Metrel MI 2892 Power Master: Brugermanual til 3-faset klasse A strømkvalitetsanalysator

1. Introduktion

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 og analyse.

Metrel MI 2892 Power Master device, front view

Figur 1.1: Forside 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
Temperatursonde
microSD memory card 8.0GB
microSD kortlæser
PC SW PowerView3 (software package)
RS232, USB and Ethernet patch cable
Strømforsyningsadapter
1.2 V NiMH rechargeable battery, 6 pieces
Professional protective waterproof carrying case
Instruktionsmanual (dette dokument)
Kalibreringscertifikat

Contents of the Metrel MI 2892 Industrial Set laid out, including the analyzer, cables, clamps, probes, and carrying case.

Figure 2.1: All components included in the Metrel MI 2892 Industrial Set.

3. Opsætning og indledende forberedelse

Before using the MI 2892 Power Master, ensure proper setup and initial preparation for accurate and safe operation.

3.1. Batteriinstallation og opladning

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. microSD Card Installation

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

Tilslut 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.
Nuværende Clamps: 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 ENTER 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 og Strøm: 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.
Energi: 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.
Bølgeform display: Real-time display, snapshot, and recording of waveforms.
Transients Recording: Captures rapid voltage changes with a sampling frequency of 49 kSampmindre/sek.
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.

MagtView3 Software: 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.
Meddelelse: The device supports RS232, USB, and Ethernet connections for data transfer and remote control.

5. Vedligeholdelse og pleje

Proper maintenance ensures the longevity and accuracy of your MI 2892 Power Master.

5.1. Rensning

Rengør instrumentets yderside med en blød, tør kludamp cloth. Do not use abrasive cleaners or solvents. Ensure all ports and connectors are free from dust and debris.

5.2. Batteripleje

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. Opbevaring

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. Kalibrering

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. Fejlfinding

This section provides solutions to common issues you might encounter with the MI 2892 Power Master.

6.1. Enheden tænder ikke

Tjek batterier: Ensure the NiMH batteries are correctly installed and fully charged.
Strømadapter: If using the power adapter, verify it is securely connected to both the device and a working power outlet.
Batteritilstand: If batteries are old, they may need replacement.

6.2. Measurement Readings Are Inaccurate or Erratic

Lead Connections: Bekræft alle bindtage measurement leads and current clamps are securely connected to the instrument and the circuit under test.
Clamp Orientering: Ensure current clamps are oriented correctly (indicated by arrows on the clamp).
Indgangsområde: 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.
Kalibrering: If issues persist, the device may require recalibration.

6.3. Problemer med dataoverførsel

microSD-kort: Ensure the microSD card is properly inserted and not full or corrupted. Try reinserting or using a different card.
Kabelforbindelse: Verify the RS232, USB, or Ethernet cable is securely connected between the instrument and the PC.
Software: Sørg for strømView3 software is correctly installed and updated on your PC.
Drivere: Check if necessary USB or communication drivers are installed on your PC.

7. Tekniske specifikationer

The following tables detail the technical specifications of the Metrel MI 2892 Power Master.

7.1. Generelle specifikationer

Fabrikant: Metrel
Model: MI 2892
ASIN: B08JNJK739
Dato først tilgængelig: 15. september 2020
Vise: 4.3 inch colour TFT (480 x 272)
Strømforsyning: 100-240 V AC, 6 x 1.2V NiMH rechargeable batteries
Målekategori: CAT III / 1000 V
Vægt: 0.96 kg
Dimensioner: 100 x 230 x 80 mm

7.2. Measurement Capabilities

Voltage: TRMS, peak, crest factor (4-channel), 0 ... 1000 Vrms (CAT III / 1000 V)
Strøm: TRMS, peak, crest factor (4-channel), supports automatic clamp anerkendelse
Magt: Active, reactive, apparent, fully compliant with IEEE 1459
Harmonic Analysis: Up to 50th harmonics, THD measurement
Energi: Active, reactive, generated, consumed
Hændelsesoptagelse: 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 kSampmindre/sek
Power Quality Analysis: According to EN 50160, including signalling and interharmonics
Overholdelse: IEC 61000-4-30 Klasse A

7.3. Datalagring og kommunikation

Hukommelse: microSD card (8GB supplied, supports up to 32GB)
Meddelelse: RS232, USB, Ethernet patch cable
Software: PC SW PowerView3

Table of technical specifications for the Metrel MI 2892, detailing voltage, current, power, and harmonic measurement ranges and accuracies.

Figure 7.1: Detailed technical specifications, part 1.

Table of technical specifications for the Metrel MI 2892, detailing general recorder, waveform recorder, transient recorder, and general device parameters.

Figure 7.2: Detailed technical specifications, part 2.

8. Garantioplysninger

The Metrel MI 2892 Power Master comes with a 2-year (24-month) warranty 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. Support og kontaktoplysninger

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.

Fabrikant: Metrel

Webwebsted: 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.

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Metrel MI 2892