3
In high-sensitivity mode, the tester will be more sensitive and show voltage
indication at a further distance away from high voltage source than in
low-sensitivity mode.
Identify null and live wire
Keep the individual cables as far away from each other as possible and read
the signals.
The screen turns red and shows a high voltage symbol when the voltage is
higher than 90V. The neutral wire and live wire should not be distinguished
by the screen color, but by the detected signal intensity. The live wire causes
stronger signals and the neutral causes weaker signals.
It is recommended to activate the high sensitivity mode during identification.
Breakpoint testing
Activate the high sensitivity mode, move the tester's NCV tip
along the cable, the voltage alarm disappears when detected a
breakpoint, as shown in Figure 2.
Caution: Do not use it on cable ducts or metal-clad cables.
Live wire: Up to 8 bar charts
Fast beeps
Red screen
Null wire: Below 6 bar graphs
Slow beeps
Green screen
