Velleman DVM831 Manual Del Usuario página 10

• The meter w will display the approx
connection i is reversed, the meter
circuited, th e display shows 0mV.
Notes:
• Never pe rform diode measurem
capacitor rs are completely disch
• Measurin g diodes that are part
Consider disconnecting them f
Transistor tes st
Do n not perform transist
Use the included transis
• Connect the e black test lead to the
VΩmA jack .
• Set the sele ection switch to hFE.
• Determine w whether the transistor
emitter, the e base and the collecto
the included d adaptor socket.
• Connect the e test probes to the da
probe to the e "COM").
• The current gain hFE is shown on
• Nota:
• Make sur re to insert the transis
8. Maintena ance / battery a
WARN NING: To avoid elec
openi ng the device To pr
AMP/ VOLT rating shown
Rema ark: refer to the war
Do no ot replace internal par
access sories by identical one
access sories e.g. test probes
Switch h off the meter and re
battery y or fuses.
a. General ma ainenance:
• Wipe the de evice regularly with a m
solvents or a abrasive products.
b. Battery Re placement
• Replace the battery as soon as th
Low/bad bat tteries can produce fa
• Remove tes t probes from the circ
the input jac cks.
• Switch off th he multi-meter.
• Release the screw at the back of
compartmen nt.
• Replace the battery by 2 new bat
specification ns following the indica
rechargeabl e batteries)
• Close the ba attery compartment a
31.03.2010
DVM831
ximate forward voltage
r will display "1"; if th
.
ments on a live circuit
harged.
t of a circuit might pro
from the circuit.
tor test on live circu
stor socket.
e COM jack and the re
r is of the NPN- or PNP
or. Insert the leads int
aptor socket (red prob
n the display (base cu
stor in the socket the
nd fuse replacem
trical shock remove
revent fire, only inst
.
rning on the back of
rts yourself. Replace d
es with the same spec
s at your dealer.
move test leads prior
moist, lint-free cloth.
he " " indication ap
alse readings.
cuit under test. Remov
the meter (top) and o
tteries of the same typ
ated polarity(2x 1.5V A
nd tighten the screw.
10
e drop. If the lead
he diode is short-
t and make sure all
oduce faulty results.
uits.
ed test lead to the
P-type and locate the
to the proper holes in
be to the "+", black
rrent 10µA, Vce 2,8V)
right way.
ment
e test leads before
tall fuses with
f the meter.
damaged or lost
cifications. Order spare
to replacing the
Do not use alcohol,
pears on the display.
ve all test leads from
open the battery
pe and with the same
AAA, do not use
©Velleman nv
).
e
v