Part No. 987739 ProMinent Dosiertechnik GmbH • 69123 Heidelberg • Germany BA DS 011 02/07 GB
Operating Instructions
for Dulcodes P and 45 D
UV systems
Please affix the rating plate here!
ProMinent
®
Please completely read through operating instructions! Do not discard!
Damages due to improper operation will invalidate the warranty!
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User information / Imprint
User information
These operating instructions contain
the product description in
Continuous text
• Enumerations
왘 Instructions
and notes on safety identified by pictographs.
WARNING
Your life will be in danger and serious bodily injuries may result if these safety notes are
disregarded!
CAUTION
Minor bodily injuries and damage to property may result if these safety notes are
disregarded!
IMPORTANT
Damage to property may result if these safety notes are disregarded!
NOTE
Working guidelines.
Imprint:
Operating Instructions
for Dulcodes P, for Dulcodes 45 D
UV system
© ProMinent Dosiertechnik GmbH, 2006
Address:
ProMinent Dosiertechnik GmbH
Im Schuhmachergewann 5-11
69123 Heidelberg
Germany
www.prominent.com
Technical changes reserved.
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Contents
Contents
1 Application ............................................................................................................................ 4
2 Safety chapter ...................................................................................................................... 4
2.1 Proper use .................................................................................................................. 4
2.2 Notes on safety ........................................................................................................... 4
3 Function ................................................................................................................................5
4 Control................................................................................................................................... 5
4.1 Display ........................................................................................................................ 5
4.2 Function keys .............................................................................................................. 6
4.3 Calibration of UV sensor ............................................................................................. 6
4.4 Connection of the shut-off valve or an operating message unit to the control .......... 7
4.5 External switching on and off of the UV disinfection system ..................................... 7
5 Mounting and installation .................................................................................................... 7
5.1 Radiation chamber...................................................................................................... 8
5.1.1 Mounting ..................................................................................................................... 8
5.1.2 Fixing of the danger sign ............................................................................................ 8
5.1.3 Connections, hydraulic ............................................................................................... 8
5.2 Control cabinet and control ........................................................................................ 9
5.2.1 Mounting ..................................................................................................................... 9
5.2.2 Connections, electrical ............................................................................................... 9
5.2.3 Opening of control ...................................................................................................... 9
5.2.4 Connection of the pre-mounted shut-off valve to the control (optional) .................... 11
5.2.5 Accessing the software version “Suppression of error message” .............................. 11
5.3 Installation of the lamp protection tube ...................................................................... 12
5.4 Mounting and connection of the UV lamp .................................................................. 12
6 Commissioning ..................................................................................................................... 14
6.1 Leakage test and deaeration of the radiation chamber .............................................. 14
6.2 Switching on of disinfection system ........................................................................... 14
6.3 Calibration of the UV C sensor ................................................................................... 15
7 Maintenance ......................................................................................................................... 15
7.1 Cleaning of the lamp protection tube ......................................................................... 16
7.2 Replacement of the UV lamps .................................................................................... 18
7.3 Calibration of the UV C sensor ................................................................................... 19
8Troubleshooting .................................................................................................................... 20
Dimension sheet..................................................................................................................... 22
Terminal diagram Dulcodes P and 45 D ................................................................................. 24
Annex
EU Conformity Declaration .................................................................................................... 25
Operating journal .................................................................................................................... 26
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Application / Notes on safety
1 Application
The Dulcodes P and 45 D UV disinfection systems serve the disinfection of
• Drinking water and
• Industrial water.
During UV disinfection, the water to be disinfected is radiated using short-wave UV light.
The so-called UV C radiation guarantees a quick and safe killing of germs.
The Dulcodes P and 45 D UV disinfection systems are complete and ready for connection.
They are available in various versions which are determined in the Identcode.
Scope of delivery • Radiation chamber
• UV lamp with pertinent lamp protection tube
• System control
• Electronic ballast (depending on system type, either integrated in the control or in a
separate housing)
• UV C sensor
• O-rings
• Hook spanner
• Mounting material
• Operating instructions and datasheet
• Shut-off valves (optional)
• Air bleed valves and drain valves (optional)
2 Safety chapter
2.1 Proper use
• The system is exclusively designed to treat water.
• The system may only be used in compliance with the technical data and specifications
stated in the operating instructions!
• All other uses or modifications are prohibited.
• The system may only be operated by specially trained and authorised personnel!
• You are obliged to observe the information in the operating instructions on the various life
phases of the system!
2.2 Notes on safety
WARNING
• UV C radiation is harmful to eyes and skin.
Only switch on the UV lamps when installed!
Properly install the UV disinfection system before commissioning the lamps!
