Isotech ILCM 03A User manual

Instruction Manual
ILCM 03A
AC Leakage Current Tester
FREN IT DE ES

EN 61010-2-032
CAT II 600V
CAT III 300V
Pollution Degree 2
Definition of Symbols:
Caution: Refer to Accompanying Documents
Caution: Risk of Electric Shock
Double Insulation
Overvoltage Category I (CAT I):
Equipment for connection to circuits in which measures are
taken to limit the transient overvoltages to an appropriate low
level.
Overvoltage Category II (CAT II):
Energy-consuming equipment to be supplied from the fixed
installation.
Overvoltage Category III (CAT III):
Equipment in fixed installations.
WARNING: If the clamp meter is used in a manner
Not specified by the manufacturer, the protection
Provided by the clamp meter may be impaired.

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TABLE OF CONTENTS
1. Features 1
2. Panel Description 2
3. Operation Instructions 4
3.1. AC Leakage Current Measurement 4
3.1.1. Leakage Current Flowing into Ground Conductor 4
3.1.2. Out of Balance Leakage Current 5
3.1.3. Using the 50/60 and Wide Selector 6
3.2. AC Load Current Measurement 6
3.3. AC Voltage Measurements 7
3.4. Resistance and Continuity Measurement 7
3.5. Relative Reading Measurements 8
3.6. Holding the LCD Reading 8
3.7. Finding the MAX/MIN Value 8
3.8. Auto-Power-Off 8
4. Specifications 10
5. Battery Replacement 12
6. Maintenance & Cleaning 12
1. Features
1. Accurate AC digital clamp meter for leakage current measurement.
2. 10µA high resolution on 40mA range.
3. Shield transformer jaws to minimize the effect of external stray
magnetic field.
4. Large jaw with 30 mm diameter.
5. Five Ranges (40mA, 400mA, 4A, 40A, 60A) for all application.
6. A filter circuit is designed to eliminate the effect of high frequency noise
and harmonics for AC current measurement.
7. Large 3 3/4 digits LCD
8. Fast bargraph display (30 times/sec.) for transient observation.
9. Continuity and frequency measurements.
10. Max/Min, Data Hold functions, and Relative Measurement
11. 600V overload protection for ohm measurement.
12. Easy single rotary switch for any function selection.

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2. Panel Description
1.Transformer Jaw
This is used to pick up current signal. To measure DC/AC current,
conductor must be enclosed by the jaw.
2.Transformer Trigger
This is used to open the jaw.
3.Function Selector Switch
This is used to select the function user desired, such as ACV, ACA, Ohm
and Continuity.
4.Frequency Selection Switch
At 50/60Hz position, only the low frequency signal is measured. At Wide
position, signal from 40 - 1KHz is measured.
5.Data Hold Button
Once this button is pushed, reading shall be held on the LCD. Press again
to release it. This button is not available in continuity function.
6.Max/Min Hold Button
This button is used to enable the maximum or minimum value to be
displayed and updated during measurement. Press once, minimum
value shall be displayed and updated. Press again, maximum value
shall be displayed and updated. The Zero/Relative function will be
disabled if Max/Min function is enabled. This button is not available in
continuity function.
7.Zero/Relative Button
Once this button is pressed, the current reading shall be set to zero and
be used as a zero reference value for all other subsequent measurement.
This function will be disabled when MAX/MIN function is enabled. This
button is not available in continuity function.

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8.LCD
This is a 3 3/4 digit Liquid Crystal Display with maximum indication of
3999. Function symbols, units, bargraph, sign, decimal points, low
battery symbols, max/min symbols, and zero symbol are included.
9.Low Battery Symbol
When this symbol appears, it means the battery voltage drops below the
minimum required voltage. Refer to Section V for battery replacement.
10.Zero/Relative Symbol
When this symbol appears, it means a reference value has been
subtracted from the actual reading. The reading shown is a offseted
value. Press and hold the zero button for 2 seconds to disable this
function.
11.Data Hold Symbol
Once the hold button is pressed, this symbol appears on LCD.
12.Bargraph
Bargraph has forty segments. It displays segments proportional to the
actual reading. Each segment represent one count.
13.Max/Min Hold Symbol
Once the max/min button is pressed, either MAX or MIN shall be
displayed on LCD
14.Continuity Symbol
If ohm and continuity function is selected, this symbol shall appears on
LCD.
15.Units Symbols
Once a function is selected, corresponding unit (V, Ω, A, or Hz) shall be
displayed on LCD.
16.VΩInput Terminal
This terminal is used as input for voltage, or ohm/continuity
measurements.
17.COM Terminal
This terminal is used as common reference input.
18.Hand Strap
Put your hand through the hole of hand strap to avoid accidental drop of
the clamp meter.

