MASTECH MAS830L Digital Multimeter User Manual

1. Киришүү

Thank you for choosing the MASTECH MAS830L Digital Multimeter. This device is a compact, battery-powered, handheld digital multimeter designed for measuring DC and AC voltage, DC current, resistance, diode, and continuity. It features a 2000-count display, data hold function, low battery indication, and a continuity buzzer. This manual provides essential information for safe and effective operation of your multimeter.

2. Коопсуздук маалыматы

To ensure safe operation and service of the meter, follow these instructions carefully. Failure to observe these safety warnings can result in severe injury or death.

• Always ensure the function switch is in the correct position before making any measurements.
• Баалангандан ашык колдонбоңузtage, as marked on the meter, between the terminals or between any terminal and earth ground. The maximum input for AC/DC Voltage 600 В.
• Том менен иштөөдө өтө этият болуңузtag60V DC же 30V AC RMS жогору. Мындай томtagшок коркунучун жаратат.
• Электр чынжырын ажыратып, бардык жогорку көлөмдү чыгарыңызtage capacitors before measuring resistance or continuity.
• Эч качан чынжырдагы ток күчүн вольт менен өлчөңүзtage present unless the meter is connected in series with the load.
• Do not operate the meter if it appears damaged or if the insulation on the test leads is compromised.
• Батареянын капкагын ачардан мурун эсептегичтен сыноо өткөргүчтөрүн алып салыңыз.
• The meter is designed for CAT II 600V overvoltage категориясы.

3. Продукт бүтүп калдыview

The MASTECH MAS830L Digital Multimeter features a clear LCD display, a rotary function switch, and multiple input jacks for various measurements.

Сүрөт 3.1: Алдыңкы view of the MASTECH MAS830L Digital Multimeter, showing the LCD display, rotary switch, and input terminals.

3.1 Негизги компоненттер:

• LCD дисплей: Өлчөө көрсөткүчтөрүн, бирдиктерин жана функциянын көрсөткүчтөрүн көрсөтөт.
• Функция которуу: Rotary switch to select the desired measurement function (e.g., V~, V-, A-, Ω, Diode, Continuity).
• "HOLD" Button: Дисплейдеги учурдагы окууну токтотот.
• "COM" Jack: Common input terminal for all measurements. Connect the black test lead here.
• "VΩmA" Jack: Том үчүн киргизүү терминалыtage, resistance, and current measurements up to 200mA. Connect the red test lead here for these functions.
• "10A" Jack: Input terminal for high current measurements (up to 10A). Connect the red test lead here for 10A DC current measurements. This input is fused.

4. Орнотуу

4.1 Батареяны орнотуу:

The MASTECH MAS830L requires two LR44 batteries (included). If the low battery indicator appears on the display, replace the batteries promptly to ensure accurate readings.

1. Ensure the multimeter is turned OFF and disconnect all test leads from the input terminals.
2. Батарея уясынын капкагын эсептегичтин арткы жагында табыңыз.
3. Батареянын капкагын бекитүүчү буроону алып салуу үчүн бурагычты колдонуңуз.
4. Carefully remove the cover and replace the old batteries with new LR44 batteries, observing the correct polarity (+ and -).
5. Батареянын капкагын ордуна коюп, аны бурама менен бекитиңиз.

4.2 Connecting Test Leads:

Always connect the black test lead to the "COM" (Common) input jack. Connect the red test lead to the appropriate input jack based on the measurement you intend to make:

• Voltage (V), Resistance (Ω), Diode, and Continuity measurements, connect the red lead to the "VΩmA" jack.
• For DC Current measurements up to 200mA, connect the red lead to the "VΩmA" jack.
• For DC Current measurements up to 10A, connect the red lead to the "10A" jack.

5. Иштөө нускамалары

Before taking any measurement, ensure the test leads are correctly connected and the function switch is set to the desired range.

5.1 Өлчөө DC Voltage (V-):

1. Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
2. Set the function switch to the desired DC Voltagдиапазону (мисалы, 200 мВ, 2 В, 20 В, 200 В, 600 В). Эгерде көлөмtage is unknown, start with the highest range (600V) and decrease as necessary.
3. Сыноо зонддорун өлчөнө турган курамга же чынжырга туташтыруу менен, полярдуулукту сактоо.
4. Томду окуңузtage дисплейдеги e мааниси.

