MASTECH MS8050 High-Precision Bench Digital Multimeter User Manual

1. Вступ

The MASTECH MS8050 is a high-accuracy, high-stability digital multimeter designed for precise measurements in various applications. It features a 24-bit A/D converter and a direct digit display up to 53000 counts. This instrument supports DC, AC RMS, and mixed signal DC+AC RMS voltage measurements up to 1000V, and current measurements up to 10A. With a 1 microvolt DC and 20KHz AC frequency resolution, it meets diverse measurement requirements. It also functions as a frequency meter, capable of measuring pulses over 2MHz and linear frequencies up to 200KHz, including current frequency. The MS8050 offers measurements for large resistors up to 50MΩ, capacitors up to 5000µF, and includes functions for maximum, minimum, relative, average values, decibel measurements, diode tests, and continuity checks. Its color fluorescent digital display and 30-full storage function enhance usability. The device includes an RS-232C interface with PC software for data display, recording, and dynamic mapping, transforming it into a versatile measuring recorder. Misoperation protection ensures safety.

This image displays the MASTECH MS8050 Bench Digital Multimeter from a slightly elevated front-right angle, showcasing its green casing, large digital display, function buttons, and input terminals.

2. Ключові характеристики

• 53000 counts measurement. Auto/Manual range. ACV and ACV measurements reach up to 1000V. DC measurement accuracy reaches up to 0.03%.
• 0.1Ω resistance and 1µV voltage resolution. Voltage/Current linear frequency measurement. Logic frequency/duty cycle measurement.
• Capacitance measurement from 0.01nF to 5000µF. AC/AC + DC true RMS/dBm measurement. MAX/MIN/MAX-MIN value, relative value, average value measurement.
• Data hold function. RS-232C interface and PC Windows software for data logging and analysis. Software calibrates automatically. Full overload protection.
• Color fluorescent double display. Full screen memory function. Insulating performance reaching 1000V CATII.

3. Налаштування

Before operating the MASTECH MS8050, ensure proper setup to guarantee accurate measurements and user safety.

3.1 Розпакування та перевірка

• Carefully remove the multimeter from its packaging.
• Inspect the device for any signs of physical damage. If damage is found, do not use the device and contact customer support.
• Verify that all accessories, including test leads, power cord, and RS-232C cable, are present.

3.2 Підключення живлення

1. Переконайтеся, що вимикач живлення мультиметра знаходиться в положенні ВИМКНЕНО.
2. Connect the provided power cord to the power input socket on the rear of the multimeter.
3. Підключіть інший кінець шнура живлення до відповідної розетки змінного струму.

3.3 Підключення вимірювальних щупів

1. Для більшості об'ємівtage, resistance, and continuity measurements, insert the red test lead into the ВОм вхідний роз’єм і чорний тестовий провід у вхід COM (загальний) вхідний термінал.
2. For current measurements, insert the red test lead into the mA or 10А input terminal, depending on the expected current range, and the black test lead into the COM термінал.
3. Always ensure test leads are securely connected before taking measurements.

Прямий фронт view of the MASTECH MS8050 Bench Digital Multimeter, highlighting the display, control panel, and input jacks. The integrated stand is visible at the bottom.

4. Інструкція з експлуатації

This section details the operation of the MASTECH MS8050 for various measurement functions.

4.1 Увімкнення/вимкнення

• To power on the device, press the green power button located on the front panel.
• Щоб вимкнути, знову натисніть кнопку живлення.

4.2 Вибір функції

Use the function buttons on the front panel to select the desired measurement mode:

• V™: DC Voltagе вимірювання.
• V∼: AC Voltagе вимірювання.
• A™: DC Current measurement.
• A∼: AC Current measurement.
• ОмВимірювання опору.
• CAP: Capacitance measurement.
• Hz: Frequency measurement.
• ДІОДПеревірка діодів.
• ПРОДОВЖЕННЯПеревірка на безперервність.

4.3 Вибір діапазону

The MS8050 supports both auto-ranging and manual ranging. Press the RANGE button to switch between auto and manual modes. In manual mode, repeatedly press RANGE to cycle through available ranges for the selected function.

