GRT300-EU-EN v1.1 08/13
4
Operation
Battery Voltage check
1.
Press the "ON/OFF" button, if "Battery Low" appears on the display, replace the batteries.
Earth Voltage measurement
1.
Connect the test leads as shown below.
MAX.
AC 300V
P
2
C
2
C
1
P
1
H
S
E
ES
1
2
(1) Earth electrode (rod) under test (2) Test spike
2.
Press the "ON/OFF" button and wait for “Select Function” to appear on the display.
3.
Press the "ACV" button and then the "TEST/STOP" button.
4.
The earth voltage will be displayed on the display.
Note: When the earth voltage is more than 10V, errors in earth resistance measurements may
occur. Make sure that the indicated value is less than 10V.
