1. Introducció
The Metrel MI 2892 Power Master is a sophisticated, hand-held three-phase power quality analyzer designed for comprehensive analysis of electrical power distribution systems. It enables users to detect harmonics, analyze phasors, and identify waveform anomalies by simply connecting the device. This instrument is suitable for both long-term recording and troubleshooting power quality issues in three-phase and single-phase environments. Its user-friendly interface, including Quick Set buttons, facilitates efficient data overview i anàlisi.
Figura 1.1: Frontal view of the Metrel MI 2892 Power Master, showing its display and control buttons.
2. Package Contents (Industrial Set)
The MI 2892 Industrial Set includes all necessary components for immediate operation and comprehensive power quality analysis:
- Instrument Power Master (MI 2892)
- 1-phase flexible current clamps 3000 / 300 / 30 A (A 1227), 4 pieces
- Test probe (brown, black, grey, green, blue), 5 pieces
- Crocodile clip (brown, black, grey, green, blue), 5 pieces
- Voltage measurement lead (brown, black, grey, green, blue), 5 pieces
- Labels for color coding
- Sonda de temperatura
- microSD memory card 8.0GB
- lector de targetes microSD
- PC SW PowerView3 (software package)
- RS232, USB and Ethernet patch cable
- Adaptador d'alimentació
- 1.2 V NiMH rechargeable battery, 6 pieces
- Professional protective waterproof carrying case
- Manual d'instruccions (aquest document)
- Certificat de calibratge
Figure 2.1: All components included in the Metrel MI 2892 Industrial Set.
3. Configuració i preparació inicial
Before using the MI 2892 Power Master, ensure proper setup and initial preparation for accurate and safe operation.
3.1. Instal·lació i càrrega de la bateria
The device operates on 1.2 V NiMH rechargeable batteries. Insert the 6 supplied batteries into the battery compartment located on the rear of the instrument. Connect the power supply adapter to the instrument and a suitable power outlet to charge the batteries before first use. A full charge ensures maximum operating time.
3.2. Instal·lació de la targeta microSD
The MI 2892 supports microSD memory cards up to 32GB for data storage. An 8GB card is supplied. Locate the microSD card slot, typically on the side or bottom of the device, and gently insert the card until it clicks into place. Ensure the card is inserted correctly to avoid damage.
3.3. Connecting Measurement Leads and Clamps
Connecteu el voltage measurement leads and current clamps to the appropriate input terminals on the MI 2892. Use the provided color-coding labels to ensure correct phase connections (brown, black, grey, green, blue). The instrument features automatic clamp recognition and range selection for convenience.
- Voltage Leads: Connect the test probes and crocodile clips to the voltage measurement leads.
- Cl actualamps: Attach the flexible current clamps to the current input terminals. Ensure they are securely fastened.
4. Operating the MI 2892 Power Master
This section outlines the general operation and key functions of the MI 2892 for power quality analysis.
4.1. Powering On and User Interface
Press and hold the power button to turn on the device. The graphical color display will illuminate, showing the main menu or last active screen. Navigate through menus using the directional arrow buttons and confirm selections with the ENTRAR button. Quick Set buttons provide direct access to frequently used functions.
4.2. Key Measurement Functions
The MI 2892 offers a wide range of measurement capabilities:
- Voltage i actual: TRMS, peak, crest factor (4-channel).
- Power Measurements: Active, reactive, and apparent power, fully compliant with IEEE 1459.
- Harmonic and Interharmonic Analysis: Up to 50th harmonics, including THD measurement.
- Energia: Active, reactive, generated, and consumed.
- Event Capturing: Records power supply events such as shutdowns, interruptions, swells, and dips.
- Inrush Currents: Monitoring and recording of inrush currents.
- Visualització de forma d'ona: Real-time display, snapshot, and recording of waveforms.
- Transients Recording: Captures rapid voltage changes with a sampling frequency of 49 kSampmenys/seg.
- Power Quality Analysis: Comprehensive analysis according to EN 50160, including signalling and interharmonics.
4.3. Data Recording and Analysis
The instrument is designed for both short-term troubleshooting and long-term recording. Recorded data is stored on the microSD card. For detailed analysis, transfer the data to a PC and use the supplied PowerView3 software package.
- PoderView3 Programari: This PC software enables detailed analysis of recorded data, direct reading from the microSD memory card, analysis of long-term records, and automatic creation of professional test reports.
- Comunicació: The device supports RS232, USB, and Ethernet connections for data transfer and remote control.
