Product Description
GF311 Three-phase Multi-function Phase Current-voltage Meter (Accuracy class 0.5) Application it is suitable for various electric power dispatching center, relay protection department of relay protection in power plant, the power company is metric division class, inspectors, but also suitable for petroleum, railways and the iron and steel industry electric power department. GF311 three-phase multi-function phase current-voltage meter: 3 road current, 3 road voltage GF311B three-phase multi-function phase current-voltage meter:6 road current, 3 road voltage Main functions and features: 1, simultaneously measuring three-phase voltages, three phase current, power, frequency, power factor, phase, etc.; 2, directly display vector map for the use of user; 3, the horizontal liquid crystal big screen TFT, a screen all electric parameters; 4, the small current can measure to 1 mA, 2 mA above can display vector diagram; 5, small volume, light weight (0.8 kg), the operation is simple, convenient; 6, DSP digital signal processing chip, wide measuring range, high accuracy, good stability; 7, instrument can store data, test can be finished by using computer software to upload management; 8, automatic switch range, precision instrument calibration software. Technical Data A/B/C three-phase voltage range: 0 ~ 450 V; Resolution: 0.01 V accuracy: 0.5%; A/B/C three phasecurrent measure range: 1 mA ~ 10 A; Resolution: 0.1 mA; Accuracy: 0.5 % Active, reactive power measurement accuracy: 0.5%; Phase Angle measurement 0 ~ 360 o accuracy: 1.0°; Frequency measurements 45-65 Hz resolution: 0.01 Hz; Accuracy: 0.1 Hz; Voltage circuit input impedance: > 500 K Ω; The power supply voltage: charging the battery power supply can be continuously used eight hours; The line voltage power supply range: 40 ~ 450 V AC frequency 50 Hz; The power consumption: ac power supply than 10 VA; Frequency influence: signal in 45 Hz to 55 Hz range
