SEW ST-1520 Digital Earth Resistance Tester
Summary ST-1520
- Instrument type: digital
- Earth Voltage Test: 0 – 200V
- Earth Resistance Test: 0 – 20Ω, 0 – 200Ω, 0 – 2kΩ
- Measuring Method: 3-wire testing
- Additional Features: data hold mode, auto power off, low battery indication, open circuit indication, over range indication
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
- Auto power off function. The timer operates automatically for about three to five minutes when the “PUSH BUTTON SWITCH” and “TIMER ON BUTTON” are pressed together. This will keep test “ON” for the duration of the timer
- Timer for test function (count 3-5 minutes)
- Battery operated. Data hold function. Small and lightweight
- Calibration performed with supplied test leads
Specifications
| Measuring ranges | Earth resistance 0~40Ω / 0~400Ω / 0~4kΩ |
| Earth voltage 0~400V (40~500Hz) | |
| Accuracy | Earth Resistance ±(2%rdg+3dgt) Earth Voltage ±(2%rdg+3dgt) |
| Earth resistance resolution | 0~40Ω : 0.01Ω 0~400Ω : 0.1Ω 0~4kΩ : 1Ω |
| Measuring system | Earth resistance by constant current inverter 820 Hz, 2mA approx. |
| Dimensions | 163(L) x 102(W) x 50(D)mm |
| Weight (battery included) | Approx. 440g |
| Power source | 1.5V (AA) x 6 |
| Safety standard | EN 61010-1 CAT IV 400V EN 61326-1 EN 61557-1 EN 61557-5 |
Scope of delivery ST-1520
- Digital Earth Resistance Tester ST-1520
- Instruction manual
- Test leads (red-15m, yellow-10m, green-5m)
- Auxiliary earth bars
- Carry case
- Batteries