5. Manteniment i cura
Proper maintenance ensures the longevity and accuracy of your MI 2892 Power Master.
5.1. Neteja
Netegeu l'exterior de l'instrument amb un drap suau iamp cloth. Do not use abrasive cleaners or solvents. Ensure all ports and connectors are free from dust and debris.
5.2. Cura de la bateria
Regularly charge the NiMH batteries. If the instrument will not be used for an extended period, remove the batteries to prevent leakage. Store batteries in a cool, dry place.
5.3. Emmagatzematge
Store the MI 2892 and its accessories in the professional protective waterproof carrying case when not in use. This protects the equipment from physical damage, dust, and moisture.
5.4. Calibració
For continued accuracy, it is recommended to have the MI 2892 calibrated periodically by an authorized service center. Refer to the calibration certificate for recommended intervals.
6. Solució De Problemes
This section provides solutions to common issues you might encounter with the MI 2892 Power Master.
6.1. El dispositiu no s'encén
- Comproveu les bateries: Ensure the NiMH batteries are correctly installed and fully charged.
- Adaptador d'alimentació: If using the power adapter, verify it is securely connected to both the device and a working power outlet.
- Estat de la bateria: If batteries are old, they may need replacement.
6.2. Measurement Readings Are Inaccurate or Erratic
- Lead Connections: Verify all voltage measurement leads and current clamps are securely connected to the instrument and the circuit under test.
- Clamp Orientació: Assegureu-vos que el cl actualamps are oriented correctly (indicated by arrows on the clamp).
- Rang d'entrada: Check if the correct input range is selected for the measurement. The device has automatic range selection, but manual override might be necessary in specific cases.
- Calibració: If issues persist, the device may require recalibration.
6.3. Data Transfer Issues
- Targeta microSD: Ensure the microSD card is properly inserted and not full or corrupted. Try reinserting or using a different card.
- Connexió per cable: Verify the RS232, USB, or Ethernet cable is securely connected between the instrument and the PC.
- Programari: Assegureu-vos de poderView3 software is correctly installed and updated on your PC.
- Conductors: Check if necessary USB or communication drivers are installed on your PC.
7. Especificacions tècniques
The following tables detail the technical specifications of the Metrel MI 2892 Power Master.
7.1. Especificacions generals
- Fabricant: Metrel
- Model: MI 2892
- ASIN: B08JNJK739
- Data de primera disponibilitat: 15 de setembre de 2020
- Visualització: 4.3 inch colour TFT (480 x 272)
- Font d'alimentació: 100-240 V AC, 6 x 1.2V NiMH rechargeable batteries
- Categoria de mesura: CAT III / 1000 V
- Pes: 0.96 kg
- Dimensions: 100 x 230 x 80 mm
7.2. Measurement Capabilities
- Voltage: TRMS, peak, crest factor (4-channel), 0 ... 1000 Vrms (CAT III / 1000 V)
- Actual: TRMS, peak, crest factor (4-channel), supports automatic clamp reconeixement
- Potència: Active, reactive, apparent, fully compliant with IEEE 1459
- Harmonic Analysis: Up to 50th harmonics, THD measurement
- Energia: Active, reactive, generated, consumed
- Enregistrament d'esdeveniments: Capturing and recording of power supply events (shutdowns, interruptions, swells, dips)
- Inrush Currents: Monitoring and recording
- Waveform/Inrush Displaying: Snapshot and recording
- Transients Recording: Sampling frequency 49 kSampmenys/seg
- Power Quality Analysis: According to EN 50160, including signalling and interharmonics
- Compliment: IEC 61000-4-30 Classe A
7.3. Data Storage and Communication
- Memòria: microSD card (8GB supplied, supports up to 32GB)
- Comunicació: RS232, USB, Ethernet patch cable
- Programari: PC SW PowerView3
Figure 7.1: Detailed technical specifications, part 1.
Figure 7.2: Detailed technical specifications, part 2.
8. Informació de la garantia
The Metrel MI 2892 Power Master comes with a Garantia d'2 any (24 mesos) from the manufacturer. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase and calibration certificate for warranty claims. For specific terms and conditions, refer to the warranty documentation included with your product or contact Metrel customer support.
9. Suport i informació de contacte
For technical assistance, service, or further information regarding your Metrel MI 2892 Power Master, please contact Metrel customer support or visit their official website. Ensure you have your product model number (MI 2892) and serial number ready when seeking support.
Fabricant: Metrel
Weblloc: www.metrel.si
Note: Contact information may vary by region. Please refer to the official Metrel website for the most up-to-date support details for your location.
