Velleman DVM891 User manual

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ER
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ER

01.10.2009
DVM89
1
2
1
©Velleman nv

01.10.2009
1. Int
To all re
s
Importa
n
If in dou
Thank yo
u
bringing t
install or
u
certain g
u
dealer wil
Your DV
M
display. I
t
The devic
to this te
c
measure
m
The DVM
continuit
y
diodes an
a.
W
Be very c
a
device m
a
precautio
n
prescripti
o
electrical
This devi
c
Refer to t
h
of this m
a
b.
S
This mult
i
Neverthel
following
•Never
a
ground
.
•Use ex
t
30Vrm
s
roduction
s
idents of the
E
n
t environmen
t
This symbol on
of the device a
f
not dispose of
t
waste; it shoul
d
This device sh
o
recycling servi
c
bt, contact yo
u
u
for choosing Ve
his device into s
e
u
se it and contac
t
u
idelines in this
m
l not accept res
p
M
891 is a profes
s
t
is ideally suite
d
e is equipped wi
t
c
hnology, the D
V
m
ents for years t
891 measures
D
y
, capacitance, fr
d transistors (h
F
W
arning
a
reful when perf
o
a
y result in serio
u
n
s for working w
o
ns listed below.
circuits and test
i
c
e is not intende
d
h
e Velleman®
S
a
nual.
S
afety Prescrip
t
i
-meter was desi
ess, safe operat
i
safety prescripti
o
a
pply more than
.
t
reme caution w
h
s
AC.
DVM89
1
3
User ma
n
E
uropean Unio
n
t
al information
the device or th
f
ter its lifecycle
c
t
he unit (or batt
e
d
be taken to a
s
o
uld be returned
c
e. Respect the l
o
u
r local waste
d
lleman! Please r
e
e
rvice. If the devi
c
t
your dealer. Da
m
m
anual is not co
v
p
onsibility for an
y
s
ional digital mu
l
d
for professional
t
h the latest in I
C
V
M891 will provi
d
o come.
D
C and AC voltag
equency and te
m
F
E).
o
rming measure
m
u
s injuries or ev
e
ith electrical circ
Do not use this
i
ng procedures.
d
for commercial
S
ervice and Qu
a
t
ions
gned to ensure
t
i
on mainly depe
n
o
ns:
600VDC or 600
V
h
en working with
1
n
ual
n
about this pro
d
e package indic
a
c
ould harm the e
e
ries) as unsorte
s
pecialized comp
a
to your distribut
o
o
cal environmen
t
d
isposal author
i
e
ad the manual t
h
c
e was damaged
m
age caused by
v
ered by the war
y
ensuing defect
s
l
ti-meter with a
3
, academic and
h
C
and display te
c
d
e you with pre
c
e, DC and AC cu
m
peratures. You
c
m
ents as impro
p
e
n death. Take a
uits and mind th
device if you ar
e
or industrial us
e
a
lity Warranty
o
t
he safest operat
n
ds on you, the
u
V
rms AC between
voltages in exc
e
©Velleman
d
uct
a
tes that disposa
l
nvironment. Do
d municipal
a
ny for recycling
o
r or to a local
t
al rules.
i
ties.
h
oroughly before
in transit, don't
disregard of
ranty and the
s
or problems.
3
½ digit LCD
h
ome application
c
hnology. Thank
s
c
ise and reliable
rrent, resistance
c
an also test
p
er use of this
ll usual
e safety
e
unfamiliar with
e
.
o
n the last page
s
ion possible.
u
ser. Respect th
e
an input jack a
n
e
ss of 60VDC or
nv
l
.
s.
s
,
s
e
n
d

DVM891
01.10.2009 ©Velleman nv
4
•Always discharge the filter capacitors in a power supply circuit before
attaching the test leads.
•Never connect a voltage source to the DVM891 when it is in current (DCA
or ACA) mode, resistance or continuity mode.
•Always turn off the power and disconnect the test leads prior to replacing
the battery or fuse.
•The user should only operate the multi-meter when the back cover is in
place and securely fastened.
•When carrying out measurements on TVs or switching power circuits, you
should always remember that high voltage pulses may occur at the test
points. These pulses may damage the meter.
c. Maintenance
Your DVM891 is an example of superior design and craftsmanship. The
following suggestions will help you keep the device in perfect working order:
•Do not expose the device to water. Wipe it dry immediately if it should get
wet.
•Use and store the multi-meter under normal temperatures. Extreme
temperatures may shorten the life of the device or damage the battery.
•Handle the multi-meter with care. Dropping it may damage the circuit
boards or the housing and may cause the DVM891 to malfunction.
•Replace an old or weak battery with a fresh one of the required size and
type.
•Remove the battery during long periods of inactivity. This will protect the
multi-meter from possible leakage.
•Disconnect the test probes prior to opening the housing.
•A blown fuse should be replaced with an identical one (see §6).
•Do not use this device in case of malfunction or if anomalies are detected.
Have it repaired by qualified personnel.
•Do not use the multi-meter unless the back cover is in place and fully
fastened.
•Use a soft cloth and a mild detergent for cleaning purposes. Never use
abrasives or solvents on the meter.
2. Accessories
•set of test leads
•K-type thermocouple (400°C)
•1 battery of 9V
•1 user manual
•1 holster: it protects the device and ensures comfortable operation. Refer
to the illustrations on page Error! Bookmark not defined. of this manual.
A & B. Use one of the two supports to place the device on a table or a
desk.

