1. ບົດແນະນຳ
The Metrel MI 2885 Master Q4 is a sophisticated 3-phase power quality analyzer designed for comprehensive electrical system analysis. This instrument is engineered to automatically record critical data and waveforms related to voltage events such as dips and swells. It also supports user-defined triggers for capturing specific quantities. This manual provides essential information for the proper setup, operation, and maintenance of your MI 2885 Master Q4 device.
For detailed analysis and reporting, the included PC software PowerView3 enables advanced data processing and professional report generation. The device is compliant with power quality standard IEC 61000-4-30 Class S (0.1%) and performs complete power quality analysis according to EN 50160.
2. ຜະລິດຕະພັນເກີນview
2.1 ລັກສະນະທີ່ສໍາຄັນ
- Three-Phase Power Quality Analysis: ມາດຕະການ Voltage/Current TRMS, Peak, and Crest Factor across 4 channels.
- ຂອບເຂດການວັດແທກກວ້າງ: 4-voltage channels (0 to 1000 Vrms, CAT III / 1000 V) and 4-current channels with automatic clamp ການຮັບຮູ້.
- ການປະຕິບັດຕາມ: Adheres to IEC 61000-4-30 Class S (0.1%) and EN 50160 for complete power quality analysis, including signaling and interharmonics.
- ການບັນທຶກເຫດການ: Captures and records power supply events such as shutdowns, interruptions, swells, and dips.
- Harmonic Analysis: Performs harmonic and interharmonic analysis up to the 50th harmonic, including THD measurement.
- Inrush Current Monitoring: Records and displays inrush currents.
- ການເກັບຮັກສາຂໍ້ມູນ: Utilizes a microSD memory card (8GB included) for extensive data logging.
- ຊອບແວ PC: Includes PowerView3 for advanced data analysis, reporting, and remote control.
2.2 ອຸປະກອນລວມ
The MI 2885 Master Q4 package typically includes the following components:
- MI 2885 Master Q4 Instrument
- 1-phase flexible current clamps 3000 / 300 / 30 A (A 1502), 4 pieces
- Test probes (brown, black, grey, green, blue), 5 pieces
- Crocodile clips (brown, black, grey, green, blue), 5 pieces
- ສະບັບtage measurement leads (brown, black, grey, green, blue), 5 pieces
- Labels for color coding
- microSD memory card 8.0GB
- ຕົວອ່ານບັດ microSD
- PC SW PowerView3
- RS232, USB, and Ethernet patch cables
- ຕົວປັບການສະຫນອງພະລັງງານ
- 1.2 V NiMH rechargeable batteries, 6 pieces
- ກະເປົາຖືເບົາ
- ຄູ່ມືການນໍາໃຊ້ (ເອກະສານນີ້)
- ໃບຮັບຮອງການປັບທຽບ
ຮູບ 1: ດ້ານຫນ້າ view of the Metrel MI 2885 Master Q4 Power Quality Analyzer, showing the display and control buttons.
Figure 2: The Metrel MI 2885 Master Q4 instrument displayed with its full set of included accessories, including current clamps, test leads, and carrying bag.
3. ຕັ້ງຄ່າ
3.1 ການຕິດຕັ້ງ ແລະສາກແບັດ
- Open the battery compartment cover located on the rear of the instrument.
- Insert the 6 provided 1.2 V NiMH rechargeable batteries, ensuring correct polarity.
- ປິດຝາປິດຊ່ອງໃສ່ຫມໍ້ໄຟຢ່າງປອດໄພ.
- Connect the power supply adapter to the instrument and a suitable power outlet to charge the batteries before first use. The charging indicator on the device will confirm charging status.
3.2 Connecting Measurement Leads and Clamps
- ລະບຸ voltage input terminals and current clamp inputs on the instrument.
- ເຊື່ອມຕໍ່ voltage measurement leads to the appropriate voltage input terminals. Use the provided color-coding labels for clear identification (brown, black, grey, green, blue).
- Attach the crocodile clips or test probes to the ends of the voltage measurement leads.
- Connect the flexible current clamps (A 1502) to the current input terminals. The instrument supports automatic clamp ການຮັບຮູ້.
- Ensure all connections are secure before proceeding with measurements.
3.3 ການເປີດເຄື່ອງເບື້ອງຕົ້ນ ແລະ ການນຳທາງພື້ນຖານ
- Press and hold the power button (usually marked with a red circle and line) to turn on the instrument.
- The device will perform a self-test and display the main menu.
- ໃຊ້ປຸ່ມລູກສອນ (ຂຶ້ນ, ລົງ, ຊ້າຍ, ຂວາ) ເພື່ອນຳທາງຜ່ານຕົວເລືອກເມນູ.
- ກົດ ປ້ອນ ປຸ່ມເພື່ອເລືອກຕົວເລືອກ ຫຼືຢືນຢັນການຕັ້ງຄ່າ.
