Product Description
GF3121 wireless three-phase kWh meter site verification (Accuracy class 0.05/0.1) Application It is suitable for measuring power grid companies test center, power supply company power supply management, power metering, technical supervision department, industrial and mining enterprises, petroleum, chemical industry, electric power measure of the department. Main functions and features: 1, To check single-phase and three-phase induction type, mechanical and electrical meter; and it can also check two different constants of watt-hour meter; 2, Real-time field measurement three-phase voltage, current, active power, reactive power, phase, power factor, frequency, power, and a screen display all measured parameters; 3, To measure CT variable ratio; Display voltage current vector diagram and check the wiring errors, giving the wrong wiring state power loss; 4, Several way of power supply, external AC power supply, it also can line voltage power supply; 5, Dynamic tracking load changes, the voltage, current fluctuating site also can steadily calibration watt-hour meter error; 6, Divided into direct measurements and current clamp measurement, good stability, safety and reliability; 7, Optional 5 A, 20 A, 100 A, 500 A, 1000 A, 2000 A current clamp; 8, To measure 2 ~ 63 times harmonic content, showed great harmonic wave diagram and the figure, the harmonic analysis; 9, With micro printer, but the spot printing; And can take barcode scanners to be automatic scanning electric energy meter, the table; 10, with intelligent photoelectric sampler, convenient to the pulse to adopt several watt-hour meter. 11, Big screen color liquid crystal display, simple operation, convenient; the large capacity memory, it can store 5000 sets of data; 12, With RS232 interface, which can be the scene of the measurement data storage will be turning to the computer analyzed with; 13, With wireless PDA, convenient operation and data management. Technical Data project Measurement range Effective resolution accuracy other voltage 6~600V 0．001V 0．05% Current CT 0．002~20A 0．0002A 0．05% Current (clamp) 0．01~100A 0．001A 0．15% frequency 45~65Hz 0．001Hz 0．01Hz Active power 0~±Umax X Imax 0．0001W 0．05% Reactive power 0~±Umax X Imax 0．0001Var 0．1% Installed power 0~±Umax X Imax 0．0001VA 0．1% Active power 0．05% Reactive power 0．1% Power factor 0~±1 0．0001 ±0．001 Phase Angle 0~359．999º 0．001 º ±0．02 º Power constant 72000imp/kWh、7200imp/kWh、720imp/kWh*4 Use of the environment -10~+55℃，15~85%RHD，altitude ：-10~3500米 Temperature on the ≤10ppm/℃（U/I）， ≤15ppm/℃（Other quantities ） Frequency influence ≤20ppm/Hz Pulse interface TTL level * 6 Communication interface RS232 Power supplies 1 Line voltage power supply 40 ~ 450 V AC, 10 VA Power supplies 2 External communication power supply 220 V plus or minus 10% AC, frequency 50 Hz Host outside dimensions 300mm×300mm×300mm Host quality 3.5Kg
