Version
12/99
D
Digitalmultimeter
ME-42
Digital Multimeter
ME-42
Multimktre
numbrique
ME-42
Seite 4 - 34
Page 35 - 64
Page 65 - 98
G9 Digitale
ME-42
/
Best.-Nr.
Item-No. /
multimeter
Pagina
No
de
commande /
Bestnr.:
99 - 129
12
01 30
0
D
Diese Bedienungsanleitung
geh6r-t
zu
diesem
Produkt. Sie
GB
0
enthslt
bung. Achten Sie darauf,
Dritte weitergeben.
Bewahren Sie deshalb diese Bedienungsanleitung zum
Nachlesen auf.!
Eine Auflistung der lnhalte
mit Angabe der entsprechenden Seitenzahlen auf Seite 7.
These operating instructions belong with this product. They
contain important information for putting it into service and
operating it. This should be noted also when this product is
passed on to a third party.
Therefore look after these operating instructions for future
reference!
A list of contents with page numbers can be found on
page 38.
wichtige Hinweise zur lnbetriebnahme und
such
wenn Sie dieses Produkt an
finden
Sie im lnhaltsverzeichnis
Handha-
F
NL
0
Ce mode d’emploi appartient
recommandations
samanutention. Veuillez en tenir
lorsque vous remettez le produit a des tiers.
Conservez ce mode d’emploi
menter en temps utile.!
Vous trouverez le recapitulatif des indications du
la table des
dante h la page 68.
Deze handleiding
aanwijzingen voor de inbedrijfstelling en de hantering.
em deze aanwijzingen in
aan
derden doorgeeft.
Bewaar daarom deze handleiding zorgvuldig zodat u hem
later kunt raadplegen.!
matieres avec
en ce qui
hoort
bij dit product. Zij
a
ce produit. II
concerne
compte
afin
mention de la page
acht,
ook wanneer u dit product
sa mise en service et
et
de pouvoir vous docu-
contient
ceci egalement
bevat
des
contenu i
correspon-
belangrijke
Ne-
Een opsomming van de inhoud met aanduiding van de
overeenkomstige paginanummering vindt u op
pagina
102.
2
9
1
2
6’
20A
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COM
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+ V/Q j
3
GB
Introduction
Dear Customer,
With the Digital Multimeter ME-42 you have acquired a new-gene-
ration measuring instrument built to the latest technological Standards.
Construction complies with DIN VDE 0411, part 1 for measu-.
=
ring instruments
sted (for domestic use) and fulfils the requirements of the applicable national and European directives. Conformance to these has been proven; the relevant documents are lodged with
the manufacturer.
EN 61010-I. In addition it has been
EMC-te-
To maintain this condition and to guarantee safe operation, the
user must observe these operating instructions without fail!
In case of query, consult
Technical Advisory Service:
Germany: Tel.
Mon - Fri 08.00 to
Austria: Tel, +43
Mon Fri 08.30 to
Switzerland:
Mon
Fri 08.00 to
Thu
- Thu
08.30
08.00 to
+49
(0) f 80
18.00
(0)
72 42
to 12.00,
f2.30
Tel, +4f (0)848
f2.00, f3.00
f2.00
auf
53121 19
20 30
13.00
87 78 f f
60
to f 700
to
f6.00
:
35
Intended use of the
Digital Multimeter ME-42:
DC voltage measurement up to a maximum of 1000 VDC
AC voltage measurements up to 750 VAC rms max
Measurement of DC and AC current up to max. 20 A, for a max. of
30 s (protected)
Resistance measurement up to 40 MOhm max
Continuity testing and diode testing.
Measurements must not be performed under unfavourable ambient
conditions. Unfavourable ambient conditions include:
l
wetness or excessive humidity,
l
dust and combustible gases, fumes or solvents,
l
thunderstorms or storm conditions producing strong electrosta-
tic fields, etc.
