Model: MQ21
Type: Three-phase power quality analyzer
Supports current sensors: Voltage output type current clamp, Rogowski coil
Supports wiring configuration: Three-phase four-wire 4CT, Three-phase four-wire 3CT, Three-phase three-wire 3CT, Three-phase three-wire 2CT, Single-phase
Storage configuration: 16GB card, USB download, default storage interval 1 minute
Harmonic measurement: Simultaneous measurement of 51 harmonics
Applications: Power analysis, power measurement
Display screen: 1.3-inch color OLED
Weight: Approx. 400g
Dimensions: 139.5 x 5.6 cm
Color: White
600A range - Primary current 0.5A~720A
3kA range - Primary current 0.5A~3600A
6kA range - Primary current 0.5A~7200A
Secondary current range (ST08 clamp): 1mA~6A
Input voltage range 1/2²⁵mV~707mV
Overload capacity: 2V, 10s/hours
Power supply: Main circuit power: 90~528VAC; can be connected to an external lithium battery
Maximum power consumption: 2000mW
ABC phase current input: SATA interface
N phase current input: 5.08mm terminal
Voltage input: 7.62mm pitch terminal
Measurement items - Voltage: UA, UB, UC and average value
Measurement items - Current: IA, IB, IC, IN and average value
Measurement items - Power: Active/reactive/apparent power of each phase and the total of the three phases
Measurement items - Energy: Active/reactive/apparent energy of each phase and the total of the three phases, automatically reset when exceeding 999.9GWh
Measurement items - Angle: Line voltage phase angle, current phase angle
Measurement items - Power factor: PF including harmonics, DPF (average of each phase and the three phases)
Measurement items - Maximum and minimum values Voltage, Current, Power Maximum/Minimum
Measurement Item - Unbalance: Voltage, Current, and Maximum Unbalance of Each Phase and Three Phases
Measurement Item - Demand: Current, Power, and Average/Maximum Demand of Each Phase and Three Phases
Measurement Item - Temperature and Humidity: Temperature (3 channels), Humidity (1 channel)
Measurement Item - Power Quality: Voltage Surge/Drop, 1st-51st Harmonics and Percentage
Rogowski Coil - 600A Range Accuracy 0.5% (6A-720A), Recommended TRC-36 50mV/kA
Rogowski Coil - 3000A Range Accuracy 0.5% (10A-3600A), Recommended NRC-150 85mV/kA
Rogowski Coil - 6000A Range Accuracy 0.5% (20A-7200A), Recommended NRC-200 50mV/kA
ABC Phase Voltage Accuracy: 0.2% (5~600V AC)
Power Factor Accuracy: ±0.005
Active/Apparent Power Accuracy: IEC62053-22 0.5S Class
Reactive Power Accuracy: IEC62053-21 2S Class
Frequency Accuracy: 0.01% (45-65Hz)
Active Energy Accuracy: IEC62053-22 0.5S Class
Reactive Energy Accuracy: IEC62053-21 2S Class
Operating Temperature: -25℃~+55℃
Storage Temperature: -40℃~+85℃
Operating Humidity: 5-95% RH@50℃ (non-condensing)
Pollution Degree: 2
Overvoltage Category: Class III, compatible with 277/480VAC Power Distribution System
Insulation Strength: IEC61010-1
Maximum Applicable Altitude: 3000m
Protection Rating: IP20 (IEC 60629)
Warranty Period: 24 Months
EMC Electrostatic Discharge Immunity: Class IV (IEC61000-4-2)
EMC Radiated Immunity: Class III (IEC61000-4-3)
EMC Fast Transient/Surge Immunity: Class IV (IEC61000-4-4/5)
EMC Conducted Immunity: Class III (IEC61000-4-6)
EMC Power Frequency Magnetic Field Immunity: 0.5mT (IEC61000-4-8)
EMC Conducted and Radiated Emissions: Class B (EN55022)
Complies with Standards: EN62052-11, EN61010 series, etc.
Safety Precautions: When handling Rogowski coils, take precautions against electric shock. Do not twist, squeeze, or forcibly bend them.