Ma Output; Damping - Siemens SITRANS LR260 Operating Instructions Manual

Appendix A: Technical reference
A.7 Damping
A.6

mA Output

The mA output is proportional to the level, in the range 4 to 20 mA. Generally, the output is set
so that the output for 0% is 4 mA, and the output for 100% is 20 mA. 0 and 100% are
percentages of the full-scale reading (m, cm, mm, ft, in).
①
②
③
④
⑤
⑥
⑦
⑧
When SITRANS LR260 is put into PROGRAM mode it stops responding to the process. It
stores the most recent measurement, and holds the associated readings and mA signal output.
The instrument reverts to the parameter last addressed during the previous program session.
When the instrument is returned to Measurement mode, the transceiver resumes operation.
The reading and mA output default to the last measurement taken. The reading and associated
outputs migrate to the current process level at a rate controlled by the response rate (2.2.7.1).
(Page 89)
If SITRANS LR260 is left in PROGRAM mode for 10 minutes without input, it automatically
reverts to Measurement mode.
A.7

Damping

A damping filter smooths out the response to a sudden change in level. This is an exponential
filter and the engineering unit is always in seconds. The setting can be modified in Damping
Filter 2.2.4.3.2.. (Page 85)
156
Low Calibration Point
High Calibration Point
Sensor reference point
Level
20 mA 100%
Space
4 mA 0%
Distance
⑨
4 mA 0%
⑩
Distance
⑪
100% 20 mA
⑫
100% 20 mA
⑬
Space
⑭
0% 4 mA
⑮
Level
Operating Instructions, 11/2019, A5E32337683-AD
SITRANS LR260 with mA/HART