17
Parts Names and Functions
1
Start/stop for measuring earth resistance
2
•
Displays the resistance of each earthing electrode.
•
Display switching (three-pole method, two-pole method)
•
DC/AC switching (when measuring earth potential)
3
•
Function switching (three-pole method, two-pole method)
•
Unlocks the retained value and displays the current earth
potential value.
4
Power ON/OFF
5
Live wire warning LED
•
For three-pole method
Blinks under any of the following conditions:
•
A voltage of 30 V or higher is applied between the S(P)
and E terminals.
• A voltage of 85 V or higher is applied between the H(C)
and E terminals.
• A voltage of 85 V or higher is applied between the H(C)
and S(P) terminals.
•
For two-pole method
Blinks when a voltage of 30 V or higher is applied
between the H(C) and E terminals.
•
Lights up during earth resistance measurements.
6
Sets/cancels comparator setting (
COMP
lights up/goes off).
7
Sets/cancels zero adjustment setting. (p. 35, p. 46)
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