Siemens SITRANS L 사용 설명서 - 페이지 29
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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 23)), 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).
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 27). 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 23)), 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).
SITRANS LU180
Operating Instructions, 09/2021, A5E37100674-AB
3
Indicates that the device is now in fail-safe mode.
seconds
The current option is shown
(i.e. full)
Press "20" for option 2
(i.e. empty)
6
Option 2 has now been selected.
seconds
6.10 Adjusting the fail-safe setting
Operating
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