SEW-Taiwan

Sew 4120 ER

FEATURES
● 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.
● Battery test indication.
● Calibration performed with supplied test leads.
 
  SPECIFICATIONS
     
 
Measuring ranges Earth resistance
0-20Ω / 0-200Ω / 0-2000Ω
Earth voltage
0-200 Vac(40-500Hz)
Accuracy Earth resistance
±(2%rdg+2dgt) at 200/2000Ω
±(2%rdg+0.1Ω) at 20Ω
Earth voltage ±(1%rdg+2dgt)
Earth resistance
resolution
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
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 250(L) × 190(W) × 110(D)mm
Weight
(battery included)
Approx. 1500g
Power source 1.5V (AA) × 8 
Safety standards EN 61010-1 CAT III 300V
IEC 61557-1 IEC 61557-5
EN 61326-1

Location

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