Metrel MI 3125 BT Multifunctional Electrical Installation Tester (50 V ~ 1000 V; 1000 MΩ)

Continuity (Measuring range / Resolution / Accuracy)

Test current 200 mA (polarity change):

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

20.0 Ω … 199.9 Ω / 0.1 Ω / ±(5 % of reading)

200 Ω … 1999 Ω / 1 Ω / ±(5 % of reading)

Test current 7 mA (continuous measurement):

0.0 Ω … 19.9 Ω / 0.1 Ω / ±(5 % of reading + 3 digits)

20 Ω … 1999 Ω / 1 Ω / ±(5 % of reading + 3 digits)

Insulation Resistance (Measuring range / Resolution / Accuracy)

Test Voltage 50, 100, 250 VDC:

0.00 MΩ … 19.99 MΩ / 0.01 MΩ / ±(5 % of reading + 3 digits)

20.0 MΩ … 99.9 MΩ / 0.1 MΩ / ±(10 % of reading)

100.0 MΩ … 199.9 MΩ / 0.1 MΩ / ±(20 % of reading)

Test Voltage 500, 1000 VDC:

0.00 MΩ … 19.99 MΩ / 0.01 MΩ / ±(5 % of reading + 3 digits)

20.0 MΩ … 99.9 MΩ / 0.1 MΩ / ±(5 % of reading)

200 MΩ … 999 MΩ / 1 MΩ / ±(10 % of reading)

RCD Test (Measuring range / Resolution / Accuracy)

Contact voltage UC:

0.0 V … 19.9 V / 0.1 V / (-0 % / +15 %) of reading ±10 digits

20.0 V … 99.9 V / 0.1 V / (-0 % / +15 %) of reading

Trip-out time:

0 ms … 40.0 ms / 0.1 ms / ±1 ms

0 ms … max. time / 0.1 ms / ±3 ms

Trip-out current:

0.2 x IΔN … 2.2 x IΔN (Range dependent) / 0.05 x IΔN / ±0.1 x IΔN

Impedance (Measuring range / Resolution / Accuracy)

Loop & Line Impedance:

0.00 Ω … 9.99 Ω / 0.01 Ω / ±(5 % of reading + 5 digits)

10.0 Ω … 99.9 Ω / 0.1 Ω / ±(5 % of reading + 5 digits)

100 Ω … 999 Ω / 1 Ω / ±(10 % of reading)

1.00 kΩ … 9.99 kΩ / 10 Ω / ±(10 % of reading)

Voltage drop:

0.0 % … 99.9 % / 0.1 % / (Accuracy dependent on line impedance)

Voltage & Frequency (Measuring range / Resolution / Accuracy)

Voltage:

0 V … 550 V / 1 V / ±(2 % of reading + 2 digits)

Frequency:

0.00 Hz … 9.99 Hz / 0.01 Hz / ±(0.2 % of reading + 1 digit)

10.0 Hz … 499.9 Hz / 0.1 Hz / ±(0.2 % of reading + 1 digit)

Earth resistance (Measuring range / Resolution / Accuracy)

0.00 Ω … 19.99 Ω / 0.01 Ω / ±(5 % of reading + 5 digits)

20.0 Ω … 199.9 Ω / 0.1 Ω / ±(5 % of reading + 5 digits)

200 Ω … 9999 Ω / 1 Ω / ±(5 % of reading + 5 digits)

General Data

Power supply: 6 x 1.2 V rechargeable batteries, type AA

Overvoltage category: CAT III / 600 V; CAT IV / 300 V

Protection class: Double insulation

COM port: RS232 and USB

Dimensions: 140 x 80 x 230 mm

Weight: 1.0 kg

Datasheet