Selasa, 12 April 2016

SEW 1805 ER Earth Resistance Testers


SEW 1805ER Earth Resistance Testers

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 820Hz, 2mA approx.
 Open circuit 
 indication

 LED will be unlit
 Dimensions
 170(L) × 165(W) × 92(D)mm
 Weight
 (battery included)

 Approx. 1000g
 Power source
 1.5V (AA) × 8 
 Safety standards
 EN 61010-1 CAT III 150V
 EN 61326-1

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