Siemens SITRANS LU150 - Adjusting Speed of Response; Fail-safe Modes

Operating
6.8 Adjusting the speed of response
SITRANS LU150
30 Operating Instructions, 03/2016, A5E34590123-AB
6.8
Adjusting the speed of response
To change the speed of response, go to the
'SP'
' 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 speed of response
mode.
The current option is shown
(i.e. 1m/min)
Press “20”
for option 2
(i.e. 5 m/min)
6
seconds
Option 2 has now been selected.
6.9
Fail-safe
In the event a loss of echo or fault condition exceeds the 'Waiting' period (see Speed of
response (Page 29), or Fail-safe timer (Page 31)), the '?' icon appears and one of the following
fail-safe defaults is immediately effected.
SP
default
mA
p
mA
i
reading
1
full
22
4
hold
2 empty 4 22 hold
3*
hold
hold
hold
hold
p = proportional span
i = inversely proportional span
* = factory setting