Velleman DVM831 Manual Del Usuario página 5

Do no ot measure circuits th
Do no ot measure current in
Do no ot conduct resistance,
circui ts.
When measuring currents u
measu urement followed by a
measu urements.
When carrying out measure
circuit ts, always be aware th
points s might damage the m
Do n ot replace internal pa
acces ssories by identical on
acces ssories e.g. test probe
Switc ch off the meter and re
batte ry or fuses.
All m odifications of the dev
Dama age caused by user m
the w warranty.
4. Overvolt tage/installation
DMMs are cate egorized depending on
overvoltage tha at might occur at the
bursts of energ gy induced in a system
line.
The existing ca ategories according EN
A CAT I -rated meter is suitab
CAT I circuits which are not directly
circuits, , control signals...
A CAT I I-rated meter is suita
environ ments and mono-pha
CAT mains b by means of a plug an
II provide d that the circuit is at
apart fr rom a CAT IV-environm
tools...
A CAT I II-rated meter is suita
environ ments, as well as for
CAT
phased appliances which are
III
environ ment, and for measur
(fuse bo oxes, lighting circuits,
A CAT I V-rated meter is suita
CAT III- -environments as wel
CAT
Note th at for all measuremen
IV
run outd doors (either overhea
used.
Warning:
This device wa s designed in accorda
CAT II 500V. T This implies that certa
31.03.2010
DVM831
at may contain voltag
circuits with voltages
diode- or continuity m
up to 10A, max. 10s c
a 15 minutes break be
ements on a TV set or
hat high amplitude vo
meter.
arts yourself. Replace
es with the same spe
es at your dealer.
emove test probes pr
vice are forbidden for
odifications to the dev
n category
n the risk and severity
point of test. Transien
m, e.g. caused by ligh
N 61010-1 are:
ble for measurements
y connected to mains
ble for measurements
se appliances which a
d circuits in a normal
t least 10m apart from
ment. E.g. household
able for measurement
measurements on (fix
at least 10m apart fr
rements in or on distr
electric ovens).
able for measuring in
l as on the primary su
nts on equipment for w
d or underground) a C
ance with EN 61010-1
in restrictions in use a
5
ges > 500V
s > 250V
measurements on live
continuous
etween 2
r switching power
oltage pulses at the te
damaged or lost
cifications. Order spar
ior to replacing the
safety reasons.
vice is not covered by
y of transient
nts are short-lived
tning strike on a powe
on protected electron
power, e.g. electronic
s in CAT I-
are connected to the
domestic environmen
m a CAT III- or 20m
appliances, portable
ts in CAT I- and CAT I
xed) mono- or poly-
om of a CAT IV-
ribution level equipme
CAT I-, CAT II- and
upply level.
which the supply cabl
CAT IV meter must b
installation category
apply that are related
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