Velleman DVM831 Manual Del Usuario página 9

Notes:
• For DC-cu urrent measurements
red test l ead, the indicated val
• The µA a nd mA-ranges are pro
F500mA/ /250V fuse; the 10A ra
fuse.
Resistance m measurements
Do no ot perform resistanc
• Connect the e red test lead to the V
jack.
• Set the sele ection switch to the de
unknown, a lways select the highe
appropriate range.
• Connect the e test probes to the cir
• The measur red value appears on t
Notes:
• Never pe rform resistance mea
capacitor rs are completely disch
• To increa ase accuracy when me
tips of th e measuring probes t
the test l eads. Subtract this va
• For resist tance measurements a
to stabiliz ze the read-out.
• Should th he measured resistanc
open circ cuit, the display will sh
Continuity tes st
Do no ot perform continuit
• Connect the e black test lead to the
VΩmA jack .
• Set the sele ection switch to 200
• Connect the e test leads to the circ
• When the m measured resistance is
produced an nd the resistance is sh
resistance e exceed the selected ra
will show "1 ".
Note:
• Never pe rform continuity meas
capacitor rs are completely disch
Diode test
Do no ot perform diode me
• Connect the e black test lead to the
VΩmA jack .
• Set the sele ection switch to 2000
• Connect the e test leads to the circ
the anode, b black test probe to the
31.03.2010
DVM831
s, when a negative pol
lue is preceded by a "
otected against over-c
ange is protected with
ce measurements on
VΩmA jack and the b
esired "Ω" range. Whe
est possible range and
rcuit/component unde
the display.
surements on a live c
harged.
easuring low resistanc
ogether to determine
alue from the measure
above 1MΩ the meter
ce exceed the selected
how "1".
ty measurements on
e COM jack and the re
.
uit/component under
s less than 50Ω a cont
howed on the display.
ange or in case of an o
surements on a live c
harged.
easurements on live
e COM jack and the re
.
uit/component under
e cathode).
9
larity is present at the
-" sign.
current with a ceramic
h a ceramic F10A/250
n live circuits.
lack lead to the "COM
n the range is
d lower to the
er test.
circuit and make sure
ce values, first hold th
the resistance value
ed value of the circuit
r needs a few seconds
d range or in case of a
n live circuits.
ed test lead to the
test.
tinuous beep is
Should the measured
open circuit, the displa
ircuit and make sure a
e circuits.
ed test lead to the
test (red test probe t
©Velleman nv
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