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3. Operation Instructions
3.1. AC Leakage Current Measurement
WARNING: Make sure that all the test leads are disconnected from the
meter's terminals for current measurement.
3.1.1. Leakage Current Flowing into Ground Conductor
a.Set the rotary switch at desired range.
b.Press the trigger to open the jaw and fully enclose the wire goes to
the ground. Make sure the two half jaws are properly closed.
c. Read the measured value from the LCD display.

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3.1.2. Out of Balance Leakage Current

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a.Set the rotary switch at desired range
b.Press the trigger to open the jaw and fully enclose all two
wires(single phase, two wires), three wires(three phases, three wires),
or four wires(three phases, four wires). Make sure the two half jaws
are properly closed.
c. Read the measured value from the LCD display.
3.1.3. Using the 50/60 and Wide Selector
50/60 Position
This clamp meter has very good frequency response due to the
electric property of the transformer jaws used. Therefore, the
measurement result contains not only the fundamental frequency of
50/60Hz but also the high frequencies and harmonics superimposed
on the fundamental frequency. To eliminate the effect of high
frequency noise, a low pass filter is designed to filter out high
frequency signal. To enable the filter, set the switch at the 50/60
position. The filter's cut-off frequency is set at 100Hz with an
attenuation characteristic of approx. 24dB/octave.
Wide Position
If the circuit under test is originated from a high frequency generating
device such as inverter, switching regulators, etc., then the switch
should be set at wide position to measure the signal which contains
the frequency from 40Hz - 1KHz.
To make sure the presence of high frequency signal, set the switch at
50/60 and wide position to see the difference. If the reading is very
different, it is certain that the high frequency signals or harmonics
present.
3.2. AC Load Current Measurement

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a.Set the rotary switch at desired range.
b. Press the trigger to open the jaw and fully enclose only one wire.
No air gap is allowed between the two half jaws.
c. Read the measured value from the LCD display.
3.3. AC Voltage Measurements
WARNING: Maximum input for DC V is 600, and for AC V is 600. Do
not attempt to take any voltage measurement that exceeds the limits.
Exceeding the limits could cause electrical shock and damage to the
clamp meter.
a. Set the rotary switch at 400V
b. Insert the test leads into the input jack.
c. Connect the test prods of the test leads in PARALLEL to the circuit
to be measured.
d. Read the measured value from the LCD display.
WARNING:Before taking any in-circuit resistance measurement, remove
power from the circuit being tested and discharge all the capacitors.
3.4. Resistance and Continuity Measurement
3.4.1.Set the rotary switch at Ω
3.4.2.Insert the test leads into the input jack.
3.4.3.Connect the test prods of the test leads to the two ends of the
resistor or circuit to be measured.

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3.4.4.Read the measured value from the LCD display.
3.4.5.If the resistance is lower than 40 Ω, a beeping sound shall be
heard.
3.5. Relative Reading Measurements
The zero button also can be used to make a relative measurement.
Once the button is pushed, the current reading is set to zero and a zero
symbol shall be displayed on LCD. All the subsequent measurement
shall be displayed as a relative value with respect to the value being
zeroed. Press the zero button for 2 seconds to return to normal mode.
3.6. Holding the LCD Reading
Press the HOLD button, then the reading shall be hold and kept on
LCD.
3.7. Finding the MAX/MIN Value
Press the MAX/MIN button to enable the maximum and minimum values
to be recorded and updated during measurement. Push the button
once, the maximum value shall be displayed and updated. The LCD
display toggles between the MAX and MIN values. To exit MAX/MIN
function, press and hold the MAX/MIN button for more than 2 seconds. .
3.8. Auto-Power-Off
The meter will turn itself off 15 minutes after power-on (A symbol of
APO is displayed in LCD). To turn it on again, user can either press any
button or turn the rotary switch. Also pressing any button or turning the
rotary switch will reset the 15 minute timer.
To disable the Auto-Power-Off function, hold the HOLD button while
NOTE: The ZERO button is disabled if ohm and continuity function is
selected.
NOTE: The HOLD button is disabled if ohm and continuity function is
selected.
NOTE: The MAX/MIN button is disabled if ohm and continuity function
is selected.

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turning on power.

