SEW 1620 ER 三线数字式接地电阻测试仪 (4kΩ)

Measuring ranges: 0~40Ω / 0~400Ω / 0~4kΩ / ±(2%rdg+3dgt)
0~40Ω : 0.01Ω
0~400Ω : 0.1Ω
0~4kΩ : 1Ω
Measuring Earth voltage: 0~400V /±(2%rdg+3dgt)
Dimensions: 163(L) x 102(W) x 50(D)mm
Weight: 440g
Power source: 1.5V (AA) × 8   



● Microprocesser-controlled.
● Measures earth resistance in three ranges : 40Ω, 400Ω, 4kΩ.
● Capable of measuring earth voltage.
● 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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