Sealey MM19 Digital Multimeter 7 Function User Manual

1. Ievads

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. Drošības informācija

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.

• Nepārsniedziet maksimālo ievades ierobežojumu for any function. Refer to the specifications section for details.
• Nekad nepiemērojiet voltage to the meter when the rotary switch is set to Resistance (Ω), Diode, Continuity, or Current (A) functions.
• Esiet piesardzīgs, strādājot ar voltages above 30V AC RMS, 42V peak, or 60V DC. Šie sējtagtas rada trieciena risku.
• Pārliecinieties, vai testa vadi ir labā stāvoklī, 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.
• Nekavējoties nomainiet akumulatoru when the low battery indicator appears to ensure accurate readings.

3. Produkts beidziesview

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.

Sastāvdaļas:

• LCD displejs: Large (46 x 25mm) digital display for reading measurements.
• Rotējošais slēdzis: Izmanto, lai izvēlētos vēlamo mērīšanas funkciju un diapazonu.
• VΩmA ieejas ligzda: Sējtage, resistance, and current measurements up to 200mA.
• 10ADC Input Jack: For high current measurements up to 10A DC (unfused).
• COM ievades ligzda: Kopīga (negatīva) ieeja visiem mērījumiem.
• hFE ligzda: For transistor (NPN/PNP) testing.
• Testa vadi: Sarkans (pozitīvs) un melns (negatīvs) vads savienošanai ar ķēdēm.

4. Iestatīšana

4.1. Akumulatora uzstādīšana

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. Pārliecinieties, vai multimetrs ir izslēgts.
2. Atrodiet bateriju nodalījuma vāciņu ierīces aizmugurē.
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. Place the battery inside the compartment and replace the cover, securing it with the screw(s).

4.2. Testa vadu pievienošana

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

• Ievietojiet melns testa vads iekšā COM (Kopējā) ieejas ligzda.
• Vairumam mērījumu (tilp.tage, resistance, low current), insert the sarkans testa vads iekšā VΩmA ievades ligzda.
• For high DC current measurements (up to 10A), insert the sarkans testa vads iekšā 10 ADC ievades ligzda.

5. Lietošanas instrukcijas

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

5.1. Measuring 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 nav zināms.
3. Pievienojiet testa vadus mērāmajai sastāvdaļai vai ķēdei.
4. Izlasiet sējtage vērtība LCD displejā.

5.2. Maiņstrāvas mērīšana 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 nav zināms.
3. Pievienojiet testa vadus mērāmajai sastāvdaļai vai ķēdei.
4. Izlasiet sējtage vērtība LCD displejā.

5.3. Measuring DC Current (DCA)

1. For currents up to 200mA: Insert the red lead into the VΩmA jack and the black lead into the COM jack.
2. For currents up to 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. Izslēdziet strāvas padevi ķēdei. Open the circuit where the current is to be measured.
5. Savienojiet multimetru virknē ar ķēdi.
6. Pieslēdziet ķēdei strāvu un nolasiet strāvas vērtību LCD displejā.

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. Pārliecinieties, ka testējamā ķēde ir atslēgta no strāvas.
4. Pievienojiet testa vadus mērāmajai sastāvdaļai.
5. Nolasiet pretestības vērtību LCD displejā.

5.5. Skaņas nepārtrauktības pārbaude

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. Pārliecinieties, ka testējamā ķēde ir atslēgta no strāvas.
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. Pievienojiet sarkano vadu diodes anodam un melno vadu diodes katodam. Displejā tiks parādīts tiešais spriegums.tage kritums. Apmainiet vadus vietām; displejā jāparādās 'OL' (atvērta cilpa), kas norāda uz diodes darbību.
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. Nolasiet hFE vērtību LCD displejā.

6. Apkope

6.1. Tīrīšana

Noslaukiet skaitītāju casing ar reklāmuamp drānu un maigu mazgāšanas līdzekli. Nelietojiet abrazīvus līdzekļus vai šķīdinātājus. Pirms lietošanas pārliecinieties, vai mērierīce ir pilnībā sausa.

6.2. Akumulatora nomaiņa

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. Traucējummeklēšana

• Nav displeja: Pārbaudiet akumulatora uzstādīšanu un pārliecinieties, vai akumulatoram ir pietiekams uzlādes līmenis.
• 'OL' or '1' on Display: This usually indicates an over-range condition or an open circuit. Select a higher range or check connections.
• Nepareizi lasījumi: Ensure the correct function and range are selected. Check test lead connections and battery condition.
• Nav nepārtrauktības signāla: Verify the circuit is de-energized and the leads are making good contact.

8. Specifikācijas

9. Garantija un atbalsts

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.