Velleman DVM893 Manual Del Usuario página 12

7.10 Tran nsistor Test (hFE
To o avoid electrical sh
mo ore than 250 VDC
terminal.
Us se the included ada
To measur re a transistor:
1. Set th he rotary switch to
2. Discon nnect the test lead
socke t with correct pola
socke t of the meter; the
" m mA" socket of the m
3. Deter mine whether the
emitte er, the base and th
the in cluded adaptor so
The d isplay shows the a
7.11 Mea asuring Temperat
To o prevent electrical
tha an 60 VDC or 24 V
me easure temperatur
Us se the included ada
Caution: M Max. temperature
measuring g higher temperatu
To measur re temperature:
1. Set th he rotary switch to
tempe erature.
2. Discon nnect the test lead
socke t with correct pola
socke t of the meter; the
meter r.
3. Insert t the plug of the K
indica ated polarity ("+" p
Note: : Push the temper
4. Touch h the object to mea
The d isplay shows the t
7.12 Mea asuring Frequenc
To o prevent electrical
in circuits with volta
To measur re frequency:
1. Set th he rotary switch to
2. Conne ect the black test l
"Hz" s socket.
3. Conne ect the test probes
The m measured value ap
V. 03 – 01 1/02/2013
DVM893
E)
hock and/or dama
or 250 VAC rms b
aptor socket.
o the "hFE" positio
ds from the socket
arity: the "COM" (o
e "IN" (or "+") plu
meter.
transistor is of the
he collector. Inser
ocket.
approximate hFE-v
ture
l shock, do not me
VAC rms. To preve
res inside a microw
aptor socket and t
is 250 °C with the
ures (up to 1000 °
o the "Temp" posit
ds from the socket
arity: the "COM" (o
e "IN" (or "+") plu
K-thermocouple in
plug goes into the
ature probe firmly
asure with the the
temperature.
cy
l shock or meter d
ges > 250 VDC or
o the "Hz" position
lead to the "COM"
s to the circuit und
pears on the displ
12
3
age to the instrume
between the COM t
n.
ts and plug in the
or "–") plug goes i
ug goes into the
e NPN- or PNP-typ
rt the leads into th
value (current gain
easure objects with
ent fire or meter da
wave oven.
thermocouple.
e included thermo
C), use a suitable
ion. The meter sh
ts and plug in the
or "–") plug goes i
ug goes into the "T
the adaptor socke
"+" socket).
y into the socket.
ermocouple probe.
damage, do not me
r AC rms.
.
socket and the re
der test.
ay.
ent, do not apply
terminal and the
multi-functional
nto the "COM"
pe and locate the
e proper holes in
n).
h voltages higher
amage, never
couple. For
thermocouple.
ows the ambient
multi-functional
nto the "COM"
Temp" socket of th
et according to the
easure frequencies
ed test lead to the
©Velleman n
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