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4. Specifications(23°C±5°C)
AC Current:
Accuracy Remarks
Range Resolutio
n 50/60 Hz Wide(40 - 1KHz)
40mA 10µA ±1.0%±3dgts ±2.0%±5dgts
400mA 100µA ±1.0%±3dgts ±2.0%±5dgts
4A 1mA ±1.0%±3dgts ±2.0%±5dgts
40A 10mA ±1.0%±3dgts ±2.0%±5dgts
60A(0-50A) 100mA ±1.5%±3dgts ±3.0%±5dgts
60A(50 -
60A)1100mA ±3.0%±5dgts ±3.5%±5dgts
1Though the meter can display up to 400A, it is not calibrated beyond 60A
AC Voltage:(Input Impedance: 10MΩ)
Accuracy
Overload
Protection
Range Resolutio n 50/60 Hz 40 - 1KHz
400V 0.1V ±1.5%±2dgts ±2.0%±4dgts AC 800V
Resistance (Ω) and Continuity:(open voltage 0.4V)
Range Resolutio
n Accuracy Beeping OL Protection
40-400Ω0.1Ω±1.0%±2dgts < 38.0 ΩAC 600V

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Indoor Use
Conductor Size: 30mm max. (approx.)
Battery Type: two 1.5V SUM-3
Display: 3 3/4 LCD with 40 seg. bargraph
Range Selection: manual
Overload Indication: OL
Power Consumption: 15 mA (approx.)
Low battery Indication:
Sampling Time: 3times/sec. (display)
30 times/sec. (bargraph)
Operating Temperature: -10°C to 50°C
Operating Humidity: less than 85% relative
Storage Temperature: -20°C to 60°C
Storage Humidity: less than 75% relative
Altitude up to 2000M
Dimension: 210mm (L) x 62.0mm (W) x 35.6mm (H)
8.3" (L) x 2.4" (W) x 1.4" (H)
Weight: 200g (battery included)
Accessories: Carrying bag x 1
Users manual x 1
1.5V battery x 2
Test leads x 1

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5. Battery Replacement
When the low battery symbol is displayed on the LCD, replace the old
batteries with two new batteries.
5.1.Turn the power off and remove the test leads from the clamp meter.
5.2.Remove the screw of the battery compartment.
5.3.Lift and remove the battery compartment.
5.4.Remove the old batteries.
5.5.Insert two new 1.5V SUM-3 batteries.
5.6.Replace the battery compartment and secure the screw.
6. Maintenance & Cleaning
Servicing not covered in this manual should only be performed by qualified
personnel. Repairs should only be performed by qualified personnel.
Periodically wipe the case with a damp cloth and detergent; do not use
abrasives or solvents.
Address of Agent, Distributor, Importer, or Manufacturer

Manuel d’utilisation
ILCM 03A
Testeur de Courant de Fuite
FREN IT DE ES

EN 61010-2-032
CAT II 600V
CAT III 300V
Niveau de pollution 2
Définition des symboles:
Mise en garde: voir la documentation accompagnant
l'appareil
Mise en garde: risque d'électrocution
Isolation double
Catégorie de surtension I (CAT I):
Matériels pour le branchement à des circuits dont la mesure
est prise pour limiter les surtensions transitoires à un niveau
minimum approprié.
Catégorie de surtension II (CAT II):
Appareils alimentés sur le courant secteur.
Catégorie de surtension III (CAT III):
Appareils en installations fixes.
MISE EN GARDE: Si le testeur à pince est utilisé
d'une manière qui n'est pas décrite par le fabricant,
il est possible que la protection qu'il procure soit
amoindrie.

1
TABLE DES MATIÈRES
1. Caractéristiques ……………………………………………………………1
2. Description des commandes ……………………………………………….2
3. Instructions d'utilisation ……………………………………………….4
3.1. Mesure de courant de fuite...........…………………………..........4
3.1.1. Fuite à la terre ……………………………………………….4
3.1.2. Courant de fuite déséquilibré …………………………….5
3.1.3. 50/60 Hz et plage étendue …………………………………..6
3.2. Mesure de charge c.a. ………………………………………...6
3.3. Mesure de tension c.a. …………………………………………7
3.4. Mesure de résistance et de continuité…………………………….7
3.5. Relevés relatifs ……………………………………………………...8
3.6. Pause de l'affichage ……………………………………………….8
3.7. Affichage des valeurs MAX/MIN …………………………………..8
3.8. Arrêt automatique ……………………………………………….8
4. Spécifications (23°C±5°C) ………………………………………………10
5. Changement des piles …………………………………………………….12
6. Entretien et nettoyage …………………………………………………….12
1. Caractéristiques
1. Testeur numérique de précision à pince de courant c.a. pour la
mesure de courants de fuite.
2. 10µRésolution élevée sur la plage 40mA.
3. Mâchoires blindées pour réduire l'effet de champs magnétiques
parasites externes.
4. Grandes mâchoires de 30 mm de diamètre.
5. Cinq plages (40 mA, 400 mA, 4 A, 40 A, 60 A) pour toutes les
fonctions.
6. Intègre un circuit de filtrage pour éliminer l'effet des bruits et des
harmoniques à haute fréquence lors de mesures de courant alternatif.
7. Grand écran à 3 3/4 chiffres.
8. Affichage rapide de graphique en barres (30 fois/sec.) pour une
observation en temps réel.
9. Mesure de continuité et de fréquence.
10.Fonctions Max/Min, et pause de l'affichage, et valeur de référence
11.Protection contre les surcharges 600 V pour les mesures de
résistance.
12.Simple commutateur tournant pour toutes les fonctions.

