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8020 ER


● Capable of measuring earth resistance and earth voltage. 
● 2mA measuring current permits the testing of
   earth resistance without tripping earth
   leakage current breakers in the circuit under test.
● Frequency : 820Hz.
● 0Ω adjustment.
● Battery operated.
● Data hold function.
● Low battery indication.
● Calibration performed with supplied test leads.
● Simplified measurement probe is also provided 
   for two-wire measuring method.



 Measuring ranges  Earth resistance 
 0-20Ω / 0-200Ω / 0-2000Ω
 Earth voltage 
 0-200 Vac (40-500Hz)
 Accuracy  Earth resistance  ±(1.5%rdg+2dgt)
 or ±0.1Ω, which is greater
 Earth voltage  ±(1%rdg+2dgt)
 Earth resistance
 0-20Ω : 0.01Ω  
 0-200Ω : 0.1Ω  
 0-2000Ω : 1Ω
 Testing frequency  820 Hz
 Measuring system  Earth resistance by constant
 current inverter 820Hz
 approx 2mA.
 Display  3½ digit (2000 counts)
 0Ω adjustment  V
 Open circuit indication  LED will be unlit
 Low battery indication " symbol appears on the display
 Data hold indication " symbol appears on the display
 Over range Indication “1”(MSD)
 Dimensions  221(L) × 110(W) × 57(D)mm
 (battery included)
 Approx. 600g  
 Power source  1.5V (AA) x 6
 Safety standards IEC/EN 61010-1 CAT IV 200V
EN 61557-1  EN 61557-5
EN 61326-1