Rodem Aquionics PureLine M Manual

P
Pu ur re eL Li
in ne e
M M
O
Op pe er ra at ti io on n & & M Ma ai in nt te en na an nc ce e
M
Ma an nu ua al l
Aquionics Inc.
1455 Jamike Avenue, Suite 100
Erlanger, KY 41018
United States of America
Tel [phone]
E-Mail [e-mail]
Web www.aquionics.com

190104-2001-02
Aquionics Contact Details
Should any problems be encountered during the installation, operation and maintenance of your
system, please do not hesitate to contact either our sales team or our service team using the
details below.
Telephone [phone]
Visit us on the web
www.aquionics.com
Email
[email protected]
[email protected]
To order further copies of this manual use the contact details above quoting Order Code
190104-2001.
Copyright © 2016.
All rights and subsequent amendments reserved.
No part of this publication may be reproduced, printed, photocopied stored on microfilm and / or
otherwise made public in any form whatsoever without obtaining the prior written permission of
Aquionics Inc.

PureLine M Operation and Maintenance Manual
Page 1 of 54
Table of Contents
1. INTRODUCTION ....................................................................................................3
1.1 GENERAL...................................................................................................................................3
1.2 SYSTEM OVERVIEW ................................................................................................................3
1.3 DOCUMENTS.............................................................................................................................3
1.4 TEXT CONVENTIONS...............................................................................................................4
2. SAFETY..................................................................................................................5
2.1 GENERAL...................................................................................................................................5
2.2 PICTOGRAMS AND GENERAL SAFETY INSTRUCTIONS.....................................................5
2.3 SYSTEM SAFETY FEATURES..................................................................................................6
2.4 BROKEN LAMPS OR QUARTZ SLEEVES ...............................................................................7
2.5 RECOMMENDED USE ..............................................................................................................7
2.6 NON-RECOMMENDED USE.....................................................................................................7
2.7 CE-MARKING.............................................................................................................................7
3. STORAGE AND TRANSPORT ..............................................................................8
3.1 ON RECEIPT..............................................................................................................................8
3.2 STORAGE..................................................................................................................................8
3.3 UNPACKING ..............................................................................................................................8
3.4 TRANSPORT..............................................................................................................................8
3.5 TAKING THE SYSTEM OUT OF USE TEMPORARILY............................................................8
4. GENERAL SYSTEM DESCRIPTION .....................................................................9
4.1 SYSTEM OVERVIEW ................................................................................................................9
4.2 DISINFECTION REACTOR........................................................................................................10
4.2.1 UV reactor...........................................................................................................................10
4.2.2 UV lamps.............................................................................................................................10
4.2.3 UV sensor ...........................................................................................................................11
4.2.4 Temperature sensor............................................................................................................11
4.2.5 Automatic wiping.................................................................................................................12
4.2.6 Water leak detector.............................................................................................................12
4.2.7 Relay for solenoid valve......................................................................................................12
4.3 CONTROL CABINETS...............................................................................................................13
4.3.1 Main configuration and display ...........................................................................................13
4.4 DIVERT VALVES .......................................................................................................................13
4.4.1 Single valve mode...............................................................................................................13
4.4.2 Multi-valve mode.................................................................................................................13
4.4.3 Divert valve location............................................................................................................14
4.5 ACCESSORIES..........................................................................................................................14
5. CONTROL SYSTEM DESCRIPTION AND OPERATION......................................15
5.1 FUNCTIONS OF THE CONTROL SYSTEM..............................................................................15
5.1.1 Access to the control software............................................................................................15
5.2 OVERVIEW SCREEN ................................................................................................................16
5.3 REACTOR SCREEN..................................................................................................................18

