4235-er

SEW-Taiwan

Sew 4235 ER

Category: 4 Wire Earth Resistance & Resistivity Testers
● Microprocessor-controlled.
● Earth resistivity (ρ) test.
● Earth testing at 20Ω, 200Ω, 2kΩ.
● Earth voltage measuring : 0-300V AC.
● Automatic C spike check.
● Automatic P spike check.
● 2-Wire test, 3-Wire test, 4-Wire test.
● LCM display.
● Auto ranging.
● Auto power OFF.
● Data hold.
● 200 measurement results can be saved in the memory
   and recalled on the display.
● Interval between auxiliary earth spikes is 1.0~50.0m.
 
  SPECIFICATIONS
     
 
Measuring ranges Earth Resistance
0-20Ω / 0-200Ω / 0-2kΩ
 Earth Voltage
0-300.0V AC
Earth Resistivity (ρ=2 × π × L × R)
0.06~6.28kΩ.m
0.62~62.8kΩ.m
6.28~628kΩ.m
Accuracy Earth Resistance ±2%rdg ± 3dgt
Earth Voltage ±2%rdg ± 3dgt
Earth resistance
resolution		 0-20Ω : 0.01Ω
0-200Ω : 0.1Ω
0-2kΩ : 1Ω
Measuring system Earth resistance by constant current
Inverter 820Hz approx. 2mA
Temperature
& humidity		 Operating: 0°C~40°C ≤80% R.H.
Storage: -10°C~50°C ≤80% R.H.
Dimensions 250(L) x 190(W) x 110(D)mm
Weight
(battery included)		 Approx. 1430g
Power source 1.5V (AA) × 8
Safety standards EN 61010-1 CAT IV 300V
IEC 61557-1 IEC 61557-5
EN 61326-1

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