Portable power and power quality analyzer | 8" touchscreen | data and event logging | MODBUS RTU | MQ31

Technical Specifications

Type: Portable power and power quality analyzer
Model: MQ31
Display: 8" color touchscreen
Power supply: From main circuit 90–528 V AC or external 18650 lithium battery (not included)
Communication: MODBUS RTU
Harmonic analysis: Up to the 51st harmonic (simultaneous)
Data storage: 16 GB microSD, data download via USB
Enclosure: Portable transport case
Supported current sensors: Rogowski coils; current clamps
Configurable current ranges: 600 A / 3000 A / 6000 A
Recommended Rogowski coils:
– 600 A – MRC-36
– 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; phase angle and imbalance; load; harmonic values and THD; voltage sags and swells; waveform display
Event recording: Event type; start time and duration; amplitude; voltage RMS 1/2; voltage waveform
Additional features: Online power quality monitoring platform (optional), long-term on-site measurement, data analysis for reports and audits
Included accessories: 4 pcs voltage clips

Functions

Voltage and current measurement – real-time power network monitoring

Power and energy analysis – load and consumption evaluation

Harmonic analysis (up to 51st) – detection of power quality distortions

Sag / swell and imbalance – voltage fluctuation detection

Waveform display – fast fault diagnostics

Data and event logging – measurement history for analysis

Applications

For engineers / energy specialists: Power quality and harmonic audits, detailed root cause analysis
For industrial and commercial facilities: Monitoring of production lines and substations, analysis of critical power points
For electricians: Fast on-site network and load checks, detection of faults and voltage fluctuations

Pros

Large 8" touchscreen

True Power Quality Analyzer

Harmonic analysis up to the 51st order

Current measurement up to 6000 A

Portable, ready for on-site use

Cons

Sensors selected separately

Designed for professional use