• An incorrectly calibrated UV C sensor cannot perform its monitoring function. Given
unfavourable circumstances, insufficiently disinfected water may reach the consumer.
• For applications with high disinfection demands (e.g. drinking water disinfection), the
downstream pipings are to be disinfected by e.g. high chlorination before
commissioning.
This is in particular required in case of lines already contaminated by germs.
• Ensure that
• the maximum permissible water flow rate is not exceeded, and
• the minimum permissible UV transmission is not undershot,
because otherwise no sufficient disinfection is guaranteed!
• In case of longer operation of the UV disinfection system without flow, the water
temperature is to be monitored and the system is to be deactivated, if required!
• The place of installation must be dry and protected against freezing and must
guarantee that the UV disinfection system is protected against chemicals, dyes, and
vapours.
• The ambient temperature as well as the radiation temperature close-by may not
exceed 40 °C.
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Notes on safety / Function / Control
• If solid particles or clouding agents are present in the water to be disinfected, a
suitable filter is to be installed upstream of the disinfection system!
• Make sure that the maximum permissible operating pressure stated in the enclosed
datasheet is not exceeded!
• Disconnect from mains supply before mounting and connecting the UV lamps!
• Switch on the system only after having filled the radiation chamber with water!
NOTE
Please observe the datasheet enclosed with the Dulcodes UV disinfection system!
3 Function
The water to be disinfected flows through the stainless steel radiation chamber along the UV
lamps. The UV radiation safely kills the germs.
The low pressure UV lamps generate a high-yield UV C radiation with a wavelength of 254nm
which is especially effective for disinfection. The lamps are housed in lamp protection tubes
made of high-quality quartz with a high level of UV transparency.
The compact design of the radiation chamber, the optimised flow as well as the in-built
turbulators guarantee an uniform radiation of the entire water flow.
Together with the UV C sensor, the control monitors the UV disinfection system.
The UV lamp is ignited after activating the UV disinfection system. After ignition, it may take
several minutes until the lamp has reached its operating temperature and provides the full UV C
output.
The UV C sensor monitors the lamps. As soon as the sensor signal exceeds the safety
threshold, the shut-off valve (optional) opens.
If the sensor signal does not exceed the safety threshold within 5 minutes, the lamp is
deactivated. The system goes into error mode.
If the system is running, it continues to monitor the UV C output. If the sensor signal drops
below the alarm threshold, an alarm message appears on the display. In case of a drop below
the safety threshold, the shut-off valve (optional) closes. If the sensor signal does not exceed
the safety threshold again within 1 minute, the lamp is deactivated. The system goes into error
mode.
For certain applications, an oxidant has to be added intermittently to the water to be
disinfected. If the added oxidant is highly UV-absorbent (e.g. hydrogen peroxide), the sensor
signal may drop below the safety threshold. In order to prevent that the UV disinfection system
then goes into error mode, the error message can be suppressed. In case of a suppressed error
message, the lamp continues to operate even if the safety threshold is undershot.
4 Control
Version Because the electronics and software are continuously improved, the version number was
introduced as an identification means. This number is to be stated for inquiries and complaints.
The version number is shown on the display for 2 seconds after having activated the system.
4.1 Display
This system uses a graphical display.
The version number, the operating hours of the control as well as the total number of lamp
activations are shown on the display for 2 seconds after having activated the system.
The standard display shows the UV C output of the UV lamp in Wm
2
, the alarm threshold, the
safety threshold as well as the lamp operating hours and the number of lamp activations.
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Control
12.1 W/m
2
55.0 W/m
2
50.0 W/m
2
®
DULCODES
12345h
12345
UV
Graphical display
Function keys
Display of UV C output
Operating hours
Safety threshold
Alarm threshold
Number of lamp activations
Figure 1: Display and operating unit
4.2 Function keys
START/STOP Switches the UV disinfection system on or off.
CALIBRATION Switches to the calibration mode.
ENTER Confirms the calibration.
Acknowledges a fault.
NOTE
• Keep the keys pressed for at least 2 seconds!
• The CALIBRATION key is only released 1 minute after having activated the UV
disinfection system.
4.3 Calibration of UV sensor
WARNING
• Only a correctly calibrated UV C sensor guarantees sufficient disinfection.
• When calibrating the UV C sensor, the water to be disinfected must flow through the
radiation chamber.
IMPORTANT
When calibrating the UV C sensor, a new UV lamp must be used and the lamp protection
tube as well as the sensor window must be cleaned.
NOTE
See also Chap. 6.2 “Switching on of the disinfection system“.
The UV C sensor is to be calibrated during commissioning as well as at each lamp replacement.
During calibration, the alarm threshold and the safety threshold are newly set. The operating
hours counter as well as the counter of the lamp activations are reset to zero.
