Sealey MM19 Digital Multimeter 7 Function User Manual

1. Uvod

This manual provides instructions for the safe and effective use of the Sealey MM19 Digital Multimeter. The MM19 is a general-purpose multimeter designed for measuring various electrical parameters, including AC and DC voltage, DC current, resistance, audible continuity, and diode/transistor verification. Please read this manual thoroughly before operation and retain it for future reference.

2. Sigurnosne informacije

Always observe basic safety precautions when using electrical test equipment to reduce the risk of fire, electric shock, or personal injury. This device complies with IEC 1010 and CE CAT II safety standards.

• Do not exceed the maximum input limits for any function. Refer to the specifications section for details.
• Nikad ne primjenjivati ​​voltage to the meter when the rotary switch is set to Resistance (Ω), Diode, Continuity, or Current (A) functions.
• Budite oprezni kada radite sa voltagiznad 30V AC RMS, 42V peak ili 60V DC. Ove voltagpredstavljaju opasnost od strujnog udara.
• Ensure the test leads are in good condition, without cracked or broken insulation.
• Always connect the common (COM) test lead first and disconnect it last.
• Disconnect power to the circuit under test before measuring resistance or continuity.
• Odmah zamijenite bateriju when the low battery indicator appears to ensure accurate readings.

3. Proizvod je gotovview

The Sealey MM19 Digital Multimeter features a clear LCD display, a central rotary switch for function selection, and input jacks for test leads.

The Sealey MM19 Digital Multimeter, shown with its yellow casing, large LCD display, rotary function switch, and red and black test leads connected to the input jacks.

Komponente:

• LCD ekran: Large (46 x 25mm) digital display for reading measurements.
• Okretni prekidač: Koristi se za odabir željene funkcije i raspona mjerenja.
• Ulazni priključak VΩmA: Za voltage, resistance, and current measurements up to 200mA.
• 10ADC Input Jack: For high current measurements up to 10A DC (unfused).
• COM ulazni priključak: Zajednički (negativni) ulaz za sva mjerenja.
• hFE utičnica: For transistor (NPN/PNP) testing.
• Test kablovi: Red (positive) and Black (negative) leads for connecting to circuits.

4. Podešavanje

4.1. Instalacija baterije

The Sealey MM19 Multimeter requires a 9V battery for operation. If the display does not illuminate or shows a low battery indicator, the battery needs to be installed or replaced.

1. Provjerite je li multimetar isključen.
2. Pronađite poklopac odjeljka za baterije na stražnjoj strani uređaja.
3. Remove the screw(s) securing the cover and carefully lift it off.
4. Connect a new 9V battery to the battery clips, observing correct polarity.
5. Stavite bateriju u odjeljak i vratite poklopac, pričvrstivši ga vijkom (vijcima).

4.2. Povezivanje ispitnih vodova

The multimeter is supplied with a pair of test leads (red and black).

• Umetnite crni mjerni kabel u COM (Zajednički) ulazni priključak.
• Za većinu mjerenja (volumentage, resistance, low current), insert the crveni ispitni kabel u VΩmA ulazni priključak.
• For high DC current measurements (up to 10A), insert the crveni ispitni kabel u 10ADC ulazni priključak.

5. Uputstvo za upotrebu

To operate the multimeter, select the desired function and range using the rotary switch.

5.1. Mjerenje DC Voltage (DCV)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the desired DCV range (e.g., 200m, 2000m, 20, 200, 1000). Start with the highest range if the voltage je nepoznato.
3. Spojite mjerne kablove preko komponente ili strujnog kola koje se mjeri.
4. Pročitajte voltage vrijednost na LCD zaslonu.

5.2. Mjerenje AC Voltage (ACV)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the desired ACV range (e.g., 200, 750). Start with the highest range if the voltage je nepoznato.
3. Spojite mjerne kablove preko komponente ili strujnog kola koje se mjeri.
4. Pročitajte voltage vrijednost na LCD zaslonu.

5.3. Measuring DC Current (DCA)

1. Za struje do 200mA: Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Za struje do 10A: Insert the red lead into the 10ADC jack and the black lead into the COM jack.
3. Set the rotary switch to the desired DCA range (e.g., 200μ, 2000μ, 20m, 200m, 10A). Start with the highest range if the current is unknown.
4. Isključite strujno kolo. Otvorite strujni krug u kojem treba mjeriti struju.
5. Spojite multimetar serijski sa strujnim kolom.
6. Priključite napajanje na strujno kolo i očitajte trenutnu vrijednost na LCD ekranu.

5.4. Mjerenje otpora (Ω)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the desired Resistance (Ω) range (e.g., 200, 2000, 20k, 200k, 2000k).
3. Osigurajte da je strujno kolo koje se testira bez napona.
4. Spojite mjerne kablove preko komponente koju treba mjeriti.
5. Očitajte vrijednost otpora na LCD ekranu.

5.5. Test zvučnog kontinuiteta

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Set the rotary switch to the continuity symbol (speaker icon).
3. Osigurajte da je strujno kolo koje se testira bez napona.
4. Spojite mjerne kabele preko komponente ili žice.
5. If continuity exists (low resistance), the meter will emit an audible tone. The display will show the resistance value.

5.6. Diode/Transistor Verification Mode (hFE)

1. Insert the red lead into the VΩmA jack and the black lead into the COM jack for diode testing.
2. Set the rotary switch to the diode symbol.
3. Spojite crveni kabel na anodu, a crni kabel na katodu diode. Na ekranu će se prikazati vrijednost direktne struje.tagPad e. Zamijenite mjesta vodova; ekran bi trebao prikazivati ​​'OL' (otvorena petlja) za ispravnu diodu.
4. For transistor hFE measurement, insert the transistor leads (Emitter, Base, Collector) into the appropriate sockets (E, B, C) in the hFE test socket, ensuring correct NPN or PNP type selection.
5. Očitajte hFE vrijednost na LCD ekranu.

6. Održavanje

6.1. Čišćenje

Obrišite mjerač casing s oglasomamp krpom i blagim deterdžentom. Ne koristite abrazivna sredstva ili rastvarače. Prije upotrebe provjerite je li mjerač potpuno suh.

6.2. Zamjena baterije

Refer to Section 4.1 for battery installation instructions. Replace the 9V battery when the low battery indicator appears on the display to maintain measurement accuracy.

7. Otkrivanje problema

• Bez prikaza: Check battery installation and ensure the battery has sufficient charge.
• 'OL' ili '1' na ekranu: This usually indicates an over-range condition or an open circuit. Select a higher range or check connections.
• Netačna očitanja: Ensure the correct function and range are selected. Check test lead connections and battery condition.
• No Continuity Tone: Verify the circuit is de-energized and the leads are making good contact.

8. Specifikacije

9. Garancija i podrška

For warranty information or technical support, please refer to the documentation provided with your purchase or contact Sealey customer service directly. Keep your proof of purchase for any warranty claims.