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Sew 2720 ER

Category: 3 Wire (Digital) Earth Resistance Testers
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)
or ±0.1Ω, which is greater
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 205(L) × 90(W) × 55(D)mm
Weight
(battery included)		 Approx. 550g
Power source 1.5V (AA) × 6   
Safety standards EN 61010-1 CAT III 200V
IEC 61557-1 IEC 61557-5
EN 61326-1

Location

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