Banner DF-G1-PR-Q7 Provozní pokyny Strana 97

  • Stažení
  • Přidat do mých příruček
  • Tisk
  • Strana
    / 253
  • Tabulka s obsahem
  • KNIHY
  • Hodnocené. / 5. Na základě hodnocení zákazníků
Zobrazit stránku 96
350 Cable Survey System
DPN 402197 © TSS (International) Ltd Page 18 of 32
6.2.1.5 Configuration Options
Standard parameters
This option should be selected to configure the system parameters information.
Figure 6–9: System Configuration
6.2.2 Survey Parameters
This dialog contains the main parameter which the 350 SEP requires to track the tone
and find the position of the cable. To carry out an accurate survey, these parameters
must be entered correctly.
Tone Frequency
Set the tone frequency to the same frequency as the one on the cable. Enter the fre-
quency of the tone in units of Hz. The system accepts values from zero to 200Hz.
Note that the rejection capabilities of the system allow you to set the tone frequency
accurately. An error of ±1Hz or more in setting the frequency could cause the system
to reject the tone.
You may improve the performance of the System in the presence of background
noise by using the Spectrum Analyser (Section 6.2.1.4) display to select a suitable
tone frequency.
Signal Threshold
Threshold is an absolute value in microvolts. The 350 system considers targets to be
out of range if signals from them are below the threshold setting.
You should determine the correct setting for the threshold empirically, considering the
level of noise present in the survey environment. Low values for threshold will yield an
improvement in the operating range, but will make the System more susceptible to
noise.
Zobrazit stránku 96
1 2 ... 92 93 94 95 96 97 98 99 100 101 102 ... 252 253

Komentáře k této Příručce

Žádné komentáře