Velleman DVM893 - Manual (Page 10)

V. 03 – 01
in ser
dama
7. Switch
The m
negat
prece
range
8. Cut of
9. Discha
10. Remo
11. Resto
7.6 Mea
To
cir
res
Ne
The meter
20.00 MΩ,
To measur
1. Select
2. Conne
“Ω” so
3. Conne
The m
Notes:
• The me
rated va
paths b
• To incre
of the te
Subtrac
• For resi
needs a
measur
• If the m
circuit,
7.7 Test
To
cir
dio
Ne
To test a d
1. Set th
2. Conne
s
1/02/2013
ries). Reversing th
ge the meter.
h on the power su
measured value ap
tive polarity is pres
ded by a “–” sign.
e limit, the display
ff the power suppl
arge all the high-v
ove the test probes
re the circuit to its
asuring Resistanc
o avoid electrical sh
rcuit power and dis
sistance.
ever perform res
r’s ranges are: 200
, 200.0 MΩ.
re resistance:
t the appropriate “
ect the black test l
ocket.
ect the test probes
measured value ap
asured value of a
alue. This is becau
etween the probe
ease accuracy whe
est probes togethe
ct this value from t
stance measurem
a few seconds to st
ring.
measured resistanc
the display shows
ting Diodes
o avoid electrical sh
rcuit power and dis
odes.
ever perform dio
diode out of a circu
he rotary switch to
ect the black test l
socket.
DVM893
10
he probes will give
pply of the circuit
pears on the displ
sent at the red tes
When the measu
shows “1”. Select
y of the circuit to
voltage capacitors.
s from the circuit.
s original condition
ce
hock and/or dama
scharge all high-vo
sistance measure
0.0Ω, 2.000 kΩ, 20
“Ω” range with the
lead to the “COM”
s to the circuit/com
pears on the displ
resistor in a circui
use the meter’s tes
tips.
en measuring low
er to determine th
the measured valu
ents in the 20 MΩ
tabilize the readou
ce exceeds the sele
“1”.
hock and/or dama
scharge all high-vo
ode measuremen
uit:
o the position.
lead to the “COM”
3
e a negative readin
to measure.
ay. For DC measu
st probe, the indica
red value is highe
t a higher range.
measure.
.
n.
age to the instrume
oltage capacitors b
ements on a live
0.00 kΩ, 200.0 kΩ
e rotary switch.
socket and the re
mponent under tes
ay.
it often differs from
st current flows th
resistance values,
e resistance value
ue of the circuit.
and 200 MΩ rang
ut. This is normal f
ected range or in c
age to the instrume
oltage capacitors b
nts on a live circu
.
socket and the re
©Velleman n
ng, but will not
urements, when a
ated value is
r than the selected
ent, disconnect th
before measuring
e circuit.
Ω, 2.000 MΩ,
ed test lead to the
st.
m the resistor’s
rough all possible
first hold the tips
e of the test leads.
ges, the meter
for high resistance
case of an open
ent, disconnect th
before testing
uit.
ed test lead to the
nv
d
e
e
e