- ກົດ ESC ເພື່ອກັບໄປຫາເມນູກ່ອນໜ້ານີ້ ຫຼື ຍົກເລີກການດຳເນີນງານ.
- ປຸ່ມຟັງຊັນ F1, F2, F3, F4 provide context-sensitive options displayed on the screen.
4. ຄໍາແນະນໍາການດໍາເນີນງານ
4.1 ຫນ້າທີ່ການວັດແທກ
The MI 2885 Master Q4 offers a wide array of measurement capabilities:
- ສະບັບtage: TRMS, peak, crest factor (4-channels).
- ປັດຈຸບັນ: TRMS, peak, crest factor (4-channels).
- ພະລັງງານ: Active, reactive, apparent.
- Power Measurements: Fully compliant with IEEE 1459 (active, non-active, fundamental, harmonic, load unbalance).
- VFD (Variable Frequency Drives) ການວັດແທກ.
- Unbalance, Flicker Measurement.
- Harmonic and Interharmonic Analysis: Up to 50th harmonics, THD measurement.
- ພະລັງງານ: Active, reactive, generated, consumed.
- Capturing and Recording of Power Supply Events: Shutdowns, interruptions, swells, dips.
- Inrush Currents: Monitoring and recording, waveform/inrush displaying, snapshot and recording.
- Power Quality Analysis: According to EN 50160.
- ການວັດແທກອຸນຫະພູມ.
- Photo-Voltaic Inverter Efficiency Measurements.
- Power Factor, cos φ.
4.2 ປະຕິບັດການວັດແທກ
- Ensure the instrument is properly connected to the electrical system to be measured. Refer to Section 3.2 for connection details.
- From the main menu, navigate to the desired measurement function (e.g., "Power Quality," "Harmonics," "Event Recording").
- Select the measurement type and configure any necessary parameters (e.g., recording interval, trigger levels).
- Initiate the measurement. The instrument will begin collecting and displaying data.
- To stop a measurement or recording, press the ESC button or follow on-screen prompts.
4.3 Data Recording and Export
The MI 2885 Master Q4 automatically records important data to the inserted microSD card. Recorded data can be reviewed on the instrument or exported for detailed analysis.
- On-Instrument Review: Navigate to the "Recorded Data" or "History" section in the menu to view past measurements and events.
- PC Software PowerView3: Connect the instrument to a PC using the provided USB, RS232, or Ethernet cable. Use the PowerView3 software to download, analyze, and generate reports from the recorded data. PowerView3 offers advanced features like data filtering, trend analysis, and graphical representation of measurements.
Figure 3: Screenshot illustrating the Metrel PowerView3 PC software interface, showing various graphs and data analysis capabilities for power quality measurements.
5. ບໍາລຸງຮັກສາ
5.1 ການທໍາຄວາມສະອາດ
ເຮັດຄວາມສະອາດອຸປະກອນເປັນປະຈໍາ casing ແລະສະແດງດ້ວຍ soft, damp cloth. Do not use abrasive cleaners or solvents, as these can damage the device. Ensure the instrument is powered off and disconnected from all power sources before cleaning.
5.2 ການດູແລຫມໍ້ໄຟ
- Charge the NiMH batteries fully before extended storage to prolong their lifespan.
- If the instrument will not be used for a long period, remove the batteries to prevent leakage.
- Replace batteries when their performance degrades significantly. Use only recommended NiMH rechargeable batteries.
5.3 ການອັບເດດເຟີມແວ
Periodically check the Metrel website or use the PowerView3 software for available firmware updates. Firmware updates can introduce new features, improve performance, or address known issues. Follow the instructions provided with the update package carefully.
6. ການແກ້ໄຂບັນຫາ
This section addresses common issues you might encounter with the MI 2885 Master Q4. For problems not listed here, contact Metrel technical support.
6.1 ບັນຫາທົ່ວໄປ ແລະການແກ້ໄຂ
- Instrument does not power on:
- ໃຫ້ແນ່ໃຈວ່າມີການຕິດຕັ້ງ ແລະສາກໄຟຢ່າງຖືກຕ້ອງ.
- Verify the power supply adapter is functioning if attempting to power via external source.
- No measurement readings:
- Check all measurement lead and current clamp connections for proper seating.
- Ensure the correct measurement function is selected on the instrument.
- Verify that the current clamps are correctly positioned around the conductors.
- Data not saving to microSD card:
- ໃຫ້ແນ່ໃຈວ່າແຜ່ນ microSD ຖືກໃສ່ຢ່າງຖືກຕ້ອງ.
- ກວດເບິ່ງວ່າບັດ microSD ມີພື້ນທີ່ຫວ່າງພຽງພໍຫຼືບໍ່.
- Try formatting the microSD card (Note: This will erase all data on the card. Back up important data first.).
