SEW 4236 ER 4 Wire Earth Resistance Tester Features
● Microprocessor-controlled.
● Earth resistivity (ρ) test.
● Earth testing at 20Ω, 200Ω, 2kΩ.
● Earth voltage measurement : 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.
● Optical USB to RS-232 data transmission.
● The stored data can be transferred to a PC.
● 2 optical LEDs are built-in for data transfer.
SEW 4236 ER 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: 0-20Ω: ±(2%rdg+0.1Ω) 0-200Ω,0-2kΩ: ±(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. 1500g |
| Power source | 1.5V (AA) × 8 |
| Safety standards | EN 61010-1 CAT IV 300V IEC 61557-1 IEC 61557-5 EN 61326-1 |
