8-8 Option 100 Fault Location and SRL
Key Reference
Alphabetical Key Reference
Softkey in fault cal menu. This function lets you measure a known
length of cable and automatically figures cable loss and velocity
factors.
An alternative to entering the velocity factor and cable loss of your
cable is to use the algorithm built into the analyzer to determine
these values automatically. To use this function, you need a known
length of cable of the same type being measured. The cable should be
at least 30 feet (or 10 meters) long.
When this softkey is pressed, you will be prompted to enter the
length of your cable (with the softkey) and then to
connect it, leaving the free end an open circuit. When the
softkey is pressed, the analyzer will determine
values for velocity factor and cable loss based on the known distance
down the line where the open circuit appears.
NOTE Cable loss is nonlinear with frequency.
Therefore, the apparent loss per 100 feet will
change as the frequency range is changed.
Velocity factor is also somewhat frequency
dependent. You may wish to re-examine these
values as the frequency limits are changed.
Access Keys:
or
(You must already be in fault location
measurement mode to access the
softkey via the key.)
BEGIN
CAL
CAL
CAL
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