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4

  3.  In manual range, if the voltage magnitude to be measures is not know beforehand, 

select the highest range.

 

  In manual range mode, when the meter shows the overrange symbol “OL“ a higher 

range has to be selected

  4. Connect the test leads across the source or load to be measured – Read the read-

ing on the display. For DC voltage measurement, the polarity of the red test lead 

connection will be indicated as well.

   In small range, the meter may display an unstable reading when the test leads 

have not been connected to the load to be measured. It is normal and will not 

affect the measurements.

Note: To avoid damage to the meter, don´t measure a voltage which exceeds 600Vdc 

(for DC voltage measurement) or 600 Vac( for AC voltage measurement).

 If 600 V is reached, the measuring must be terminated immediately. Otherwise 

multimeter can be damaged or electrical shock may occur. 

Measuring Current

  1.  Connect the black test lead to the “COM“ jack. If the current to be measured is less 

than 200 mA, connect to red test lead to the “INPUT“ jack. If the current is between 

200 mA and 10 A, connect the red test lead to the “10 A“ jack instead.

  2. Set the range switch to µA , mA  or A  range. If the current magnitude to be 

measured is not know beforehand, set the range switch to the highest range 

position and then reduce it range by range until satisfactory resolution is obtained.

  3. Select DC current measurement or AC current measurement with the “FUNC.“ 

Button

  4. Select autorange or manual range with the “RANGE“ button. In manual range, if 

the current magnitude to be measured is not know beforehand, select the highest 

range.

  5. Connect test leads in series with the circuit to be measured.

  6.  Read the reading on the display. For DC current measurement, the polarity of the 

red test lead connection will be indicated as well.

Note: When the display shows the overrange symbol “OL“ a higher range has to 

be selected.

 Never measure current if voltage in open circuit is higher than 250V. Measur-

ing of current with higher voltage in open circuit may damage the product (fuse 

burning, electrical discharge) or electrical shock.

 When measuring, please make sure that correct range is used!

Mesuring Current (with clamp, only optional)

  1. If you want measure DC current, you must use the DC clamp.

If you want measure AC current, you must use the AC clamp.

  2.  Connect the negative(-) output lead of the select clamp to the “COM“ jack, connect 

to positive (+)output lead of the clamp to the “INPUT“ jack.

  3. Set the range switch to position.

  4. Select DC current measurement or AC current measurement with the “FUNC.“ 

button

  5. Select auto range or manual range with “RANGE“ button.

In manual range, if the current magnitude to be measured is not know beforehand, 

select the highest range.

  6. Clamp the cable to be measured with the clamp

Note: Each time only one cable should be clamped and the cable should be in the 

center of the clamp jaws.

  7.  Read the reading on the display. For DC current measurement, the polarity of the 

positive (+) output lead of the clamp will be indicated as well.

Note:

  1.  In manual range mode, when the meter shows the overrange symbol “OL“ a higher 

range has to be selected

  2. Don´t touch the circuit under test with hand or skin.

  3. Matching problem about the meter and the sensitivity of the clamp:

   a) The sensitivity of the matching clamp is 0,1A/0,1mV. If you use a matching 

clamp, the present indicated value is same to the measured value.

 

 b) If you use a clamp whose sensitivity does n´t equal is 0,1A/0,1mV, you should 

multiply the present reading by a factor which is determined by the used clamp, 

the result is the measured value. To determine the factor, please refer to the 

instruction of the clamp which you use.

Mesuring Resistance

  1.  Connect the black test lead to the “COM“ jack and the red test lead to the “INPUT“ 

jack. (Note: The polarity of the red test lead is po“).

  2. Set the range switch to Ω range 

  3. Select auto range or manual range with the “RANGE“ button.

 

  In manual range mode, when the meter shows the overrange symbol “OL“ a higher 

range has to be selected.

  4. Connect the test leads across the load to be measured.

  5. Read the reading on the display.

Note: 

  1. For resistance measurement >1MΩ, the meter may také a few second to stabilize 

reading. This is normal for high-resistance measurement.

  2. When the input is not connected, i.e. at open circuit, zhe symbol “OL“ will be 

displayed as an overrange indicator.

  3. Before measuring in-circuit resistance, be sure that the circuit under test has all 

power removed and all capacitors are fully discharged.