Before calibration, the UV C sensor signal must be stable. A changing sensor signal shows that
the UV lamp has not reached its final operating temperature.
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Control / Mounting and installation
NOTE
The CALIBRATION key is only released 1 minute after having activated the UV disinfection
system. Thus, the UV C sensor can be calibrated 1 minute after having activated the UV
disinfection system at the earliest.
Calibration 왘 Press the CALIBRATION
for 2 seconds;
the displayed UV C sensor signal starts to flash
왘 Press the ENTER for 2 seconds within 5 seconds;
the calibration display is shown
---
W/m
2
After 2 seconds, the system returns to the standard display. The alarm threshold and the safety
threshold are now newly set. The operating hours counter as well as the counter of the lamp
activations are now reset to zero.
The calibration of the UV C sensor is now complete.
4.4 Connection of the shut-off valve or an operating message unit to
the control
The control is equipped with a switching output to which a shut-off valve or an alarm device can
be connected depending on the configuration.
For drinking water disinfection or similar applications, it is necessary to install an automatic
shut-off valve downstream of the UV disinfection system. This ensures that only sufficiently
disinfected water reaches the consumer.
If a 230V shut-off valve is to be connected to the control, a cable jumper between the terminals
L2 and XR1:1 and the control is required (delivery condition).
The no-load closed shut-off valve is connected to the terminals XR2 and N2 of the control.
As long as the UV C sensor signal exceeds the safety threshold, the cut-off valve is supplied
with supply voltage and the water is transported to the consumer.
For applications which require a switching output instead of a 230V output, the cable jumper
between the terminals L2 and XR1:1 is to be removed.
An operating message unit can now be connected to the terminals XR1:1 and XR1:2 of the
control. As long as the UV C sensor signal drops below the safety threshold or the system is
switched off, the switching contact opens and the interruption is signalled.
4.5 External switching on and off of the UV disinfection system
The UV disinfection system can be switched on and off by switching the power supply.
The system connected to the power supply is to be switched on by pressing the START/STOP
key. Then, the system can be switched on and off by activating or deactivating the power
supply.
5Mounting and installation ≠≠
Please observe the following notes on safety before installing the system:
WARNING
Ensure that
• the maximum permissible water flow rate is not exceeded, and
• the minimum permissible UV transmission is not undershot,
because otherwise no sufficient disinfection is guaranteed!
The maximum permissible water flow rate is described in the enclose datasheet.
It is a function of the required radiation dose as well as of the minimum permissible UV
transmission of the water to be disinfected.
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Mounting and installation
IMPORTANT
• The place of installation must be dry and protected against freezing and must
guarantee that the UV disinfection system is protected against chemicals, dyes, and
vapours.
• The ambient temperature as well as the radiation temperature close-by may not
exceed 40 °C.
• If solid particles or clouding agents are present in the water to be disinfected, a
suitable filter is to be installed upstream of the disinfection system!
• Make sure that the maximum permissible operating pressure stated in the enclosed
datasheet is not exceeded!
NOTE
Despite the use of sophisticated lamp ballasts with gentle lamp ignition, the UV
disinfection system is to be operated such that frequent switching on and off of the UV
lamps is avoided.
5.1 Radiation chamber
The type of the radiation chamber is described in the enclose datasheet.
Type “vertical wall-mounting”, type “horizontal” or type “upright”.
5.1.1 Mounting
IMPORTANT
• Only the type of mounting listed in the enclosed datasheet is permissible.
• Leave sufficient space for maintenance work!
The required clearance is described in the enclosed datasheet!
Vertical wall-mounting 왘 Install the radiation chamber vertically on the wall or a suitable frame using the enclosed
mounting material
Horizontal 왘 Install the radiation chamber horizontally on the wall or a suitable frame using the enclosed
mounting material
Upright 왘 Position the radiation chamber upright on the floor
5.1.2 Fixing of the danger sign
NOTE
The enclosed self-adhesive danger sign is to be affixed well-visibly at the radiation
chamber.
5.1.3 Connections, hydraulic
WARNING
For applications with high disinfection demands (e.g. drinking water disinfection) without
planned interruption of the water flow in cases of failures (e.g. switching off of delivery
pump): Install an automatic shut-off valve downstream of the radiation chamber and
connect it to the control!
The automatic shut-off valve must close automatically such that the water flow is
interrupted even in case of a possible failure of the supply voltage.
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Mounting and installation
IMPORTANT
• Hydraulically connect the radiation chamber according to the valid general provisions
as well as the local installation regulations!
• Use UV-resistant material for hydraulic connections!
When using PVC, a discolouration of the PVC in the connection area is to be expected,
given unfavourable conditions even an embrittlement of the material.
