Klaro S50 User manual

Operating manual
We provide clear water
No mechanical parts in
the wastewater
No pumps in
the wastewater
No electrical parts
in the wasteater
for KLARO UV-Modules
GERMAN
DESIGN AND
ENGINEERING
303-EN-0822
Only in connection with
KLARO control.M

Original manual
Version: 1.00
Date 11.2022
KLARO GmbH
Spitzwegstraße 63
D-95447 Bayreuth
Tel.: +49 (0) 921 / 16279-0
Fax: +49 (0) 921 / 16279-100
E-Mail: info(at)klaro.eu
www.klaro.eu

Betriebs- und Montageanleitung
KLARO blue.cycle
1 / 29
Stand: 09.2022
Änderungen vorbehalten
About this manual..........................................................................................................2
Safety..............................................................................................................................3
2.1 Intended Use...................................................................................................................3
2.2 Safety marking................................................................................................................3
2.3 Responsibility of the operator......................................................................................4
2.4 Personnel qualification ..................................................................................................4
2.5 General security measures...........................................................................................5
Overview KLARO UV-Modules.....................................................................................6
Comissioning and operation .........................................................................................9
4.1 Preparations....................................................................................................................9
4.2 Installation electronic ballast...................................................................................... 10
4.3 Electrical connection.................................................................................................... 12
Electronik ballast .................................................................................................. 12
Connection with power supply........................................................................... 14
Connection with control.M .................................................................................. 14
4.4 Commissioning ............................................................................................................. 15
4.5 Operation....................................................................................................................... 16
Maintenance.................................................................................................................17
Troubleshooting ...........................................................................................................19
Disposal.........................................................................................................................21
Technical data............................................................................................................. 22
Appendix...................................................................................................................... 23
9.1 Circuit diagram ............................................................................................................ 23
9.2 Plug Wieland ................................................................................................................ 26

Betriebs- und Montageanleitung
KLARO blue. cycle
2 / 29
Stand: 09.2022
Änderungen vorbehalten
Thank you for choosing a KLARO product!
These operating instructions are part of the technical documentation for the small
sewage treatment plant. It is part of the product and must be passed on if the owner or
location changes. These instructions contain important information on safety,
technical data, structure and functional principle, installation and initial start-up,
maintenance and faults.
Read the operating instructions carefully before use. It is an important prerequisite for
the correct use of the KLARO UV modules.
All persons who come into direct contact with the system must have read and
understood the content of this documentation. We recommend keeping this part close
to the small sewage treatment plant.
We hope you enjoy your new KLARO product.
Your KLARO GmbH
The instructions for use contain information and illustrations that are protected by
copyright. All rights reserved by KLARO GmbH. The duplication, reproduction, further
use or translation of these operating instructions into other languages, in whole or in
part, requires the express written approval of KLARO GmbH.

Betriebs- und Montageanleitung
KLARO blue. cycle
3 / 29
Stand: 09.2022
Änderungen vorbehalten
Despite all safety precautions, certain residual risks can never be completely ruled out,
especially in the event of incorrect or careless handling of the products. You should
therefore read and follow the safety information and instructions in this manual and in
the other parts of the user manual in order to protect yourself and others from hazards
and to avoid damage to property or the environment through improper handling.
Products for the disinfection of biologically treated waste water, water reuse possible
if necessary.
The products may only be used for the purposes described in this manual.
dürfen nur für die in dieser Anleitung beschriebenen Zwecke verwendet werden.
The following safety symbols and signal words are used in these operating instructions
and on the system components:

Betriebs- und Montageanleitung
KLARO blue. cycle
4 / 29
Stand: 09.2022
Änderungen vorbehalten
Interesting information
The operator is responsible for the proper installation and operation of the products.
He is also responsible for ensuring that, in addition to the safety instructions and
instructions in this manual, the legal regulations, standards, ordinances and
regulations applicable to the area of application of the system are observed. This
includes in particular the relevant safety, accident prevention and environmental
protection regulations as well as the specifications for inspection and maintenance
applicable at the place of use.
Operation in accordance with the operation and maintenance instructions in this
manual is mandatory to comply with government cleaning requirements.
To ensure the operational safety of the system, the operator must:
• Have the prescribed regular maintenance work carried out by a specialist
• If the control or electrical lines are damaged, shut down the system
immediately and disconnect it from the power supply.
• Eliminate operating errors or damage immediately or arrange for repairs to be
carried out by a specialist
• All safety markings on the system must always be kept in a legible condition.
The operator must ensure that the personnel for installation, assembly, inspection and
maintenance have the necessary qualifications or expertise for this work and that
people who handle the product have been sufficiently instructed. In addition, there
may be legal regulations regarding the required qualifications.
The products must not be operated under the influence of alcohol, drugs or
medication that impair the ability to perceive and react.
Servicing and maintenance work on the system may only be carried out by competent
persons. Experts are people who have the necessary qualifications for the operation
and maintenance of small sewage treatment plants due to their professional training
and participation in relevant qualification measures. Work on the electrical system and
the connection to the power supply may only be carried out by qualified electricians.