5.2 AC ченөө Voltage (V~):

1. Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
2. Функция которгучун каалаган AC Vol абалына коюңузtage range (e.g., 200V, 600V). Start with the highest range if the voltagе белгисиз.
3. Сыноо зонддорун өлчөй турган компонент же схема боюнча туташтырыңыз.
4. Томду окуңузtage дисплейдеги e мааниси.

5.3 Measuring DC Current (A-):

1. МААНИЛҮҮ: To measure current, the meter must be connected in series with the circuit. Disconnect power to the circuit before connecting the meter.
2. For currents up to 200mA, connect the black test lead to "COM" and the red test lead to "VΩmA". For currents up to 10A, connect the red test lead to the "10A" jack.
3. Set the function switch to the desired DC Current range (e.g., 200µA, 2mA, 20mA, 200mA, 10A).
4. Ток өлчөнө турган схеманы ачып, эсептегичти катарга туташтырыңыз.
5. Схемага кубат бериңиз жана ЖК дисплейдеги учурдагы маанини окуңуз.
6. After measurement, disconnect power, remove the meter, and restore the circuit.

5.4 Measuring Resistance (Ω):

1. Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
2. Set the function switch to the desired Resistance range (e.g., 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ).
3. Каршылыкты өлчөөдөн мурун чынжыр же тетиктин энергиясы өчүрүлгөнүн текшериңиз.
4. Сыноо зонддорун өлчөй турган компонентке туташтырыңыз.
5. ЖК дисплейдеги каршылыктын маанисин окуңуз.

5.5 Диод сыноо ():

1. Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
2. Set the function switch to the Diode test position.
3. Кызыл зондду анодго, кара зондду диоддун катодуна туташтырыңыз. Дисплей алдыга томду көрсөтөтtage drop (typically 0.5V to 0.8V for silicon diodes).
4. Зонддорду тескери буруңуз. Жакшы диод үчүн дисплейде "OL" (Open Loop) көрсөтүлүшү керек.

5.6 Үзгүлтүксүздүк тести ():

1. Connect the black test lead to the "COM" jack and the red test lead to the "VΩmA" jack.
2. Set the function switch to the Continuity test position.
3. Сынамык зонддорду чынжыр же компонент боюнча туташтырыңыз.
4. If the resistance is less than approximately 70 ±30Ω, the built-in buzzer will sound, indicating continuity. The display will also show the resistance value.

5.7 Data Hold:

Press the "HOLD" button to freeze the current reading on the LCD display. Press it again to release the hold function and resume live readings.

6. Техникалык тейлөө

6.1 Батареяны алмаштыруу:

When the low battery indicator appears on the display, replace the two LR44 batteries as described in Section 4.1. Using the meter with a low battery may result in inaccurate readings.

6.2 Fuse Replacement (10A Input):

The 10A input jack is protected by a fuse. If the meter does not read current on the 10A range, the fuse may be blown. To replace the fuse:

1. Мультиметрдин өчүк экенин текшерип, бардык сыноо өткөргүчтөрүн ажыратыңыз.
2. Батарея бөлүмүнүн капкагын 4.1-бөлүмдө сүрөттөлгөндөй ачыңыз.
3. Locate the fuse holder. Carefully remove the old fuse and replace it with a new fuse of the same type and rating (e.g., 10A/250V FUSED, as indicated on the meter).
4. Батареянын капкагын ордуна коюп, аны бурама менен бекитиңиз.

6.3 Тазалоо:

Ишти жарнама менен сүртүңүзamp cloth and mild detergent. Do not use abrasives or solvents. Periodically clean the input terminals with a cotton swab and alcohol to prevent poor contact from dirt or moisture.

7. Кыйынчылыктарды

8. Техникалык шарттар

The following table outlines the general and electrical specifications for the MASTECH MAS830L Digital Multimeter.

Figure 8.1: Detailed specifications and contents for MASTECH MAS830L.

9. Кепилдик жана колдоо

For warranty information and technical support, please refer to the documentation provided with your purchase or contact the manufacturer directly. The manufacturer of this product is MASTECH/MGL.

For further assistance, you may visit the official Mastech website or contact their customer service department. Please have your product model number (MAS830L) and purchase details ready when seeking support.