پیژندنه
The Mastech MS8321D is a compact, manual-ranging digital multimeter designed for measuring AC/DC voltage, AC/DC current, resistance, temperature, diode, and continuity. It is suitable for a wide range of electrical testing applications in domestic, electronics, and industrial settings. This manual provides essential information for the safe and effective operation and maintenance of your device.
د خوندیتوب معلومات
To ensure safe operation and service of the meter, please read this instruction manual thoroughly before use. Failure to observe safety warnings can result in electric shock, fire, or damage to the meter.
- د اندازه کولو لپاره تل سم فعالیت او حد وکاروئ.
- د هرې لړۍ لپاره ټاکل شوي اعظمي ان پټ ارزښتونو څخه ډیر مه کوئ.
- د هر استعمال څخه مخکې د زیان لپاره د ازموینې لیډونه معاینه کړئ. که چیرې موصلیت زیانمن شوی وي نو مه یې کاروئ.
- Ensure the meter is switched off and disconnected from the circuit before opening the battery compartment.
- په لوند چاپیریال یا د بریښنایی طوفانونو په جریان کې د میټر کارولو څخه ډډه وکړئ.
- Always replace batteries when the low battery indicator appears to ensure accurate readings.
- د حجم اندازه کولو هڅه مه کوئtage or current on circuits exceeding the meter's rated capacity.
د محصول ځانګړتیاوې
The Mastech MS8321D Digital Multimeter includes the following key features:
- ښودنه: 2000 شمېرې
- Manual Range selection
- د اتومات بریښنا بند فعالیت
- د ډیټا هولډ فعالیت
- ډایډ خلاص والیومtage: 3.0V
- Continuity Buzzer: Activates at <40Ω
- د ټیټ بیټرۍ ښودنې شاخص
- Transistor hFE measurement: 0~1000
د بسته محتويات
Upon opening the package, verify that all items listed below are present and undamaged. If any items are missing or damaged, contact your supplier.

Image showing the Mastech MS8321D Digital Multimeter, its main applications (domestic and electronics), and the included package contents.
- Mastech MS8321D Digital Multimeter
- ټیسټ لیډز
- 1x 9V 6F22 Battery
- د حساب ورکولو سند
- د چټک پیل لارښود
چمتو کول
د بیټرۍ نصب کول
The Mastech MS8321D requires 2 LR44 batteries for operation, which are included. To install or replace the batteries:
- Ensure the multimeter is powered off and disconnect all test leads from the input terminals.
- د میټر په شا کې د بیټرۍ د برخې پوښ ومومئ.
- د پوښ د خوندي کولو لپاره د سکرو ډرایور څخه کار واخلئ.
- په احتیاط سره پوښ لرې کړئ.
- Insert the 2 LR44 batteries, observing the correct polarity (+ and - markings).
- د بیټرۍ د برخې پوښ بدل کړئ او د سکرو سره یې خوندي کړئ.
عملیاتي لارښوونې
اوورview د کنټرولونو

