Clamp On Digital Earth Resistance Tester 250ER Brand Constant

Specification of Clamp On Digital Earth Resistance Tester 250ER Brand Constant

Clamp On Digital Earth Resistance Tester 250ER Brand Constant

Features:

• Power measurement of 3-phase 3-wire circuit, 3-phase 4-wire circuit and single phase circuit


• Measure V, A, W, VAR, VA, kWh, Power Factor (Cos j), and Hz


• Double scales analogue bar graph to display voltage fluctuation current &


• Minimum current of Active Energy measurements is 5A, measure an expanding energy per hour of general electrical equipmen

t. Measure and display 5 parameters of power of each phase: Active Power, Apparent Power, Power Factor, Active Power, Reactive Energy, and Total Power value in 3-phase measurement mode respectively

Double lines display 2 parameters on each menu, store 28 groups of measurement parameters

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

I >
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-Resistanc

e

Accuracy



Resistance
0.01 ~ 0.999Ω - 0.001Ω
± (1.5% rdg + 0.01 Ω)


1 ~ 9.99Ω - 0.01Ω
± (1.5% rdg + 0.1 Ω)


10 ~ 99.9Ω - 0.1Ω
± (2.0% rdg + 0.3 Ω)


100 ~ 199.9Ω - 1Ω
± (3.0% of rdg + 1 Ω)


200 ~ 400Ω - 5Ω
± (2.0% rdg + 5 Ω)


400 ~ 600Ω - 10Ω
± (10% rdg + 10 Ω)


600 ~ 1200Ω - 20Ω
± (20% rdg + 20 Ω)



AC Current
100mA-0.1 mA
± (2.5% rdg + 1mA)


300mA-0.3 mA
± (2.5% rdg + 2mA)


1A-0.001 a.
± (2.5% rdg + 0.003 A)


3A-0.003 à
± (2.5% rdg + 0.01 A)


10A-0.01 A
± (2.5% rdg + 0.03 A)


20A-0.03 A
± (2.5% rdg + 0.05 A)



Display
4 digits,9999 counts



Max. Conductor Size
ø32mm or 45 mm x 32 mm



Battery
9V Alkaline



Size/Weight
H276 W104 x x D54mm/approx. 1050g



Standard Accessories