METREL MI 3125 User Manual

MI 3125 InstaltestCOMBO Function selection
19
4 Instrument operation
4.1 Function selection
For selecting test function the FUNCTION SELECTOR shall be used.
Keys:
FUNCTION
SELECTOR
Select test / measurement function:
 <VOLTAGE TRMS> Voltage and frequency and phase sequence.
 <Zline> Line impedance.
 <Zloop> Fault loop impedance.
 <RCD> RCD testing.
 <R LOWΩ> Resistance of earth connections and bondings.
 <R ISO> Insulation resistance.
 <SOCKET> Fast polarity/ correct connection/ PE conductor test.
 <SETTINGS> General instrument settings.
UP/DOWN
Selects sub-function in selected measurement function.
TAB
Selects the test parameter to be set or modified.
TEST
Runs selected test / measurement function.
Keys in test parameter field:
UP/DOWN
Changes the selected parameter.
TAB
Selects the next measuring parameter.
FUNCTION SELECTOR
Toggles between the main functions.
General rule regarding enabling parameters for evaluation of measurement / test result:
OFF
No limit values, indication: _ _ _.
Parameter
ON
Value(s) – results will be marked as PASS or FAIL in
accordance with selected limit.
See Chapter 5 for more information about the operation of the instrument test functions.

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)