Extech EX820A 1000A True RMS AC Clamp میټر د IR ترمامیتر سره

1. پیژندنه

The Extech EX820A is a professional 1000A True RMS AC Clamp Meter equipped with a built-in non-contact infrared thermometer. This device is designed for accurate electrical measurements and temperature monitoring in various applications, including electrical installations, motors, and other electrical devices. It features a large 6000 count backlit LCD display for clear readings and an ergonomically designed double-molded housing for comfortable, one-handed operation. The 43 mm (1.7 inch) jaw opening accommodates conductors up to 750 MCM or two 500 MCM cables. This meter is rated CAT IV-600 V for enhanced safety.

د خوندیتوب معلومات: Always adhere to local and national safety codes. Use appropriate personal protective equipment. Do not attempt to measure voltages or currents exceeding the meter's specified limits. Ensure the meter is in good working condition before use. Refer to the safety section in the full manual for detailed precautions.

Figure 1: Extech EX820A Clamp مترview

2. د محصول ب Featuresې

• د RMS ریښتیني اندازه کول: د غیر سینوسایډل څپو لپاره دقیق لوستل چمتو کوي.
• د 1000A AC اوسني اندازه کول: High current capacity for demanding applications.
• Built-in IR Thermometer: Non-contact temperature measurement with laser pointer for identifying hot spots.
• LoZ (Low Impedance) Mode: Prevents false readings caused by ghost voltages.
• د ټیټ پاس فلټر (LPF): Ensures accurate measurements in electrically noisy environments.
• د داخلي جریان اندازه کول: Captures motor start-up current.
• CAT IV-600V Safety Rating: High safety standard for industrial environments.
• 6000 Count Backlit LCD Display: Large, easy-to-read display with illumination for dim lighting conditions.
• د ژامې خلاصول: 43 mm (1.7 inches) for large conductors.
• د ملټي میټر دندې: د AC/DC حجم شامل دیtage, Resistance, Capacitance, Frequency, Diode, and Continuity.

Figure 2: Display with LoZ and LPF Indicators

3. ترتیب کول

3.1 پیک کول او تفتیش کول

Carefully unpack the meter and its accessories. Verify that all items listed in the 'Included Components' section are present and undamaged. If any item is missing or damaged, contact your supplier immediately.

3.2 د بیټرۍ نصب کول

The EX820A requires one (1) 9V battery (included). To install or replace the battery:

1. ډاډ ترلاسه کړئ چې میټر بند دی.
2. د میټر په شا کې د بیټرۍ د برخې پوښ ومومئ.
3. د بیټرۍ پوښ خوندي کولو لپاره د سکرو ډرایور څخه کار واخلئ.
4. Remove the cover and insert the 9V battery, observing correct polarity.
5. د بیټرۍ پوښ بدل کړئ او پیچ پیچ کړئ.

۶.۲ د ټیسټ لیډونو نښلول

د voltage, resistance, capacitance, frequency, diode, and continuity measurements, connect the supplied test leads:

• Insert the red test lead into the VΩHz+ input jack.
• د تور ټیسټ لیډ د COM ان پټ جیک کې دننه کړئ.

شکل ۱۱: شاملې برخې

4. عملیاتي لارښوونې

The EX820A features a rotary function switch to select the desired measurement mode. Press the 'MODE' button to cycle through functions within a single switch position (e.g., AC/DC voltage، مقاومت/دوام).

۵.۱ د AC جریان اندازه کول (Clamp)

1. Set the rotary switch to the 'A~' position.
2. cl خلاص کړئamp jaws by pressing the jaw release trigger.
3. یو واحد کنډکټر د cl سره وتړئamp ژامې. ډاډ ترلاسه کړئ چې ژامې په بشپړه توګه تړل شوي دي.
4. په ښودنه کې د AC اوسني ارزښت ولولئ.

Figure 4: Measuring AC Current with the Clamp

4.2 اندازه کول د AC/DC حجمtage

1. د ازموینې لیډونه وصل کړئ لکه څنګه چې په 3.3 برخه کې تشریح شوي.
2. د څرخي سویچ 'V' موقعیت ته تنظیم کړئ.
3. Press the 'MODE' button to select AC (V~) or DC (V–) voltage.
4. Apply the test probes to the circuit points where voltage باید اندازه شي.
5. ټوک ولولئtage ارزښت په نندارتون کې.

