1. Introducere
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.
Figura 1: Față view of the Sonel MIC-5050 Insulation Tester, showing the display, control panel, and connection ports.
2. Informații de siguranță
AVERTISMENT: Vol. maretage equipment. Improper use can result in serious injury or death. Always adhere to safety procedures.
- Always ensure the device is properly grounded before operation.
- Do not operate the device in wet conditions or in the presence of explosive gases or dust.
- 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. Caracteristici cheie
The Sonel MIC-5050 offers a comprehensive set of features for advanced insulation testing:
- Măsurarea rezistenței de izolație: 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.
- Descărcare automată: 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).
- Curent de testare: Selectable 1.2 mA, 3 mA, and 6 mA (±15%).
- Metode de măsurare: Supports two- or three-wire insulation resistance measurement.
- Live Object Protection: Built-in protection against measuring live objects.
- Măsurarea capacității: Measures capacitance during RISO testing.
- Măsurarea temperaturii: Compatible with an additional WASONT1 probe.
- Advanced Diagnostic Functions: Pasul Voltage (SV) insulation resistance measurement, Dielectric Discharge (DD) calculation, and damage location (burnout).
- Filtre digitale: Improves measurement accuracy in high noise environments.
- Curent de scurgere: Measurement during insulation resistance testing.
- Voltage Măsurare: DC și AC voltage measurement in the range of 0-750V.
- Graphical Display: Ability to draw graphs on the display during measurement.
- Innovative Memory: Stores measurement points, facilities, and customer names.
Figura 2: Pesteview of Sonel MIC-5050 features and typical application areas such as cables, transformers, and electric machines.
4. Conținutul pachetului
La despachetare, verificați dacă sunt prezente toate articolele enumerate mai jos:
- Sonel MIC-5050 Insulation Tester Unit
- Cablu USB
- 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. Configurare și operare de bază
5.1 Configurare inițială
- Despacheta: Carefully remove the MIC-5050 and all accessories from the carrying case.
- Pornire: Connect the device to a power source using the provided USB cable or ensure the internal battery is charged.
- Autotestare: 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 Conectarea cablurilor de testare
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)
- Selectați modul: 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.
- Inițiați măsurarea: Press the 'START' button. The device will apply the test voltage and display the insulation resistance.
- Observați rezultatele: The display will show the resistance value and leakage current.
- Finalizare: 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. Advanced Measurement Functions
6.1 Indicele de polarizare (PI) și raportul de absorbție dielectrică (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 Pasul Voltage (SV) Test
The SV test applies increasing voltage steps to detect insulation weaknesses that might not be apparent at a single voltage.
- Select SV test mode.
- Configurați 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 voltage aplicație.
- 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 Filtre digitale
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. Specificatii tehnice
Below are the key technical specifications for the Sonel MIC-5050:
| Parametru | Caietul de sarcini |
|---|---|
| Gama de rezistență la izolație | 0 ... 20 TΩ |
| Măsurarea Voltage | 50V ... 5000V (adjustable) |
| Curent de testare | 1.2 mA, 3 mA, 6 mA (±15%) |
| VoltagMăsurare (AC/DC) | 0 ... 750 V |
| Măsurarea capacității | During RISO measurement |
| Temperatura de operare | -20°C ... +50°C |
| Temperatura de depozitare | -25°C ... +70°C |
| Umiditate | 20% ... 90% |
| Protecție la intrare | IP67 (closed case) |
| Alimentare electrică | Li-Ion 14.8V rechargeable battery, 90V-260V 50/60Hz from electric grid |
| Dimensiuni | 390 x 308 x 172 mm |
| Greutate | Aproximativ. 5.6 kg |
| Transmiterea datelor | USB și Bluetooth |
| Memorie | 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.
| Măsurarea Voltage | Capacitance [µF] | Charging Time (Maximal) [s] | Discharging Time to 50V [s] |
|---|---|---|---|
| 5 kV | 1 | 4.3 | 0.4 |
| 10 kV | 1 | 4.3 | 0.4 |
| 15 kV | 1 | 4.3 | 0.4 |
Note: These values are approximate and may vary based on specific test conditions and object characteristics.
8. Întreținere și îngrijire
- curatenie: Curățați dispozitivul casing cu un d moaleamp pânză. Nu utilizați agenți de curățare abrazivi sau solvenți.
- Baterie: Ensure the internal battery is charged regularly, especially if the device is stored for extended periods.
- Depozitare: Store the device in its carrying case in a dry, dust-free environment within the specified storage temperature range.
- Calibrare: Regular calibration by authorized service centers is recommended to maintain measurement accuracy.
9. Depanare
If you encounter issues with your MIC-5050, consider the following:
- Fără putere: Check battery charge or external power connection. Ensure the power cable is securely connected.
- Citiri instabile: Verify test lead connections. Ensure the object under test is properly isolated. Activate digital filters in noisy environments.
- Mesaje de eroare: 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. Garanție și asistență
10.1 Informații despre garanție
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 website:
Sonel Virtual Instrument Applications
For technical assistance, service, or further inquiries, please contact your authorized Sonel distributor or visit the official Sonel website-ul pentru informații de contact pentru asistență.
