Sealey MM20HV raqamli multimetri uchun qo'llanma

1. Kirish

This manual provides detailed instructions for the safe and effective use of your Sealey MM20HV Digital Multimeter. The MM20HV is a heavy-duty, general-purpose multimeter designed for various electrical measurements, featuring a clear LCD display, data hold function, temperature probe, and diode test facility. It is housed in a rugged rubber boot with an integral stand for durability and convenience.

Iltimos, qurilmani ishlatishdan oldin ushbu qo'llanmani diqqat bilan o'qib chiqing va uni kelajakda foydalanish uchun saqlab qo'ying.

2. Xavfsizlik ma'lumotlari

Always observe basic safety precautions when using electrical testing equipment to reduce the risk of fire, electric shock, and personal injury.

• Ko'rsatmalarni o'qing: Understand all operating instructions and safety warnings before use.
• Qurilmani tekshirish: Before each use, inspect the multimeter and test leads for any damage. Do not use if damaged.
• Proper Range: Always select the correct function and range for the measurement.
• jildtage Limitlar: Do not exceed the maximum input limits specified for each range.
• Live Circuits: Never measure resistance, continuity, or diode on a live circuit. Ensure power is off and circuits are discharged.
• Izolyatsiya: Keep fingers behind the probe barriers during measurements.
• Atrof-muhit: Do not use the multimeter in wet conditions or in the presence of explosive gases or fumes.
• Xizmat ko'rsatish: Refer all servicing to qualified personnel. Battery and fuse replacement are the only user-serviceable parts.

3. Qutida nima bor

Upon unpacking, ensure all items listed below are present and undamaged:

• Sealey MM20HV Digital Multimeter
• Test sinovlari (qizil va qora)
• Thermocouple (Temperature Probe)
• Foydalanuvchi uchun qo'llanma (ushbu hujjat)

1-rasm: Sealey MM20HV Digital Multimeter shown with included test leads and thermocouple.

4. Sozlash

4.1. Batareyani o'rnatish

The Sealey MM20HV requires two AAA batteries for operation.

1. Multimetrning orqa tomonidagi batareya bo'linmasi qopqog'ini toping.
2. Qopqoqni mahkamlaydigan vintni olib tashlash uchun tornavida foydalaning.
3. Bo'lim ichida ko'rsatilgandek to'g'ri qutblanishga (+ va -) rioya qilgan holda ikkita AAA batareyasini joylashtiring.
4. Batareya bo'limi qopqog'ini joyiga qo'ying va uni vint bilan mahkamlang.

4.2. Sinov simlarini ulash

To'g'ri va xavfsiz o'lchovlar uchun sinov simlarini to'g'ri ulash zarur.

• Insert the black test lead into the "COM" (Common) jack.
• Ko'pchilik uchun jildtage, resistance, and continuity measurements, insert the red test lead into the "VΩmA" jack.
• For high current (up to 10A DC) measurements, insert the red test lead into the "10A DC" jack. Ensure the function dial is set to the appropriate current range.

2-rasm: Multimeter with black lead in COM and red lead in VΩmA jack.

5. Foydalanish bo'yicha ko'rsatmalar

The Sealey MM20HV offers 8 functions for various electrical measurements.

5.1. Quvvatni yoqish/o‘chirish

Rotate the central function dial from the "OFF" position to any desired measurement function to turn the multimeter on. To turn off, rotate the dial back to "OFF".

5.2. DC Volni o'lchashtage (V =)

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the desired DC Voltage diapazoni (masalan, 200mV, 2V, 20V, 200V, 600V). Agar jildtage is unknown, start with the highest range and decrease as necessary.
3. Connect the test probes across the component or circuit to be measured.
4. jildini o'qingtagLCD displeydagi e qiymati.

5.3. AC Vol.ni o'lchashtage (V~)

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the desired AC Voltage diapazoni (masalan, 200V, 600V).
3. Sinov zondlarini AC vol bo'ylab ulangtage manba.
4. jildini o'qingtagLCD displeydagi e qiymati.

5.4. Measuring DC Current (A=)

Ogohlantirish: Hech qachon multimetrni voltmetrga parallel ravishda ulamangtage source when measuring current. Always connect in series with the load.

