Velleman DCM140 User manual

DCM140
CAT III 600 V
USER MANUAL 3
HANDLEIDING 16
MODE D'EMPLOI 31
MANUAL DEL USUARIO 45
BEDIENUNGSANLEITUNG 59
INSTRUKCJA OBSŁUGI 73
MANUAL DO UTILIZADOR 88

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USER MANUAL
1. Introduction
To all residents of the European Union
Important environmental information about this product
This symbol on the device or the package indicates that disposal
of the device after its lifecycle could harm the environment. Do
not dispose of the unit (or batteries) as unsorted municipal
waste; it should be taken to a specialized company for recycling.
This device should be returned to your distributor or to a local
recycling service. Respect the local environmental rules.
If in doubt, contact your local waste disposal authorities.
Thank you for choosing Velleman! Please read the manual thoroughly before
bringing this device into service. If the device was damaged in transit, do
not install or use it and contact your dealer.
2. Used Symbols
AC (Alternating Current)
DC (Direct Current)
Both AC and DC
Risk of Electric shock. A potentially hazardous voltage is
possible.
Caution: risk of danger, refer to the user manual for safety
information.
Warning: a hazardous condition or action that may result in
injury or death
Caution: condition or action that may result in damage to the
meter or equipment under test
Double insulation (class 2-protection)
Earth
Fuse
Capacitor
Diode
Continuity

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3. General Guidelines
Refer to the Velleman®Service and Quality Warranty on the last pages of
this manual.
This symbol indicates: Read instructions
Not reading the instructions and manual can lead to damage,
injury or death.
This symbol indicates: Danger
A hazardous condition or action that may result in injury or death
This symbol indicates: Risk of danger/damage
Risk of a hazardous condition or action that may result in
damage, injury or death
This symbol indicates: Attention; important information
Ignoring this information can lead to hazardous situations.
WARNING: To avoid electrical shock always disconnect the test
leads prior to opening the housing. To prevent fire hazards, only
use fuses with the same ratings as specified in this manual.
Remark: refer to the warning on the battery compartment
Avoid cold, heat and large temperature fluctuations. When the
unit is moved from a cold to a warm location, leave it switched
off until it has reached room temperature. This to avoid
condensation and measuring errors.
Protect this device from shocks and abuse. Avoid brute force
when operating.
Pollution degree 2-device. For indoor use only. Keep this device
away from rain, moisture, splashing and dripping liquids. Not for
industrial use. Refer to §8 Pollution degree.
Keep the device away from children and unauthorised users.
Risk of electric shock during operation. Be very careful when
measuring live circuits.
There are no user-serviceable parts inside the device.
Refer to an authorized dealer for service and/or spare parts.

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This is an installation category CAT III measuring
instrument. Refer to §7 Overvoltage/installation category.
Read this addendum and the manual thoroughly. Familiarise
yourself with the functions of the device before actually using it.
All modifications of the device are forbidden for safety reasons.
Damage caused by user modifications to the device is not
covered by the warranty.
Only use the device for its intended purpose. Using the device in
an unauthorized way will void the warranty. Damage caused by
disregard of certain guidelines in this manual is not covered by
the warranty and the dealer will not accept responsibility for any
ensuing defects or problems.
Application around and removal from UNINSULATED HAZARDOUS
LIVE conductors is permitted.
The current sensor must not be used on UNINSULATED
conductors.
4. Maintenance
There are no user-serviceable parts inside the device.
Refer to an authorized dealer for service and/or spare parts.
Before performing any maintenance activities, disconnect the test leads
from the jacks.
For instructions on replacing battery or fuse, refer to §11 Battery and fuse
replacement.
Do not apply abrasives or solvents to the meter. Use a damp cloth and mild
detergent for cleaning purposes.
5. During Use
Risk of electric shock during operation. Be very careful when
measuring live circuits.
•Never exceed the limit value for protection. This limit value is listed
separately in the specifications for each range of measurement.
•Do not touch unused terminals when the meter is linked to a circuit,
which is being tested.
•Never use the meter with CAT III installations when measuring voltages
that might exceed the safety margin of 600 V above earth ground.
•Set the range selector at its highest position if the intensity of the
charge to be measured is unknown beforehand.

