Fluke CableAnalyzer DSP-4100, User Manual

Page: 53 / 216

Getting Started
Configuring the Test Tool
2
2-33
Noise Test
The test tool periodically checks for excessive electrical noise on the cabling under
test. Noise sources include nearby electrical equipment and transmitters and live
network transmissions on adjacent cables. If excessive noise is detected, the test
tool displays
Noise Detected
and automatically attempts to filter the noise
to meet published accuracy specifications. If the test tool cannot filter out all the
noise, and you save the test results, the test report will include the message
“WARNING Excessive noise detected. Measurement accuracy may be degraded”.
To stop the test and return to the first screen of the selected test mode, press
e
.
Configuring the Test Tool
The following sections provide more details about configuring your test tool. You
can configure the test tool in the SETUP mode, or you can use the LinkWare
software provided to download SETUP selections from a PC to your test tool.
Controlling the Backlight
To toggle the backlight between its two levels of brightness, press
C
on the
keypad. You can set the backlight timer to automatically turn off the backlight
after a specified period of inactivity. You can also disable the backlight timer.
To set the backlight timer or disable the timer, proceed as follows:
1. Turn the rotary switch to SETUP.
2. Press
$ Page Down
.
3. Use
D
to highlight the backlight time-out setting.
4. Press
! Choice
.
5. Use
D U
to highlight the desired time-out period or the disable status.
6. Press
E
to accept the highlighted selection.