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MI 2792A PowerQ4 Plus
Introduction
1 Introduction
PowerQ4 Plus is handheld multifunction instruments for power quality analysis and energy efficiency measurements.
Figure 1.1: Instrument PowerQ4 Plus
1.1 Main Features
4 voltage channels with wide measurement range: 0 ÷ 1000 Vrms, CAT III / 1000
V.
4 current channels with support for automatic clamp recognition and “on instrument” range selection
.
Compliance with power quality standard IEC 61000-4-30 Class A/S. Predefined recorder profile for EN 50160 survey.
Simultaneous 8 channels - 16bit AD conversion for accurate power measurements (minimal phase shift error).
Simple to use and powerful recorder with 8 MB of memory and possibility to record 524 different power quality signatures.
Interharmonics and mains signalling measuring and recording.
1
only with Metrel »Smart clamps«
6
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Table of contents
- 6 Introduction
- 6 Main Features
- 7 Safety considerations
- 8 Applicable standards
- 8 Abbreviations
- 12 Description
- 12 Front panel
- 13 Connector panel
- 14 Bottom view
- 14 Accessories
- 14 Standard accessories
- 15 Optional accessories
- 16 Operating the instrument
- 17 Instrument Main Menu
- 18 Instrument main functions
- 19 U, I, f menu
- 19 Meter
- 20 Scope
- 22 Trend
- 25 Power menu
- 25 Meter
- 26 Trend
- 28 Energy menu
- 29 Harmonics / interharmonics menu
- 29 Meter
- 31 Histogram (Bar)
- 32 Trend
- 35 Flickermeter
- 35 Meter
- 36 Trend
- 37 Phase Diagram
- 37 Phase diagram
- 38 Symmetry diagram
- 39 Symmetry trend
- 41 Temperature
- 41 Meter
- 41 Trend
- 42 General Recorder
- 45 Waveform recorder
- 45 Setup
- 47 Capturing waveform
- 48 Captured waveform
- 51 Inrush / Fast recorder
- 52 Setup
- 53 Capturing inrush
- 54 Captured inrush
- 56 Transients recorder
- 56 Setup
- 57 Capturing transients
- 58 Captured transients
- 61 Events table
- 65 Alarms table
- 66 Memory List
- 68 Record
- 70 Waveform snapshoot
- 71 Waveform record
- 71 Inrush/Fast logger
- 71 Transients record
- 71 Measurement Setup menu
- 72 Connection setup
- 74 Event setup
- 74 Alarm setup
- 76 Signalling setup
- 76 General Setup menu
- 77 Communication
- 79 Time & Date
- 79 Language
- 80 Clear Memory
- 81 Instrument info
- 81 Lock/Unlock
- 83 Recording Practice and Instrument Connection
- 83 Measurement campaign
- 87 Connection setup
- 87 Connection to the LV Power Systems
- 91 Connection to the MV or HV Power System
- 92 Current clamp selection and transformation ratio setting
- 96 Temperature probe connection
- 97 GPS time synchronization device connection
- 98 GPRS modem connection
- 99 Number of measured parameters and connection type relationship
- 102 Theory and internal operation
- 102 Measurement methods
- 102 Measurement aggregation over time intervals
- 102 Voltage measurement (magnitude of supply voltage)
- 103 Current measurement (magnitude of supply current)
- 103 Frequency measurement
- 104 Phase power measurements
- 104 Total power measurements
- 105 Energy
- 106 Harmonics and interharmonics
- 107 Signallling
- 108 Flicker
- 109 Voltage and current unbalance
- 110 Voltage events
- 112 Alarms
- 113 Data aggregation in GENERAL RECORDING
- 117 Waveform snapshoot
- 117 Waveform record
- 118 Transient recorder
- 118 Inrush/Fast recorder