01.10.2009
C. Han
g
remo
holst
e
D. Eac
h
•1 adap
t
temper
a
3. De
s
Refer to t
manual.
1 LCD
2 Pow
e
3 "10
A
4 "mA
/
a. Ran
g
This rota
r
ranges.
b. Pow
e
This push
equipped
deactivat
e
15 minut
e
the devic
e
DVM891
c. Inpu
The DVM
overload.
should b
e
connecte
d
function.
FUN
C
200
m
V
H
Ω
/
mA
10
&
g
the meter on t
h
ve the smaller s
u
e
r. Use the supp
o
h
of the two sup
p
t
or socket for sa
f
a
ture.
s
cription of
t
he illustrations
o
screen
e
r ON/OFF butto
n
A
" jack
/
hFe" jack
g
e and Functio
n
r
y switch is used
e
r Switch
-button activate
s
with an energy-
s
e
d when the RA
N
e
s. The user will
e
on again when
.
t Jacks
891 is equipped
The limit values
e
connected to th
d
to one of the o
t
C
TION RE
D
CON
N
m
V
& V∼
H
z
Ω
/
& mA∼
m
&
10A∼
DVM89
1
5
h
e wall using the
u
pport and inser
t
o
rt to hang the
d
p
orts in fig. D ca
f
ely measuring t
r
t
he
f
ront pa
n
o
n page Error! B
o
5
n
6
7
n
Selector
to install the va
r
s
and deactivate
s
s
aving feature: t
N
GE and FUNCTI
O
have to press th
the energy-savi
n
with 4 input jac
k
are listed in the
e "COM" jack. T
h
t
her three input
j
D
LEAD
N
ECTION
VΩHz 250
V
VΩHz 600
V
VΩHz 250
V
VΩHz 250
V
VΩHz 250
V
m
A/hFe 200
m
10A 10A
D
10A
f
1
smaller of the t
w
t
it in the slots a
t
d
evice on a nail i
n
n hold a test lea
d
r
ansistors, capac
i
n
el
o
okmark not defi
n
"COM" jack
"VΩHz" jack
RANGE and FU
N
r
ious functions a
n
s
the device. Th
e
he meter is auto
O
N selector has
n
e ON/OFF butto
n
n
g feature has d
e
k
s that are prote
table below. Th
e
h
e red test lead
s
j
acks, dependin
g
INPUT L
I
V
DC or rms AC
V
DC, 600V AC (s
V
DC or rms AC
V
DC or rms AC
V
DC or rms AC
m
A DC or rms AC
D
C or rms AC co
n
f
or max. 15 seco
©Velleman
w
o supports:
t
the top of the
n
the wall.
d
.
i
ties and
n
ed. of this
N
CTION switch
n
d each of the 2
4
e
DVM891 is als
o
matically
n
ot been used fo
n
twice to switch
e
activated the
cted against
e
black test lead
s
hould be
g
on the required
I
MITS
ine wave)
n
tinuous
nds
nv
4
o
r

