31
Figure 16.
Edit Mode
1 2 3 4 5 6 7 8
Voice Data Video
Voltage!
Rev
Open
Short
ID
Split
Pass
Fail
Tone
X-over
Shielded
1
8
9
10
2. Adjust the Length Constant value for the cable you are testing. In Edit
Mode, the VOICE and VIDEO Mode buttons function as Up and Down
(blue arrows are denoted on the buttons). You can use these buttons
to adjust the length constant over a range of 10 to 40 picofarads per
foot in 0.1pF/ft increments.
Note:
While editing, the display screen toggles back and forth
between the length constant value and the measured cable
length. You can edit the length constant value when the length
constant is displayed. Continuously pressing the UP or DOWN
buttons keeps the length constant on the display screen.
Toggling begins when a few seconds have lapsed after the last
button press.
You can also edit the length constant value while the measured
length is displayed in the screen. This is helpful when you know
the length of the cable. Press the UP/DOWN buttons while
length is displayed in the screen. Continue to adjust the length
constant until the reading matches the known cable length.
The length constant is being updated as the length display is
changing.
3. Select the LENGTH/TONE button again to measure the connected
cable under the parameters of the new length constant.
Note:
If the cable’s capacitance is too large, dashes will display for
the length.