4.4 Спеціальні функції

• МАКС/МІН: Press this button to record and display the maximum and minimum values measured during a session.
• REL (Relative): Press to set the current reading as a reference value, and subsequent measurements will be displayed as a deviation from this reference.
• AVG (Average): Calculates and displays the average of measurements over time.
• ТРИМАТИ: Freezes the current display reading. Press again to release.
• дБм: Measures decibels relative to 1 milliwatt.
• Справжня RMS: The multimeter automatically performs True RMS measurements for AC voltage and current, providing accurate readings for non-sinusoidal waveforms.

4.5 PC Software and RS-232C Interface

The MS8050 includes an RS-232C interface for connection to a personal computer. Use the provided RS-232C cable and Windows software to:

• Display real-time measurement data on the computer screen.
• Record and log measurement data over time.
• Generate graphs and charts of measurement trends.
• Perform automatic calibration of the instrument via software.

Refer to the software's dedicated manual for detailed installation and operation instructions.

5. Технічне обслуговування

Proper maintenance ensures the longevity and accuracy of your MASTECH MS8050 multimeter.

5.1 Очищення

• Always disconnect the power cord and test leads before cleaning.
• Wipe the exterior of the multimeter with a soft, damp тканина. Не використовуйте абразивні засоби чи розчинники.
• Ensure no moisture enters the device through the input terminals or ventilation openings.

5.2 Калібрування

The MS8050 features software-based automatic calibration. Regular calibration, as recommended by MASTECH, helps maintain the instrument's high accuracy. Refer to the PC software manual for calibration procedures.

5.3 Зберігання

• Зберігайте мультиметр у прохолодному, сухому місці, подалі від прямих сонячних променів та екстремальних температур.
• Тримайте пристрій вільним від пилу та вологи.
• If storing for extended periods, ensure the device is powered off and disconnected from all power sources.

6. Вирішення проблем

This section provides solutions to common issues you might encounter with the MS8050 multimeter.

6.1 No Display or Power

• Check if the power cord is securely connected to both the multimeter and the AC outlet.
• Verify that the AC outlet is functional by plugging in another device.
• Ensure the power switch on the multimeter is in the ON position.

6.2 Incorrect or Unstable Readings

• Ensure test leads are correctly inserted into the appropriate input terminals for the selected function.
• Check for loose or damaged test leads. Replace if necessary.
• Verify that the correct measurement function and range are selected for the circuit being tested.
• Ensure good contact between the test probes and the circuit points.
• Environmental factors like strong electromagnetic interference can affect readings. Move the multimeter away from such sources.

6.3 PC Software Connection Issues

• Ensure the RS-232C cable is securely connected to both the multimeter and the computer.
• Verify that the correct COM port is selected in the PC software settings.
• Check if the necessary drivers for the RS-232C interface are installed on your computer.
• Restart both the multimeter and the computer, then try connecting again.

7. Технічні характеристики

Detailed technical specifications for the MASTECH MS8050 Bench Digital Multimeter:

8. Інформація про безпеку

Always observe the following safety precautions when operating the MASTECH MS8050 multimeter to prevent personal injury or damage to the instrument:

• Не перевищуйте максимальні обмеження вхідного сигналу для будь-якої функції.
• Ніколи не застосовуйте обtage to the current input terminals (mA, 10A) when the function switch is set to a current range.
• Ensure the multimeter is in good working condition and that test leads are not damaged before use.
• Do not operate the multimeter in wet environments or with wet hands.
• Будьте обережні під час роботи з томtagвище 30 В змінного струму (RMS), 42 В пікового значення або 60 В постійного струму, оскільки це створює небезпеку ураження електричним струмом.
• Always disconnect power to the circuit under test before connecting or disconnecting test leads for current measurements.
• Use the correct terminals, function, and range for your measurements.
• Refer to the CAT rating of the instrument (1000V CATII) and ensure it is suitable for your application.

9. Обмежена гарантія

MASTECH products are manufactured to high-quality standards. This product is covered by a limited warranty against defects in materials and workmanship. The specific terms and duration of the warranty may vary by region and retailer. Please retain your proof of purchase for warranty claims. For detailed warranty information, refer to the documentation included with your purchase or contact MASTECH customer support.

10. Підтримка клієнтів

For technical assistance, troubleshooting, or inquiries regarding your MASTECH MS8050 multimeter, please contact MASTECH customer support. Contact information can typically be found on the MASTECH official website or in the product packaging. When contacting support, please have your product model number (MS8050) and purchase details ready.