01.10.2009
4. Op
e
a. Mea
s
1. Conn
(+) t
o
2. Sele
c
conn
e
3. The
m
on th
Remark:
b. Mea
s
1. Conn
(+) t
o
2. Sele
c
the t
e
3. The
m
Remark:
c. Mea
s
1. Conn
(+) t
o
test l
e
sec.
a
2. Sele
c
3. Conn
4. The
p
on th
Remark:
d. Mea
s
1. Conn
(+) t
o
test l
e
sec.
a
2. Sele
c
3. Conn
4. The
m
Remark:
e
rating inst
r
s
uring DC Volt
a
ect the black tes
o
the "VΩHz" jac
c
t the appropriat
e
e
ct the test lead
s
m
easured value
a
e LCD.
Set the FUNCTI
O
your way down
s
uring AC Volta
ect the black tes
o
the "VΩHz" jac
c
t the appropriat
e
e
st leads to the
s
m
easured value
a
Set the FUNCTI
O
your way down
s
uring DC Curr
e
ect the black tes
o
the "mA" jack
f
e
ad to the "10A"
a
t a stretch).
c
t the A rang
e
ect the test lead
s
p
olarity of the re
d
e LCD.
Set the FUNCTI
O
your way down
s
uring AC Curr
e
ect the black tes
o
the "mA" jack
f
e
ad to the "10A"
a
t a stretch).
c
t the A ∼range
w
ect the test lead
s
m
easured curren
t
Set the FUNCTI
O
your way down
DVM89
1
6
r
uctions
a
ge
t lead (-) to the
k.
e
V rangewit
h
s
to the source o
a
nd the polarity
o
O
N switch to the
if the voltage r
a
ge
t lead (-) to the
k.
e
V∼range with
t
s
ource or load to
a
ppears on the L
C
O
N switch to the
if the voltage r
a
e
nt
t lead (-) to the
f
or measuremen
t
jack for measu
r
e
with the FUNC
T
s
IN SERIES wi
t
d
test lead and t
h
O
N switch to the
if the current r
a
e
nt
t lead (-) to the
f
or measuremen
t
jack for measu
r
w
ith the FUNCTI
O
s
IN SERIES wi
t
t
is displayed on
O
N switch to the
if the current r
a
1
"COM" jack and
t
h
the FUNCTION
r load to be test
e
o
f the red test le
a
highest range a
n
a
nge is unknown
"COM" jack and
t
t
he FUNCTION s
w
be tested.
C
D display.
highest range a
n
a
nge is unknown
"COM" jack and
t
t
s of max. 200m
A
r
ements o
f
max.
T
ION switch.
t
h the load unde
r
h
e measured cur
highest range a
n
a
nge is unknown
"COM" jack and
t
t
s of max. 200m
A
r
ements of max.
O
N switch.
t
h the load unde
r
the LCD.
highest range a
n
a
nge is unknown
©Velleman
t
he red test lead
switch and
e
d.
a
d are displayed
n
d gradually wo
r
beforehand.
t
he red test lead
w
itch and conne
c
n
d gradually wo
r
beforehand.
t
he red test lead
A
. Move the red
10A (for max. 1
5
r
measurement.
rent are display
e
n
d gradually wo
r
beforehand.
t
he red test lead
A
. Move the red
10A (for max. 1
5
r
measurement.
n
d gradually wo
r
beforehand.
nv
r
k
c
t
r
k
5
e
d
r
k
5
r
k

01.10.2009
e. Mea
s
1. Conn
e
to th
e
2. Sele
c
the t
e
Remark
s

T
r

T
i
n
t

D
a
f. Mea
s
1. Conn
(+) t
o
2. Conn
sock
e
one
o
Remark
s
3. Sele
c
4. Conn
lead
(
5. The
d
g. Test
i
1. Conn
e
to th
e
2. Sele
c
test l
e
3. Conn
cath
o
4. For c
o
circui
resis
t
h. Tran
1. Conn
(+) t
o
2. Sele
c
3. Dete
r
the e
holes
s
uring Resista
n
e
ct the black tes
t
e
"VΩHz" jack.
c
t the appropriat
e
e
st leads with th
e
s
:
T
he meter may n
r
esistance measu
T
he overrange in
d
n
put is not conn
e
he max. value o
f
D
isconnect the ci
r
a
re fully discharg
s
uring Capacit
a
ect the black tes
o
the "mA" jack.
ect the test cap
a
e
t following the i
n
o
f the 4 input jac
s
: Do not connec
t
Discharge capa
c
t the "F" range
w
ect the black tes
(
+) to the other
d
isplay will show
i
ng Diodes & C
o
e
ct the black tes
t
e
"VΩHz" jack.
c
t the 200/ ra
n
e
ads.
ect the red test l
o
de of the diode
t
o
ntinuity tests:
c
t to be tested. T
t
ance between t
h
sistor Test (hF
E
ect the black tes
o
the "mA" jack.
c
t the hFE-range
r
mine whether t
h
mitter, the base
in the included
a
DVM89
1
7
n
ce
t
lead (-) to the "
C
e
"Ω" range with
e
load to be mea
eed a few secon
d
rements in exce
s
d
ication (“1.”) w
i
e
cted or if the re
s
f
the selected ra
n
r
cuit to be teste
d
ed before meas
u
a
nce
t lead (-) to the
a
citor to the "Cx"
n
dicated polarity
ks (viz. "10A", "
m
t
an external vol
t
citors before co
n
w
ith the FUNCTI
O
t lead (-) to the
terminal of the
a
the capacitance
o
ntinuity
t
lead (-) to the "
C
n
ge with the FU
N
ead to the anod
e
t
o be tested.
c
onnect the test
l
he incorporated
b
h
e two test leads
E
)
t lead (-) to the
with the FUNCTI
h
e transistor is o
f
and the collecto
r
a
dapto
r
socket.
1
C
OM" jack and t
h
the FUNCTION
s
sured.
d
s to produce a
s
s
s of 1MΩ.
i
ll appear on the
s
istance being
m
n
ge.
d
and make sure
u
ring the in-circu
i
"COM" jack and
t
input connectio
n
. Do NOT conne
c
m
A", "COM" or "
V
t
age to the input
n
necting them.
O
N switch.
"COM" terminal
a
a
daptor socket.
value.
C
OM" jack and t
h
N
CTION switch a
n
e
and the black t
l
eads to two ran
d
b
uzzer is activat
e
is lower than ±
"COM" jack and
t
ON switch.
f
the NPN- or PN
P
r
. Insert the lea
d
©Velleman
h
e red test lead (
+
s
witch and conne
s
table reading fo
display if the
m
easured exceed
s
that all capacito
i
t resistance.
t
he red test lead
n
on the adaptor
c
t the capacitor t
o
V
ΩHz" jack).
terminal.
a
nd the red test
h
e red test lead (
+
n
d connect the
est lead to the
d
om points of th
e
e
d if the
30Ω.
t
he red test lead
P
-type and locat
e
d
s into the prope
r
nv
+
)
ct
r
s
rs
o
+
)
e
e
r

