Metrel MI 3123 Earth Resistance Tester (0.00~9999Ω)

EARTH RESISTANCE

Earth Resistance (4-wire method / One clamp method):

(Measuring range/ Resolution/ Accuracy)

0.00 Ω ÷ 19.99 Ω / 0.01 Ω / ±(3 % of reading + 3 digits)

20.0 Ω ÷ 199.9 Ω / 0.1 Ω / ±(3 % of reading + 3 digits)

200 Ω ÷ 1999 Ω / 1 Ω / ± 5 % of reading

2000 Ω ÷ 9999 Ω / 1 Ω / ± 10 % of reading

Earth Resistance (Two clamps method):

(Measuring range/ Resolution/ Accuracy)

0.00 Ω ÷ 19.9 Ω / 0.01 Ω / ±(10 % of reading + 10 digits)

20.0 Ω ÷ 30.0 Ω / 0.1 Ω / ± 20 % of reading

30.1 Ω ÷ 39.9 Ω / 0.1 Ω / ± 30 % of reading

SPECIFIC EARTH RESISTANCE

(Measuring range/ Resolution/ Accuracy)

0.0 Ωm ÷ 99.9 Ωm / 0.1 Ωm/Calculated value, consider earth resistance 4-wire method

100 Ωm ÷ 999 Ωm / 1 Ωm/ Calculated value, consider earth resistance 4-wire method

1.00 kΩm ÷ 9.99 kΩm / 0.01 kΩm/ Calculated value, consider earth resistance 4-wire method

10.0 kΩm ÷ 99.9 kΩm / 0.1 kΩm/ Calculated value, consider earth resistance 4-wire method

100 kΩm / 1 kΩm / Calculated value, consider earth resistance 4-wire method

TRMS CLAMP CURRENT

(Measuring range/ Resolution/ Accuracy)

0.0 mA ÷ 99.9 mA / 0.1 mA / ±(3 % of reading + 3 digits)

100 mA ÷ 999 mA / 1 mA / ±(3 % of reading + 3 digits)

1.00 A ÷ 19.99 A / 0.01 A / ±(3 % of reading + 3 digits)

GENERAL DATA

Power supply voltage: 6 x 1.5 V battery or rechargeable battery, size AA

Operation time: Typical 20 h

Overvoltage category: 50 V CAT IV

Protection classification: Double insulation

Protection degree: IP 40

Display: 128 x 64 dots matrix display with backlight

Memory: 1900 measurements

Connectivity: RS232 and USB

Weight: 0.85 kg (without battery cells)

Dimensions (W x H x D): 14 cm x 8 cm x 23 cm

Datasheet