Ross 4500DR-204-03, Руководство пользователя

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48 • Front Panel Menu System ACO-4500 User Guide (v3.0)
When set to “Yes”, the user is able to perform the calibration procedure to recalculate the calibration values, starting
with the channel number selected above.
To exit from this menu, repeatedly press the [Back] button a sufficient number of times until you reach the “Top
Level” menu screen.
P NSig, B NSig
These menu lines display the stored calibration values for the selected channel number. The “P” menu line indicates
that the line of calibration values is for the Primary channel.
Similarly, the “B” menu line indicates that the line of calibration values is for the Backup channel.
The “NSig=nnnn” sub-field displays the recorded value for the “no signal present and input terminated” condition.
The “Sig=nnnn” sub-field displays the recorded value for the level of the normal amplitude signal.
The “Fail=nnnn” sub-field displays the recorded value for the level of the reduced amplitude signal that will be
used to determine whether the input signal is too low or has failed completely.
Table 7.3 Channel Calibration
Channel
Primary Backup
NSig Sig Fail NSig Sig Fail
1
2
3
4
5
6
7
8
9
10
11
12