26
TS90 Cable Fault Finder
Users Guide
Q:
I accidentally cracked the plastic housing, does this affect
the moisture protection of the components?
A:
Not at all. The component protection is provided by a
coating on the components and Printed Circuit Board (PCB).
However, if sufficient plastic is missing then a possible shock
hazard exists. You should not use the tester until the plastic is
repaired or replaced.
Q:
Can this tester measure the length of single conductor
wires like THHN?
A:
No. All TS90 measurements must be made on TWO
conductors from the SAME END of a cable.
Q:
If I touch the bare metal of the wires or clip leads, will the
measurement be affected?
A:
After BOTH clips are connected, measurement results will
ordinarily not be affected if inappropriate human contact is
made with the input connectors. Under moist conditions, if a
large surface area of cable is in contact with moist skin, some
readings may be affected.
Q:
On multi-conductor cables with a short between two of
the conductors, I sometimes read an “open” at twice the
known length of the cable.
A:
If the cable has more than two conductors, and a short
exists at the far end between one of the conductors you are
connected to and a conductor you are not connected to, the
displayed length will be the SUM of the lengths of the
conductors joined by the short. The tester can only correctly
test the two conductors you are connected to. See
“Applications” on page 12 for multi-conductor cables.