Measuring Capacitance (only EM420B)

  1.  Connect the black test lead to the “COM“ jack and the red test lead to the “INPUT“ 

jack.

  2. Set the range switch to desired“1000µF“,“20µF“ or “nF“ position.

  3. Select auto range or manual range with the “RANGE“ button.

  4. Connect the test leads across the capacitor to be measured. Make sure thet the 

polarity of connection is observed. (The redtest lead should be connected to the 

anode of the capacitor, the black one should be connected to the cathode of the 

capacitor) – Read the reading on the display.

   In small range, before the test leads are connected to the capacitor, the display 

may show a reading, it is normal because of the stray capacitance of the test leads 

and input circuit of the meter. It will not affect the measurement accuracy.

Continuity Test

  1.  Connect the black test lead to the “COM“ jack and the red test lead to the “INPUT“ 

jack. (Note: The polarity of the red test lead is po“).

  2. Set the range switch to range.

  3.  Press the “FUNC.“ Button to select continuity measurement mode and the symbol 

will appear as an indicator.

  4. Connect the test leads to the circuit to be measured.

  5. If the circuit resistance is lower than about 30Ω, the built-in buzzer will sound.

Diode

  1.  Connect the black test lead to the “COM“ jack and the red test lead to the “INPUT“ 

jack. (Note: The polarity of the red test lead is po“).

  2. Set the range switch to 

 range.

  3.  Press the “FUNC.“ Button to select diode measurement mode and the symbol 

 

will appear as an indicator.

  4. Connect the red test lead to the anode of the diode to be tested and the black 

test lead to the cathode.

  5. The meter will show the approximate forward voltage of the diode. 

 

 If the connections are reversed, “OL“ will be shown on the display.

Transistor test

  1. Set the range switch to h

FE

 position

  2. Refer to the figure 2, connect the adapter to the “COM“ jack an the “INPUT“ jack. 

Don´t reverse the connection.

  3. Identify whether the transistor is NPN or PNP type and locate emitter, base and 

collector lead. Insert the leads of the transistor to be tested into to proper holes 

of the transistor test socket of the adapter.

  4. LCD display will show the approximate h

FE

 value

Measuring Temperature

  1. Set the range switch to Temp range

  2.  Press the “FUNC.“ button to select °C or °F mode, and the symbol °C or °F mode 

and symbol “°C“ nebo “°F“ will appear as an indicator.

  3.  Insert the black (or “-“) plug of the K type thermocouple to the “COM“ jack and the 

red (or “+“) plug to the “INPUT“ jack.

  4. Carefully touch the end the thermocouple to the object to be measured.

  5. Wait a while, read the reading on the display.

Battery Test (only EM420A, C)

  1.  Connect the black test lead to the “COM“ jack and the red test lead to the “INPUT“ 

jack. (Note: The polarity of the red test lead is po“).

  2. According to the different type off the battery (1,5V, 3V, 9V) to be tested, set the 

range switch to the desired BATT range.

  3. Connect the test leads to the battery to be tested.

  4. Read the reading on the display. The polarity of the red test lead connection will 

be indicated.

Auto Power Off

If you don´t operate the meter for about 15 minutes, it will turn of automatically. To 

turn on it again, just rotate the range switch or press a button.

If you press the button to arouse the meter after it turns off automatically, the automatic 

power-off function will be disabled.

Battery replacement

Before battery change, test leads must be disconnected off the measured circuit/ 

equipment.

When symbol appears on the display, it shows that the battery should be replaced. 

To replace the battery, use an appropriate screwdriver to gently rotate the rotary lock 

on the battery cover by 90° in the indicated direction (refer to figure 3). Remove bat-

tery cover, replace the exhausted batteries with new bateries of the same type(AAA 

type). Reinstall the batery cover and gently rotate the rotary lock by 90° clockswise 

to lock the battery cover.

Note: Excess force will cause damage to the rotary lock.

Don´t use a screwdriver which is not big enough.

Fuse replacement

Before fuse change, test leads must be disconnected off the measured circuit/ 

equipment.

Fuse rarely needs replacement and is blown almost as a result of operator’s errors. This 

meter uses a fuse: F 250mA L 250V, fast action.

