Velleman DVM840 Bedienungsanleitung Seite 7

compar rtment.
•
Release e the 2 screws unde
•
Gently r remove the front pl
•
Fuses a re located at the bo
5x20mm m).
•
Close th he housing and tigh
•
Close th he battery compartm
7. Fro ont panel Des
Refer to th he illustrations on p
8. Op perating instru
Risk of electric shoc R
c ircuits.
Before measuring, a B
damaged and verify d
•
Never e exceed the limit valu
the spe cifications for each
•
Do not t touch unused term
tested.
•
Only us e the meter in the i
measur re voltages that mig
•
When a a measuring range is
lower to o the appropriate ra
•
Disconn nect the test leads f
in order r to change function
•
When c carrying out measur
rememb ber that high amplit
meter.
•
Always be careful when wo
your fin ngers behind the pro
•
Do not measure current in
•
Never p perform resistance,
sure all capacitors in the ci
8.1 DC Vo oltage measurem
D Do not measure circ
A Always be careful w
K Keep your fingers be
D Do not touch unused
being tested. b
1. Connec t the black test lead
Ω" jack.
"mAVΩ
2. Select t he appropriate V
range is s unknown, always s
appropr riate range.
3. Connec t the test leads to t
18.10.201 0
DVM840
r the battery cover
late from the housi
ottom of the PCB, 2
ten the 2 screws.
ment and reseat th
scription
page 2 of this manu
uctions
ck during operation
always make sure th
the connections, se
ue for protection. T
range of measurem
inals when the met
indicated overvolta
ght exceed the indic
s unknown, always
ange.
from the tested circ
ns.
rements on a TV set
tude voltage pulses
orking with voltage
obe barriers at all ti
circuits with voltag
diode or continuity
rcuit are discharged
ments
cuits where voltage
hen working with v
ehind the probe bar
d terminals when th
d (‐) to the "COM" j
range with the FU
select the highest p
the circuit.
7
.
ng.
00mA/250V left, 10
e screw.
al.
n. Be very careful wh
he meter and/or tes
elected function an
This limit value is list
ment.
ter is linked to a circ
ge/installation cate
cated category value
select the highest p
cuit before rotating
t or switching powe
s at the test points m
s above 60Vdc or 3
imes during measur
ges > 250V
y measurements on
d.
es > 600V CAT III ma
voltages above 60Vd
rriers at all times du
he meter is linked t
ack and the red tes
UNCTION switch. W
possible range and l
0A/250V right (both
hen measuring live
st probes are not
d range.
ted separately in
cuit which is being
egory. Never
es.
possible range and
the range selector
er circuits, always
might damage the
0Vac rms. Keep
rement.
n live circuits. Make
ay occur.
dc or 30Vac rms.
uring measurement
o a circuit which is
st lead (+) to the
When the measuring
ower to the
©Velleman n
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t.
g
nv