DVM891
01.10.2009 ©Velleman nv
8
4. Connect the black test lead (-) to the "COM" terminal and the red test
lead (+) to the other terminal of the adaptor socket.
5. The display will show the approximate hFE-value at the moment of
testing. Base current 10µA, Vce 2.8V.
i. Measuring Temperature
1. Connect the black test lead (-) to the "COM" jack and the red test lead
(+) to the "mA" jack.
2. Select the TEMP-range with the FUNCTION switch.
3. Insert the plug of the K-thermocouple in the adaptor socket according
to the indicated polarity.
Remark: push the temperature probe firmly into the socket.
4. Connect the black test lead (-) to the "COM" terminal and the red test
lead (+) to the other terminal of the adaptor socket.
5. The display will show the temperature.
Remark: without the thermocouple in place, the display will show the
ambient temperature.
j. Measuring Frequency
1. Connect the black test lead (-) to the "COM" jack and the red test lead
(+) to the "VΩHz" jack.
2. Select the "KHz" range with the FUNCTION switch and connect the test
leads to the source or load to be tested.
Remarks:
Do not apply more than 220Vrms to the input.
Use shielded cable for measuring a weak signal in a noisy
environment.
k. Automatic Power off
1. The device will be deactivated automatically when the FUNCTION and
RANGE switch has not been used for 15 minutes. This energy-saving
feature extends the life of your battery.
2. The meter will be reactivated if the FUNCTION and RANGE switch is
turned or if the power switch is pressed again.
5. Specifications
Maximum accuracy is guaranteed for a one-year period after calibration.
Ideal circumstances require a temperature of 23°C (± 5°C) and a max.
relative humidity of 75%.
a. General
Max. Voltage between Terminal and
Earth
600VDC or 600Vrms AC (sine wave)
Display 3 ½ digit LCD, 2 to 3 readings/sec.
Fuse Protection 200mA-range: F 0.2A/250V resettable
10A-range: F 10A/250V
Power Supply 9V-battery

