Velleman DVM400 Serie Manual Del Usuario página 12

• Connect the red test probe
the catho ode.
• The mete er shows the forwa
connecte d with a reversed
Notes:
o Never perform diode me
capacit tors are completel
o Measu ring diodes that ar
Consid er unmounting fro
7.5 Capacitance m
Do o not perform ca
• Connect the red test lead t
"COM" ja ck.
• Set the r otary switch to
• Press the e RANGE button to
• Connect the test probes to
Notes:
o It take es a few seconds b
behavi or (e.g. 300.0µF r
o To incr rease accuracy wh
the tip s of the measuring
the tes st leads. Subtract t
o Never perform capacitan
capacit tors are completel
7.6 Frequency me
Do o not perform fre
10 000V.
Alw ways be careful w
Ke eep your fingers be
me easurement. Do n
cir rcuit which is being
• Connect the red test lead t
"COM" ja ck.
• Set the r otary switch to Hz
• Press the e RANGE button to
• Connect the test probes to
Notes:
o The fre equency can also b
Start t he measurement a
duty cy ycle.
o Use a s shielded cable for
7.7 Temperature
Do o not touch any
• Set the r otary switch to the
connecte d, the current env
• Place the e adaptor socket be
with "VΩ Hz ").
27.10.2010
DVM4x0
e to the anode of t
ard voltage drop o
polarity, the displ
easurements on a l
y depleted.
re part of a circuit
om the circuit.
measurements
apacitance measu
to the "VΩ Hz
. .
o manually select t
the capacitor and
before the meter sh
range >30s).
en measuring low
g probes together
this value from the
nce measurements
y depleted.
easurements
equency measur
hen working with
ehind the probe ba
ot touch unused te
g tested.
to the "VΩ Hz
z.
o manually select t
the circuit and re
be measured durin
and press the HZ
measuring small s
measurement
live parts with th
e °C range. Whe
vironmental tempe
etween the "VΩ
12
0
he diode and the b
of the diode. When
ay shows "OL".
live circuit and ma
might produce fa
s
urements on live
" jack and the bla
the range.
d read its value fro
hows the result. T
capacitance value
to determine the
e measured value
s on a live circuit a
rements in circui
voltages above 60
arriers at all times
erminals when the
" jack and the bla
the range.
ad the measured v
ng AC voltage/curr
% button to meas
signals in a noisy e
ts
he temperature
en no temperature
erature is displayed
Hz " and the "C
black test probe to
the diode is
ake sure all
ulty results.
e circuits.
ack lead to the
om the display.
his is normal
es (<4nF), first ho
capacitance value
of the circuit.
and make sure all
its with voltages
0Vdc or 30Vac rms
s during
e meter is linked to
ack lead to the
value from the LC
rent measurement
sure the frequency
environment.
measuring probe
measuring probe
d.
COM" jack (align "
©Velleman
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