Owners manual

11
Operation
To determine the VOP of a known length of cable:
1 Connect a known length of cable to the tester. The
cable must be 200 feet (60 meters) or longer (such as an
unopened box of wire).
2 Turn the tester on while holding down the UP or DOWN
button. In this mode, the display alternately shows the
VOP setting (-VV-) and the calculated length (LLLL).
3 When the length setting is displayed, press the UP or
DOWN button. This keeps the length value on the
display for adjustment.
4 Use the UP and DOWN buttons to adjust the length to
the length of the cable.
5 To exit the VOP adjustment mode, turn the tester off.
Notes
While the tester is in VOP adjustment mode, tone is
not injected into the cable.
The VOP value reverts to the default of 66 when you
change the tester’s batteries