Siemens LU01 Manuel D’Utilisation

7ML19985BE02

SITRANS LU01 – INSTRUCTION MANUAL

Page 23

In RUN mode, the SITRANS LU01 detects material levels and provides control functions. 
The SITRANS LU01 automatically starts in RUN mode when power is applied.

In the RUN mode, the following values and indicators are observed. Many indicators are 
specific to certain operating conditions and so not all indicators are not displayed at any 
given time. 

Transducer

the current display linked to transducer measurement. 

Reading

displays the level, space, or distance (flashes error messages, if any). 

Percent

the Reading is in percent. 

High Alarm

indicates level has risen above 80% (and not yet fallen below 75%). 

Low Alarm

indicates level has fallen below 20% (and not yet risen above 25%). 

Filling Indicator

indicates the vessel is filling. 

Emptying Indicator

indicates the vessel is emptying.

Bar Graph

indicates the 

absolute

 (always a positive value) material level from 0 to 

100%. 

Data Out

indicates the SITRANS LU01 is transmitting data to the Peripheral Com-
munications terminals. 

Scanning Indicator

indicates point number scanned

Auxiliary Reading

as selected by the keypad (terminal numbers if transducer or TS-3 is 
wired wrong). 

Relay Number

indicates the relays programmed for operation. 

Relay Status

indicates the relay is de-energized (alarm is activated). 

Normal Operation

indicates operating conditions are good and the Reading is reliable. 

Failsafe Operation

indicates operating conditions are poor and the Reading may be incor-
rect. 

low alarm 

indicator

data out

indicator

scanning 

indicator

auxiliary

reading

number

status

failsafe

operation

normal 

operation

transducer

reading

units

high alarm 

indicator

filling/

emptying

indicator

bar graph