Betriebs- und Montageanleitung
KLARO blue. cycle
5 / 29
Stand: 09.2022
Änderungen vorbehalten
▪
Keep bystanders - especially children - away from open tank covers.
Lock the tank covers so that a child cannot open them.
Before closing, make sure that there are no people or animals in the container.
▪
Components are built into the control cabinet, the surface of which can be hot.
Touching it can cause burn injuries.
Unauthorized access to the controller can cause serious operational
disruptions.
Only open the control cabinet for operation and maintenance of the system.
After completing the work, lock the cabinet.
▪
¨ If the housing of the control is damaged or if the insulation is electrical
¨ If the lines are damaged or crushed, there is a risk of electric shock.
In the event of damage, immediately shut down the system, disconnect it from
the power supply and have it repaired by a specialist company.
▪
Spilling or leaking liquid can cause a short circuit. A fire or an electric shock
can result.
▪

Betriebs- und Montageanleitung
KLARO blue. cycle
6 / 29
Stand: 09.2022
Änderungen vorbehalten
The KLARO UV-modules product group includes systems for the additional tertiary
treatment of biologically treated wastewater.
System
Purpose
Integrated without
pump
•Insode the treatment plant
•Up to 8 PE (Airlift DN40)
Downstream with
pump
•In the downstream tank
•Time controlled by control.M
External
downstream with
pump
•In the downstream tank
•Level controlled by float switch
•control independent
The KLARO UV module is used to disinfect biologically treated wastewater. It can only
be operated in combination with a KLARO or KLARO Easy small wastewater treatment
plant. The disinfection is accomplished by ultraviolet light (UV) which is an effective,
efficient and particularly environmentally friendly method. UV light kills pathogenic
microorganisms within seconds without leaving any residues, harmful by-products or
disturbing odours. The effect of the UV light is used by applying particularly effective
UVC radiation (254 nm). Within seconds, it produces a photochemical reaction in the
DNA (deoxyribonucleic acid) essential for all microorganisms. This either kills the
microorganism or destroys its ability to multiply.
The reduction rate depends on the minimum UV radiation (UV dose), i.e. the time for
which a microorganism is exposed to a certain UV irradiance (W/m²). At a UV dose of
400 J/m², the required reduction of the most important human pathogenic bacteria,
parasites and viruses is achieved by 4 powers of ten. The disinfection capacity of a UV
system is mainly based on each volume element receiving the necessary UV dose
when flowing through the UV reactor. In order to ensure this, the UV plant’s irradiation
field and hydraulic system are optimally adjusted to each other.
At the UV dose levels used for disinfection, the UV radiation does not cause any
undesirable side reactions. As no disinfectant is added to the water by UV radiation,
there are no depot effects after passing of the UV reactor.

Betriebs- und Montageanleitung
KLARO blue. cycle
7 / 29
Stand: 09.2022
Änderungen vorbehalten
The connecting cable leading from the UV module to the control cabinet must not be
longer than 20 m for S50 and 5 m for S80. Greater cable lengths must be coordinated
in consultation with the manufacturer.
The reactor must be earthed. For this purpose, the green/yellow earthing cable is
guided from the reactor via the ballast and connecting cable to the control cabinet.
Inlet air lift
Mounting plate
Overflow
Transparent hose
Siphon
UV reactor
Electronic ballast
UV-lamp cable
Earthing cable

Betriebs- und Montageanleitung
KLARO blue. cycle
8 / 29
Stand: 09.2022
Änderungen vorbehalten
Pump cable
Mounting plate
Transparent hose
Pump
UV reactor
Electronic ballast
Pump cable
Mounting plate
Transparent hose
Float switch
Pump
UV reactor
Electronic ballast

Betriebs- und Montageanleitung
KLARO blue. cycle
9 / 29
Stand: 09.2022
Änderungen vorbehalten
The UV radiator is securely packaged and attached to the outside of the UV module.
Before commissioning, the UV radiator must be inserted into the UV reactor and
connected.
Lay the UV module on the floor
Remove the UV lamp from the packaging and wipe it with a clean cloth.
M16 Screw connection
VA protection cap
M12 Screw connection
VA-Screw connection
Four-Pin-socket
UV-lamp
Quarz tube
M5 cap nut
VA headpiece