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•Disconnect the test leads from the tested circuit before rotating the
range selector in order to change functions.
•When carrying out measurements on a TV set or switching power
circuits, always remember that the meter may be damaged by any high
amplitude voltage pulses at test points.
•Always be careful when working with voltages above 60 VDC or 30 VAC
rms. Keep your fingers behind the probe barriers at all times during
measurement.
•Never perform resistance, diode or continuity measurements on live
circuits. Make sure all capacitors in the circuit are depleted.
•Always hold the device behind the finger guard (see General
Description, nr. 12).
•Comply with the local and national safety regulations. Use personal
protective equipment, such as approved rubber gloves, face protection
and flame-resistant clothing, to prevent shock and arc blast injury
where hazardous live conductors are exposed.
•Do not use this device to measure a current with a frequency
above 1 kHz.
•Only use this device as specified in this manual in order not to
compromise the protection supplied by the device.
6. General Description
Refer to the illustration on page 2 of this manual:
1. NCV sensor
2. Clamp jaws
3. Flashlight
4. NCV LED indicator
5. Flashlight switch
6. Clamp trigger
7. Selection button
8. Backlight button
9. Display
3 ¾ digits
10. Function buttons
11. Input jacks
12. Finger guard
7. Overvoltage/Installation Category
DMMs are categorized depending on the risk and severity of transient
overvoltage that might occur at the point of test. Transients are short-lived
bursts of energy induced in a system, e.g. caused by lightning strike on a
power line.

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The existing categories according EN 61010-1 are:
CAT I
A CAT I-rated meter is suitable for measurements on protected
electronic circuits that are not directly connected to mains power, e.g.
electronics circuits, control signals…
CAT
II
A CAT II-rated meter is suitable for measurements in CAT I-
environments and mono-phase appliances that are connected to the
mains by means of a plug and circuits in a normal domestic
environment, provided that the circuit is at least 10 m apart from a
CAT III- or 20 m apart from a CAT IV-environment. E.g. household
appliances, portable tools…
CAT
III
A CAT III-rated meter is suitable for measurements in CAT I- and
CAT II-environments, as well as for measurements on (fixed) mono-
or poly-phased appliances which are at least 10 m apart from of a
CAT IV-environment, and for measurements in or on distribution level
equipment (fuse boxes, lighting circuits, electric ovens).
CAT
IV
A CAT IV-rated meter is suitable for measuring in CAT I-, CAT II- and
CAT III-environments as well as on the primary supply level.
Note that for all measurements on equipment for which the supply
cables run outdoors (either overhead or underground) a CAT IV
meter must be used.
Warning:
This device was designed in accordance with EN 61010-1 installation
category CAT III 600 V. This implies that certain restrictions in use apply
that are related to voltages and voltage peaks which can occur within the
environment of use. Refer to the table above.
This device is only suitable for measurements up to 600 V in
CAT III
8. Pollution Degree
IEC 61010-1 specifies different types of pollution environments, for which
different protective measures are necessary to ensure safety. Harsher
environments require more protection, and the protection against the
pollution which is to be found in a certain environment depends mainly on
the insulation and the enclosure properties. The pollution degree rating of
the DVM indicates in which environment the device may be used.
Pollution
degree 1
No pollution or only dry, nonconductive pollution occurs. The
pollution has no influence. (only to be found in hermetically
sealed enclosures)
Pollution
degree 2
Only nonconductive pollution occurs. Occasionally, temporary
conductivity caused by condensation is to be expected.(home
and office environments fall under this category)