شکل ۵: د حجم اندازه کولtage with Test Leads

4.3 Using the Infrared Thermometer

1. Set the rotary switch to the 'IR TEMP' position.
2. Point the meter's IR sensor (located at the top) towards the target surface. The laser pointer will assist in aiming.
3. Read the surface temperature on the display.

Figure 6: Using the Infrared Thermometer

4.4 LoZ (Low Impedance) Mode

The LoZ function is used to eliminate ghost voltages, which can cause misleading readings. When measuring voltagپه سرکټونو کې چیرې چې د ګوسټ حجمtages are suspected, select the LoZ mode to provide a low impedance path that dissipates these stray voltages.

1. Set the rotary switch to the 'V LoZ' position.
2. ټیسټ سرکټ سره وصل کړئ.
3. ټوک ولولئtage. This reading will be more accurate in the presence of ghost voltages.

۴ د ټیټ پاس فلټر (LPF)

The LPF function is designed for accurate measurements on variable frequency drives (VFDs) and other electrically noisy equipment. It filters out high-frequency noise that can distort True RMS readings.

1. Set the rotary switch to the 'A~' or 'V~' position.
2. Press the 'LPF' button to activate the Low Pass Filter. The LPF icon will appear on the display.
3. Proceed with your current or voltage اندازه کول.

۶.۱.۲ د ننوتلو اوسني اندازه کول

The Inrush function captures the maximum current surge when a motor or other inductive load starts up. This is useful for diagnosing motor starting issues.

1. Set the rotary switch to the 'A~' position.
2. Press the 'INRUSH' button. The meter will be ready to capture the inrush current.
3. cl تطبیق کړئamp to the motor's power lead and start the motor. The meter will display the peak inrush current.

5. ساتنه

5.1 پاکول

Wipe the meter with a dry, soft cloth. Do not use abrasives or solvents. Periodically clean the input jacks with a cotton swab and alcohol to ensure good contact.

5.2 د بیټرۍ بدلول

Replace the 9V battery when the low battery indicator appears on the display. Refer to Section 3.2 for battery installation instructions. Always dispose of used batteries responsibly.

5.3 ذخیره کول

When the meter is not in use for an extended period, remove the battery to prevent leakage. Store the meter in a cool, dry place, away from direct sunlight and extreme temperatures.

6. ستونزه حل کول

• میټر نه چالانیږي: د بیټرۍ نصب کول وګورئ او ډاډ ترلاسه کړئ چې بیټرۍ کافي چارج لري. که اړتیا وي نو بدل یې کړئ.
• هیڅ لوستل یا 'OL' (اوورلوډ) نه ښودل کیږي: Ensure test leads are properly connected and making good contact. Verify the measurement range is appropriate for the input. For current measurements, ensure only a single conductor is within the clamp ژامې
• ناسم لوستل: د بیټرۍ حجم چیک کړئtage. Ensure the correct function is selected. For voltage/current, consider using LoZ or LPF modes in noisy environments. Ensure proper contact with test points.
• IR Thermometer not working: Ensure the rotary switch is in the 'IR TEMP' position. Check for any obstructions to the IR sensor.

7. مشخصات

8. تضمین او ملاتړ

8.1 د تضمین معلومات

The Extech EX820A Clamp میټر د یو سره راځي 2 کلن تضمین د پیرود نیټې څخه. دا تضمین د عادي استعمال لاندې موادو او کاریګرۍ کې نیمګړتیاوې پوښي. دا د ناوړه ګټې اخیستنې، غیر مجاز تعدیل، حادثې، یا غفلت له امله رامینځته شوي زیانونه نه پوښي. مهرباني وکړئ د تضمین ادعاوو لپاره د پیرود ثبوت وساتئ.

8.2 تخنیکي ملاتړ

For technical assistance, troubleshooting, or service inquiries, please refer to the official Extech website or contact Extech customer support. Contact information can typically be found in the full printed manual or on the manufacturer's webسایټ