CONSTANT 250ER

Features Power measurement of 3-phase 3-wire circuit, 3-phase 4-wire circuit and single phase circuit Measure V, A, W, VA, VAR, kWh, Power Factor ( Cos j) , and Hz Double scales analogue bar graph to display voltage & current fluctuation Minimum current of Active Energy measurements is 5A, measure expanding energy per hour of general electrical equipment. Measure and display 5 parameters of power of each phase : Active Power, Apparent Power, Power Factor, Reactive Power, Active Energy, and Total Power value in 3-phase measurement mode respectively Double lines display 2 parameters on each menu, store 28 groups of measurement parameter Display measurement time and select tested voltage signal at one time in Active Energy measurement mode for long measurement Portable, light and easy to carry External power supply for long time active energy measurement Maximum/ minimum value measurement ” OL” for input voltage exceeds 600V, current exceeds 1000A, active power exceeds 600kW Low battery indication Function Range - Resistance Accuracy Resistance 0.01 ~ 0.999© - 0.001© ± ( 1.5% rdg + 0.01© ) 1 ~ 9.99© - 0.01© ± ( 1.5% rdg + 0.1© ) 10 ~ 99.9© - 0.1© ± ( 2.0% rdg + 0.3© ) 100 ~ 199.9© - 1© ± ( 3.0% rdg + 1© ) 200 ~ 400© - 5© ± ( 6.0% rdg + 5© ) 400 ~ 600© - 10© ± ( 10% rdg + 10© ) 600 ~ 1200© - 20© ± ( 20% rdg + 20© ) AC Current 100mA - 0.1mA ± ( 2.5% rdg + 1mA) 300mA - 0.3mA ± ( 2.5% rdg + 2mA) 1A - 0.001A ± ( 2.5% rdg + 0.003A) 3A - 0.003A ± ( 2.5% rdg + 0.01A) 10A - 0.01A ± ( 2.5% rdg + 0.03A) 20A - 0.03A ± ( 2.5% rdg + 0.05A) Display 4 digits, 9999 counts Max. Conductor Size ø 32mm or 45mm x 32mm Battery 9V Alkaline Size / Weight H276 x W104 x D54mm / Approx. 1050g Standard Accessories 3 Calibration Loops ( 1© , 5© and 100© ) , Hard Case, Battery, Manual, Calibration, Constant Certificate