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Pollution
degree 3
Conductive pollution occurs, or dry nonconductive pollution
occurs that becomes conductive due to condensation that is
to be expected. (industrial environments and environments
exposed to outside air - but not in contact with precipitation)
Pollution
degree 4
The pollution generates persistent conductivity caused by
conductive dust or by rain or snow. (exposed outdoor
environments and environments where high humidity levels
or high concentrations of fine particles occur)
Warning: This device was designed in accordance with EN 61010-1
pollution degree 2. This implies that certain restrictions in use apply that
are related to pollution which can occur within the environment of use. Refer
to the table above.
This device is only suitable for measurements in Pollution
degree class 2 environments.
9. Specifications
This device is not calibrated when purchased!
Regulations concerning environment of use:
Use this meter only for measurements in CAT I, CAT II and CAT III
environments (see §7).
Use this meter only in a pollution degree 2 environment (see §8).
Ideal working conditions include:
temperature: 0 °C to 40 °C (32 °F to 104 °F)
relative humidity: max. 80 %
altitude: max. 2000 m (6560 ft)
IP rating ........................................................................... IP20
voltage ........................................................................... 600 V
power supply ....................................... 3 x 1.5 V AAA/LR03 (incl.)
display............................................................ LCD, 3999 counts
display dimensions ...................................................24 x 37 mm
over-range ..........................................................................yes
continuity buzzer..................................................................yes
diode test............................................................................yes
low-battery indication ...........................................................yes
ranging mode ......................................................... auto/manual
data hold ............................................................................yes
backlight .............................................................................yes
auto power-off .....................................................................yes
dimensions..................................................... 194 x 72 x 35 mm
weight (with battery) .........................................................230 g
storage environment
temperature ................................................. -20 °C to 60 °C
humidity ............................................................ < 90 % RH
test lead probe....... CAT III 1000 V / CAT IV 600 V, 10 A; L = 84 cm

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9.1 AC VOLTAGE
Do not measure circuits that may contain voltages
> 600 V AC or DC
range
resolution
accuracy
400 mV
0.1 mV
± (1.0 % + 10)
4 V
0.001 V
± (1.0 % + 5)
40 V
0.01 V
400 V
0.1 V
600 V
1 V
± (1.2 % + 5)
Impedance: 10 MΩ, max. input voltage: 600 V DC or AC rms
Frequency range: TRMS 40 Hz-1000 Hz
9.2 DC VOLTAGE
Do not measure circuits that may contain voltages
> 600 V AC or DC
range
resolution
accuracy
400 mV
0.1 mV
± (0.5 % + 3)
4 V
0.001 V
± (0.8 % + 5)
40 V
0.01 V
400 V
0.1 V
600 V
1 V
± (1.0 % + 5)
Impedance: 10 MΩ, max. input voltage: 600 V DC or AC rms
9.3 AC + DC CURRENT
Do not measure circuits that may contain voltages
> 600 V AC or DC
range
resolution
accuracy
40 A
0.01 A
± (2.5 % + 10)
400 A
0.1 A
600 A
1 A
Frequency range: TRMS 40 Hz-1000 Hz

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9.4 RESISTANCE
Do not conduct resistance measurements on live circuits
range
resolution
accuracy
400 Ω
0.1 Ω
± (1.0 % + 10)
4 kΩ
0.001 kΩ
± (0.8 % + 5)
40 kΩ
0.01 kΩ
400 kΩ
0.1 kΩ
4 MΩ
0.001 MΩ
40 MΩ
0.01 MΩ
± (2.0 % + 10)
Overload protection: 250 V DC or AC rms
9.5 DIODE + AUDIBLE CONTINUITY
Do not conduct diode and continuity measurements on
live circuits
range
function
displays approx. forward voltage of the diode, reverse
shows OL
built-in buzzer sounds if resistance < 30 Ω
Overload protection: 250 V DC or AC rms
9.6 TEMPERATURE
range
-20 °C - 1000 °C
resolution
1 °C
accuracy
-20 °C - 0 °C
± (5.0 % + 4)
0 °C - 400 °C
± (2.0 % + 3)
400 °C - 1000 °C
± (3.0 % + 3)
range
0 °F - 1800 °F
resolution
1 °F
accuracy
0 °F - 50 °F
± (5.0 % + 4)
50 °F - 750 °F
± (2.0 % + 3)
750 °F - 1800 °F
± (3.0 % + 3)
Overload protection: 250 V DC or AC rms

