Metrel MI 3122 Z Line-Loop / RCD Tester (10 mA~1000 mA)

RCD testing

Nominal residual current (A, AC): 10 mA, 30 mA, 100 mA, 300 mA, 500 mA, 1000 mA

Test current shape: Sine-wave (AC), pulsed (A)

RCD type: G (non-delayed), S (time-delayed)

Test current starting polarity: 0 ° or 180 °

Voltage range: 50 V ÷ 264 V (45 Hz ÷ 65 Hz)

Contact voltage (Measuring range/ Resolution/ Accuracy):

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

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

Trip-out time (Measuring range/ Resolution/ Accuracy): 0 ÷ 300 ms / 1 ms / ±3 ms

Trip-out current (Measuring range/ Resolution/ Accuracy):

0.2xI∆N ÷ 1.1xI∆N (AC type) / 0.05xI∆N /±0.1xI∆N

0.2xI∆N ÷ 1.5xI∆N (A type, IDN ≥30 mA) / 0.05xI∆N / ±0.1xI∆N

0.2xI∆N ÷ 2.2xI∆N (A type, IDN <30 mA) / 0.05xI∆N / ±0.1xI∆N

Fault loop impedance (no disconnecting device or FUSE selected) (Measuring range/ Resolution/ Accuracy):

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

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

100 ÷ 999 Ω / 1 Ω / ± 10 % of reading

1.00 kΩ ÷ 9.99 kΩ / 10 Ω / ± 10 % of reading

Fault loop impedance (RCD selected - no trip out of RCD) (Measuring range/ Resolution/ Accuracy):

0.00 ÷ 9.99 Ω / 0.01 Ω / ±(5 % of reading + 10 digits)

10.0 ÷ 99.9 Ω / 0.1 Ω / ±(5 % of reading + 10 digits)

100 ÷ 999 Ω / 1 Ω / ± 10 % of reading

1.00 kΩ ÷ 9.99 kΩ / 10 Ω / ± 10 % of reading

Line impedance (Measuring range/ Resolution/ Accuracy):

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

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

100 ÷ 999 Ω / 1 Ω / ± 10 % of reading

1.00 kΩ ÷ 9.99 kΩ / 10 Ω / ± 10 % of reading

TRMS voltage monitor, Frequency (Measuring range/ Resolution/ Accuracy)

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

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

Phase rotation: 100 VAC ÷ 550 VAC / Result displayed 1.2.3 or 3.2.1

GENERAL DATA

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

Battery life: Typical 20 h

Overvoltage category: 600 V CAT III, 300 V CAT IV

Protection classification: Double insulation

Degree of protection: IP 40

Memory: 1900 measurements

Connectivity: RS232 and USB

Weight: 0.93 kg (without batteries)

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

Datasheet