01.10.2009
Ranging
M
Polarity I
n
Overrang
e
Battery-L
o
Operatin
g
Storage
T
Dimensio
n
Weight
b. DC
V
Ran
200
m
2
V
20
V
20
0
60
0
Input Im
p
Overload
c. AC
V
Ra
n
20
20
0
60
0
Input Im
p
Frequenc
y
Overload
range: m
a
d. DC C
Ra
n
2
m
20
m
200
m
10
Overload
Max. Inp
u
e. AC C
Ra
n
20
m
200
m
10
M
ethod
n
dication
e
Indication
o
w Indication
g
Temperature
T
emperature
n
s
V
oltage
ge
R
m
V
V
V
0
V
0
V
p
edance: 10MΩ
f
Protection: 600
V
V
oltage
n
ge
R
V
0
V
0
V
p
edance: 10MΩ
f
y
Range: 40 to
4
Protection: 600
V
a
x. 15 sec. abov
e
urrent
n
ge
R
m
A
m
A
m
A
A
Protection: 0.2A
u
t Current: 10A
(
urrent
n
ge
R
m
A
m
A
A
DVM89
1
9
manual
" - " is
d
" 1. " i
s
""is
0°C to
4
-10°C
t
88 x 1
7
340g (i
R
esolution
100µV
1mV
10mV
100mV
1V
f
or all ranges
V
DC or peak AC
R
esolution
10mV
100mV
1V
f
or all ranges
4
00Hz
V
rms or peak co
n
e
300Vrms).
R
esolution
1µA
10µA
100µA
10mA
resettable fuse,
(
max.10 seconds
R
esolution
10µA
100µA
10mA
1
d
isplayed
s
displayed auto
m
displayed
4
0°C
t
o 50°C
7
0 x 38mm
ncl. battery)
Ac
c
±0.5% o
f
±0.8% o
f
for all ranges
Ac
c
±0.8% o
f
±1.2% o
f
n
tinuous (except
Ac
c
±0.8% o
f
±1.2% o
f
±2.0% o
f
10A fuse for 10
A
every 15 minut
e
Ac
c
±1.2% o
f
±2.0% o
f
±3.0% o
f
©Velleman
m
atically
c
uracy
f
rdg ±1 digit
f
rdg ±2 digits
c
uracy
f
rdg ±3 digits
f
rdg ±3 digits
for the 200mVA
C
c
uracy
f
rdg ±1 digit
f
rdg ±1 digit
f
rdg ±5 digits
A
range
e
s)
c
uracy
f
rdg ±3 digits
f
rdg ±3 digits
f
rdg ±7 digits
nv
C
-

01.10.2009
Overload
Range: 4
0
Max. Inp
u
f. Resi
s
Ra
n
20
0
2k
Ω
20
k
200
2M
20
M
g. Cap
a
R
2
2
h. Tem
p
Range
TEMP
Using
a
 Usin
g
i. Freq
Ra
n
20
k
Overload
6. Re
p
The "
as follow
s
1. Disc
o
remo
housi
2. Rem
o
3. Inse
r
4. Repl
a
The fuse
r
to an err
o
replace t
h
10A/25
0
Protection: 0.2A
0
to 400Hz
u
t Current: 10A
(
s
tance
n
ge
R
0
Ω
Ω
k
Ω
kΩ
Ω
M
Ω
a
citance
R
ange
2
00nF
2µF
2
0µF
p
erature
Temperature
- 50°C to
4
 0°C to
4
a
K-type thermo
c
g
the built-in tem
uency
n
ge
k
Hz
Protection: AC 2
p
lacing the
B
" symbol appear
s
:
o
nnect the test l
e
ve the test lead
s
ng. This is nece
s
o
ve the screws i
n
r
t a new 9V-batt
e
a
ce the cover an
d
r
arely needs to
b
o
r on behalf of th
h
e blown fuse wi
t
0
V).
DVM89
1
10
resettable fuse,
(
max.10 seconds
R
esolution
0.1Ω
1Ω
10Ω
100Ω
1kΩ
10kΩ
Resolution
100pF
1nF
10nF
Range Resol
u
4
00°C 1°
4
0°C
c
ouple probe
perature sensor
Resolution
10Hz
20Vrms
B
attery and
t
s when the batt
e
e
ads from all live
s
from the input
t
s
sary in order to
n
the back cover
e
ry (NEDA1604
o
d
tighten the scr
e
b
e replaced and
a
e operato
r
. Ope
n
t
h an identical o
n
1
10A fuse for 10
A
every 15 minut
e
Ac
c
±0.8% o
f
±0.8% o
f
±1% of
r
A
±2.5
%
u
tion
C ±0.7
Ac
c
±1% of
r
t
he Fuse
e
ry needs to be r
e
sources, switch
t
erminals BEFOR
avoid the risk of
and retrieve the
o
r IEC6F22).
e
ws.
a
blown fuse is n
e
n
the housing (s
e
n
e (F 0.2A/250
V
©Velleman
A
range Frequen
c
e
s)
c
uracy
f
rdg ±3 digits
f
rdg ±1 digit
r
dg ±2 digits
A
ccuracy
%
of rdg ±5 digit
s
Accuracy
5% of rdg ±3°C
±2°C
c
uracy
r
dg ±1 digit
e
placed. Procee
d
off the device a
n
E opening the
electroshocks.
battery.
e
arly always du
e
e
e above) and
V
resettable, F
nv
c
y
s
d
n
d
e