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9.7 FREQUENCY
Do not conduct frequency measurements on live circuits
range
resolution
accuracy
10 Hz
0.01 Hz
± (0.5 % + 2)
100 Hz
0.1 Hz
1 kHz
0.001 kHz
10 kHz
0.01 kHz
100 kHz
0.1 kHz
1 MHz
0.001 MHz
10 MHz
0.01 MHz
Overload protection: 250 V DC or AC rms
9.8 CAPACITANCE
Do not conduct frequency measurements on live circuits
range
resolution
accuracy
10 nF
0.01 nF
± (4.0 % + 25)
100 nF
0.1 nF
± (4.0 % + 15)
1 µF
0.001 µF
10 µF
0.01 µF
100 µF
0.1 µF
1 mF
1 µF
± (5.0 % + 25)
10 mF
10 µF
100 mF
100 µF
Overload protection: 250 V DC or AC rms
10. Operation
10.1 AC VOLTAGE MEASUREMENT
Do not measure circuits that may contain voltages > 600 V AC or DC
Use extreme caution when measuring voltages higher than 60 VDC
or 30 VAC rms.
Always place your fingers behind the protective edges of the test
probes while measuring!

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1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection button to the desired “ ” position.
3. Connect the test leads across the source under measurement.
4. Read the voltage value on the LCD display.
10.2 DC VOLTAGE MEASUREMENT
Do not measure circuits that may contain voltages > 600 V AC or DC
Use extreme caution when measuring voltages higher than 60 VDC
or 30 VAC rms.
Always place your fingers behind the protective edges of the test
probes while measuring!
1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection button to the desired “ ” position.
3. Connect the test leads across the source under measurement.
4. Read the voltage value on the LCD display.
10.3 CURRENT MEASUREMENT
Do not measure circuits that may contain voltages > 600 V AC or DC
Use extreme caution when measuring voltages higher than 60 VDC
or 30 VAC rms.
1. Set the selection button to the desired “A” position
2. Press the RAN function button to select the desired range.
3. Open the clamp by pressing the clamp trigger and insert the cable
(one cable only) to be measured into the jaw.
4. Close the clamp and read the current value on the LCD display.
Notes
•Before measurement, disconnect the test leads from the meter.
•An over-range is indicated by OL.

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10.4 RESISTANCE MEASUREMENT
Do not conduct resistance measurements on live circuits. Make sure
all capacitors in the circuit are depleted.
1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection button to the desired “”position.
3. Press the SEL function button to select the “” measurement.
4. Connect the test leads across the source under measurement.
5. Read the voltage value on the LCD display.
Notes
•If the resistance being measured is connected to a circuit, turn off the
power and discharge all capacitors before applying the test probes.
•An over-range is indicated by OL.
10.5 DIODE MEASUREMENT
Do not conduct diode measurements on live circuits. Make sure all
capacitors in the circuit are depleted.
1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection switch to the desired “” position.
3. Press the SEL function button to select “” measurement.
4. Connect the test leads across the source under measurement.
5. Read the value on the LCD display.
10.6 CONTINUITY TEST
Do not conduct continuity measurements on live circuits. Make sure
all capacitors in the circuit are depleted.
1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection switch to the desired “” position.
3. Press the selection button to choose the “” measurement.
4. Connect the test leads to two points of the circuit to be tested. If
continuity exists, the built-in buzzer will sound.