NOTE
•Provide for valves to shut-off the radiation chamber during maintenance work
upstream and downstream of the radiation chamber!
• It would be of advantage to provide for valves, which can be flamed and which are
suitable for microbiological sampling, upstream and downstream of the radiation
chamber.
5.2 Control cabinet and control
5.2.1 Mounting
왘 Install the control on the wall or a suitable frame such that the UV lamps as well as the UV C
sensors can be connected using the dedicated cables. (cable length approx. 1.5m for most
systems)
IMPORTANT
Do not extend the lamps’ connecting cables and the sensor cable!
5.2.2 Connections, electrical
The electrical installation is to be performed by an authorised electrical engineer using the
documentation (connection diagram) provided.
WARNING
• Observe the valid general provisions as well as the local installation regulations!
• Perform installation work only if the system is off circuit!
• Connect the protective connector to the radiation chamber!
• Do not extend the lamps’ connecting cables and the sensor cable!
5.2.3 Opening of control
The control only needs to be opened to connect a non-pre-mounted shut-off valve or an alarm
device as well as to access the software version “Suppression of the error message” (see 5.2.5).
WARNING
Ensure that no voltage is applied to the control before opening the control!
Opening of control 왘 Loosen the 4 screws at the top of the control
왘 Open control: (see Figure 2)
press at the front edge of the housing with your index finger and simultaneously pull to the
front; the locking latches are thus unlocked
왘 Remove the top gently from the bottom by pulling to the front (both parts are connected by
a ribbon cable!)
왘 Insert the top with both guiding rails into the slot approx. 80mm above
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Mounting and installation
Now, all connecting terminals are freely accessible. At the bottom of the control, there are closed
holes which have to be pried out to feed through the connecting cables.
The 5 feedthroughs of the rear row are meant for PG11 screw fittings.
The 4 feedthroughs of the front row are meant for PG7 screw fittings.
Figure 2: Opening of the control
IMPORTANT
Use pry-out tools to pry out the closed cable feedthroughs at the bottom of the control to
prevent any damage of the board and the threads!
Connection of cables 왘 Pry out closed cable feedthroughs at the bottom of the control
왘 First connect the cables of the rear row: (see Figure 3)
Push PG11 screw fittings (1), thrust washer (2) and gasket (3) from the enclosed
supplementary kit onto the cable, insert into the threaded holes, and tighten fingertight
왘 Then connect the cables of the front row: (see Figure 4)
Pull the PG7 screw fittings (4) over the cable and lock with the locknut (5)
왘 Connect the flexible wires to the terminals according to the electrical connection diagram
왘 Position unused terminals onto the pertinent strips
왘 Close the control
Figure 3: Cable feed rear row 1 PG11 screw fitting
2 Thrust washer
3 Gasket
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Mounting and installation
Figure 4: Cable feed front row 4 PG7 screw fitting
5 Locknut
5.2.4 Connection of the pre-mounted shut-off valve to the control
(optional)
If the system is equipped with a pre-mounted shut-off valve, the valve is to be connected to the
control. Connect the mains connector of the shut-off valve to the valve and tighten.
5.2.5 Accessing the software version “Suppression of error message”
For certain applications, an oxidant has to be added intermittently to the water to be
disinfected. If the added oxidant is highly UV-absorbent (e.g. hydrogen peroxide), the sensor
signal may drop below the safety threshold. In order to prevent that the UV disinfection system
then goes into error mode, the error message can be suppressed. In case of a suppressed error
message, the lamp continues to operate even if the safety threshold is undershot.
The control is to be opened (see 5.2.3) to access the function "Suppression of error message".
Then, remove the jumper according to figure 5 and re-connect the control.
Kurzschlussbrücke
Figure 5: Detail of the control board with jumper
Jumper
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Mounting and installation
5.3 Installation of the lamp protection tube
IMPORTANT
Examine the lamp protection tube for damages before the installation!
A damaged lamp protection tube may not be installed.
왘 Loosen the bracket of the lamp protection tube using the enclosed hook spanner
왘 Remove the bracket of the lamp protection tube from the radiation chamber by screwing it
out
왘 Push the enclosed O-ring approx. 40mm over the open end of the lamp protection tube
왘 Insert the lamp protection tube into the radiation chamber
IMPORTANT
• Ensure that the lamp protection tube is positioned correctly!
The lamp protection tube may protrude 40mm at the most and may show no angular
offset.
• Check whether the Teflon ring is positioned in the pertinent groove of the bracket of
the lamp protection tube (see Figure 7)! Otherwise, insert the Teflon ring into the
bracket of the lamp protection tube until it is positioned in the pertinent groove.
