2. Connect the test leads to the cable or wires to be tested.
3. A bright GREEN LED indicates continuity.
4. The LED will not glow if the line resistance exceeds 10 kΩ.
Continuity test using tone
WARNING: To avoid electrical shock, switch off the current to the
device under test and discharge all the capacitors before measuring
the resistance.
1. Set the switch to TONE.
2. Connect the test leads to the cable or wires to be tested.
3. Use a handset or headset at the remote end and touch the wire
end(s) with the clip lead(s).
4. Reception of tone is an indication of continuity.
Identifying lines (using phone plug)
1. Set the switch to TONE.
2. Once the phone jack is connect to the phone wall plug a signal is sent
at the lines (red and black wire connected). This signal can be
detected with the amplifier probe.
COAX testing
1. To test un‐terminated coax, connect red to outer shield and black to
center conductor or red to outer shield and black to ground.
2. To test terminated coax, connect red to connector housing and black
to center pin or red to connector housing and black to ground.
EN 10