User's Manual

Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
101
Rate (2.3.8.)
Note
Default settings in th
e parameter tables are indicated with an asterisk (*) unless explicitly
stated.
Response Rate (2.3.8.1.)
Note
Changing Response Rate resets Fill Rate (2.3.8.2)
,
Empty rate (2.3.8.3)
, and
Filter Time
Constant (2.6.8.1.)
.
Sets the reaction speed of the device to measurement changes.
Response Rate (2.3.8.1.)
Fill Rate (2.3.8.2.)
Empty rate (2.3.8.3.)
Filter Time Constant
(2.6.8.1.)
*
Slow
0.1 m/min (0.32 ft/min)
10 s
Medium
1.0 m/min (3.28 ft/min)
10 s
Fast
10.0 m/min (32.8 ft/min)
0 s
Use a setting just faster than the maximum filling or emptying rate (whichever is faster).
Fill Rate (2.3.8.2.)
Defines the maximum rate at which the reported sensor value is allowed to decrease. Allows you
to adjust the SITRANS LR250 response to decreases in the actual material level. Fill Rate is
automatically updated whenever
Response rate (2.3.8.1.)
is altered.
Options
Range: 0 to 99999 m / min.
Response rate (2.3.8.1.)
Fill rate
*
Slow
0.1 m/min (0.32 ft/min)
Medium
1.0 m/min (3.28 ft/min)
Fast
10.0 m/min (32.8 ft/min)
Altered by:
Response rate (2.3.8.1.)
Related parameters
Level unit (2.3.2.)
Enter a value slightly greater than the maximum vessel-filling rate, in units per minute.