왘 Push the bracket of the lamp protection tube onto the lamp protection tube and screw into
the radiation chamber; tighten by hand
왘 Tighten the bracket of the lamp protection tube using the enclosed hook spanner
5.4 Mounting and connection of the UV lamp
WARNING
• Disconnect from mains supply before mounting and connecting the UV lamp!
• UV C radiation is harmful to eyes and skin.
Only commission the UV lamp when installed!
Properly install the UV disinfection system before commissioning the lamp!
• Do not extend the lamps’ connecting cables and the sensor cable!
• Do not change the distance between plug and lamp cover!
Otherwise it is not guaranteed that the UV lamp is positioned flush to the closed end of
the lamp protection tube. This is, however, a prerequisite for a safe disinfection.
IMPORTANT
Do not touch the glass of the UV lamp with bare hands!
Fingerprints burn in to the glass and may result in early failures.
Remove fingerprints before the installation using a cloth wetted with alcohol!
NOTE
Please observe the following for a disinfection of water having a water temperature
exceeding 25 °C (as e.g. for bathwater disinfection):
For lamp types equipped with O-rings for guiding in the lamp protection tube, these
guiding rings must be removed before installing the lamp to prevent any overheating of
the lamp.
Figure 6: Lamp with O-rings for guiding in the lamp protection tube
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Mounting and installation
15
13
16
13
12
11
14
9
8
76
3
2
1
5
4
10
Figure 7: Design of the radiation chamber 1 Knurled nut
2 Bracket of the lamp protection tube
3 Air bleed screw with O-ring*
4 O-ring
5 UV C sensor
6 Water drain screw with O-ring*
7 Water inlet
8 UV lamp
9 Lamp protection tube
10 Radiation chamber
11 Mounting elements
12 Water outlet
13 O-ring
14 Connector
15 Lamp cover
16 Teflon ring
* As accessories, manual values are available instead of bleed screw and water drain screw.
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Mounting and installation / Commissioning
왘 Place the O-ring on the bracket of the lamp protection tube in the pertinent groove
왘 Insert the lamp into the lamp protection tube and let protrude for approx. 100mm
왘 Connect the connector to the lamp
NOTE
The connector can only be connected in certain positions. If necessary, turn the
connector by 90° and then try again.
왘 Insert the lamp fully into the lamp protection tube
왘 Mount the lamp cover on the bracket of the lamp protection tube using the knurled nut
(only tighten slightly)
6 Commissioning
WARNING
For applications with high disinfection demands (e.g. drinking water disinfection), the
downstream pipings are to be disinfected by e.g. high chlorination before commissioning!
This is in particular required in case of lines already contaminated by germs.
6.1 Leakage test and deaeration of the radiation chamber
왘 Open the bleed screw or bleed valve at the radiation chamber
왘 Slowly open the shut-off valve upstream of the radiation chamber
왘 Fill the radiation chamber until water flows from the bleed screw or bleed valve
왘 Close the bleed screw or bleed valve
왘 Check the radiation chamber for leakages
왘 Open the shut-off valve downstream of the radiation chamber (only required in case of
manual shut-off valve)
6.2 Switching on of disinfection system
IMPORTANT
Switch on the system only after having filled the radiation chamber with water!
Switching on 왘 Connect the mains plug
왘 To switch on the system, press START/STOP
for 2 seconds
After ignition of the UV lamp, it may take several minutes until the lamp has reached its
operating temperature and provides the full UV C output.
If the UV C sensor signal does not exceed the safety threshold within 5 minutes, the lamp is
deactivated. The system goes into error mode. In this case, proceed as follows:
왘 Press ENTER
for 2 seconds to acknowledge the fault
왘 Press START/STOP
for 2 seconds to reactivate the system
왘 Perform a preliminary calibration of the UV C sensor as described in 6.3 within 5 minutes
NOTE
If the error message (see 5.2.5) is suppressed, the lamp is not deactivated after expiry of 5
minutes given an UV C sensor signal smaller than the safety threshold. A calibration of the
UV C sensor is no longer possible after expiry of these 5 minutes.
WARNING
A preliminary calibration does not replace the final calibration of the UV C sensor with a
UV lamp which reached its operating temperature.
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Commissioning / Maintenance
6.3 Calibration of the UV C sensor
WARNING
• Only a correctly calibrated UV C sensor guarantees sufficient disinfection.
• When calibrating the UV C sensor, the water to be disinfected must flow through the
radiation chamber.
IMPORTANT
When calibrating the UV C sensor, a new UV lamp must be used and the lamp protection
tube as well as the sensor window must be cleaned.
NOTE
See also Chap. 6.2 “Switching on of the disinfection system“.
