Operation
Section 1
Page 43
15K–1200 ohms
Limits of Opens Functions:
Normal Mode and Special Mode
Dirty Opens:
Total Cable
Distance, if
Loaded:
Normal Special
>15K ohmsPartial Opens:
>15K ohms 15K–1200 ohms
100,000 ft
or
30480 m
3000 ft/914 m
(
from CO)
Load Coils
1
: Reads
through
Reads to within
10% of the first
6000 ft/1829 m
(between loads)
10,000 ft
or
3048 m
Total Cable
Distance,
Non-loaded:
100,000 ft
or
30480 m
1
Early software versions of the 900/900M Series test sets are
not equipped to count load coils. To determine if your set is
equipped to do load coil counts, press the OPENS key. If the
set is so equipped, the menu includes a “load coil count”
option.
Note: In order to successfully locate an OPEN, partial OPEN,
or dirty OPEN, the test set operator must have a good
knowledge of the cable plant (splice points, load coil locations,
access points, etc.). This will help in section analysis (see page
61). Voltage, Capacitance and Resistance measurements along
with isolation techniques, are a must for cable fault location.
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