Velleman DVM893 Manual Del Usuario página 11

3. Conne ect the black test p
probe e to the anode (pos
The m meter displays the
conne ection is reversed,
Notes:
• Measuri ing diodes that are
Conside er disconnecting th
• In a circ cuit, a good diode
0.8 V. H However, the reve
of other r pathways betwee
7.8 Aud ible Continuity T
To o avoid electrical sh
cir rcuit power and dis
co ntinuity.
Ne ever perform con
To test for r continuity:
1. Set th he rotary switch to
2. Conne ect the black test l
"Ω" so ocket.
3. Conne ect the test probes
If the measured resista
contin nuously and the re
excee eds the selected ra
"1".
7.9 Mea asuring Capacitan
To o avoid electrical sh
cir rcuit power and dis
ca pacitance. Use the
dis scharged.
Do o not perform ca
The meter r's ranges are: 2.0
To measur re capacitance:
1. Select t the appropriate
2. Conne ect the black test l
so ocket.
3. Conne ect the test probes
The m measured value ap
Notes:
• When m measuring bulk cap
readout t.
• To incre ease accuracy whe
hold the e tips of the test p
the test t leads. Subtract th
V. 03 – 01 1/02/2013
DVM893
probe to the catho
sitive) of the diode
approximate forw
the meter display
e part of a circuit m
hem from the circu
should produce a
rse bias reading ca
en the probe tips.
Test
hock and/or dama
scharge all high-vo
ntinuity tests on
o the position.
lead to the "COM"
s to the circuit/com
nce is less than ±
esistance is display
ange or in case of a
nce
hock and/or dama
scharge all high-vo
e DC voltage funct
apacitance measu
00 nF, 20.00 nF, 2
range with the
lead to the "COM"
s to the capacitor t
pears on the displ
pacitors, the mete
en measuring low c
probes together to
his value from the
11
3
ode (negative); co
e.
ard voltage drop.
ys "1".
might produce fau
uit.
forward bias read
an vary depending
age to the instrume
oltage capacitors b
a live circuit.
socket and the re
mponent under tes
50 Ω, the buzzer
yed. If the measur
an open circuit, th
age to the instrume
oltage capacitors b
tion to confirm tha
urements on live
200.0 nF, 2.000 µF
rotary switch.
socket and the re
to measure.
ay.
r needs a few seco
capacitance values
determine the cap
e measured value o
nnect the red test
If the probe
lty results.
ding of 0.5 V to
g on the resistance
ent, disconnect th
before testing the
ed test lead to the
st.
sounds
red resistance
he display shows
ent, disconnect th
before measuring
at the capacitors a
e circuits.
F, 100.0 µF.
ed test lead to the
onds to stabilize th
s (< 2 nF), first
pacitance value of
of the circuit.
©Velleman n
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