SEW 4235 ER Digital Earth Resistance Tester
Summary 4235 ER
- Instrument type: digital
- Earth Voltage Test: 0 – 300V
- Earth Resistance Test: 0 – 20Ω, 0 – 200Ω, 0 – 2kΩ
- Measuring Method: 4-wire testing
- Additional Functions: earth resistivity (ρ), C spike check, P spike check
- Additional Features: data hold mode, auto power off, low battery indication, open circuit indication, over range indication
Features
- 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 function. 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) x 8 |
| Safety standard | EN 61010-1 CAT IV 300V IEC 61557-1 IEC 61557-5 EN 61326-1 |
Scope of delivery 4235 ER
- Digital Earth Resistance Tester 4235 ER
- Instruction manual
- Test leads (red-15m, black-10m, yellow-10m, green-5m)
- Auxiliary earth spikes
- Carry case
- Shoulder belt
- Batteries
