Ecolab LMI03 Mode D'emploi Succinct page 38

Function description
Conductivity measurement and control device
3
Fig. 2: LMI03 control loop
Conductivity measurement and control device LMI03
1
Metering pump
2
Detergent tank
3
The LMI03
1
and detergent tank
2
cleaning solutions using an inductive measuring cell
The LMI03 controller compares the measured conductivity value (actual value) with a
preset value (nominal value). If the actual value is less than the nominal value set for
conductivity, a metering pump starts up in order to increase the concentration of the
solution.
Once the concentration level approaches the preset value, the system switches to 'pulse-
pause mode' until the preset concentration level is ultimately reached. This reliably
prevents the required concentration from being exceeded.
The control process repeats as soon as the actual value drops below the nominal value.
For more information about the options available in AS mode, refer to the
detailed operating instructions (MAN049432).
on page 3
Examples of use
Fig. 3: Examples of use
MAN049701 Ver. 02-03.2024
4
is a measurement and control device that, together with a metering pump
, forms a closed control loop. It measures the conductivity of
3
2
5
Measuring point
4
Measuring cell
5
.
5
Ä
'Available instructions'
12
1