1. Увод
The Sonel MIC-5050 is a professional-grade 5kV insulation resistance tester designed for comprehensive electrical insulation diagnostics. This device is capable of measuring insulation resistance up to 20 TΩ, offering a wide range of test voltages from 50V to 5000V. It is engineered for precision and reliability in various industrial and scientific applications, including testing cables, transformers, and electric machines. This manual provides essential information for the safe and effective operation of your MIC-5050.
Слика 1: Предња страна view of the Sonel MIC-5050 Insulation Tester, showing the display, control panel, and connection ports.
2. Безбедносне информације
УПОЗОРЕЊЕ: Висока волtage equipment. Improper use can result in serious injury or death. Always adhere to safety procedures.
- Always ensure the device is properly grounded before operation.
- Не користите уређај у влажним условима или у присуству експлозивних гасова или прашине.
- Verify that the object under test is de-energized and isolated from the power source before connecting the tester.
- Use only the test leads and accessories supplied or approved by Sonel.
- After each measurement, allow sufficient time for the measured object's capacitance to discharge automatically.
- Never touch the test leads or the object under test during a measurement.
- Regularly inspect test leads for damage. Replace any damaged leads immediately.
3. Кључне карактеристике
The Sonel MIC-5050 offers a comprehensive set of features for advanced insulation testing:
- Мерење изолационог отпора: Up to 20 TΩ.
- Adjustable Test Voltage: 50V to 5000V (50-1000V in 10V steps, 1-5kV in 25V steps).
- Continuous Indication: Real-time display of measured insulation resistance or leakage current.
- Automatic Discharge: Safely discharges object capacitance after measurement.
- Timed Measurements: Adjustable measuring time up to 99 minutes, 59 seconds.
- Absorption Coefficients: Measures Polarization Index (PI), Ab1, Ab2, and Dielectric Absorption Ratio (DAR) with metered T1, T2, T3 test times (1-600s).
- Тест струја: Selectable 1.2 mA, 3 mA, and 6 mA (±15%).
- Measurement Methods: Supports two- or three-wire insulation resistance measurement.
- Live Object Protection: Built-in protection against measuring live objects.
- Мерење капацитивности: Measures capacitance during RISO testing.
- Мерење температуре: Compatible with an additional WASONT1 probe.
- Advanced Diagnostic Functions: Степ Волtage (SV) insulation resistance measurement, Dielectric Discharge (DD) calculation, and damage location (burnout).
- Дигитални филтери: Improves measurement accuracy in high noise environments.
- Струја цурења: Measurement during insulation resistance testing.
- Волtagе Мерење: ДЦ и АЦ волtage measurement in the range of 0-750V.
- Графички приказ: Ability to draw graphs on the display during measurement.
- Innovative Memory: Stores measurement points, facilities, and customer names.
Слика 2: Завршеноview of Sonel MIC-5050 features and typical application areas such as cables, transformers, and electric machines.
4. Садржај пакета
Приликом распакивања, проверите да ли су присутне све доле наведене ставке:
- Sonel MIC-5050 Insulation Tester Unit
- УСБ кабл
- L4 Carrying Case
- Sonel Reader Software
- 3M 10kV Red Test Lead
- 3M 11kV Black Test Lead
- 3M 11kV Blue Test Lead
- Crocodile Clip Black 11 kV 32A
- Crocodile Clip Red 11 kV 32A
- Crocodile Clip Blue 11 kV 32A
Figure 3: Visual representation of standard accessories included with the MIC-5050, such as test leads, crocodile clips, USB cable, and carrying case. Optional accessories are also shown.
5. Подешавање и основни рад
5.1 Почетно подешавање
- Raspakujte: Carefully remove the MIC-5050 and all accessories from the carrying case.
- Укључено: Connect the device to a power source using the provided USB cable or ensure the internal battery is charged.
- Самотестирање: The device will perform a self-test upon power-on. Wait for it to complete.
- Language/Settings: Navigate through the menu to set your preferred language and other basic settings if prompted.
5.2 Повезивање мерних каблова
For insulation resistance measurements, connect the test leads as follows:
- Connect the red test lead to the 'L' (Line) terminal of the tester.
- Connect the black test lead to the 'E' (Earth) terminal of the tester.
- For three-wire measurements, connect the blue test lead to the 'G' (Guard) terminal.
- Attach the crocodile clips securely to the test leads and then to the object under test, ensuring good contact.
5.3 Basic Insulation Resistance Measurement (RISO)
- Изаберите режим: Use the rotary switch or menu to select the 'RISO' measurement mode.
- Set Test Voltage: Adjust the desired test voltage (e.g., 500V, 1000V, 5000V) using the appropriate controls.
- Set Test Time: If a timed measurement is required, set the duration.
- Покрените мерење: Press the 'START' button. The device will apply the test voltage and display the insulation resistance.
- Посматрајте резултате: The display will show the resistance value and leakage current.
