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ST-1520 3 Wire Digital Earth Resistance Tester

ST-1520 3 Wire Digital Earth Resistance Tester

SKU: ST-1520

● 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.
● Indication: Low battery. Data hold. Over range.
● Small and light weight.
● Calibration performed with supplied test leads.

● Earth resistance: 0-20Ω / 0-200Ω / 0-2kΩ.
● Earth resistance Accuracy: ±(2%rdg+2dgt) or ±0.1Ω, which is greater.
● Earth voltage: 0-200 Vac (40-500Hz).
● Earth voltage Accuracy: ±(1%rdg+2dgt).
● Earth resistance resolution: 0-20Ω: 0.01Ω. 0-200Ω: 0.1Ω. 0-2kΩ: 1Ω.
● Testing frequency: 820 Hz.
● Measuring system: Earth Resistance by constant current inverter 820Hz approx. 2mA.
● Open circuit indication: LED will be unlit.
● Display: 3½ digit (2000 counts).
● Dimensions: 163(L) × 100(W) × 50(D)mm.
● Weight (battery included): Approx. 480g.
● Power source: 1.5V (AA) × 6.
● Safety standards: EN 61010-1 CAT III 200V. EN 55022.

Availability: In stock


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