The UV C sensor is to be calibrated during commissioning as well as at each lamp replacement.
During calibration, the alarm threshold and the safety threshold are newly set. The operating
hours counter as well as the counter of the lamp activations are reset to zero.
Before calibration, the UV C sensor signal must be stable. A changing sensor signal shows that
the UV lamp has not reached its final operating temperature.
NOTE
The CALIBRATION key is only released 1 minute after having activated the UV disinfection
system. Thus, the UV C sensor can be calibrated 1 minute after having activated the UV
disinfection system at the earliest.
Calibration 왘 Press CALIBRATION
for 2 seconds;
the displayed UV C sensor signal starts to flash
왘 Press ENTER for 2 seconds within 5 seconds;
the calibration display is shown
---
W/m
2
After 2 seconds, the system returns to the standard display. The alarm threshold and the safety
threshold are now newly set. The operating hours counter as well as the counter of the lamp
activations are now reset to zero.
The calibration of the UV C sensor is now complete.
7 Maintenance
The maintenance of the UV disinfection system is limited to the cleaning of the lamp protection
tube as well as the replacement of the lamp at the end of the maximum permissible service life.
An operating journal should be used for documentation; a form is enclosed in the annex.
WARNING
• Replace the UV lamp after expiry of the maximum permissible service life at the latest!
Otherwise, the operating safety of the UV disinfection system is no longer guaranteed.
• The maximum permissible service life is described in the datasheet enclosed with the
UV disinfection system!
• Disconnect from mains before commencing any maintenance work!
• Depressurise the radiation chamber before commencing any maintenance work!
• UV C radiation is harmful to eyes and skin.
Only commission the UV lamp when installed!
Properly install the UV disinfection system before commissioning the lamp!
HINWEI
S
Die gebrauchte Rein
gen!
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Maintenance
7.1 Cleaning of the lamp protection tube
Deposits (e.g. iron, manganese or lime) may form on the lamp protection tube during operation.
These deposits absorb UV radiation and must thus be removed in regular intervals.
NOTE
A cleaning is to be performed at the latest if the UV C sensor signal undershoots the alarm
threshold and if this fact is not the result of other causes such as lamp ageing or
significant deterioration of the UV transmission.
For many UV disinfection systems, an annual cleaning of the lamp protection tube together with
the lamp replacement is sufficient. For UV disinfection systems which are used to disinfect
waster water, partially a cleaning every one to two months is required.
The lamp protection tube can be cleaned when removed or by filling the radiation chamber with
a cleaning solution. In particular acids such as diluted phosphoric acid, citric acid or diluted
nitric acid are suitable for cleaning.
CAUTION
• Do not use any corrosion- or stress crack-promoting acids such as hydrochloric acid!
• Observe the safety datasheet of the chosen cleaning agent!
•Wear appropriate protective clothing during cleaning
(safety goggles, protective gloves …)!
• Ensure that no cleaning solution gets into the lamp protection tube!
• Ensure that no cleaning solution gets into the piping network during the cleaning of UV
disinfection systems!
This applies in particular to drinking water disinfection and similar applications.
NOTE
Dispose of the used cleaning solution according to the valid provisions and regulations!
Version 1: Removal of the
lamp protection tube 왘 Press START/STOP
for 2 seconds to switch off the system
왘 Disconnect the mains plug
왘 Close the shut-off valves upstream and downstream of the radiation chamber
왘 Open the water drain screw as well as the bleed screw or the drain and bleed valve
왘 Drain the radiation chamber
왘 Loosen the knurled nut at the bracket of the lamp protection tube by hand
왘 Pull out the lamp cover such that the connector of the connecting cable can be removed
from the lamp
왘 Remove lamp and place aside
왘 Loosen the bracket of the lamp protection tube using the enclosed hook spanner
왘 Remove the bracket of the lamp protection tube from the radiation chamber by screwing it
out
왘 Pull out the lamp protection tube
왘 Remove the O-ring from the lamp protection tube
왘 Clean the lamp protection tube with cleaning solution or immerse in cleaning solution until
the deposits are completely removed
왘 Rinse the lamp protection tube with clean water and dry with a soft cloth
IMPORTANT
Examine the lamp protection tube for damages before the installation!
A damaged lamp protection tube may not be reinstalled.
왘 Examine the O-ring for damages; replace damaged O-ring
왘 Push the O-ring approx. 40mm over the open end of the lamp protection tube
왘 Insert the lamp protection tube into the radiation chamber
BA_DS_011_02_07_GB.p65 12.02.2007, 12:03 Uhr16
ProMinent
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Page 17
Maintenance
IMPORTANT
Ensure that the lamp protection tube is positioned correctly!
The lamp protection tube may protrude 40 mm at the most and may show no angular
offset.