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5.4 CONTROL CABINET CONNECTIONS......................................................................................19
5.5 INSTALLATION AND PREPARING FOR OPERATION............................................................21
5.5.1 General ...............................................................................................................................21
5.5.2 Mechanical installation........................................................................................................21
5.5.3 Electrical installation ...........................................................................................................21
5.5.4 Preparing for operation.......................................................................................................22
5.6 OPERATION...............................................................................................................................23
5.6.1 Switching on and off............................................................................................................23
5.6.2 Automatic cleaning system.................................................................................................23
5.7 REMOTE CONTROL EVENT SEQUENCES.............................................................................24
5.7.1 Single valve mode...............................................................................................................24
5.7.2 Multi-valve mode.................................................................................................................24
5.8 WARNINGS AND TRIPS............................................................................................................26
5.8.1 Alarms screen.....................................................................................................................26
5.8.2 Resetting the system ..........................................................................................................26
5.8.3 Alarm log.............................................................................................................................26
5.9 SETTINGS..................................................................................................................................27
5.10 TROUBLESHOOTING ...............................................................................................................31
5.10.1 Alarms.................................................................................................................................31
5.10.2 Malfunctions of the temperature sensor .............................................................................32
5.10.3 Other troubleshooting .........................................................................................................33
5.11 REPORTING DATA....................................................................................................................34
5.11.1 Database records................................................................................................................34
5.11.2 Backing-up data..................................................................................................................34
5.11.3 Replacing the memory card................................................................................................34
5.11.4 Generating reports..............................................................................................................35
5.11.5 Exporting reports.................................................................................................................35
6. MAINTENANCE OF THE REACTOR AND THE CONTROL CABINETS..............36
6.1 CLEANING THE QUARTZ SLEEVES........................................................................................36
6.1.1 General ...............................................................................................................................36
6.1.2 Chemical cleaning method..................................................................................................36
6.2 CLEANING THE UV SENSOR AND QUARTZ WINDOW .........................................................36
6.2.1 Cleaning procedure.............................................................................................................37
6.3 MAINTENANCE OF THE AUTOMATIC CLEANING MECHANISM..........................................39
6.3.1 Introduction and safety aspects..........................................................................................39
6.3.2 Wiper replacement procedure.............................................................................................39
6.4 VENTILATION OF THE CONTROL CABINET ..........................................................................41
6.5 EARTH LEAKAGE CIRCUIT BREAKER CHECK......................................................................41
6.6 CLEAN-IN-PLACE......................................................................................................................41
7. REPLACING LAMPS AND QUARTZ SLEEVES ...................................................42
7.1 SAFETY PRECAUTIONS...........................................................................................................42
7.2 MAIN REPLACEMENT PROCEDURE ......................................................................................43
7.2.1 Resetting the service history...............................................................................................48
7.3 REMOVING QUARTZ SLEEVES WITH THE JUPITO ..............................................................49
8. DISPOSAL..............................................................................................................51
8.1 GENERAL...................................................................................................................................51
8.2 RETURNING OLD LAMPS.........................................................................................................51

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1. INTRODUCTION
1.1 GENERAL
The objective of this manual is to explain clearly to
users the installation and operation of the PureLine M
water treatment system.
Users are advised to study this manual carefully –
chapter 2 in particular is important in helping to ensure
user safety.
The people that work with the systems are expected to
have sufficient in-depth knowledge of the applied
techniques and a thorough command of the operating
instructions and to be aware of the possible dangers
and risks.
1.2 SYSTEM OVERVIEW
The PureLine M water treatment system has been
developed to create ‘pasteurised equivalent water’ to
be used in the manufacture of dairy food and drink
products. The system is designed to comply with the
requirements of the Grade “A” Pasteurised Milk Ordi-
nance (PMO) issued by the United States Department
of Health and Human Services.
The system exposes the water to ultraviolet (UV) light
which deactivates germs, viruses, bacteria, spores,
fungi, algae and other micro-organisms quickly and
safely. For this purpose, a number of UV lamps are
placed in the liquid flow within a stainless steel reactor
to deliver a known UV dose within the normal process
ranges of flow rate and UV transmittance.
The system is powered and controlled via a separate
control panel. The control computer within this panel
continuously records the system’s status and operat-
ing parameters in a secure database which is stored in
the hard drive of the control computer, and backed-up
regularly to a separate memory card. A separate soft-
ware application (Crystal Reports v14) allows reports
to be generated from the stored system data. The
computer communicates using Ethernet with a
touchscreen display through which the user can con-
trol and monitor the system.
The control panel also sends a signal to operate a
divert valve if a PMO non-compliance occurs, to pre-
vent untreated water from entering the process. The
water is either run to drain or recirculated until the non-
compliance is resolved.
1.3 DOCUMENTS
In addition to this user manual, the following docu-
ments are included:
CE-declaration
Certificate of quality
Implementation card
Product specific technical user manual, including:
oElectrical circuit diagrams
oMechanical drawings
oDrawing of the lamp configuration
oSpare parts list
Unless stated otherwise, this user manual is valid for
the systems that are indicated on the front page.
Wherever system differences are relevant, this will be
mentioned additionally.
The manual is based on current developments in UV
technology. The supplier shall retain the right to make
amendments to the documentation without being
obliged to modify preceding versions.
Store this manual carefully for future use.
Attention
The pictures and drawings in this manual may deviate
in detail or may be a mirror image of the actual situa-
tion.
Most photographs are taken in laboratory circum-
stances or on work benches.