Summary of Contents for EM420B

Page 1: ...w emos eu 2 3 1 M0420 EM420B GB MULTIMETER CZ MULTIMETR SK MULTIMETER PL MULTIMETR HU MULTIMETR SI MULTIMETER SRB HR BIH MULTIMETAR DE MULTIMETER UA RO MULTIMETRU LT MULTIMETRAS LV MULTIMETRS 130 185...

Page 2: ...III and IV CAUTION To avoid possible damage to the meter or to the equipment under test follow these guidelines Disconnectcircuitpoweranddischargeallhighvoltagecapacitorsbeforetesting resistance conti...

Page 3: ...nge switch to or position Select auto range or manual range with the RANGE button Operating Temperature 0 C to 40 C 75 RH Storage Temperature 10 C to 50 C 85 RH Dimensions 158 75 35mm Weight about 200...

Page 4: ...is not connected i e at open circuit zhe symbol OL will be displayed as an overrange indicator 3 Before measuring in circuit resistance be sure that the circuit under test has all power removed and a...

Page 5: ...e vysokonap ov kondenz tory P ed m en m se p esv d te e je kruhov p ep na rozsahu m en ve spr vn poloze V dn m p pad neprov d jte dn zm ny v m c m rozsahu poot en mkruhov hop ep na eprogram m en vpr b...

Page 6: ...V Maxim ln nap t v rozpojen m m en m obvodu mus b t 250V St dav proud Rozsah Rozli en P esnost 200 A 0 1 A 1 5 5 2000 A 1 A 20 mA 0 01 mA 200 mA 0 1 mA 2 A 0 001 A 3 10 10 A 0 01 A Ochrana p ed p et e...

Page 7: ...m lybysen sobithodnotou kter je ur en t mito pou it mi kle t mi aby hodnota byla odpov daj c nam en Nedot kejte se rukou ani jinou st t la m en ho obvodu M en odporu 1 Zapojtekoncovku ern ho z porn h...

Page 8: ...o ak je uvo nen Vyme te bat riu ako n hle sa na displeji objav varovn indik tor vybit bat rie SK pou it hrub s ly hroz po kozen oto n ho z mku Vym te slab baterie za nov s p edepsan mi parametry Dopor...

Page 9: ...alebohomo no vypn op podr an m tla tka po dobu 2 sek nd 10 Tla tko po stla en d jde k podr aniu pr ve nameranej hodnoty a na displejisaobjav n pis Preukon eniestla teop tla tkoan piszmizne 11 Tla tko...

Page 10: ...rozmedz 200 mA a 10 A pripojte erven merac hrot do zdierky 10A 2 Kruhov mprep na omnastavterozsahmeran hopr duv A mA aleboA 3 Priru nomnastaven aprinezn mejhodnotepr duv dynastavtenajvy rozsah ktor zn...

Page 11: ...automatick ho vypnutia sa vyrad V mena bat ri Ak sa objav na displeji symbol bat rie je nutn bat rie vymeni Pre v menu pou ite raubov k odpovedaj ci ve kosti men typ m e po kodi z mok a jemne to te o...

Page 12: ...ciowych Nie korzystamy z tego multimetru do pomiar w zaliczanych do kategorii III i IV Uwaga Z multimetru EM420B korzystamy tylko tak jak wyspecyfikowano poni ej W przeciw nymraziemo edoj douszkodzeni...

Page 13: ...kolejny pomiar mo na wykona dopiero po 15 minutach Spadek napi cia zakres 200 A 20 mA i 2 A 20 mV Zakres 2000 A 200 mA i 10A 200mV Zakres cz stotliwo ci 40 Hz do 400Hz Uwaga Jest to rednia warto odpow...

Page 14: ...dzie Warto mierzonego pr du pojawi si na wy wietlaczu Je eli jest to pr d sta y a a czerwony przew d pomiarowy jest pod czony do bieguna dodatniego to wskazywana jest dodatnia warto nat enia pr du W p...

Page 15: ...osoby czniezdzie mi kt rychpredyspozycje fizyczne umys owealbomentalneorazbrakwiedzyido wiadczenianiepozwalaj na bezpieczne korzystanie z urz dzenia je eli nie s one pod nadzorem lubnie zosta y poins...

