SEW 1820 ER 三线数字式接地电阻测试仪

Measuring ranges: 0~40Ω / 0~400Ω / 0~4kΩ / ±(2%rdg+2dgt)
0-20Ω : 0.01Ω  
0-200Ω : 0.1Ω  
0-2000Ω : 1Ω
Measuring Earth voltage: 0-200 Vac / ±(1%rdg+2dgt)
Dimensions: 170(L) × 165(W) × 92(D)mm
Weight: 1040g
Power source: 1.5V (AA) × 8  

● 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.
● The leads are supplied as standard accessories for
   simplified two-wire measuring system.
● Battery operated.
● Data hold function.
● Low battery indication.
● Calibration performed with supplied test leads.
 Measuring ranges  Earth resistance 
 0-20Ω / 0-200Ω / 0-2000Ω
 Earth voltage 
 0-200 Vac(40-500Hz)
 Accuracy  Earth resistance  ±(2%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
 Measuring system  Earth Resistance by constant
 current inverter 820Hz approx. 2mA
 Display  3½ digit (2000 counts)
 Open circuit
 LED will be unlit
 Low battery
   “symbol appears  on the display
 Data hold
   “symbol appears on the display
 Over range
 Dimensions  170(L) × 165(W) × 92(D)mm
 (battery included)
 Power source  1.5V (AA) × 8    
 Safety standards  EN 61010-1 CAT II 300V
 IEC 61557-1 IEC 61557-5
 EN 61326-1
  • 质量承诺
  • 正品保修
  • 送货到家
  • 交易简单化