Ma Output - Siemens SITRANS LR250 Instruction Manual
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Also See for SITRANS LR250:
- Operating instructions manual (306 pages) ,
- Quick start manual (272 pages) ,
- Instruction manual (175 pages)
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Output
mA
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).
Sensor
Level
reference
point
High Calibration
Point
Low
Calibration
Point
When SITRANS LR250 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).
If SITRANS LR250 is left in PROGRAM mode for 10 minutes without input, it automatically
reverts to Measurement mode.
Page 110
SITRANS LR250 (HART) – INSTRUCTION MANUAL
Space
20 mA
100%
Level
0%
4 mA
Distance
4 mA
0%
Space
100%
20 mA
4 mA
0%
Distance
100%
20 mA
7ML19985JE01
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Troubleshooting
