CONSTANT 250ER earth Clamp Tester

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

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