KLARO GmbH
24
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
6.1.1. Mode of Operation
The water level is measured by the pressure in the
charging lifter during the charging phase. If the water
level in the sludge storage/buffer (chamber 1)
exceeds a preset fill level ("level measurement
setting "), the system starts a treatment cycle. If the
level is not reached, the system enters into cycle
pause for 6 hours. During the pause, the SBR
reactor is aerated only occasionally in order to keep
the bacteria alive. After 4 consecutive measurements
during which the preset water level in the first
chamber is not reached, the plant will pump water
back from the reactor into the first chamber via the
excess sludge lifter (recirculation). This will create an
artificial supply and the water level rises, which can
cause a cycle start after the following
measurements. The duration of the
recirculation, and thus the delivered volume of
water, can be adjusted in the service menu. As a result, the reactor is given a new supply after a certain
time even in the event of little or no wastewater supply. The regular treatment line can therefore be
maintained over a longer period even in the absence or underload of wastewater.
The number of treatment cycles performed can be queried via the menu item Operating Hours. The
treatment cycles actually carried out are compared with the cycles running in automatic mode (4 per day)
and displayed as a percentage (25% to 100% use of capacity).
6.1.2. Commissioning
Fall Hazard
When working near the open cover of the septic tank, there is a hazard of tripping
and falling!
The open tank must be secured by appropriate measures.
The first chamber (sludge storage/buffer), in which the charging lifter is located, must be filled with water
up to the level at which a treatment cycle is to be triggered. For this purpose, a marking with the
recommended fill level is attached to the charging lifter
airlift
.blue.
1st step: Calibrating the pressure sensor,
The calibration of the sensor is essential for the commissioning of the underload detection. Please go
through the following points carefully in order:
Service Code
Input
Go to the menu item "SERVICE CODE INPUT," press the
key and enter
the following code when prompted: 9 9 9 9
Calibrate?
No
Use the arrow keys (
← →
) to select "CALIBRATE YES" and confirm with the
key and start the calibration...
Figure 11: Charging Lifter
Charging lifter
Minimum
water level
Water level
By activating
treatment cycle
Chamber 2
SBR
Chamber 1
SS+ P
Air hose
red
KLARO GmbH
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
25
Measurement in
progress
3 measurement processes are performed automatically
Enter current
fill
level: 000 cm
Enter the current level b of chamber 1, which you measured with a yardstick
(measured from the tank bottom to the water surface) and confirm with
.
Save?
____ cm No
The measure now specified is the distance
c
from the tank bottom to the inlet
point of the lifter. Use the arrow keys (
← →
) to select "Save Yes" and confirm
with the
key. The calibration is now complete and you can exit this menu
by pressing the "ESC" key.
2nd step: Setting the Control Parameters
Setting the control parameters for the level measurement is essential for proper functioning of the plant.
Please go through the following points carefully in order:
Service Code
Input
Go to the menu item "SERVICE CODE INPUT," press the
key and enter
the general service code when prompted.
Level Measurement
Setting
Use the left arrow (
←
) key to select "Level Measurement Setting" and confirm
with the
key.
Level
Start from: 000 cm
Enter the water level
b
, at which a treatment cycle is to be started. Confirm
with the
key.
Recirculation
2 min
Use the numeric keys to enter the value "2 min" and confirm with the
key. For plants that are very underutilised, we recommend entering a higher
value. The required settings are now complete and you can exit the menu by
pressing "ESC".
Warning Backwater
From: 000 cm
(from Software 8.29)
NOTE:
Enabling the backwater alarm is not mandatory for the correct
functioning of the plant. By saving the value 000 cm, this warning is disabled.
To enable, measure the height between the bottom of the tank and lower edge of the emergency
overflow in the partition or, for full cycle plants, at the drain.
3rd step: Functional check
The level measurement can now be performed in manual mode for testing purposes. To do so, the level
measurement must be switched on with number "1." The controller then automatically performs a
measurement. After the operation, the measured value appears.
6.1.3. Switching Off the Level Measurement
To turn off the level measurement and allow timed cycles to run again, the 2nd steps described above
must be repeated. The water level b must be set to 0 cm. Recirculation can remain set to 2 minutes.
6.1.4. Safety and Fault Messages
If the sensor measures a value below 40 mbar, the following message is displayed: "Malfunction: min.
level.“ In this event, the plant switches to normal timed operation. The reason for this fault is either a
water level that is too low (
≤ 40 cm) in the sludge storage/buffer or a leak in the pressure or measuring
line. We recommend to contact the manufacturer in this case.
KLARO GmbH
2
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•
This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•
All safety instructions must be observed!
•
The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Controller:
Compressor:
Denomination:
Serial No.:
Article No.:
Additional module:
Article No.:
El. Connected load:
KLARO GmbH
2
Original Operating Manual for KLARO Small Wastewater Treatment Plant V.15.07
IMPORTANT:
•
This Operating Manual contains information about the plant, from installation
to maintenance, and must therefore be read before commissioning of the
plant!
•
All safety instructions must be observed!
•
The Operating Manual must be kept readily available during the operation of
the plant!
Plant Specifications
For any questions in the course of the operation of the plant, the specifications of your plant should
be noted as follows. With the help of this information, our staff will be able to help you more quickly
in the event of a malfunction. The specifications can be found on the nameplate, which is located
on the outside of the cabinet door for indoor cabinets, and inside the cabinet for outdoor cabinets.
Small Wastewater Treatment
Plant
PT
Sludge storage
Buffer
SB-Reactor
Approval No.:
Process class:
Certified:
Cabinet:
Controller:
Compressor:
Denomination:
Serial No.:
Article No.:
Additional module:
Article No.:
El. Connected load:
24