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10.7 TEMPERATURE MEASUREMENT
1. Connect the black test lead to the “COM” jack and the red terminal of
the K-type temperature probe to the input jack.
2. Set the selection switch to the desired “°C/°F” position.
3. Press the selection button to choose the “°C” or “°F” measurement.
4. Place the temperature probe across the source under measurement.
5. Read the voltage value on the LCD display.
10.8 NCV (NON-CONTACT VOLTAGE) MEASUREMENT
Due to external interference sources, thus function may cause wrong
voltage detection. Use the results as reference only.
1. Set the selection switch to the desired “NCV” position.
2. Contact the top part of the meter across the source under
measurement. The LED will flash and the audible signal will sound if
voltage is detected.
3. Read the signal on the LCD display.
10.9 LINE (LIVE WIRE RECOGNITION) TEST
1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection switch to the desired “LINE” position.
3. Hold the insulation part of the black test lead and do not put it into the
circuit under measurement. Contact the red test lead across the live
wire and the built-in buzzer will sound; contact the earth line and the
built-in buzzer will not sound.
Note
•When there is a leakage in the circuit (approx. 15 V), the built-in buzzer
will sound even if the red test lead contacts the earth line.
10.10 CAPACITANCE MEASUREMENT
Do not conduct capacity measurements on live circuits. Make sure all
capacitors in the circuit are depleted.
1. Connect the black test lead to the “COM” jack and the red test lead to
the input jack.
2. Set the selection switch to the desired “” position.
3. Press the selection button to choose the “” measurement.
4. Connect the test leads to two points of the circuit to be tested.
5. Read the capacitance value on the LCD display.

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10.11 AUTO POWER OFF
When the meter has been turned on 15 minutes without any activity, the
meter will automatically switch off.
10.12 DATA HOLD
Press the HOLD button to lock the displayed value. Press again to exit.
10.13 MAX HOLD
Press the MAX button to enter the maximum data hold mode. Press again to
exit.
11. Battery Replacement
WARNING: To avoid electrical shock always disconnect the test
leads prior to opening the housing. To prevent fire hazards, only use
fuses with the same ratings as specified in this manual.
Remark: refer to the warning on the battery compartment
There are no user-serviceable parts inside the device.
Refer to an authorized dealer for service and/or spare parts.
Disconnect the test leads from the test points and remove the test
leads from the measuring terminals before replacing the batteries or
fuses.
•When" " is displayed, the battery should be replaced.
•Fuses rarely need replacement and blown fuses almost always result
from human error.
To replace the battery:
•Switch of the meter.
•Remove the screw at the back of the case and gently open the housing.
•Remove the old battery and insert a new one.
•Close the housing and fasten the screw.
Battery: 3x AAA/LR03, make sure to respect the polarity

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12. Troubleshooting
If the device acts abnormal while measuring, this means that the internal
fuse is defective.
Keep in mind that a low battery level could lead to incorrect measurements.
Replace the battery on a regular basis.
(tip: the reduced luminosity of the backlight/LCD display indicates a low
battery level)
Use this device with original accessories only. Velleman nv cannot
be held responsible in the event of damage or injury resulting from
(incorrect) use of this device. For more info concerning this product
and the latest version of this manual, please visit our website
www.velleman.eu. The information in this manual is subject to
change without prior notice.
© COPYRIGHT NOTICE
The copyright to this manual is owned by Velleman nv. All
worldwide rights reserved. No part of this manual may be copied,
reproduced, translated or reduced to any electronic medium or otherwise
without the prior written consent of the copyright holder.
HANDLEIDING
1. Inleiding
Aan alle ingezetenen van de Europese Unie
Belangrijke milieu-informatie betreffende dit product
Dit symbool op het toestel of de verpakking geeft aan dat, als het
na zijn levenscyclus wordt weggeworpen, dit toestel schade kan
toebrengen aan het milieu. Gooi dit toestel (en eventuele
batterijen) niet bij het gewone huishoudelijke afval; het moet bij
een gespecialiseerd bedrijf terechtkomen voor recyclage. U moet
dit toestel naar uw verdeler of naar een lokaal recyclagepunt brengen.
Respecteer de plaatselijke milieuwetgeving.
Hebt u vragen, contacteer dan de plaatselijke autoriteiten
betreffende de verwijdering.
Dank u voor uw aankoop! Lees deze handleiding grondig door voor u het
toestel in gebruik neemt. Werd het toestel beschadigd tijdens het transport,
installeer het dan niet en raadpleeg uw dealer.