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1.4 TEXT CONVENTIONS
The following terms are used to draw additional atten-
tion to specific sections of the text:
Tip
Suggestions and advice for carrying out specific tasks
more easily or practically.
Attention
This remark is placed next to the text to draw the us-
er’s attention to possible problems.
Caution
If procedures are not carried out with due care and
attention, the system can be damaged.
Warning
If procedures are not carried out carefully, the user or
other persons could be injured or the system could be
seriously damaged.
The following symbols are used in this manual:
Summary of a number of options:
Option 1
Option 2
...
Action to be carried out:
Step 1
Step 2
...

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2. SAFETY
2.1 GENERAL
The UV system is built for easy and efficient operation.
Users should nevertheless take proper note of the
remarks accompanying the text in this manual and act
accordingly.
Persons working on or in the direct vicinity of the sys-
tem must be familiar with these instructions.
In addition to the instructions in this manual, generally
applicable safety rules and regulations must be ob-
served at all times.
2.2 PICTOGRAMS AND GENERAL
SAFETY INSTRUCTIONS
For using the UV system, the following pictograms and
safety instructions are important:
Wear safety glasses to prevent eye
injuries from ultraviolet light.
Do not look directly into a UV lamp that
is switched on.
Do not unnecessarily expose your skin
to UV radiation.
Wear clean gloves free of talc powder
and grease when handling the lamps.
If you do have to hold the lamps, do so
by the connectors.
Remember UV lamps remain hot for a
considerable time after they have been
turned off.
Allow the lamps to cool off after use for
at least 15 minutes.
The disinfection reactor and the control
unit have to be wired to an earth leak-
age circuit breaker with sufficient ca-
pacity.
Switch the power supply off before car-
rying out repair work and maintenance.
Take account of the fact that there is
inadequate disinfection if the lamps are
not up to temperature or if the lamps
have been switched off
Also: general safety symbol.
The UV lamps contain mercury.
Take defective lamps to a depot for
chemical waste.
See section 2.4 for details of what to do
if a lamp breaks.
Do not dispose of old lamps as unsort-
ed municipal waste.
The following points of attention should also be taken
into account:
Keep your work area clean and tidy and make
sure it is properly illuminated.
Keep control cabinets closed during normal use.
Only use original Hanovia parts.
Carry out proper maintenance on a regular basis.
Read the maintenance instructions in chapter 6
and 7.

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2.3 SYSTEM SAFETY FEATURES
The UV system is fitted with the following safety fea-
tures:
Effective protection against the UV radiation pro-
duced by the lamps.
Safeguards to prevent the lamps and the power
supply cabinet from overheating.
Quality control of the UV lamps in order to monitor
the liquid disinfection process.
The following safety stickers have been placed on the
system:
Location:
End closure of the UV reactor
Location:
Outside the control cabinet(s)
Warning
Replace stickers if they are damaged or lost.

