Emec LOTUS MINI, Operation Manual

Page: 13 / 72

13
5.1 Proportional mode
In the proportional mode LOTUS produces an adjustable capacity of chlorine dioxide proportional to a water
flow recorded by a water meter.
Prod. Capacity: Here you can adjust the requested chlorine dioxide concentration.
Warning:
•
The controller takes the inserted value in “Prod. Capacity” for the calculation of the required stroke
frequency of the dosing pumps for the production of chlorine dioxide proportional to the flow. This
means that it is a theoretically value and not the real concentration in the water!
•
The operator is responsible by its own for the proper adjustment of this control-value!
•
The operator has to countercheck the chlorine dioxide concentration in the connected water system
with a suitable photometer to verify the real concentration and to readjust the
“Prod. Capacity” until
the required concentration is stable achieved.
General Notices:
Theoretically it is possible to adjust the production capacity up to 9.99 mg/l.
But for very low water flows, resp. water consumption it can be dangerous to do this and
should be absolutely avoided!
In case the water flow exceeds the maximum production capacity a proportional production is not
longer possible. In the following table you can find the maximum water flow corresponding to the
maximum production capacity:
LOTUS 8 20
Production capacity
[mg/l]
Water flow
[m ³ /h]
0,10 80 200
0,20 40 100
0,30 26.6 66.6
0,40 20 50
0,50 16 40
0,60 13.3 33.3
0,70 11.4 28.5
0,80 10 25
0,90 8.8 22.2
1,00 8 20
The overriding of the maximum possible production capacity caused by the water flow is shown on the display
with a special blinking message
“Overflow” :
As soon as the water flow drops down under the maximum acceptable value, the message disappears.
Proportional Mode
Prod. Capacity: 0.15 mg/l Mode:
Proportional
ESC
02-12-10 EMEC 09:10:55
LOTUS
25.9° C
Chlorine Dioxide Generator
Overflow
Status Menu Logbook Help