Betriebs- und Montageanleitung
KLARO blue. cycle
10 / 29
Stand: 09.2022
Änderungen vorbehalten
Connect the four-pin socket to the UV lamp. Carefully insert the spotlight into
the quartz protection tube until it is completely recessed.
Slightly loosen the union nut of the M12 screw connection.
The VA screw connection is then screwed in hand-tight.
Then tighten the M12 screw connection and union nut hand-tight.
Put on the VA protective cap and tighten the M16 screw connection hand-tight.
Connect the ground cable to the UV reactor.
Install next to the control cabinet (2.5 m long connection cable to the controller)
Dowels are included in the kit

Betriebs- und Montageanleitung
KLARO blue. cycle
11 / 29
Stand: 09.2022
Änderungen vorbehalten
Fill the UV module with fresh water:
oFor UV modules with pumps, add water to the outlet side using a water
can
oWith a UV module without a pump, pour water into the siphon using a
jug on the inlet side until water comes out of the drain
Insert the UV module into the tank:
oInsert into the rail system (in the SBR concrete/downstream traverse)
oput on the partition (in the SBR Carat)
Make sure that the outlet of the UV module can safely drain into the outlet of the
container or the sampling!
Lead the cable through the empty conduit to the control cabinet
Wind up the free connection cable neatly in the container and hang it in a
suitable place in the upper area of the shaft.
If necessary, use the supplied PE DN40 pipe clamps! The additional clamp can be used
to hold the cables between the empty pipe and the first clamp. To do this, the clamp
can be mounted on the container cover.

Betriebs- und Montageanleitung
KLARO blue. cycle
12 / 29
Stand: 09.2022
Änderungen vorbehalten
Cabel
Wire
No.
Colour
Cabel type
Power
connection
Phase
L
br
3G1mm²
neutral wire
N
bl
protective
conductor
PE
gn/ge
UV-Lamp
Electrode 1
1
ws
4x0,5mm²
2
br
Electrode 2
3
gn
4
ge
UV-Reactor
Earth
5
gn/ge
H07V-K 1x2,5mm²
Cabel
Wire
No.
Colour
Cabel type
Power
connection
Phase
L
br
3G1mm²
neutral wire
N
bl
protective
conductor
PE
gn/ge
UV-Lamp
-
1
-
Brücke
2
-
Pumpe
Phase
3
sw1
YSLY-JB
3x1mm²
neutral wire
4
sw2
protective
conductor
5
gn/ge
UV-Lamp
Electrode 1
6
ws
4x0,5mm²
7
br
Electrode 2
8
gn
9
ge
UV-Reactor
Earth
10
gn/ge
H07V-K
1x2,5mm²

Betriebs- und Montageanleitung
KLARO blue. cycle
13 / 29
Stand: 09.2022
Änderungen vorbehalten
Cabel
Wire
No.
Colour
Cabel type
Float switch
Closing
contact
1
sw
H07RN-F
3x1mm²
2
bn
Pump
Phase
3
sw1
YSLY-JB
3x1mm²
neutral wire
4
sw2
protective
conductor
5
gn/ge
UV Lamp
Electrode 1
6
ws
4x0,5mm²
7
br
Electrode 2
8
gn
9
ge
UV-Reactor
Earth
10
gn/ge
H07V-K
1x2,5mm²
Power connection
Phase
L
br
3G1mm²
neutral wire
N
bl
protective
conductor
PE
gn/ge
Only use the cables supplied.
Do not use adapters or extensions.
Stripping length 9-11 mm.
Ensure that the ballast is voltage-free.
Strip the wires of the float switch 9−11 mm.
Feed the cables through the cable glands at the bottom of the box. To do this,
loosen union nuts if necessary.
Connect the wires according to the terminal assignment according to the
labeling. To do this, open the terminal point with an operating tool and insert
the wires into the respective erminal point as far as they will go
.
Make sure that the terminal points are assigned the correct wires.
Hand-tighten the union nuts of the cable glands.

Betriebs- und Montageanleitung
KLARO blue. cycle
14 / 29
Stand: 09.2022
Änderungen vorbehalten
Plug the Schuko plug into the power socket. The UV-Module downstream external
with pump is now operable.
Plug the connection cable into the X33 output of the controller.
*Klick*