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2.4 BROKEN LAMPS OR QUARTZ
SLEEVES
The UV lamps contain a small amount of mercury. If a
lamp breaks, the mercury has to be collected by bind-
ing it with sulphur powder. Carefully remove the mer-
cury after collecting it.
If necessary, defective or burnt-out lamps can be sent
back to the system supplier.
Warning
Avoid contact with the skin and eyes, do not breathe
in any vapours and make sure there is sufficient ven-
tilation.
Warning
Take the mercury to a depot for chemi-
cal waste in accordance with local regu-
lations.
If one of the quartz sleeves breaks:
Shut off the liquid supply pipes immediately and
switch the system off (if this is not done automati-
cally).
Open the UV reactor as described in chapter 6
and 7. Remove all fragments and other lamp
parts (wear suitable protective clothing and use
any protective means necessary.).
Carefully rinse the reactor with clean water and
make sure that no dirt or cleansing agent residue
gets into the water.
Replace any defective components.
Only switch on the system after the reactor has
been completely filled with water again (consult
the start-up procedure in section 5.6.1).
2.5 RECOMMENDED USE
The system is designed for disinfecting UV per-
meable liquids such as waste water, drinking wa-
ter and process water (see technical data sheet).
For other applications it is advisable to contact
your supplier’s representative.
There are restrictions when using liquids, which
have high concentrations of dissolved minerals or
salts. High concentrations of these substances
can cause corrosion of metal components. Con-
tact your supplier for further information.
A high concentration of particulates in the medium
can cause excess wear. Contact your supplier for
further information.
The system may only be used in the configuration
described in this document.
2.6 NON-RECOMMENDED USE
The system should never, under any circum-
stances whatsoever, be switched on if it is not
completely built into the adjoining pipework. The
UV lamps must be shielded at all times to prevent
harmful UV radiation.
Do not remove plugs or other components which
allow any UV radiation to be emitted to the out-
side.
Consult your supplier representative before using
transparent pipework systems.
Mechanical modifications to the system, such as
drilling holes or welding on parts can damage the
system.
2.7 CE-MARKING
The system complies with the EU Directive for ma-
chine safety. The respective CE declaration is sup-
plied separately with the system. An example is shown
in the appendix at the back of this manual.

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3. STORAGE AND TRANSPORT
3.1 ON RECEIPT
Check the goods on receipt for signs of transport
damage. Report any such cases directly to the carrier
and your supplier. Take photographs of any damage
and store the packaging for inspection.
3.2 STORAGE
If you do not intend to install the system immediately, it
is advisable to store the components in their original
packaging. Avoid jolts and excessive vibrations.
UV lamps must always be stored in the original pack-
aging.
The storage area must meet the following require-
ments:
Atmospheric humidity : 10 – 80% RH
Temperature : 10 – 30°C
3.3 UNPACKING
Read any instructions and warning messages that
may be attached to the packaging. Even though they
are packed separately, please bear in mind that the
lamps are fragile and should be handled with care.
Keep the lamps in their individual original packaging
until they are to be installed in the reactor.
Check that your delivery is complete from the packer’s
receipt. Report any parts that are missing directly to
the carrier and your supplier.
When the system is shipped, the UV lamps are
packed separately from the UV reactor. The lamps
should only be fitted after the installation has been
completed mechanically and electrically and connect-
ed up. The procedure for fitting the lamps is described
in chapter 7.
3.4 TRANSPORT
If internal transport of the system is necessary, make
sure that:
the UV lamps have been removed and that they
are stored in their original packaging;
the system has been completely disconnected
from the electricity mains;
the system is clean and dry;
all the components are suitably protected against
external contaminants and damage.
3.5 TAKING THE SYSTEM OUT OF USE
TEMPORARILY
If the system is taken out of use temporarily, it is im-
portant to flush the system with clean water so that no
sand, salts or other corrosive materials remain behind
in the system. Leave the system in a dry state.
Dissolved and non-dissolved particulates (such as
minerals) may affect the high-grade stainless steel if
the medium is stagnant.

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4. GENERAL SYSTEM DESCRIP-
TION
4.1 SYSTEM OVERVIEW
Figure 1 illustrates the main aspects of the construc-
tion of the system. The diagram shows all possible
applicable options. The actual situation can vary from
the diagram depending on the application, the type of
control system and the size of the reactor.
Figure 1: General system configuration

