ST-1520
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 light weight.
- 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 | “ B “symbol appears on the display |
| Data hold indication | “ DH “symbol appears on the display |
| Over range indication | “1”(MSD) |
| Dimensions | 163(L) × 100(W) × 50(D)mm |
| Weight (battery included) | Approx. 480g |
| Power source | 1.5V (AA) × 6 |
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