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2. Description des commandes
1. Mâchoires
Relève le courant. Pour mesurer le courant c.a. ou c.c., pincer le
conducteur avec les mâchoires.
2. Gâchette des mâchoires
Permet d'ouvrir les mâchoires.
3. Commutateur de fonction
Pour choisir la fonction, telle qu'intensité c.a., tension c.a., résistance
et continuité.
4. Commutateur de fréquence
Sur la position 50/60 Hz, seul les signaux de fréquence basse sont
mesurés. Sur la position étendue, les signaux entre 40 - 1 kHz sont
mesurés.
5. Bouton de pause de l'affichage
Appuyer sur ce bouton pour conserver une mesure à l'écran.
Rappuyer pour relâcher. Ce bouton n'est pas disponible en fonction
de la continuité.
6. Bouton d'affichage des valeurs Max/Min
Ce bouton permet d'afficher les valeurs minimale et maximale. Elles
sont mises à jour en temps réel. Appuyer une fois pour afficher la
valeur minimum en temps réel. Rappuyer une fois pour afficher la
valeur maximum en temps réel. La fonction zéro ou un parent sera
désactivée si la fonction Max/Min est activée. Ce bouton n'est pas
disponible en fonction de la continuité.

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7. Bouton Mise à zéro/Référence
Ce bouton met l'affichage à zéro et la valeur relevée est utilisée
comme référence pour toutes les mesures suivantes. Cette fonction
est désactivée pendant le mode d'affichage Max/Min. Ce bouton n'est
pas disponible en fonction de la continuité.
8. Affichage
Affichage à cristaux liquides à 3 3/4 chiffres, valeur maximum
affichable: 3999. Comprend les symboles suivants: fonctions, unités,
graphique en barres, signe, points décimaux, piles faibles, max/min et
zéro.
9. Symbole de piles faibles
Lorsque ce symbole apparaît, le niveau des piles est inférieur à la
tension nécessaire. Voir Section V pour changer les piles.
10.Symbole Mise à zéro/Référence
Ce symbole indique que la valeur affichée est relative à une valeur de
référence. La valeur affichée est décalée et n'est pas le véritable
relevé. Appuyer sur le bouton de mise à zéro pendant 2 secondes
pour désactiver cette fonction.
11.Symbole de pause de l'affichage
Ce symbole indique que le bouton de pause de l'affichage a été
activé.
12.Graphique en barres
Le graphique en barres comprend quarante segments. Il représente
la valeur mesurée. Chaque segment représente une unité.
13.Symboles d'affichage des valeurs Min/Max
Les symboles MAX et MIN indiquent que le mode d'affichage
max/min est activé.
14.Symbole continuité
Ce symbole indique les modes résistance et continuité.
15.Symboles d'unités
Lorsqu'une fonction est activée, l'unité correspondante (V, Ω, A, ou
Hz) est affichée.
16.Borne VΩ
Cette borne est utilisée pour relever une tension ou une résistance ou
continuité.
17.Borne COM
Cette borne sert d'entrée de référence commune.
18.Dragonne
Permet de ne pas laisser tomber le testeur.

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3. Instructions d'utilisation
3.1.Mesure de courant de fuite
MISE EN GARDE: Vérifier qu'aucun fil n'est branché sur les bornes du
testeur pour cette mesure.
3.1.1. Fuite à la terre
a. Régler la plage avec le commutateur tournant.
b. Appuyer sur la gâchette pour ouvrir les mâchoires, et
complètement attraper le fil de mise à la terre. Vérifier que
les deux mâchoires sont en contact.
c. Lire la valeur mesurée sur l'affichage.