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4120 ER 3 Wire Digital Earth Resistance Tester

4120 ER 3 Wire Digital Earth Resistance Tester

SKU: 4120ER

● 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.
● The test leads are supplied as standard accessories for simplified two-wire measuring system.
● Battery operated.
● Data hold function.
● Indication: Battery test. Low battery. Data hold. Over range.
● Calibration performed with supplied test leads.

● Earth resistance: 0-20Ω / 0-200Ω / 0-2kΩ.
● Earth resistance Accuracy: ±(2%rdg+2dgt). ±(2%rdg+0.1Ω) at 20Ω.
● 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.
● Measuring system: Earth Resistance by constant current inverter 820Hz approx. 2mA.
● Open circuit indication: LED will be unlit.
● Display: 3½ digit (2000 counts).
● Dimensions: 250(L) × 190(W) × 110(D)mm
● Weight (battery included): Approx. 1500g.
● Power source: 1.5V (AA) × 6
● Safety standards: IEC/EN 61010-1 CAT III 300V. EN 61557-1 EN 61557-5. EN 61326-1.

Availability: In stock


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