30
Menu 9: Number of pump intervals A1/A2
The numbers A1 and A2 determine how many pump intervals A (each with 15min run
time/15s back flushing/4 s break) must be passed in pump cycles T1 and T2.
The number of pump intervals is adjustable from A=0 to A= 60.
The pump cycle starts when the starting time point T1 or T2 is reached.
A
A
A
A
A
T1
Start
T2
Start
A=2
0
1
A1=25
A2=40
Fig.: Illustration of start times and pump cycles
The pump cycle can be interrupted by the float switch "BR min –" (when the water level for the
membrane falls below the minimum allowed level) and "CL max +" (when the clear water tank
is full).
Note/Example: e.g A2 = 0, no filtration cycle in case T2 is reached
Menu 10: Blower times and intervals
The blower run time (Air ON) and blower stop time (Air OFF) can be set within the range of 1 to
15 min. The set blower operation is performed in total aeration mode and interrupted only by
the pump cycle. The aeration always starts with "Air ON" after any adjustments to the time
have been made.
Setting example for various aeration types:
Timed aeration: Air ON/Off = 5 / 10 (5 Minutes aeration, 10 Minutes Pause)
Continuous aeration:
Air ON/OFF = 15 / 0
Deactivated aeration
Air ON/OFF = 0 / 0
Grey water application: Air ON/OFF = 5 / 5
Note: The necessary aeration time depends on the required oxygen content which depends
on the present BOD. We recommend an oxygen content between 3-6mg/l inner the break
period. If the measured oxygen content is higher the aeration time can be reduced to reduce
the power consumption.
Menu 11: Chemical cleaning
See under section "Maintenance and chemical cleaning"
Menu 12: Aeration 24V / Filter back flush 24 V
Two setting options for separate 24 V switching output "AIR" (Section 6.1, Tab, Pos.9)
24 OUTPUT = AIR:
The blower setting (blower runtime (Air ON) and blower pause (Air OFF) ) is transferred from
Menu10 when activated.
24 OUTPUT = Filter:
Setting the duration of filter back flushing (0-120 s) and interval of filter back flushing (0-30
days).
Factory setting: 60 s / 5 d (means: 60 seconds back flushing every 5 days)
