METREL Earth 2/3 User Manual

MI 2126 Earth 2/3 Using instrument
13
Figure 10. Two-wire test method – TT network system method
Warning:
• Make sure that test leads are not connected to the phase line.
R
Earthtot
= R
A
+ R
O
+ R
X
R
x
Earth resistance.
R
A
Resistance of protective conductor.
R
O
Resistance of earthing electrode.
R
Earthtot
Total earth resistance of tested earthing system.
Step 2
Press the ON/OFF key, the following menu will be displayed:
Ω
Figure 11. Earth resistance initial menu

METREL Earth 2/3 Specifications

General

Brand	METREL
Model	Earth 2/3
Category	Test Equipment
Language	English