SITRANS LUT420 SITRANS LUT430 SITRANS LUT440
Category Feature Level Controller Level, pump and
flow controller
High accuracy
OCM controller
Operations
Level, space, and distance
measurement
Open channel flow measure-
ment
Volume conversion
Specifications
Compatible with EchoMax and
ST-H transducers
Standard accuracy: ± 1 mm +
0.17 % of measured distance
High accuracy: ± 1 mm within
3 meters
Mounting options: wall or
panel, pipe, DIN-rail
Data logging and
communications
HART communications
4 ... 20 mA output (active and
passive)
Integrated datalogger for mea-
surement value and alarms
Integrated datalogger for fixed
rate flow logging
Integrated datalogger for vari-
able rate flow logging trig-
gered by changes in flow
condition
Daily data logging for maxi-
mum, minimum and average
flow, daily totalized volume,
and minimum and maximum
temperature
Flow monitoring
High accuracy open channel
flow measurement
9 digit daily and running flow
totalizers
High and low flowrate alarms
External totalizer and sampler
control
MCERTS Class 1 Certification
MCERTS Class 2 Certification
Pump control Energy saving algorithms for
pump control
Wall cling reduction
Pump run-on functionality
Pump start and power
resumption delays
Alternate duty pump routines
Fixed duty and service ratio
pump routines
Pumped volume totalizer
Submergence detection
Discrete input pump interlocks
Time to spill calculation
© Siemens AG 2018
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