METREL MI 3125 User Manual

MI 3125 InstaltestCOMBO Settings
23
Maximum test times related to selected test current for general (non-delayed) RCD
Standard
½×I
ΔN
I
ΔN
2×I
ΔN
5×I
ΔN
EN 61008 / EN 61009 300 ms 300 ms 150 ms 40 ms
EN 60364-4-41 1000 ms 1000 ms 150 ms 40 ms
BS 7671 2000 ms 300 ms 150 ms 40 ms
AS/NZ (I, II, III) 1000 ms 1000 ms 150 ms 40 ms
Maximum test times related to selected test current for selective (time-delayed) RCD
Standard
½×I
ΔN
I
ΔN
2×I
ΔN
5×I
ΔN
EN 61008 / EN 61009 500 ms 500 ms 200 ms 150 ms
EN 60364-4-41 1000 ms 1000 ms 200 ms 150 ms
BS 7671 2000 ms 500 ms 200 ms 150 ms
AS/NZ (IV) 1000 ms 1000 ms 200 ms 150 ms
4.2.4 Isc factor
In this menu the Isc factor for calculation of
short circuit current in Z-LINE and Z-LOOP
measurements can be set.
Figure 4.5: Selection of Isc factor
Keys:
UP / DOWN
Sets Isc value.
TEST
Confirms Isc value.
Function selectors
Exits back to main function menu.
Short circuit current Isc in the supply system is important for selection or verification of
protective circuit breakers (fuses, over-current breaking devices, RCDs).
The default value of Isc factor (ksc) is 1.00. The value should be set according to local
regulative.
Range for adjustment of the Isc factor is 0.20 ÷ 3.00.
4.2.5 Commander support
The support for remote commanders can be
switched On/ Off in this menu.
Figure 4.6: Selection of commander
support

METREL MI 3125 Specifications

General

Type	Multifunction Installation Tester
Insulation Resistance	Yes
Continuity Test	Yes
Loop Impedance	Yes
RCD Testing	Yes
Voltage Measurement	Yes
Frequency Measurement	Yes
Display	LCD
Power Supply	6 x 1.5 V AA batteries
Loop Resistance Resolution	0.01 Ω
Frequency	45 - 65 Hz
Line Voltage Resolution	1 V
Insulation Resistance Test Voltage	50 V, 100 V, 250 V, 500 V, 1000 V
Insulation Resistance Resolution	0.01 MΩ
Continuity Resistance Resolution	0.01 Ω
Test Current	200 mA
DC Voltage	Up to 600 V
Loop Resistance	0.0 Ω - 1999 Ω
Line Voltage	Up to 550 V
Line Voltage Accuracy	±2% ±2 digits
Rated Residual Current	10 mA, 30 mA, 100 mA, 300 mA, 500 mA
Insulation Resistance Range	0.01 MΩ to 1 TΩ
Continuity Resistance	0.0 Ω - 1999 Ω
Dimensions	220 x 103 x 55 mm
Operating Temperature	-10°C to 50°C
Storage Temperature	-20°C to +60°C
Safety Standards	EN 61557
Loop Resistance Accuracy	±(5% + 3 digits)