
Portable Rogowski power and power quality analyzer | with data logging | 3.5" IPS display | 12 V DC | MQ41
Code: ESMQ41A portable power and power quality analyzer designed for detailed diagnostics, audits, and long-term monitoring of three-phase and single-phase electrical networks. The device is intended for on-site use in industrial and outdoor environments and is integrated into a robust transport case, allowing measurements to be carried out safely directly at the location. The analyzer supports Rogowski coils, 333 mV current transformers, and current clamps, enabling current measurements up to 6000 A without disconnecting the power supply.
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Technical specifications
Type: Portable power and power quality analyzer
Model: MQ41
Display: 3.5" IPS color
Power supply: 12 V DC
Communication: Ethernet – MODBUS TCP; MODBUS RS485
Harmonic analysis: 1–50 harmonics
Data storage: 32 GB TF (microSD) card
Data reading via USB
Design: integrated transport case
Supported current sensors: Rogowski coils; 333 mV CT current transformers; current clamps
Recommended Rogowski coils:
100 A – MRC-16; 300 A – MRC-24; 600 A – MRC-36; 1000 A – NRC-100; 3000 A – NRC-150; 6000 A – NRC-200
Current clamps:
ST08 – 10 A / 100 mA / 10 A; ST08 – 10 A / 320 mV
Voltage measurement: Direct or via VT – up to 500 kV
Recorded parameters: Current; Voltage; Active and reactive power; Electrical energy; Power factor (cos φ); Demand; Harmonic spectrum; Phase angle; Phase balance; Frequency; Maximum and minimum values; Voltage sags and swells; Real-time waveform
Package contents: 4 pcs voltage clips; power / communication adapterFunctions
Voltage and current measurement – real-time network monitoring
Power and energy analysis – consumption and load assessment
Harmonic analysis – identification of power quality issues
Waveform + sag/swell – signal shape and voltage fluctuation recording
Data logging – measurement storage and export
MODBUS communication – integration with control systemsApplications
For engineers / energy specialists: Power quality and harmonic audits, fault and instability analysis
For industrial and commercial facilities: Monitoring of production lines and transformers, analysis of critical power points
For electricians: Commissioning, testing and diagnostic tasks, on-site load and phase checksPros
True Power Quality Analyzer
Integrated transport case
Waveform and event analysis
Wide current range up to 6000 A
MODBUS TCP / RS485 communicationCons
Requires 12 V power supply
Rogowski coils and current clamps not included
Designed for professional useIllustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.This product is marked with the CE label, which confirms that it complies with all applicable European Union directives and regulations. CE marking is not just a formality – it is an important indicator of quality and safety, ensuring that the product has been properly assessed, tested, and can be safely used throughout the EU market.
CE certification means that the product has been evaluated according to the main criteria:
Safety requirements – ensures that the product does not pose a risk to the user or the environment
Electromagnetic compatibility (EMC) – the device does not interfere with other equipment and is resistant to external disturbances
Environmental standards – complies with current ecological and material usage requirements
Operational reliability – the product is suitable for long-term use according to its intended purposeCE marking allows this product to:
be legally supplied and used in all European Union countries
ensure a high level of quality and safety
be used in residential, commercial, and industrial environmentsThe CE mark is a declaration of the manufacturer’s responsibility, confirming that the product complies with all applicable standards and has been assessed according to EU legislation.
What does this mean for you as a buyer?
Safe use in everyday activities
Reliable performance and reduced risk of failure
Compliance with EU standards and requirements
Suitability for professional solutions
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