왘 Push the bracket of the lamp protection tube onto the lamp protection tube and screw into
the radiation chamber; tighten by hand
왘 Tighten the bracket of the lamp protection tube using the enclosed hook spanner
왘 Mounting and connection of the UV lamps as described in item 5.4
Cleaning of UV C sensor The cleaning of the lamp protection tube is to be accompanied by a cleaning of the UV C
sensor:
왘 Remove sensor connecting cable from the UV C sensor
왘 Unscrew the UV C sensor from the radiation chamber
왘 Clean the quartz window with a cloth wetted with cleaning solution until the deposits are
completely removed
왘 Rinse the quartz window with clean water and dry with a soft cloth
왘 Examine the O-ring for damages; replace damaged O-ring
왘 Reinstall the UV C sensor and tighten (only use slight force)
왘 Reconnect the sensor connecting cable to the UV C sensor
왘 Close the water drain screw or the drain valve
왘 Slowly open the shut-off valve upstream of the radiation chamber
왘 Fill the radiation chamber until water flows from the bleed screw or bleed valve
왘 Close the bleed screw or bleed valve
왘 Open the shut-off valve downstream of the radiation chamber (only required in case of
manual shut-off valve)
왘 Check the radiation chamber for leakages
왘 Connect the mains plug
The UV disinfection system is now again ready for operation.
Version 2:
Filling with cleaning solution Cleaning of the lamp protection tube by filling the radiation chamber with a cleaning solution:
왘 To switch off the system, press START/STOP
for 2 seconds
왘 Disconnect the mains plug
왘 Close the shut-off valves upstream and downstream of the radiation chamber
왘 Open the water drain screw as well as the bleed screw or the drain and bleed valve
왘 Drain the radiation chamber
왘 Close the water drain screw or the drain valve
왘 Fill the radiation chamber through the bleed opening with cleaning solution
왘 Let the cleaning solution react for at least 20 minutes
왘 Open the water drain screw or the drain valve
왘 Drain the radiation chamber and dispose of the cleaning solution according to regulations
왘 Thoroughly rinse the radiation chamber with clean water until all remainders of the cleaning
solution have been removed
왘 Close the water drain screw or the drain valve
왘 Slowly open the shut-off valve upstream of the radiation chamber
왘 Fill the radiation chamber until water flows from the bleed screw or bleed valve
왘 Close the bleed screw or bleed valve
왘 Open the shut-off valve downstream of the radiation chamber (only required in case of
manual shut-off valve)
왘 Check the radiation chamber for leakages
왘 Connect the mains plug
The UV disinfection system is now again ready for operation.
BA_DS_011_02_07_GB.p65 12.02.2007, 12:03 Uhr17
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Page 18
Maintenance
NOTE
• For radiation chambers which are regularly cleaned by filling with a cleaning solution, it
is recommended to replace the water drain screw as well as the bleed screw by
suitable valves.
• For larger radiation chambers, filling through the water drain opening with a suitable,
acid-resistant pump is recommended.
If the radiation chamber is filled with a pump, the cleaning solution should be
circulated through the bleed hole. This reduces the cleaning time and improves the
result.
7.2 Replacement of the UV lamps
WARNING
• The UV lamp is to be replaced by a new one at the latest if
• the sensor signal approaches the safety threshold and if this fact is not the result of
other causes such as deposits on the lamp protection tube or significant
deterioration of the UV transmission;
• the lamp operating hours approach or exceed the maximum service life for the
lamp.
• Disconnect from mains supply before mounting and connecting the UV lamps!
• UV C radiation is harmful to eyes and skin.
Only commission the UV lamp when installed!
Properly install the UV disinfection system before commissioning the lamp!
• Do not extend the already installed lamps’ connecting cables!
• Do not change the distance between plug and lamp cover!
Otherwise it is not guaranteed that the UV lamp is positioned flush to the closed end of
the lamp protection tube. This is, however, a prerequisite for a safe disinfection.
IMPORTANT
Do not touch the glass of the UV lamp with bare hands!
Fingerprints burn in to the glass and may result in early failures.
Remove fingerprints before the installation using a cloth wetted with alcohol!
NOTE
• Please observe the following for a disinfection of water having a water temperature
exceeding 25 °C (as e.g. for bathwater disinfection):
For lamp types equipped with O-rings for guiding in the lamp protection tube, these
guiding rings must be removed before installing the lamp to prevent any overheating of
the lamp.
• Clean the lamp protection tube each time when replacing a lamp!
