METREL MI 3125 Short Instructions

MI 3125 / MI 3125E EurotestCOMBO Quick-test guide
22
2.2.6 Line impedance - (phase-neutral, phase-phase)
Zline
 Used for testing between phases on a single or 3 phase system e.g. testing (L to N,
L1 to L2, L2 to L3 etc).
ΔU
 To check that a voltage in the installation stays above acceptable levels if the
highest current is flowing in the circuit.
1
Set function
2
Set subfunction
 Zline
 ΔU
3
Set parameters and limits
 Fuse type (--sets limit OFF, BS88-2, BS3036, BS88-3, BS1362, B, C, D)
 Fuse current rating (3 A ÷ 200 A)
 Fuse tripping time ( 0.4 s, 5 s)
 U
MAX
- maximum voltage drop [3.0 % ÷ 9.0 %].

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)