METREL MI 3125 User Manual

MI 3125 InstaltestCOMBO Warnings and notes
7
Warnings related to measurement functions:
Insulation resistance
 Insulation resistance measurement should only be performed on de-energized
objects!
 Do not touch the test object during the measurement or before it is fully
discharged! Risk of electric shock!
 When an insulation resistance measurement has been performed on a capacitive
object, automatic discharge may not be done immediately! The warning message
and the actual voltage is displayed during discharge until voltage drops below
10 V.
 Do not connect test terminals to external voltage higher than 600 V (AC or DC) in
order not to damage the test instrument!
Continuity functions
 Continuity measurements should only be performed on de-energized objects!
 Parallel impedances or transient currents may influence test results.
Testing PE terminal
 If phase voltage is detected on the tested PE terminal, stop all measurements
immediately and ensure the cause of the fault is eliminated before proceeding
with any activity!
SOCKET test
 Use Resistance box (A 1195) only for testing with lines disconnected from main
supply!
Notes related to measurement functions:
General
 The indicator means that the selected measurement cannot be performed
because of irregular conditions on input terminals.
 Insulation resistance, continuity functions can only be performed on de-energized
objects.
 PASS / FAIL indication is enabled when limit is set. Apply appropriate limit value
for evaluation of measurement results.
 In the case that only two of the three wires are connected to the electrical
installation under test, only voltage indication between these two wires is valid.
Insulation resistance
 If voltages of higher than 10 V (AC or DC) is detected between test terminals, the
insulation resistance measurement will not be performed. If voltages of higher
than 10 V (AC or DC) is detected between test terminals, the insulation
resistance measurement will not be performed.
 The instrument automatically discharge tested object after finished
measurement.
 A double click of TEST key starts a continuous measurement.

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)