AD Instruments AD4120ER Manual De Usuario página 12

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4. Specifications
x Measurement system: Earth resistance by constants current inverter 820 Hz, 2
mA approx.
x Earth voltage: 0~199.9 V AC, 50 / 60 Hz.
x Earth Resistance:
Range and Resolution
0 ~ 19.99 W
0 ~ 199.9 W
0 ~ 1999 W
x Accuracy:
Earth resistance: ± (2% rdg + 2dgt) at 200 / 2000W
± (2% rdg + 0.1W ) at 20W
Earth voltage: ± (1% rdg + 2dgt)
x Safety standard:
IEC-1010 (EN 61010), Installation Category III 300V.
x Low battery indication:
- + Symbol appears on the display.
x Data hold indication:
HOLD Symbol appears on the display.
x Over range indication: "1" (MSD)
x Display:
LCD 3 1/2 digit (2000 counts)
x Power source:
1.5V SUM-3(R6P) x 8 pieces or equivalent.
x Dimensions:
250(L) x 190(W) X 110(D) mm
x Weight:
Approx. 1500g (battery included)
x Accessories:
Test leads (red-15M, yellow-10M, green-5M), auxiliary earth spikes, simplified
measurement probe, instruction manual.
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(0.01 W)
(0.1 W)
(1 W)
Manual de usuario AD4120ER
AD Instruments
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