HZ3521 Portable 0.05 Class Three Phase Energy Meter Test Equipment

HZ3521 Portable 0.05 Class Three Phase Energy Meter Test Equipment
National Grid SupplierProduct Description Details :²Accuracy classes: 0.05%, 0.1%²Measurement of energy meter errors, display of voltage, current, power, power factor, frequency etc.²Measurement of harmonics of 2ndto 51st²Measurement of clock error (of energy meter)²Measurement of transformation ratio for CT²Communication examination for energy meters²Measurement for register²Detection of wiring failures and calculation of electricity compensation²USB and communication ports available²Self adjusted clamp-on CT’s (KHPEC’s patent) provided²Double of power supply via lithium battery or PTMain features:·Automatic/manual measurement of single phase, three phase three wire, three phase four wire active and reactive induction energy meters and static energy meters (by sampling pulse)·Comparisonmeasurement of voltage, current, power, power factor, phase,frequencyof other electric instruments and transmitter by·Measurement of secondary burden of PT and CT; proofreading of constant of energy meter; energy measurement of four quadrants·Simultaneous measurement of errors for active and reactive energy meters; simultaneous measurement of errors of master and sub meter; automatic calculation of standard deviation estimates·Simultaneous measurement of active and reactive errors for load management terminal and distribution/ substation monitoring terminals; measured data can be read and stored via RS 485 port or IR port·Equipped with RS485,RS232, IR and USB port-Via the USB port, information of customers and energy meter can be downloaded from the marketing management system; measured data can also be uploaded to the management system-KWh, voltage, current, power and phase angle ect of energy meter and management terminals can be read via RS485(RS232) or IR port; also, broadcasting or command (according to the reference meter) time pairing provided·Self adjusted clamp-on CT’s enable long term accuracy; minimum measuring range of current to 1mA (with 1A/5A clamp-on CT’s)·Wiring testing is accessible on a new no-load field (with PT/CT)·Barcode input via external scanner, ID number of energy meter and number of seal can be read, and easily input on site·Touch screen supports handwriting input·True reactive digital measurement technique, stable operation without influences of voltage/current unbalances, phase angle asymmetry and frequency changes; reactive accuracy to 0.1%·Stability is highly improved without the utilization of potential meter·5A clamp-on CT’s with 0.2 accuracy class provided·20A,100A,500A,1000A clamp-on CT’s for selection; transformation ratio of CT can be measured with the utilization of a 5A clamp-on CT’s meanwhile·Automatic diversion of voltage (30V~480V), 5A current direct input·Detection of regular wiring failures of three phase three wire(48), three phase four wire circuits(96);vector diagram display·Measurement of harmonics (2nd~51st), measured data can be stored·Simultaneous display of waves of three phases’ voltage and current·Data management-Measured data of 1000 energy meters can be stored including working parameters for further analysis-Communicable to PC, convenient connection to existing data base and management system;software is provided (optional)-With the utilization of a flash disk and upgrade software, measured data can be uploaded/downloaded at anytime·Double way of power supply via lithium battery or measured circuit·Light plastic enclosure designTechnical Data GeneralPower supplyAC57~450V, 50~60HzPower consumptionabout 10VAAmbient temperature-20℃--+40℃(accuracyassured)Relative humidity (not condensing)40%-95%Dimension(LxWxH, mm)249x154x58Weight1.8KgWarm-uptime< 3 minutesBattery endurance4 hoursLCD color display5.7”, 320x240 TFTCommunication portRS 232SafetyDeclaration of conformityCE conformedOperation referenceMeasuring rangesVoltageAC 30~480VCurrent:Direct connection—1A, 5AVia clamp-on CT’s: 5A, 20A(±0.2%, self adjusted), 100A, 500A, 1000A(±0.5%)Frequency45~65HzPhase-180 º ~+180ºConstant of pulse5A: FL=3.6x104P/KWh FH=3.6x107P/KWh Others: FL=36000x5/rated current (P/KWh)FH=3.6x107x5/ rated current (P/KWh)Harmonic measurementRange: 2nd~51stAccuracy: ±0.01% (compared to 100% fundamental wave)Transformation ratio deviation< ±0.5%Voltage deviation< ±0.01%Frequency deviation< ±0.01%(45-55Hz)Influence of temperature< ±5ppm/℃(typical)Variation in 24hrs.<±0.02%(class 0.1)<±0.01% (class 0.05)Intrinsic errorCurrent input( via Clamp-on CT’s)5A (self adjusted), 20A: ±0.2%100A, 500A, 1000A, 1500A: ±0.5%Direct connectionAccuracy class: 0.1Accuracy class: 0.05Active energy±0.1%±0.05%Reactive energy±0.1%±0.1%Active power±0.1%±0.05%voltage±0.1% ±0.05%current±0.1%±0.05%Frequency±0.05Hz±0.05HzPhase±0.1º±0.05ºOur Services
From the date of purchase within one year instrument, is a productquality problem free repair replacement, lifetime supply of maintenanceand technical services. The instrument has found anomalies ormalfunctions please contact us to arrange the most convenient treatmentoptions.Certifications