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2. Gebruikte symbolen
AC (wisselstroom)
DC (gelijkstroom)
Zowel wissel- als gelijkstroom
Elektrocutiegevaar. Er kan een potentieel gevaarlijke
spanning aanwezig zijn.
Opgelet: Risico op gevaar, lees de gebruikershandleiding.
Waarschuwing: een gevaarlijke toestand of actie die kan
leiden tot letsel of de dood
Opgelet: Een onvoorzichtig gebruik kan de multimeter of het
toestel dat u wilt testen beschadigen.
Dubbele isolatie (klasse II-bescherming)
Aarding
Zekering
Condensator
Diode
Continuïteit
3. Algemene richtlijnen
Raadpleeg de Velleman® service- en kwaliteitsgarantie achteraan deze
handleiding.
Dit symbool betekent: Instructies lezen
Het niet lezen van deze instructies en de handleiding kan leiden
tot beschadiging, letsel of de dood.
Dit symbool betekent: Gevaar
Een gevaarlijke toestand of actie die kan leiden tot letsel of de
dood
Dit symbool betekent: Risico op gevaar/schade
Risico op het ontstaan van een gevaarlijke toestand of actie die
kan leiden tot schade, letsel of de dood

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Dit symbool betekent: Opgelet; belangrijke informatie
Het niet in acht nemen van deze informatie kan leiden tot een
gevaarlijke toestand.
WAARSCHUWING: Om elektrische schokken te vermijden,
ontkoppel altijd de meetsnoeren alvorens de behuizing te
openen. Om brand te voorkomen, gebruik enkel zekeringen met
dezelfde specificaties zoals aangegeven in deze handleiding.
Opmerking: zie waarschuwing op de achterkant van het toestel
Vermijd koude, hitte en grote temperatuurschommelingen. Als
het toestel van een koude naar een warme omgeving verplaatst
wordt, laat het toestel dan eerst voldoende op temperatuur
komen. Dit om meetfouten en condensvorming te vermijden.
Bescherm tegen schokken. Vermijd brute kracht tijdens de
bediening.
Toestel met vervuilingsgraad 2. Enkel geschikt voor gebruik
binnenshuis! Bescherm het toestel tegen regen, vochtigheid en
opspattende vloeistoffen. Niet geschikt voor industrieel gebruik.
Zie §8 Vervuilingsgraad.
Houd dit toestel uit de buurt van kinderen en onbevoegden.
Elektrocutiegevaar tijdens het gebruik van deze
multimeter. Wees voorzichtig tijdens het meten van een circuit
onder spanning.
Er zijn geen onderdelen in het toestel die door de gebruiker
gerepareerd kunnen worden.
Contacteer uw verdeler voor eventuele reserveonderdelen.
Dit toestel valt onder installatiecategorie CAT III. Zie
§7 Overspanning-/installatiecategorie.
Lees het addendum en deze handleiding zorgvuldig door. Leer
eerst de functies van het toestel kennen voor u het gaat
gebruiken.
Om veiligheidsredenen mag u geen wijzigingen aanbrengen.
Schade door wijzigingen die de gebruiker heeft aangebracht aan
het toestel valt niet onder de garantie.