Page 16: ...km r se saz ramk r k vezet k pess g nek tesztje 4 A multim ter kikapcsol sa lenyom sa kikapcsolja s bekapcsolja 5 Terjedelem s funkci tkapcsol k v nt funkci t s terjedelmet v laszt 6 10A aljzat a pir...

Page 17: ...az ellen ll s rt ke 30 a 100 k z tt tal lhat nem biztos hogy megsz lal a berreg Fesz lts g m r se 1 Csatlakoztassa a m r m szer fekete m nusz m r vezet k csatlakoztat s t a COM aljzatba sapiros pozit...

Page 18: ...r hegyet a di da kat dj ra A k perny n megjelenik a di da k r lbel li fesz lts ge tereszt ir nyban A polarit s cser je ut n a k perny n az OL felirat jelenik meg Tranzisztor m r se er s t s 1 A k rka...

Page 19: ...tealiskladi itemultimetravokoljuzvisokotemperaturo pra nostjo in vla nostjo Ne priporo amo uporabe naprave v okolju kjer obstaja mo no magnetsko polje ali kjer obstaja nevarnost eksplozije ali po ara...

Page 20: ...proti preobremenitvi velikost A in mA varovalka F 250 mA L 250 V velikost 10 A brez varovalke Maksimalni vstopni tok Vti nica INPUT maks 200 mA Vti nica 10 A maks 10 A pri merjenju toka ki je vi ji o...

Page 21: ...edno najvi jo velikost kijozni ujtedoprikazaustreznevrednostitoka esenazaslonuprika e simbol OL je potrebno prestaviti na vi ji velikost 6 Merjenje s kle ami opravite tako da je merjeni vodnik po zapr...

Page 22: ...u itenavodilo Predodprtjemmultimetraizklju itemerilnevrviceod vti nic S tem prepre ite mo nost po kodbe z elektri nim tokom Opozorilo Zastalnoza itopredobremenitvijouporabitevarovalkozapredpisanitokin...

Page 23: ...truje do 200 mA 9 Tipkapozadinskogosvjetljenjazaslona pritisniteipodr ite2sekunde e seupalitipozadinskoosvjetljenje Pozadinskoosvjetljenjeseautomatskiisklju uje nakon 15 sekundi ili ako ponovno dr ite...

Page 24: ...ek namjestite najvi i raspon koji smanjuj ak dok se ne prika e pripadaju a vrijednost struje Kada se a zaslonu pojavi simbol OL neophodno je prebaciti na vi i raspon 4 Pomo u tipke FUNC odaberite mjer...

Page 25: ...lo eg rukovanja Osigura uvijek mijenjate za isti tip sa istim parametrima F 250 mA 250V brza reakcija Osigura se nalazi ispod pokrova baterija Nakon izmjene pokrov baterije pa ljivo nametnite i zatvor...

Page 26: ...agen in der Anweisung wo dieses Zeichen verwendet ist Beschreibung des Ger ts Der Multimeter EM420B stammt von der Reihe der Kompaktger te mit einem 3 5 Ziffernanzeiger die f r die Gleichstrom und Wec...

Page 27: ...fnetenMesskreismuss 250Vbetragen 250V Gleichstrom Zangenmessung optionales Zubeh r f r EM420A B Bereich Aufl sung Genauigkeit Messung 200 A 0 1 mV 0 1 A 1 2 5 Messung 1000 A 1 mV 1 A 1 2 5 berlastungs...

Page 28: ...smessung mittels der Zange ist 0 1A 0 1mV Falls Sie eine an gepassteZangeverwenden dannistderangegebeneWertmitdemgemessenen Wert identisch b BeiderVerwendungeinerZange derenEmpfindlichkeitkeine0 1A 0...

Page 29: ...vermeiden Sie eine Stromunfall Bevor Sie das Multimeterverdeck ffnen trennen Sie die Messspitzen vom getesteten Kreis Reinigen Sie den K rper des Multimeters mit einem feuchten Tuch und einem feinenWa...

Page 30: ...0 C 75 10 C 50 C 85 3 1 5 AAA F250mA 250V 5 20 OL LCD CAT II 600 158 75 35 200 18 C 28 C 75 DC 200 mV 0 1 mV 0 8 5 2 0 001 0 8 5 20 0 01 200 0 1 600 1 1 5 10 M 600 DC AC rms 200 mV 250V DC AC rms 600...

