4. SELECT PARAMETERS
a.
Press spanner/setting symbol
c.
Set cable impedance
If the impedance is unknown, set to max using
the
arrows. Press
when set.
b.
Set correct velocity factor
(obtained from cable manufacturer) for the cable
to be tested. If unknown, see last page for
examples. Adjust using the UP DOWN arrows.
Press
when set.
d.
Set gain
Set to a level which best shows by toggling
the gain using trace arrows. Press
when set.
Hold
TDR2050
OK
VF = 0.54R Z = 140 = 6 = 40ns 100m
AUTO
MAN
f.
Cable distance
Adjust to a distance greater than the known
cable length.
e.
Set output pulse width
Set at mid point and toggle up / down until fault
becomes clear. Press
when set.
Set at low pulse width for near end faults. Set at high pulse
width for distant faults and concentric cables.
Hold
TDR2050
OK
VF = 0.54R Z = 140 = 6 = 40ns 100m
AUTO
MAN
Hold
TDR2050
OK
VF = 0.54R Z = 140 = 6 = 40ns 100m
AUTO
MAN
Hold
TDR2050
OK
VF = 0.54R Z = 140 = 6 = 40ns 100m
AUTO
MAN
Hold
TDR2050
OK
VF = 0.54R Z = 140 = 6 = 40ns 100m
AUTO
MAN
IMPORTANT:
Ensure you are on manual mode.
AUTO MAN
