Siemens Sitrans LR250, Руководство по эксплуатации, Страница: 116 / 306

Parameter reference
SITRANS LR250 (PROFIBUS PA)
114
Operating Instructions, 08/2014, A5E32221386-AC
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.
Empty Rate (2.3.8.3)
Defines the maximum rate at which the reported sensor value is allowed to increase. Adjusts the
SITRANS LR250 response to increases in the actual material level. Empty Rate is automatically
updated whenever Response Rate (2.3.8.1.) is altered.
Options Range: 0 to 999999 m / min.
Response Rate (2.3.8.1.)
Empty 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 vessel’s maximum emptying rate, in units per
minute.
Linearization (2.4.)
Volume (2.4.1.)
Carries out a volume conversion from a level value.