Siemens SITRANS LUT400 Series Operating Instructions Manual page 3

Level Measurement
Continuous level measurement
Ultrasonic controllers
SITRANS LUT400 series
Category
Operations
Specifications
Data logging and
4
communications
Flow monitoring
Pump control
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SITRANS LUT420
Feature Level Controller
Level, space, and distance 9
measurement
Open channel flow measure-
ment
Volume conversion 9
Compatible with EchoMax and 9
ST-H transducers
Standard accuracy: ± 1 mm + 9
0.17 % of measured distance
High accuracy: ± 1 mm within
3 meters
9
Mounting options: wall or
panel, pipe, DIN-rail
HART communications 9
4 ... 20 mA output (active and 9
passive)
9
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
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
Energy saving algorithms for
pump control
Wall cling reduction 9
Pump run-on functionality
Pump start and power
resumption delays
9
Alternate duty pump routines
Fixed duty and service ratio
pump routines
Pumped volume totalizer
9
Submergence detection
Discrete input pump interlocks
Time to spill calculation
© Siemens AG 2018
SITRANS LUT430
Level, pump and
flow controller
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SITRANS LUT440
High accuracy
OCM controller
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