سيلي MM20HV ڊجيٽل ملٽي ميٽر هدايت نامو

1. تعارف

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.

مھرباني ڪري ڊوائيس هلائڻ کان اڳ ھن دستوري کي چڱي طرح پڙھو ۽ مستقبل جي حوالي لاءِ ان کي برقرار رکو.

2. حفاظت جي ڄاڻ

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

• پڙهو هدايتون: Understand all operating instructions and safety warnings before use.
• ڊوائيس جو معائنو ڪريو: 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.
• جلدtage حدون: 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.
• موصليت: Keep fingers behind the probe barriers during measurements.
• ماحول: Do not use the multimeter in wet conditions or in the presence of explosive gases or fumes.
• خدمت ڪرڻ: Refer all servicing to qualified personnel. Battery and fuse replacement are the only user-serviceable parts.

3. دٻي ۾ ڇا آهي

پيڪنگ کولڻ وقت، پڪ ڪريو ته هيٺ ڏنل سڀئي شيون موجود آهن ۽ انهن کي نقصان نه پهتو آهي:

• Sealey MM20HV Digital Multimeter
• ٽيسٽ ليڊز (ڳاڙهو ۽ ڪارو)
• Thermocouple (Temperature Probe)
• استعمال ڪندڙ جو دستياب (ھي دستاويز)

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

4. سيٽ اپ

4.1. بيٽري لڳائڻ

The Sealey MM20HV requires two AAA batteries for operation.

1. ملٽي ميٽر جي پوئين پاسي بيٽري جي ڪمپارٽمينٽ ڪَوَر کي ڳوليو.
2. ڍڪ کي محفوظ ڪندڙ اسڪرو کي هٽائڻ لاءِ اسڪرو ڊرايور استعمال ڪريو.
3. ٻہ AAA بيٽريون داخل ڪريو، صحيح قطبيت (+ ۽ -) کي ڏسندي جيئن ڪمري اندر ڏيکاريل آهي.
4. بيٽري جي ڪمري واري ڍڪ کي تبديل ڪريو ۽ ان کي اسڪرو سان محفوظ ڪريو.

4.2. ٽيسٽ ليڊز کي ڳنڍڻ

Proper connection of test leads is essential for accurate and safe measurements.

• Insert the black test lead into the "COM" (Common) jack.
• گھڻي جلد لاءِtage, 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.

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

5. آپريٽنگ هدايتون

The Sealey MM20HV offers 8 functions for various electrical measurements.

5.1. پاور آن/آف

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. ڊي سي وول جي ماپtage (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 range (e.g., 200mV, 2V, 20V, 200V, 600V). If the voltage 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. جلد پڙهوtagاي قدر LCD ڊسپلي تي.

5.3. ماپڻ AC Voltage (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 range (e.g., 200V, 600V).
3. Connect the test probes across the AC voltage ذريعو.
4. جلد پڙهوtagاي قدر LCD ڊسپلي تي.

5.4. Measuring DC Current (A=)

احتياط: Never connect the multimeter in parallel with a voltage 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 ڊسپلي تي موجوده قدر پڙهو.

5.5. Measuring Resistance (Ω)

خبردار: مزاحمت کي ماپڻ کان اڳ پڪ ڪريو ته سرڪٽ ڊي-انرجائيز ٿيل آهي ۽ سڀئي ڪيپيسٽرز خارج ٿيل آهن.

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 ڊسپلي تي مزاحمت جي قيمت پڙهو.

5.6. ٻڌڻ جي قابل تسلسل ٽيسٽ

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. Connect the test probes across the circuit or component.
4. هڪ ٻڌڻ وارو آواز تسلسل (گهٽ مزاحمت) کي ظاهر ڪري ٿو. ڊسپلي مزاحمت جي قيمت ڏيکاريندو.

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 voltagاي ڊراپ. پروبس کي الٽ ڪريو؛ ڊسپلي کي سٺي ڊاءِڊ لاءِ "OL" (اوپن لوپ) ڏيکارڻ گهرجي.
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. ڊيٽا هولڊ فنڪشن

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. سار سنڀال

6.1. صفائي

اشتهار سان ڪيس صاف ڪريوamp cloth and mild detergent. Do not use abrasives or solvents. Ensure the device is off and disconnected from any circuits before cleaning.

6.2. بيٽري مٽائڻ

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

6.3. فيوز مٽائڻ

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. Carefully remove the old fuse and replace it with a new fuse of the exact same type and rating.
5. Replace the batteries and battery compartment cover.

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

7. مسئلا حل ڪرڻ

8. وضاحتون

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

نوٽ: وضاحت بغير اطلاع جي تبديلي سان ٿي سگھي ٿي.

9. وارنٽي ۽ سپورٽ

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 webسائيٽ.