- Communication issues with PC (PowerView3):
- Verify the USB, RS232, or Ethernet cable is securely connected to both the instrument and the PC.
- Ensure the correct communication port is selected in the PowerView3 ຊອບແວ.
- Restart both the instrument and the PC.
7. ຂໍ້ມູນຈໍາເພາະ
The following tables provide detailed technical specifications for the Metrel MI 2885 Master Q4 Power Quality Analyzer.
7.1 ຂໍ້ມູນຈໍາເພາະທົ່ວໄປ
| ພາລາມິເຕີ | ມູນຄ່າ |
|---|---|
| ຍີ່ຫໍ້ | Metrel |
| ຕົວແບບ | MI 2885 Master Q4 |
| ແຫຼ່ງພະລັງງານ | Battery Powered (1.2 V NiMH rechargeable batteries) |
| ຈໍສະແດງຜົນ | 4.3 inch color TFT (480 x 272) |
| ການສື່ສານ | USB, RS232, ອີເທີເນັດ |
| ຄວາມຊົງຈໍາ | 8GB microSD, up to 32GB supported |
| Overvoltage ປະເພດ | CAT IV / 600V or CAT III / 1000V |
| ນ້ຳໜັກ | 0.9 ກິໂລ |
| ຂະໜາດ | 230 x 140 x 80 ມມ |
ສະບັບທີ 7.2tage Inputs (AC+DC)
| ພາລາມິເຕີ | ມູນຄ່າ |
|---|---|
| ປະລິມານທີ່ລະບຸtage range (L-N) | 1000 Vrms |
| ໄລຍະການວັດແທກ | 10% ... 150% of nominal voltage |
| ຄວາມຖືກຕ້ອງ | 0.2% of nominal voltage |
| Sampອັດຕາການລິງ | 5 ກສamples per sec @ 50/60 Hz, sync with mains freq. |
| ຊ່ວງຄວາມຖີ່ຫຼັກ | 42.5 ... 69.0 Hz ± 10 mHz |
7.3 Current Inputs (AC+DC)
| ພາລາມິເຕີ | ມູນຄ່າ |
|---|---|
| Measuring range (with A1502 clamps) | 3 ... 6000 Arms ± 1.5% of m.v. |
| Measuring range (with A1281 clamps) | 50 m ... 1200 Arms ± 0.5% of m.v. |
7.4 Functions and Accuracy
| ຟັງຊັນ | ໄລຍະການວັດແທກ | ຄວາມຖືກຕ້ອງ |
|---|---|---|
| Power (P, Q, S) | ຂຶ້ນກັບ voltage and selected clamps | IEC 61000-4-30 Class S (0.1%) |
| ພະລັງງານ | ຂຶ້ນກັບ voltage and selected clamps | IEC 62053-21 ຫ້ອງຮຽນ 1, IEC 62053-23 ຫ້ອງຮຽນ 2 |
| Harmonics (DC ... 50th) @ 50/60 Hz | 0 ... 20% of nom. voltage | IEC 61000-4-7 ຫ້ອງຮຽນ 1 |
| ກະພິບ | 0.2 ... 10 | IEC 61000-4-15 Class F3 |
| ບໍ່ສົມດຸນ | ສະບັບtage: 0 ... 5%, Current: 0 ... 20% | IEC 61000-4-30 Class S |
| ອຸນຫະພູມ | -10 ... +85 °C | ±0.5°C |
| Dips, Swell | 10 ... 150% of nom. voltage | ± 0.2% ຂອງ voltage, ±1 cycle |
| ການຂັດຂວາງ | 0 ... 10% of nom. voltage | ±1 cycle |
Figure 4: A page from the technical specifications document, detailing various measurement parameters, ranges, and accuracies for the MI 2885 Master Q4.
8. ການຮັບປະກັນແລະການສະຫນັບສະຫນູນ
8.1 ການຮັບປະກັນຜະລິດຕະພັນ
The Metrel MI 2885 Master Q4 Power Quality Analyzer comes with a ຮັບປະກັນ 2 ປີ (24 ເດືອນ) ຈາກຜູ້ຜະລິດ. ການຮັບປະກັນນີ້ກວມເອົາຂໍ້ບົກພ່ອງຂອງວັດສະດຸແລະການເຮັດວຽກພາຍໃຕ້ການນໍາໃຊ້ປົກກະຕິ. ກະລຸນາຮັກສາຫຼັກຖານການຊື້ຂອງທ່ານສໍາລັບການຮຽກຮ້ອງການຮັບປະກັນ.
8.2 ສະຫນັບສະຫນູນດ້ານວິຊາການ
For technical assistance, troubleshooting, or service inquiries, please contact Metrel customer support. Refer to the official Metrel website for the most current contact information, including phone numbers and email addresses for your region.
Additional resources, such as FAQs, software downloads, and updated manuals, may also be available on the Metrel webເວັບໄຊ: www.metrel.si
