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SEW 2705ER 三 线式指针接地电阻计

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Model2705ER
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Measuring ranges  Earth resistance  
 0-10Ω / 0-100Ω / 0-1000Ω
 Earth voltage  
 0-30 Vac (40-500Hz)
 Accuracy  Earth resistance  ±3% of full scale
 Earth voltage  ±2.5% of full scale
 Measuring system  Earth resistance by constant 
 current inverter 820 Hz, 2mA approx
 Open circuit 
 indication  LED will be unlit
 Dimensions  205(L) × 90(W) × 55(D)mm
 Weight
 (battery included)  Approx. 514g
 Power source  1.5V (AA) × 6 
 Safety standards  EN 61010-1 CAT III 30V
 EN 61326-1
Instruction manual Test leads (red-15m, yellow-10m, green-5m) Auxiliary earth spikes Simplified measurement probe,Carry case Batteries
 

  

 

 FEATURES
● High quality Taut Band movement.
● 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.
● Test leads are supplied as standard accessories
    for simplified two-wire measuring system.
● Battery operated.
● Battery check function. 
● Calibration performed with supplied test leads.
 
  SPECIFICATIONS
     
 
 Measuring ranges  Earth resistance  
 0-10Ω / 0-100Ω / 0-1000Ω
 Earth voltage  
 0-30 Vac (40-500Hz)
 Accuracy  Earth resistance  ±3% of full scale
 Earth voltage  ±2.5% of full scale
 Measuring system  Earth resistance by constant 
 current inverter 820 Hz, 2mA approx
 Open circuit 
 indication
 LED will be unlit
 Dimensions  205(L) × 90(W) × 55(D)mm
 Weight
 (battery included)
 Approx. 514g
 Power source  1.5V (AA) × 6 
 Safety standards  EN 61010-1 CAT III 30V
 EN 61326-1
   
 
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