- Завршетак: Once the measurement is complete, the device will automatically discharge the object. Wait for the voltage to drop to a safe level before disconnecting.
6. Напредне функције мерења
6.1 Индекс поларизације (PI) и коефицијент диелектричне апсорпције (DAR)
These tests assess the quality of insulation by measuring resistance at different time intervals.
- Select PI/DAR mode.
- The device will automatically perform measurements at specified T1, T2, and T3 intervals (e.g., 30s, 60s, 10min).
- The PI (R10min/R1min) and DAR (R60s/R30s) values will be calculated and displayed.
6.2 Степ Волtage (SV) Test
The SV test applies increasinг волtage steps to detect insulation weaknesses that might not be apparent at a single voltage.
- Select SV test mode.
- Konfigurišite voltage steps and duration for each step.
- The device will automatically execute the test, displaying resistance at each step.
6.3 Dielectric Discharge (DD) Test
The DD test helps identify localized defects in multi-layer insulation by measuring the discharge current after a high voltagе апликација.
- Select DD test mode.
- The device will charge the insulation, then discharge it, measuring the residual current.
- The DD value will be calculated and displayed.
6.4 Leakage Current and Capacitance Measurement
The MIC-5050 can display leakage current during RISO tests and measure capacitance of the object under test.
- Leakage current is typically displayed alongside insulation resistance.
- Capacitance is measured automatically during RISO tests and displayed on the screen.
6.5 Дигитални филтери
When performing measurements in environments with high electromagnetic interference, activate the digital filter function via the menu to improve measurement stability and accuracy.
Figure 4: Graph illustrating the measurement range capabilities of various Sonel insulation testers, including the MIC-5050, alongside an image of the device in an industrial testing environment.
7. Техничке спецификације
Below are the key technical specifications for the Sonel MIC-5050:
| Параметар | Спецификација |
|---|---|
| Опсег отпора изолације | 0 ... 20 TΩ |
| Меасуринг Волtage | 50V ... 5000V (adjustable) |
| Тест Цуррент | 1.2 mA, 3 mA, 6 mA (±15%) |
| ВолtagМерење (AC/DC) | 0 ... 750 V |
| Капацитет Мерење | During RISO measurement |
| Радна температура | -20°C ... +50°C |
| Температура складиштења | -25°C ... +70°C |
| Влажност | 20% ... 90% |
| Ингресс Протецтион | IP67 (closed case) |
| Повер Суппли | Li-Ion 14.8V rechargeable battery, 90V-260V 50/60Hz from electric grid |
| Димензије | 390 к 308 к 172 мм |
| Тежина | Прибл. 5.6 кг |
| Пренос података | УСБ и Блуетоотх |
| Меморија | 990 cells (10,000 records) |
Figure 5: Detailed technical specifications for the Sonel MIC-5050, including measurement ranges, accuracy, and environmental conditions.
7.1 Charging and Discharging Characteristics
The following tables provide typical charging and discharging times for the tested object at various measurement voltages and capacitances.
| Меасуринг Волtage | Capacitance [µF] | Charging Time (Maximal) [s] | Discharging Time to 50V [s] |
|---|---|---|---|
| 5 кВ | 1 | 4.3 | 0.4 |
| 10 кВ | 1 | 4.3 | 0.4 |
| 15 кВ | 1 | 4.3 | 0.4 |
Note: These values are approximate and may vary based on specific test conditions and object characteristics.
8. Одржавање и њега
- Чишћење: Clean the device casinг са меким, дamp тканина. Немојте користити абразивна средства за чишћење или раствараче.
- батерија: Ensure the internal battery is charged regularly, especially if the device is stored for extended periods.
- Складиштење: Store the device in its carrying case in a dry, dust-free environment within the specified storage temperature range.
- калибрација: Regular calibration by authorized service centers is recommended to maintain measurement accuracy.
КСНУМКС. Решавање проблема
If you encounter issues with your MIC-5050, consider the following:
- Нема напајања: Check battery charge or external power connection. Ensure the power cable is securely connected.
- Нестабилна очитавања: Verify test lead connections. Ensure the object under test is properly isolated. Activate digital filters in noisy environments.
- Поруке о грешци: Refer to the on-screen error codes or the full user manual for specific troubleshooting steps.
- Measurement Fails: Ensure the test voltage is appropriate for the insulation being tested. Check for short circuits or open circuits in the test setup.
For persistent issues, contact Sonel technical support.
10. Гаранција и подршка
10.1 Информације о гаранцији
The Sonel MIC-5050 comes with a 24-month (two-year) warranty from the manufacturer, covering defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
10.2 Software and Virtual Instruments
The included Sonel Reader Software allows for data analysis and report generation. For additional resources and virtual instrument applications, visit the official Sonel webсајт:
Sonel Virtual Instrument Applications
For technical assistance, service, or further inquiries, please contact your authorized Sonel distributor or visit the official Sonel webсајт за контакт информације за подршку.
