Sew 1620 ER

● Microprocesser-controlled.
● Measures earth resistance in three ranges : 40Ω, 400Ω, 4kΩ.
● Capable of measuring earth voltage.
● 3 ¾ digit (4000 counts).
● LCD backlight display.
● 2mA measuring current permits the testing of earth
   resistance without tripping earth leakage current
   breakers in the circuit under test.
● Data hold function.
● Relative function.
● Auto power-off function.
● Low battery indication.
● Calibration performed with supplied test leads.
Measuring ranges Earth Resistance
0~40Ω / 0~400Ω / 0~4kΩ
Earth Voltage
0~400V (40~500Hz)
Accuracy Earth Resistance ±(2%rdg+3dgt)
Earth Voltage ±(2%rdg+3dgt)
Earth resistance
0~40Ω : 0.01Ω
0~400Ω : 0.1Ω
0~4kΩ : 1Ω
Measuring system Earth resistance by constant current
inverter 820 Hz, 2mA approx.
Dimensions 163(L) x 102(W) x 50(D)mm
(battery included)
Approx. 440g 
Power source 1.5V (AA) x 6
Safety standards EN 61010-1 CAT IV 400V
EN 61326-1
EN 61557-1
EN 61557-5


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