مخکی view of the Mastech MS8321D Digital Multimeter, showing the LCD display, rotary switch, function buttons, and input jacks.
The multimeter features a large LCD display for reading measurements, a central rotary switch for selecting measurement functions and ranges, and input jacks for connecting test leads.
اندازه کول
Follow these general steps for making measurements:
- د ازموینې لیډونه وصل کړئ: Insert the black test lead into the 'COM' (common) jack. Insert the red test lead into the appropriate input jack for your measurement type (e.g., 'VΩmA' for voltage, resistance, or small current; '20A' for high current measurements).
- دنده وټاکئ: Turn the rotary switch to the desired measurement function (e.g., V~ for AC Voltage، V- د DC Vol لپارهtage, Ω for Resistance, A~ for AC Current, A- for DC Current, Diode, Continuity, hFE).
- Select Range (Manual Ranging): If the meter is manual ranging, select an appropriate range that is higher than the expected measurement value. If the value is unknown, start with the highest range and work downwards until a stable reading is obtained.
- سرکټ سره وصل شئ: Connect the test leads to the circuit or component you wish to measure. Ensure proper parallel connection for voltage measurements and series connection for current measurements.
- ښودنه ولولئ: Observe the measurement value on the LCD display.
- د معلوماتو ساتل: د 'نیول' تڼۍ کېکاږئ ترڅو په ښودنه کې اوسنی لوستل کنګل کړئ. د خوشې کولو لپاره بیا فشار ورکړئ.
- بندول: After use, turn the rotary switch to the 'OFF' position to conserve battery life. The meter also features an Auto Power Off function.
ساتنه
پاکول
د میټر پاکولو لپاره، کیس د اعلان سره پاک کړئamp ټوکر او یو معتدل صابون. د کثافاتو یا محلولونو څخه کار مه اخلئ. ډاډ ترلاسه کړئ چې میټر د کارولو دمخه په بشپړه توګه وچ دی.
د بیټرۍ بدلول
When the 'Low Battery' indicator appears on the display, the batteries should be replaced promptly to ensure accurate measurements. Refer to the 'Battery Installation' section under Setup for detailed instructions.
د ستونزو حل کول
If you encounter issues with your Mastech MS8321D, refer to the following common troubleshooting tips:
- نه ښودنه یا کمزوری ښودنه: د بیټرۍ نصب کول وګورئ او ډاډ ترلاسه کړئ چې بیټرۍ خالي شوي نه دي. که اړتیا وي نو بیټرۍ بدل کړئ.
- ناسم لوستل: Verify that the correct function and range are selected for the measurement. Ensure test leads are properly connected to the meter and the circuit. Check for damaged test leads.
- د دوامدارۍ بزر کار نه کوي: Ensure the continuity function is selected and the circuit resistance is below 40Ω.
- Meter Does Not Power On: Check battery condition and installation. Ensure the rotary switch is not stuck between positions.
مشخصات
Detailed electrical specifications for the Mastech MS8321D are provided below:

Table detailing the range, resolution, and accuracy for various measurement functions of the MS8321D.
| د اندازه کولو ډول | رینج | قرارداد | دقت |
|---|---|---|---|
| DC Voltage | 200mV/2V/20V/200V 1000V | 0.1mV/1mV/10mV/0.1V 1V | ±(0.7%+1) ±(0.8%+2) |
| AC Voltage | 2V/20V/200V 750V | 1mV/10mV/0.1V 1V | ±(0.8%+3) ±(1.2%+3) |
| DC اوسنی | 200µA/2mA/20mA 200mA 20A | 0.1µA/1µA/10µA 0.1mA 0.01A | ±(1.0%+3) ±(1.5%+1) ±(2.0%+5) |
| AC اوسنی | 2mA/20mA 200mA 20A | 1µA/10µA 0.1mA 0.01A | ±(1.2%+5) ±(1.8%+5) ±(3.0%+10) |
| مقاومت | 200Ω 2kΩ/20kΩ/200kΩ/2MΩ 20MΩ | 0.1Ω 1Ω/10Ω/0.1kΩ/1kΩ 10kΩ | ±(1.0%+3) ±(1.0%+1) ±(1.0%+5) |
عمومي مشخصات
- د محصول ابعاد: 16 x 9 x 5 سانتي متره
- د توکي وزن: 0.5 کیلوګرامه
- Power Source: Battery Powered (2 LR44 batteries included)
- من عملیاتي حجمtage: 3 ولټه
- د تودوخې لوړه درجه: ۵۰ درجې سانتي ګراد
- Specification Met: CE, RoHS
- جوړونکی: MASTECH/MGL
- د اصلي هیواد: تایوان
تضمین او ملاتړ
For detailed warranty information, technical support, or service inquiries regarding your Mastech MS8321D Digital Multimeter, please refer to the documentation included with your product or visit the official Mastech website. Contact information for customer support is typically provided in the Quick Start Guide or on the manufacturer's webسایټ