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For detailed information, please see section 4.2 (Disin-
fection reactor) and section 4.3 (Power supply and
control).
A number of tools are also available for manually test-
ing the lamps and removing the quartz sleeves. These
are described in section 4.5.
A divert valve is required to ensure compliance with
the PMO. This is discussed further in section 4.4.
The control system is described in section 5.
4.2 DISINFECTION REACTOR
The disinfection reactor consists of the components
that are described in the following sections.
4.2.1 UV reactor
The reactor is the main component of the UV system.
On all types the liquid in and out connections are in
line. The UV lamps are housed in the horizontally
drawn tube segment (perpendicular to the liquid direc-
tion); the lamps are fitted between two internal flanges.
An automatic wiping mechanism and the temperature
sensor are also located on the inside walls. The hori-
zontal tube segment is covered on both sides with a
sealing plate.
Equipment is also present in the reactor as standard to
vent and drain the system, and also for the lead
through of the electrical connections.
The size and the design of the reactor depend on the
required disinfection capacity and the nature of the
liquid.
Figure 2: UV reactor
4.2.2 UV lamps
The number and type of UV lamps built into the sys-
tem depend on the system size and the nature of the
liquid that has to be disinfected.
The lamps are placed in quartz sleeves (see Figure 3)
and therefore do not come into direct contact with the
liquid. They can be fitted from either flange. This has
to be done according to a strict procedure. See chap-
ter 7 for further instructions.
After switching the lamps on, it can take 1 to 5 minutes
before the full UV intensity is reached.
Figure 3: UV lamps
The life span of the lamps will be drastically reduced if
they are repeatedly switched on and off. This results in
decreasing UV intensity. Any contaminants on the
quartz sleeves also lead to reduced UV output.
Caution
To avoid damaging the UV lamps, never touch them
with your bare hands.
Warning
Remember that a lamp that has just been switched
off will be extremely hot.
Warning
The UV lamps contain a small amount of mercury.
See section 2.4 for what to do with broken lamps.

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4.2.3 UV sensor
A UV sensor (see Figure 4) is fitted as standard on the
steel reactor and this measures the UV intensity of the
UV lamps at a fixed point. This sensor sends infor-
mation to the control system so that the lamp power
level can be adjusted as soon as the lamp intensity
decreases, the quartz sleeve becomes dirty or the
quality of the liquid changes.
The UV sensor works within a measuring range of 240
– 300 nm.
All UV systems have been rated (sized) for a specific
end of lamp life UV output in combination with a de-
fined fouling of the quartz tubes. This UV intensity
reading is defined as 100% (at maximum power).
Figure 4: UV sensor
The UV sensor is factory-calibrated and does not need
to be recalibrated when lamps are replaced. However,
periodic cleaning is required (see section 6.2). In addi-
tion, a periodic (yearly) reference check is necessary.
In case of deviation, the sensor must be replaced.
4.2.4 Temperature sensor
The UV lamps produce a considerable amount of heat
that is removed if the flow rate of the liquid passing
through the system is sufficiently high. In order to
monitor the temperature of the liquid, a temperature
detector (type PT-100) is fitted in the system so that
unsafe situations can be prevented (see Figure 5).
As soon as the liquid temperature exceeds the pre-set
value (default value: 113°F), an alarm is given and the
system shuts down.
Figure 5: Temperature sensor
The system has the following hardware features in-
cluded.

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4.2.5 Automatic wiping
An automatic cleaning system is used to keep the
quartz sleeve clean by wiping the surface with a rub-
ber ring.
A threaded spindle and an electric motor operate the
wiper plate with the wiper rings. Two sensors located
on the outside of the reactor signal the end position of
the wiper plate.
The electric motor is mounted on the flange in the re-
actor by means of a number of wire ends (Figure 6)
and is protected by a sealing plate.
Figure 6: Motor of the automatic cleaning mechanism
4.2.6 Water leak detector
A water leak detector is fitted at each end of the UV
chamber, near the drain outlet (Figure 7). Water that
bridges the elements of the detector will generate an
alarm (section 5.9.1).
Figure 7: Water leak detector
4.2.7 Relay for solenoid valve
A solenoid valve can be placed in the drain plug con-
nector to enable the liquid in the reactor to be drained
by entering an electrical command signal.