Betriebs- und Montageanleitung
KLARO blue. cycle
15 / 29
Stand: 09.2022
Änderungen vorbehalten
Plug the plug of the UV module into the plug of the connection cable of the
control
The control is preset at the factory and the UV module is therefore automatically
controlled by the KLAROcontrol.M.
Use the arrow keys [◄][►] to select the “Information” menu and open it with
[OK].
Under “Show all settings”:
o“Module” > “UV module”
o“Cycle settings”:
o"Table selection"
o"Assign outputs"
o"cycle times"
o"Current Limits"
Use the arrow keys [◄][►] to select the “Operation”menu and open it with
[OK].
The current operating mode is displayed in the top line under “Operating mode”.
If the controller is in automatic mode, press the [OK] button again to activate
manual mode.
oManual mode is indicated by the symbol in the toolbar
oThe status LED lights up blue.
oThe clarification cycle is stopped in the background.
Use the arrow keys [▼][▲] to select the UV module and switch on with the [OK]
key.
The preheating time of 2 minutes begins. After that, the UV lamp will glow.
Clear tube/hose shimmers blue/purple at the outlet of the UV module in the
tank.
If the function is correct, switch off the UV module with the [OK] button on the
control.
Use the arrow keys [▼][▲] to select "Operating mode" and switch on automatic
mode again with the [OK] key.

Betriebs- und Montageanleitung
KLARO blue. cycle
16 / 29
Stand: 09.2022
Änderungen vorbehalten
Automatic mode is indicated by the symbol in the toolbar
The status LED lights up green
The clarification cycle is then continued at the point at which it was interrupted
when switching to manual mode
The controller automatically returns to automatic mode if no button is
pressed for 10 minutes.
The UV module is activated by the KLAROcontrol. First of all, the UV radiator is
warmed up for approx. 2 to 3 minutes (transparent drain hose shimmers blue).
Then, the discharging airlifter (via valve 3/for UV module without pump) or the electric
submersible pump (for UV module with pump) is switched on automatically and the
clear water is slowly and evenly transferred through the UV reactor to the outlet. The
delivery rate and time of the submersible pump or the discharging airlifter and the
throughput of the UV reactor are optimally adjusted to each other. The biological
treatment stage is timed. Depending on the plant’s size (number of PE) and the UV-
Module (integrated/ downstream/downstream external), there are different control
settings (factory-preset –tables in the annex). The submersible pump is equipped with
dry-running protection. If the minimum water level is achieved prior to the end of a
specified time, the pump switches off automatically –however, the UV radiator
remains activated until the end of the preset duty cycle.
The UV module with pump for disinfection of the clarified water may either be installed
downstream to the biological treatment stage in a separate container or directly
integrated into the SBR reactor of the plant.
The UV module without pump can only be used as integrated disinfection stage of the
treatment plant!

Betriebs- und Montageanleitung
KLARO blue. cycle
17 / 29
Stand: 09.2022
Änderungen vorbehalten
According to the provisions of the technical approval granted by the DIBt, small
wastewater treatment plants comprising a hygienisation stage must be serviced by an
expert at least three times per year. In this respect, the following activities must be
performed:
▪
Check of the operating hours of the UV module (from 1,500 operating hours at
the latest, we recommend replacing the UV lamp).
Check whether there are any error messages.
▪
Disconnect the connecting plug from the control cabinet.
Remove the UV module from the manhole and clean on the outside
(spraywash).
▪
If possible, the quartz tube should be checked for deposits during each
maintenance (every 4 months).
oo Disconnect the connecting plug from the control cabinet.
oo Proceed as described in chapter 5 "Inserting the UV radiator”. Then,
unscrew the M5 cap nuts of the VA fitting.
During removal, beware of spring pressure on the quartz tube!
If the quartz tube is damaged (rupture, crack) or shows
irremovable soiling, it must absolutely be replaced!
oCarefully remove the quartz tube. Afterwards, remove any deposit from
the quartz tube by using a soft and damp cloth. For this purpose, we
recommend using a glass cleaner containing citric acid. Then, remount
the quartz tube in clean and dry condition. Please note! The quartz tube
must be mounted centrally. When the quartz tube has been inserted into
the reactor, there must be a slight spring pressure. Otherwise, please
repeat the process.
▪

Betriebs- und Montageanleitung
KLARO blue. cycle
18 / 29
Stand: 09.2022
Änderungen vorbehalten
When 1,500 operating hours have been exceeded.
The connection plug must be disconnected from the control cabinet.
Replace the radiator as described in chapter 5 Installation
Used UV radiators must be properly disposed of either via your
local recycling yard or by returning them to your specialist dealer.
▪
The UV module must be inserted into the manhole, filled with water and
connected to the control cabinet.
Activate the UV module in manual mode. Check whether the UV radiator emits
light (the transparent outlet hose shimmers blue!?)
For the UV module with pump, check whether the feed pump is activated after
approx. 3 min.
▪
For testing the outlet quality (laboratory tests), water from the integrated
sampling unit can be used since a test with respect to the germ load is not
required according to the technical approval.
However, if proof of germ reduction is required, the sample must be taken
directly from the module outlet while the UV module is running (outlet phase).
As an alternative, the inactive UV module may be tested by unscrewing the
coupling at the outlet and tilting the reactor to collect the water flowing out.