestic
free-standing garage
ng, pool-pump...
up to 500V in CAT I
ments, for which
fety. Harsher
n against the pollution
ainly on the insulation
of the DVM indicates
tion occurs. The
n hermetically sealed
nally, temporary
expected (home and
ctive pollution occurs
n that is to be expecte
xposed to outside air
ty caused by conductiv
vironments and
high concentrations of
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