Sealey MM19 Digital Multimeter 7 Function User Manual

1. Įvadas

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. Saugos informacija

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.
• Niekada netaikyti ttage to the meter when the rotary switch is set to Resistance (Ω), Diode, Continuity, or Current (A) functions.
• Būkite atsargūs dirbdami su voltagesant didesnei nei 30 V AC RMS, 42 V pikinei vertei arba 60 V DC. Šie ttagtai kelia šoko pavojų.
• 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.
• Nedelsdami pakeiskite bateriją kai pasirodo išsikrovusio akumuliatoriaus indikatorius, kad užtikrintumėte tikslius rodmenis.

3. Produktas baigtasview

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.

Komponentai:

• LCD ekranas: Large (46 x 25mm) digital display for reading measurements.
• Sukamasis jungiklis: Naudojamas norint pasirinkti norimą matavimo funkciją ir diapazoną.
• VΩmA Input Jack: Už ttage, resistance, and current measurements up to 200mA.
• 10ADC Input Jack: For high current measurements up to 10A DC (unfused).
• COM įvesties lizdas: Bendras (neigiamas) įėjimas visiems matavimams.
• hFE lizdas: For transistor (NPN/PNP) testing.
• Bandymo laidai: Raudonas (teigiamas) ir juodas (neigiamas) laidai, skirti prijungti prie grandinių.

4. Sąranka

4.1. Akumuliatoriaus įdėjimas

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. Įsitikinkite, kad multimetras yra IŠJUNGTAS.
2. Įrenginio gale suraskite baterijų skyriaus dangtelį.
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. Įdėkite bateriją į skyrių ir uždėkite dangtelį, pritvirtindami jį varžtu (-ais).

4.2. Bandymo laidų prijungimas

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

• Įdėkite juodas bandymo laidas į COM (Bendra) įvesties lizdas.
• Daugumai matavimų (tūriotage, resistance, low current), insert the raudonas bandymo laidas į VΩmA įvesties lizdas.
• For high DC current measurements (up to 10A), insert the raudonas bandymo laidas į 10 ADC įvesties lizdas.

5. Naudojimo instrukcijos

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

5.1. Nuolatinės srovės įtampos matavimastage (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 nežinomas.
3. Prijunkite bandymo laidus prie matuojamo komponento arba grandinės.
4. Perskaitykite ttage reikšmė LCD ekrane.

5.2. Matavimas 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 nežinomas.
3. Prijunkite bandymo laidus prie matuojamo komponento arba grandinės.
4. Perskaitykite ttage reikšmė LCD ekrane.

5.3. Measuring DC Current (DCA)

1. Srovėms iki 200 mA: Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. Srovėms iki 10 A: 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. Išjunkite grandinės maitinimą. Atidarykite grandinę, kurioje bus matuojama srovė.
5. Prijunkite multimetrą nuosekliai prie grandinės.
6. Įjunkite grandinę ir nuskaitykite srovės vertę LCD ekrane.

5.4. Measuring Resistance (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. Įsitikinkite, kad bandomoji grandinė yra atjungta nuo įtampos.
4. Prijunkite bandymo laidus prie matuojamo komponento.
5. Nuskaitykite varžos vertę LCD ekrane.

5.5. Garsinio tęstinumo testas

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. Įsitikinkite, kad bandomoji grandinė yra atjungta nuo įtampos.
4. Connect the test leads across the component or wire.
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. Connect the red lead to the anode and the black lead to the cathode of the diode. The display will show the forward voltage kritimas. Apkeiskite laidus; ekrane turėtų būti rodoma „OL“ (atvira kilpa), tai reiškia, kad diodas veikia gerai.
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. Nuskaitykite hFE vertę LCD ekrane.

6. Priežiūra

6.1. Valymas

Nuvalykite skaitiklį casing su reklamaamp šluoste ir švelniu plovikliu. Nenaudokite abrazyvinių medžiagų ar tirpiklių. Prieš naudodami įsitikinkite, kad matuoklis yra visiškai sausas.

6.2. Baterijos keitimas

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. Problemų sprendimas

• Nėra ekrano: Patikrinkite akumuliatoriaus įdėjimą ir įsitikinkite, kad akumuliatorius yra pakankamai įkrautas.
• 'OL' or '1' on Display: This usually indicates an over-range condition or an open circuit. Select a higher range or check connections.
• Neteisingi skaitymai: 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. Specifikacijos

9. Garantija ir palaikymas

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.