.-
Any use other than as described above can lead to damage to the
instrument; in addition this is accompanied by dangers such as
short circuit, fire, electric shock, etc. No part of the product must
be modified or converted! The safety instructions are to be followed without fail !
Operating elements (for illustration see
1
Unit
“ON/OFF”
(see also 53.2)
fold-out
page)
This push button is used to switch the digital multimeter on
off. The DMM is ready for operation shortly after switching on.
2
“D-H”
(data hold) button
3
“R-H”
push button
= captures the measured value.
push button
Holding/switching through the measurement ranges = manual
range selection
4
Rotary switch (= measuring function switch) for setting the
different operations (voltage measurement, current measure-
ment, etc.).
20 A input
5
This measuring input is protected with a 20 A fuse and is suita-
ble for DC and AC currents up to max. 20 A (max. 30 s
durati-
on with 15 minute pause between measurements).
6
mA input
This input is for measuring DC and AC currents up to 400
max. (protected with a quick-blow 800mA fuse)
and
mA
7
COM
V-Ohm-(+) input socket (= positive connection)
8
Multifunction LCD display
9
(3-?&-digit,
Analogue
10
Bar graph sub-graduations
11
Overload display
12
When
unds, this means overflow =
(0)
input socket (COM or negative connection)
greatest indication: 3999) with
bargraph
“OL”
appears in the display and an acoustic signal so-
range exceeded (no acoustic sig-
nal during resistance measurement, diode test or temperature
measurement).
Attention!
Observe the maximum input levels.
37
13a “R-H”
Range Hold
Range hold means the measurement range is not switched au-
tomatically (auto range), but by hand, manually
13b ‘ID-H”
14
15
16
17
18
-<-= diode test
((a)) =
AC = symbol for alternating voltage or current
II I II
= Battery symbol
Data Hold
symbol for acoustic continuity test
= minus sign, or symbol for negative polarity
If this symbol appears in the display, the battery must be chan-
ged
19 Various units of measurement
Contents
Introduction
Intended use
Operating elements (fold-out page)
Contents
Safety instructions
Presentation
Handling, putting into service
Performing measurements
Disposal
Rectification of faults
Service and calibration
Technical data and measurement tolerances
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Page
35
36
37
38
39
42
43
50
60
60
61
62
38
Safety information
Damage resulting from non-observance of this manual renders void
any claim under the guarantee! We accept no responsibility for
consequential damage.
We accept no responsibility for damage to property or injury to persons caused by improper operation or failure to
instructions. Such cases void the guarantee.
l This unit is constructed and tested in accordance with DIN 57
411 part
measuring devices or IEC 1010-I and left the factory in sound,
technically-safe condition. To maintain this condition and to ensure safe operation, it is essential for the user to observe the safety instructions and warning notes which are contained in these
operating instructions. The following symbols should be ob-
served:
:c.:
:.i&; .I.!.:
. .
:.:.;j:.
:.:::.::;::::. ,-::..::.
cr
A
.
. :
?
.:‘ii~..*~;$*
: : 1.). .y;:,..
A
IA/DE
:g..
=Attention!
.::.
=Read the operating instructions
:.:.>
0411 part I, safety precautions for electronic
Dangerous voltages! Danger to life!
obsen/e
the safety
CAT II
•l
l
Current measurements may only be carried out in circuits which
are themselves fused at 16 A or in which no voltage greater than
250 VDCNACrms or powers greater than 4000 VA can arise. The
measuring instrument must not be used in installations of Over-
voltage Category III in accordance with IEC 664. The measuring
instrument and instrument leads are not protected against arcing
(IEC 101 o-2-031, Section 13 I Of .I 01).
l
Measuring instruments and accessories are not toys and do not
belong in the hands of children!
=Overvoltage
=Safety class II
category II
.’
39
I Y
In commercial facilities the accident-prevention regulations of
the Industrial Employers’ Liability Association for electrical systems and equipment must be observed.