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Gebruik het toestel enkel waarvoor het gemaakt is. Bij
onoordeelkundig gebruik vervalt de garantie. De garantie geldt
niet voor schade door het negeren van bepaalde richtlijnen in
deze handleiding en uw dealer zal de verantwoordelijkheid
afwijzen voor defecten of problemen die hier rechtstreeks
verband mee houden.
Toepassing of het verwijderen in de buurt van NIET-
GEÏSOLEERDE ACTIEVE geleiders is toegestaan.
Niet gebruiken op NIET-GEÏSOLEERDE geleiders.
4. Onderhoud
Er zijn geen onderdelen in het toestel die door de gebruiker
gerepareerd kunnen worden.
Contacteer uw verdeler voor eventuele reserveonderdelen.
Ontkoppel de meetsnoeren van de aansluitingen voor het onderhoud of de
reiniging.
Voor informatie over het vervangen van de batterijen en de zekering, zie
§11 Batterijen en zekeringen vervangen.
Gebruik nooit agressieve schuur- of oplosmiddelen. Reinig de meter enkel
met een vochtige doek en een zachte detergent.
5. Tijdens het gebruik
Elektrocutiegevaar tijdens het gebruik van deze multimeter.
Wees voorzichtig tijdens het meten van een circuit onder spanning.
•Overschrijd nooit de grenswaarden. Deze waarde wordt afzonderlijk in
de technische gegevens van elk meetbereik vermeld.
•Raak geen ongebruikte aansluitingen aan wanneer de meter gekoppeld
is aan een meetcircuit.
•Gebruik de meter nooit voor categorie III-installaties bij
spanningsmetingen die de veiligheidsmarge van 600 V boven het
massapotentiaal (kunnen) overschrijden.
•Plaats de bereikschakelaar in de hoogste stand indien u de intensiteit
van de belasting niet op voorhand kent.
•Ontkoppel de meetsnoeren van het meetcircuit alvorens u aan de
draaischakelaar draait.
•Wanneer u metingen uitvoert op een tv of een schakelende voeding,
mag u niet vergeten dat een sterke stroomstoot ter hoogte van de
geteste punten de meter kan beschadigen.

DCM140
V. 04 –10/12/2019 20 ©Velleman nv
•Wees uiterst voorzichtig bij metingen > 60 VDC of > 30 VAC rms. Houd
tijdens metingen uw vingers achter de beschermingsrand van de
meetpennen.
•Voer nooit weerstands-, diode- of continuïteitsmetingen uit in circuits
waarop spanning aanwezig is. Zorg ervoor dat alle condensatoren in het
circuit volledig ontladen zijn.
•Houd uw vingers steeds achter de beschermingsrand wanneer u het
toestel gebruikt (zie Algemene omschrijving, nr. 12).
•Respecteer de lokale en nationale veiligheidsvoorschriften. Gebruik
persoonlijke bescherming (rubberen handschoenen,
gezichtsbescherming en vlamwerende kleding) om schokken en letsels
door vlambogen te voorkomen bij open stroomgeleiders.
•Gebruik dit toestel niet voor stroommetingen hoger dan 1 kHz.
•Gebruik dit toestel uitsluitend zoals beschreven in deze handleiding, zo
niet is het mogelijk dat de veiligheidsvoorzieningen niet de voorziene
bescherming bieden.
6. Algemene omschrijving
Raadpleeg de afbeeldingen op pagina 2 van deze handleiding:
1. Contactloze spanningsdetector (NCV)
2. Stroomklem
3. Zaklamp
4. NCV-ledindicator
5. Aan/uit-knop zaklamp
6. Trekker
7. Keuzeschakelaar
8. Achtergrondverlichting
9. Display
3 ¾digits
10. Functieknoppen
11. Ingangsaansluitingen
12. Beschermingsrand
7. Overspannings-/installatiecategorie
DMM’s worden opgedeeld volgens het risico op en de ernst van
spanningspieken die kunnen optreden op het meetpunt. Spanningspieken
zijn kortstondige uitbarstingen van energie die geïnduceerd worden in een
systeem door bv. blikseminslag op een hoogspanningslijn.
De bestaande categorieën volgens EN 61010-1 zijn:
CAT I
Een CAT I-meter is geschikt voor metingen op beschermde
elektronische circuits die niet rechtstreeks verbonden zijn met het
lichtnet, bv. elektronische schakelingen, stuursignalen…