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4.3 CONTROL CABINETS
4.3.1 Main configuration and display
The UV disinfection system is connected to a power
supply cabinet and a control unit. Depending on the
size of the system and specific customer requirements,
a combined cabinet can be supplied.
The cabinets are fitted with the following components:
The main switch:
This switch, fitted to the door of the cabinet, switches
the whole system on and off.
Cabinet ventilators:
These remove the heat produced by the lamp power
supplies.
Control panel:
Operation of the system and control of the disinfecting
process can be achieved by the use of a touch screen
control panel. The panel is fitted on the front of the
control cabinet. The system can also be controlled
remotely via a SCADA system. Refer to chapter 5 for
more information.
Figure 8: Touch screen control panel display
4.4 DIVERT VALVES
4.4.1 Single valve mode
To ensure compliance with the requirements of the
PMO, a divert valve must be installed downstream
from the UV reactor and be controlled by the plant’s
control system. This valve is used to prevent water
from entering the process if one of the following events
occurs:
Lamp fault
UV/flow/transmittance sensor input fault
Low UV dose
UV transmittance below a minimum level
Flow rate outside set limits
Any trip
If one of these events occurs, the UV system will send
a signal to the plant’s control system to operate the
divert valve. The UV system then waits a specified
time period (selected by the user), and then checks
that the valve has operated correctly. The UV system
will then be switched off if it has not already tripped.
Refer to section 5.6.3 for further information.
4.4.2 Multi-valve mode
In addition to signalling for a single divert valve to pre-
vent the water running to process, the PureLine M
system can automatically control three additional
valves in a water recirculation system. These valves
have the following functions:
Sending water to drain.
Recirculating water back through the UV chamber
via a heat exchanger.
Switching on the cold water system to the heat
exchanger for cooling the recirculated water.
The recirculating pump for the cold water system is
also controlled by the software.
The recirculation system can be used to prepare disin-
fected water before it is needed by operating the UV
system with the divert valve closed. A signal from the
plant’s control system causes the clean water to be
sent to process by opening the divert valve.
If a non-compliance occurs, then the system switches
back to recirculation mode and switches off the UV
system if it has not already tripped.
Refer to section 5.6.4 for further information.

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4.4.3 Divert valve location
The divert valve must be supplied by the customer and
should be installed at a point downstream that gives
sufficient time for the valve to operate before any wa-
ter that was in the reactor when the fault occurred
passes into process.
The distance required between the divert valve and
the reactor, D, can be calculated using the following
equation (refer to Figure 9):
)( vs tt
A
F
D+×






=
where
F = water flow rate in m3/s (divide the value in m3/h by
3600)
A = cross-sectional area of pipe in m2
ts= time for software to send signal to valve (≈1 sec-
ond)
tv= time required for valve to close in seconds
Figure 9: Location of divert valve
Attention
The PMO requires that the divert valve is fail-safe,
that is, it will close in the event of a p
ower failure to
stop water passing untreated through the UV reactor
and into process.
4.5 ACCESSORIES
The following additional accessories are available:
Lamp tester:
The lamp tester gives a high-voltage pulse that can be
used to test the working of the lamps. The tester works
with a 9 V-battery and generates a safe pulse of
3.000 V / 1 μA / 160 KHz.
Figure 10: Lamp tester
Jupito:
The Jupito is a mechanical aid for easily removing the
quartz sleeves that reduces the risk of damage. The
device can be extremely useful especially when the
sleeves are stuck because of dirt and contaminants.
The use of the Jupito is described in section 7.3.
Figure 11: Jupito

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5. CONTROL SYSTEM DESCRIP-
TION AND OPERATION
5.1 FUNCTIONS OF THE CONTROL
SYSTEM
The UV system control system enables the process to
be monitored and controlled either remotely via a
SCADA connection or locally using a touchscreen
display on the control panel. The system also controls
the operation of a divert valve to prevent any water
that has not been treated properly from entering the
process. Finally, a database stores the essential oper-
ating data at 5-second intervals, and a separate appli-
cation allows reports on system performance to be
generated as required.
In the event of a power failure, an integrated battery
will power the control system for at least 20 minutes to
allow the control panel to operate and data logging to
continue (the UV reactor will not operate).
The control software features a number of screens for
configuring system settings, and two control screens
from which to monitor and control the process, Over-
view and UV Reactor. These various screens are
described in the following sections.
5.1.1 Access to the control software
There are four levels of access to the software, under
the following user names: Guest, Operator, Secure
and Maintenance.
Guest: the software defaults to this user level
after 15 minutes of inactivity. The Guest user only
permits screens to be viewed; no control func-
tions are available.
Operator: this user level allows the lamps to be
switched on and off, alarms to be acknowledged
and wipe cycles to be performed.
Secure: this user level allows alarms to be reset,
usage data to be cleared, and a limited range of
settings to be configured.
Maintenance: this user level permits access to all
system settings and features (not for customer
use).
The stars under the toolbar indicate which user level is
currently logged in to the system (Operator = 1, Se-
cure = 2, Maintenance = 3).
To log in to the system:
Press the Log In button.
Enter the required user name and password and
press OK:
Guest: no password
Oper (Operator): 1
Secure: 2
Maint (Maintenance): manufacturer use
only
Touch the user name or password text box to
display the on-screen keyboard.
Warning
Changing certain system parameters can lead to in-
sufficient disinfection levels or malfunctioning of the
entire system, and may prevent the minimum PMO
performance requirements being met.
The configuration of the system should only be
changed by personnel who are fully aware of the im-
plications of the changes.

