Radiodetection 1205CXB, Руководство по эксплуатации

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1205CXB OPERATION MANUAL v1
11 © Copyright Radiodetection Ltd 2022
19 Time measurement Time for the pulse to reach the
discontinuity
20 Distance measurement Distance along the cable to the
discontinuity
21 dBRL measurements dB of Return Loss at cursor 1 and 2
22 WAVEform submenu Use, with the arrow keys, to Zoom and
Move waveforms
23 CURsor submenu Select cursor 1 or 2. Move cursors with
left and right arrow keys
24 ConFiGuration submenu Change selected parameter with arrow
keys
25 Time Provides time information to stored files
26 Battery status Shows battery charge
Navigating the Config, Cursor and Waveform submenus
Pressing the , or buttons (Button 5, 6 or 7) more than once scrolls the highlighter
around the Config, Cursor or Waveform submenus to select a parameter or function, which you can
then change using the arrow buttons. For details, see the
Menu section.
Launch and reflected pulses
The display of the 1205CXB shows a launch pulse at the left hand side of the display and a reflected
pulse if any cable imperfections are within range (see “Description” section).
When cursor 2 is positioned at the start of the reflected pulse and the VOP is set correctly, the distance
to the imperfection is displayed in the top right hand corner of the display.
Open circuit and high impedance series discontinuities will result in a positive (upward) reflected pulse.
Short circuit and low impedance shunt discontinuities will give a negative (downward) reflection.