Operation
Section 1
Page 41
Opens
RED to RING
BLACK to TIP
GREEN to GROUNDED SHIELD
Hookup:
R
B
G
Turn unit on.
On
Reset
Opens
Both Normal and Special
modes operate the same.
For this example, select
Normal mode.
Normal, Special,
Split Locate, Load
Coil Count
1
Move
✽
to select test
type– Normal
Display shows last
opens set-up
Cable type menu
Select cable type,
calibrate to cable, or
measure capacitance
Length measurement.
Disregard this step
if the unit is on.
End
of
Test
Press the
✽
(star key) to
switch the display between
tip, ring and mutual
measurements. Mutual is
not used for locating opens.
You can measure the cable
capacitance, or measure to
the open using one of five
standard cable profiles, or
calibrate to cable. Use the
AUTO CAL key to set up
CUSTOM CABLE (see Sec.
1). For this example, select
aircore cable.
OR
OR
Note: An “overrange” message on the display means the pair is
longer than the unit can measure, or the resistance fault is too
heavy. Try the special mode to locate the open, or use the OHMS
key to verify.
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. See Section 2 of this
manual “Special Applications” for more information on load coils,
and an example of the load coil count procedure.
Opens Example: Calibrate to Cable
The unit is calibrated for cables of standard capacitance.
For greatest measurement accuracy, use the “calibrate to
cable” option.