왘 To switch off the system, press START/STOP
for 2 seconds
왘 Disconnect the mains plug
왘 Close the shut-off valves upstream and downstream of the radiation chamber
왘 Loosen the knurled nut at the bracket of the lamp protection tube by hand
왘 Pull out the lamp cover such that the connector of the connecting cable can be removed
from the lamp
왘 Remove lamp and place aside
왘 Check whether the O-ring is positioned at the bracket of the lamp protection tube in the
pertinent groove and is not damaged; replace damaged O-ring
왘 Insert the new lamp into the lamp protection tube and let protrude for approx. 100 mm
왘 Connect the connector to the lamp
BA_DS_011_02_07_GB.p65 12.02.2007, 12:03 Uhr18
ProMinent
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Page 19
Maintenance
NOTE
The connector can only be connected in certain positions. If necessary, turn the
connector by 90° and then try again.
왘 Insert the lamp fully into the lamp protection tube
왘 Mount the lamp cover on the bracket of the lamp protection tube using the knurled nut (only
tighten slightly)
왘 Slowly open the shut-off valve upstream of the radiation chamber
왘 Open the shut-off valve downstream of the radiation chamber (only required in case of
manual shut-off valve)
왘 Connect the mains plug
WARNING
Re-calibrate the UV C sensor after the installation of a new UV lamp!
It is only after a re-calibration that the operating safety of the UV disinfection system is
guaranteed.
7.3 Calibration of the UV C sensor
WARNING
• Only a correctly calibrated UV C sensor guarantees sufficient disinfection.
• When calibrating the UV C sensor, the water to be disinfected must flow through the
radiation chamber.
IMPORTANT
When calibrating the UV C sensor, a new UV lamp must be used and the lamp protection
tube as well as the sensor window must be cleaned.
NOTE
See also Chap. 6.2 “Switching on of the disinfection system“.
The UV C sensor is to be calibrated during commissioning as well as at each lamp replacement.
During calibration, the alarm threshold and the safety threshold are newly set. The operating
hours counter as well as the counter of the lamp activations are reset to zero.
Before calibration, the UV C sensor signal must be stable. A changing sensor signal shows that
the UV lamp has not reached its final operating temperature.
NOTE
The CALIBRATION key is only released 1 minute after having activated the UV disinfection
system. Thus, the UV C sensor can be calibrated 1 minute after having activated the UV
disinfection system at the earliest.
Calibration 왘 Press CALIBRATION
for 2 seconds;
the displayed UV C sensor signal starts to flash
왘 Press ENTER for 2 seconds within 5 seconds;
---
W/m
2
After 2 seconds, the system returns to the standard display. The alarm threshold and the safety
threshold are now newly set. The operating hours counter as well as the counter of the lamp
activations are now reset to zero.
The calibration of the UV C sensor is now complete.
BA_DS_011_02_07_GB.p65 12.02.2007, 12:03 Uhr19
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Page 20
8Troubleshooting
UV C sensor signal smaller than alarm threshold
12345h
12345
53 W/m
2
55
50
Message: Flashing down arrow
Possible cause Formation of deposits on the lamp protection tube and/or the UV C sensor
Remedy 왘 Clean the lamp protection tube and the UV C sensor
Possible cause Deterioration of the UV transmission of the water to be disinfected
Remedy 왘 Improve water quality
Possible cause UV lamp at the end of the lamp’s service life
Remedy 왘 Install new UV lamp
Possible cause UV C sensor not calibrated
Remedy 왘 Calibrate UV C sensor
UV C sensor signal smaller than safety threshold
45 W/m
2
12345h
12345
55
50
Message: Flashing double-headed down arrow
Possible cause UV lamp has not yet reached its operating temperature
Remedy 왘 wait until the UV lamp has reached its operating temperature
For application where it is required to suppress the error message by the control software, this
error message may have the following further causes.
Possible cause Metering of a highly UV-absorbent oxidant
Remedy 왘 wait until the oxidant has degraded
Possible cause Failure
Remedy 왘 see following section ”System in error mode“
System in error mode
45 W/m
2
12345h
12345
55
50
Message: Flashing display
IMPORTANT
After 60s, the control below goes to the next error message!
Possible cause Formation of deposits on the lamp protection tube and/or the UV C sensor
Remedy 왘 Clean the lamp protection tube and the UV C sensor
Possible cause Deterioration of the UV transmission of the water to be disinfected
Remedy 왘 Improve water quality
Possible cause UV lamp at the end of the lamp’s service life
Remedy 왘 Install new UV lamp
Possible cause UV lamp faulty
Remedy 왘 Install new UV lamp
Possible cause UV C sensor not calibrated
Remedy 왘 Calibrate UV C sensor
Troubleshooting
BA_DS_011_02_07_GB.p65 12.02.2007, 12:03 Uhr20
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ProMinent Dulcodes P Operating Instructions Manual
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