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5.2 OVERVIEW SCREEN
Figure 12: Overview screen (single valve mode)
The Overview screen displays the status of the water treatment process stream, comprising the UV reactor and
the divert valve. The functions of the Overview screen features and buttons are:
Element
Description
UV
REACTOR
The picture of the reactor on the screen is coloured depending on whether the system is operat-
ing normally (green), has a non-critical warning (amber) or has tripped (flashing red).
FLOW
The value from the flow sensor (if fitted) is displayed.
DIVERT
VALVE
The divert valve is shown as in Figure 12 if it is open, when the system is operating as required
and the treated water is directed to process. If the valve is shown crossed out
, the operation is
non-compliant with the PMO requirements and the valve has closed to
prevent the water going
to process.
LOG IN/OUT
Press this button to either log in as one of the standard users, or log out to the Guest user. See
section 5.1.1 for further details.
TREND
Displays a graph of the essential system parameters logged in the database plotted against
time and date. Use the buttons to move around the graph and change the scale.
ALARM LOG
Displays a log of the alarms recorded in the system database (section 5.7.3).
ALARMS
Displays a list of active alarms which flash while they are active, and remain on the screen until
they are resolved (section 5.7.1). The most recent of these alarms can also be seen at the bot-
tom of the main screen, where they can be acknowledged.
TOOLS
Allows the software application to be shut down (Maintenance user only).
REMOTE /
LOCAL
Remote mode enables fully automatic control of the system via SCADA. Local mode allows the
system to be controlled from the touchscreen (depending on the user’s access level).
REACTOR
ON / OFF
Switches the lamps on and off. Only available in Local mode.

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Element
Description
ALARM
RESET
Resets the system from a trip after the cause has been resolved. Only Secure and Maintenance
users can operate this button.
OPERATOR
COMMENTS
Used to record any comments required. These are saved in the system database and will ap-
pear as a sub-report in the footer of the main report. Touch the text box to display the on-
screen
keyboard.
OVERVIEW
SETTINGS
Allows a range of system settings to be configured (section 5.8).
If the system is in multi-valve mode, then the Overview screen displays the additional components that are con-
trolled by the software, as shown in Figure 13.
Figure 13: Overview screen (multi-valve mode)
Element
Description
DIVERT
VALVE
The main divert valve to prevent the treated water running to process. If the valve is shown
crossed out, the operation is non-
compliant with the PMO requirements and the valve has
closed
to prevent the water going to process.
DRAIN
VALVE
A valve to send the treated water to drain.
RECIRC
VALVE
A valve to recirculate water through the UV chamber after cooling with a heat exchanger.
CWS VALVE
A valve to switch on the cooling water to the heat exchanger.
RECIRC
PUMP
A pump to recirculate water through the UV chamber.

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5.3 REACTOR SCREEN
Figure 14: Reactor screen
The Reactor screen gives more information about the UV system and allows the lamps and wiper to be controlled
(if the software is operating under the Secure or Maintenance user). The functions of the screen features and
buttons (ignoring those which are also shown on the Overview screen) are:
Element
Description
UV REACTOR
The table beneath the reactor displays the measured UV intensity and the power output from
each ballast (expressed as a percentage of the maximum power).
MANUAL WIPE
Only available in Local mode. Performs an immediate wiping operation (this does not affect
the automatic wiper interval).
LAMP / WIPER
Allows control of the wiper and individual lamps and reports their usage data (section 5.6.1).
REACTOR
SETTINGS
Allows system settings to be configured (section 5.8).