Selasa, 12 April 2016

SEW 1620 ER Earth Resistance Testers


SEW 1620 ER Earth Resistance Testers

FEATURES
  • 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.

SPECIFICATIONS
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
resolution

 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
 Weight
 (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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