METREL MI 3125 User Manual

MI 3125 EurotestCOMBO Socket outlet test
43
5.8 Socket outlet test
The Socket outlet test is an alternative test method for performing Polarity / Correct
connections and PE conductor test on sockets as specified in the AS / NZS 3017.
A sequence of four tests is carried out automatically:
 Resistance between L and N terminal
 Resistance between L and PE terminal
 Resistance between N and PE terminal
 Resistance of PE conductor
The test can be carried out directly from the socket outlet without using the trailing lead.
All three test leads must be connected during the test. Usually the circuit is terminated
with the Resistance box (A 1195) at the switchboard side.
See chapter 4.1 Function selection for instructions on
key functionality.
Figure 5.34: Socket test
Test parameters for socket test
LIMITS Rln, Rlpe,Rnpe Resistances [ No limit, socket Switch ON and Switch OFF]
LIMIT Rpe
Maximum resistance [OFF, 0.1 Ω ÷ 20.0 Ω]
Limits in option Switch ON:
Resistance* R
LN
= 15Ω, R
LPE
= 10Ω, R
NPE
= 5Ω
Limits in option Switch OFF:
Resistance* R
LN
>1999 Ω, R
LPE
>1999 Ω, R
NPE
= 5Ω
Allowed tolerances for PASS are +2.5Ω / -1.5Ω
Connections for Socket test
Figure 5.35: Socket test – connection of plug commander and universal test cable

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)