Page 31: ...200 0 1 1 2 5 2 k 0 001 k 1 5 20 k 0 01 k 200 k 0 1 k 2 M 0 001 M 1 2 5 20 M 0 01 M 1 5 5 0 25 250 DC AC rms 20 C 1000 C 1 C 20 C 0 C 5 4 0 C 400 C 1 3 400 C 1000 C 2 3 0 F 1800 F 1 F 0 F 50 F 5 4 50...

Page 32: ...0 1mV 1 COM a INPUT 2 3 AUTO RANGE OL 4 1 M OL EM420B 1 COM a INPUT 2 1000 F 20 F nF 3 AUTO RANGE 4 1 COM a INPUT 2 3 FUNC 4 30 1 COM a INPUT 2 3 FUNC 4 OL 1 hFE 2 COM aINPUT 2 3 NPN PNP a hFE 1 Temp...

Page 33: ...rrezultatedem surareanormale nufolosi imultimetrul Poate fi ntrerupt siguran a Dac nu sunte i siguri de cauza defec iunii contacta i centrul de repara ii Nu m sura i cu multimetru tensiune mai mare i...

Page 34: ...a se anuleaz i inscrip ia dispare n unele intervale func ia de nregistrare a valorii maxime nu este accesibil Parametrii tehnici Ecran LCD 1999 cifre3 5 cuindicareaautomat apolarit ii Metoda de m sura...

Page 35: ...tonului RANGE n intervalul corespunz tor al valorii de curent preconizate 6 Conecta iconductoriidem surarecusonde nseriecucircuitulcurentuluim surat Valoareacurentuluim suratseafi eaz peecran Dac este...

Page 36: ...sau aparatul m surat nlocuirea siguran ei Arderea siguran ei multimetrului este cauzat de obicei de eroarea utilizatorului nlocui i ntotdeauna siguran a cu alta de acela i tip cu parametri identici F...

Page 37: ...ikli tik dr gn skudur l ir veln plovikl APRA YMAS is skaitmeninis multimetras yra kompaktinis 3 5 skai i multimetras skirtas matuoti nuolatin DC ir kintam AC tamp nuolatin DC ir kintam AC srov var tem...

Page 38: ...elektros sm g Srov s matavimas 1 Prijunkite juod laid prie COM jungties o raudon prie INPUT jungties 2 Nustatykite FUNCTION RANGE perjung j A mA ar A pozicij Jei srov s stiprumasi ankstone inomas nus...

Page 39: ...aip 30 skamb s zumeris Diodo matavimas 1 Prijunkitejuod laid prieCOMjungties oraudon prieINPUTjungties Raudono laido poliarumas teigiamas 2 Nustatykite FUNCTION RANGE perjung j pozicij 3 Paspauskite m...

Page 40: ...lsto us termin lus funkcijas un diapazonu prieks veicamajiem m r jumiem Pirms str vas m r anas p rbaudiet ier ces dro inat jus un izsl dziet des baro anu pirms savienojat testeri ar di PirmsFunkciju D...

Page 41: ...stera vadu INPUT spraudn DC spriegums diapazons rezol cija precizit te 200mV 0 1mV 0 8 5 2V 0 001V 0 8 5 20V 0 01V 200V 0 1V 600V 1V 1 5 Ieejas pretest ba 10M P rslodzes aizsardz ba 600 V DC AC rms 20...

Page 42: ...bas m r jumiem 2 Kad ieejo ais nav pievienots pie atv rtas des simbols OL b s redzams ekr n 3 Pirms mer jumu veik anas des pretest b p rliecinieties ka dei ir no emta baro ana un kolektori ir piln ba...

Page 43: ...ihes trauc jumiem kam da tipa ier ces lieto ana nav dro a ja vien to nelieto kop ar personu kas uzrauga dro bu Neizmetiet o ier ci kop ar sadz ves atkritumiem Nododiet to speci lajos elektronikas sav...

Page 44: ...ni druga e ozna eno velja garancija na ozemeljskem obmo ju Republike Slovenije 9 Proizvajaleczagotavljaprotipla ilupopravilo vzdr evanjeblaga nadomestnedeleinpriklopneaparate tri leta po poteku garan...

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