1. Insert the black lead into the "COM" jack.
2. For currents up to 200mA, insert the red lead into the "VΩmA" jack. For currents up to 10A, insert the red lead into the "10A DC" jack.
3. Set the function dial to the appropriate DC Current range (e.g., 2mA, 20mA, 200mA, 10A).
4. Open the circuit where current is to be measured and connect the multimeter in series.
5. LCD displeyda joriy qiymatni o'qing.

5.5. Qarshilikni o'lchash (Ω)

Ogohlantirish: Qarshilikni o'lchashdan oldin kontaktlarning zanglashiga olib, barcha kondensatorlar zaryadsizlanganligiga ishonch hosil qiling.

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the desired Resistance range (e.g., 200Ω, 2kΩ, 20kΩ, 200kΩ, 2MΩ).
3. Connect the test probes across the component whose resistance is to be measured.
4. LCD displeydagi qarshilik qiymatini o'qing.

5.6. Ovozli davomiylik testi

This function allows for quick checks of circuit continuity with an audible tone.

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the continuity symbol (often shared with diode test).
3. Sinov problarini sxema yoki komponent bo'ylab ulang.
4. Ovozli signal uzluksizlikni (past qarshilik) bildiradi. Displeyda qarshilik qiymati ko'rsatiladi.

5.7. Diode/Transistor Verification

This function allows for testing diodes and transistors.

1. Insert the black lead into the "COM" jack and the red lead into the "VΩmA" jack.
2. Set the function dial to the diode symbol.
3. For diode testing, connect the red probe to the anode and the black probe to the cathode. The display will show the forward voltage tushiring. Zondlarni teskari yo'naltiring; yaxshi diod uchun displeyda "OL" (Ochiq tsikl) ko'rsatilishi kerak.
4. For transistor (hFE) testing, insert the transistor leads into the appropriate NPN or PNP sockets on the multimeter. The display will show the hFE value.

5.8. Measuring Temperature (°C)

The multimeter includes a thermocouple for temperature measurements.

1. Remove the test leads from the input jacks.
2. Insert the thermocouple plug into the "VΩmA" and "COM" jacks, observing polarity if indicated.
3. Set the function dial to the "°C" range.
4. Place the tip of the thermocouple on or near the object whose temperature is to be measured.
5. Read the temperature value in Celsius on the LCD display.

5.9. Ma'lumotlarni saqlash funksiyasi

Press the "HOLD" button (typically a green button on the front panel) to freeze the current reading on the display. Press it again to release the hold and resume live readings.

6. Xizmat ko'rsatish

6.1. Tozalash

Kosonni reklama bilan o'chiringamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the device is off and disconnected from any circuits before cleaning.

6.2. Batareyani almashtirish

When the battery indicator appears on the display, replace the batteries as described in Section 4.1. Always use fresh AAA batteries.

6.3. Sigortani almashtirish

If the current measurement function stops working, the fuse may need replacement.

1. Ensure the multimeter is turned off and all test leads are disconnected.
2. Remove the battery compartment cover and batteries.
3. Locate the fuse(s) inside the compartment. The MM20HV typically uses a 200mA/250V fast-blow fuse for the mA range and a 10A/250V fast-blow fuse for the 10A range.
4. Eski sug'urta ehtiyotkorlik bilan olib tashlang va uni aynan bir xil turdagi va reytingdagi yangi sug'urta bilan almashtiring.
5. Replace the batteries and battery compartment cover.

Muhim: Never use a fuse with a different rating or bypass a fuse. This can damage the multimeter and pose a serious safety hazard.

7. Muammolarni bartaraf qilish; nosozliklarni TUZATISH

8. Texnik shartlar

The following table outlines the technical specifications for the Sealey MM20HV Digital Multimeter.

Izoh: Texnik xususiyatlar ogohlantirmasdan o'zgartirilishi mumkin.

9. Kafolat va qo'llab-quvvatlash

For information regarding warranty coverage, technical support, or service, please refer to the warranty card included with your product or contact Sealey customer service directly. Contact details are typically available on the manufacturer's official websayt.