In schools, training facilities, hobby and self-help workshops, the
handling of measuring instruments must be supervised responsi-
bly by trained personnel.
When effecting replacements, it must be ensured that only fuses
of the specified type and specified current rating are used. The
use of a repaired fuse or the bridging of the fuse holder is not
permitted. To change the fuses, disconnect the measuring in-
strument from the circuit being measured and switch it off. Re-
move all connected leads and test probes. Select a suitable
crosspoint screwdriver and carefully open the housing. Remove
the defective fuse(s) and replace with identical type(s) and nomi-
nal current ratings.
0.8 A, quick-blow, 250 V; usual description: F 0.8 A / 250 V or
F800mAI250V and for the A range 15 A super fast-acting, 250 V;
usual description:
FFI
5 A/ 250 V.
Having successfully changed the fuse(s), carefully close and
screw the case up once more, in reverse order.
Only put the measuring instrument into operation once again
when the case is securely closed and screwed up.
Take particular care when dealing with voltages greater than 25
VAC or greater than 35 VDC. Even at these voltages it is possible
to receive a lethal electric shock if electrical conductors are tou-
ched.
Therefore, first of all switch off the voltage source to be mea-
sured, connect the measuring instrument to the voltage source,
set the required measurement range on the unit and only then
switch on the voltage source.
After completing measurements, switch off the voltage source
and remove the test leads from the voltage source connecting
points.
40
9
Before any voltage measurement, ensure that the measuring
instrument is not set to the current measuring range.
l
Before every change in measuring range, the test leads or adap-
ter must be removed from the object being measured.
l
Before each measurement check your measuring instrument and
test leads for damage.
l
For measurements, only use the test leads which are supplied
with the measuring instrument. Others should not be used.
l
To avoid electric shock, care should be taken during measure-
ment not to touch the test probes and the connections (points of
measurement), not even indirectly.
l The voltage between a chosen 4 mm socket of the unit and
ground may not exceed 500
l
The measuring instrument should not be used in areas or under
VDCNAC
rms.
adverse environmental conditions in which inflammable gas, fumes or dust are present or can occur. For your own safety it is
essential to avoid the measuring instrument or its wiring becoming damp or wet. Avoid operation in the immediate vicinity of:
a) strong magnetic fields (loudspeakers, magnets)
b) electromagnetic fields (transformers, motors, coils, relays,
contactors,
electromagnets, etc..)
c) electrostatic fields (charges/discharges)
d) transmission aerials or HF generators
l
Do not use the multimeter shortly before, during, or shortly after
a thunderstorm (lightning strike! / high energy overvoltages! Ensure without fail that the hands, shoes, clothing, floor and the
measuring instrument and its test leads, switches and components, etc. are dry.
l
If it can be assumed that safe operation is no longer possible,
then the unit must be switched off and protected against unintentional operation. It can be assumed that safe operation is no
41
longer possible if:
-
the unit shows visible signs of damage,
-
the unit no longer functions and
-
after prolonged storage under unfavourable conditions or
-
after severe transportation stress.
+
Never switch the unit. on immediately after it has been brought
from a cold into a warm area. The resultant condensation water
could damage the instrument. Allow the instrument to come to
room temperature before switching it on.
P’resentation
This 3 %-digit multimeter with bar graph display has several spe-
cial features which provide a complete picture for many measuring
tasks:
The unit has an AUTO RANGE feature, such that with different
measurements the currently-correct measuring range is always set.
In addition, the DMM can be connected to a PC with an appropriate cable (available as an option) via the built-in interface at its top
end. After installation of the appropriate software onto the PC
(available as an option), communication between the digital
meter and the PC becomes possible.
The 3
to a maximum of 3 digits after the decimal point. The Digital
meter ME-42 can be used universally in hobby, educational and
(non-industrial) commercial applications, etc.
3/4-digit
liquid crystal display (LCD) allows resolutions of up
multi-
Multi-
42
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