Siemens SITRANS LU150, Руководство по эксплуатации

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Operating
6.10 Adjusting the fail-safe setting
SITRANS LU150
Operating Instructions, 03/2016, A5E34590123-AB
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6.10 Adjusting the fail-safe setting
To change the fail-safe setting, go to the 'FLS'' display (as described in Adjustments (Page 25)),
and proceed as follows:
1.
Press the "20" key to scroll forward through the available values (1-2-3), and press the "4"
key to scroll backwards.
2. Once you have reached the appropriate value, stop pressing the key. The display
automatically returns to the Run mode (6 secs).
3
seconds
Indicates that the device is now in fail-safe mode.
The current option is shown
(i.e. full)
Press “20” for option 2
(i.e. empty)
6
seconds
Option 2 has now been selected.
6.11 Fail-safe timer
The fail-safe timer allows the user to vary the ‘waiting’ period from the time a loss of echo or
operating fault condition begins, until the fail-safe default is effected. The ‘waiting’ period is
adjustable from 1 to 15 minutes, in 1 minute increments.
The fail-safe timer value will default to settings determined by the Speed of response (Page 29).
If a different value is desired, the fail-safe timer should be adjusted
after the speed of response
is set.
6.12 Adjusting the fail-safe timer
To change the fail-safe setting, go to the 'FSt'' display (as described in Adjustments (Page 25)),
and proceed as follows:
1.
Press the "20" key to increase the 'waiting' period, and press the "4" key to decrease it.
2. Once you have reached the appropriate value, stop pressing the key. The display
automatically returns to the Run mode (6 secs).