2 Instrument description
16
Key inhibit If the printing recorder is fitted with the extra code “logic inputs”, then it is
possible when a selected logic input is closed, in connection with the parame-
ter Configuration level 3
Î Inhibit keys, to inhibit the recorder keys.
The following keys or functions can be inhibited in the basic status:
- e chart fast-forward, when the recording mode is stopped
- S start/stop of recording mode
- F function key, to activate scaling print-out
- h + R change from the basic status to the operating level
Even when the keys are inhibited, certain functions are still possible in the ba-
sic status:
- l + r switch error messages on/off
- h , R channel selection
- E switch between cyclic and static display
Key inhibit has no effect as long as the printing recorder is in the basic status
or in one of the configuration levels. On leaving these levels the keys will be in-
hibited if the logic input is set. It is only possible to call up the operating or
configuration levels again after opening this logic input.
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