ELGA PURELAB Pulse 1 / 2 - US User manual

PURELAB Pulse 1 / 2 - US
Operator Manual

ELGA PURELAB Pulse 1/2 US Operator Manual
PURELAB Pulse 1/2 US MANU40563 Version 2 02/16 Page i
Copyright Note
The information contained in this document is the property of VWS (UK) Ltd.
and is supplied without liability for errors or omissions.
No part of this document may be reproduced or used except as authorized by
contract or other written permission from VWS (UK) Ltd. The copyright and all
restrictions on reproduction and use apply to all media in which this information
may be placed.
VWS (UK) Ltd. pursue a policy of continual product improvement and reserve
the right to alter without notice the specification, design, price or conditions of
supply of any product or service.
ELGA LabWater is a trading name of VWS (UK) Ltd.
ELGA®is the global laboratory water brand name of Veolia Water.
ELGA®, PURELAB®, MEDICA® and CENTRA® are trademarks of ELGA
LabWater.
Minncare is a trademark of Minntech Corporation.
EfferSan™ is a trademark of Activon Inc.
© VWS (UK) Ltd. 2014
All rights reserved.
Publication ref: MANU40563
Version 2 –02/16

PURELAB Pulse 1/2 US Operator Manual ELGA
Page ii PURELAB Pulse 1/2 MANU40563 Version 2 02/16
TABLE OF CONTENTS
1. INTRODUCTION.................................................................... 1
1.1 Health & Safety.........................................................1
1.2 Product Range..........................................................1
1.3 Use of this Manual....................................................1
1.4 Environment..............................................................1
1.5 Customer Support.....................................................1
2. CONSUMABLES AND ACCESSORIES................................ 2
3. PRODUCT AND PROCESS DESCRIPTION ......................... 3
3.1 Product Description...................................................3
3.2 Process Description..................................................4
4. CONTROLS........................................................................... 6
5. INSTALLATION INSTRUCTIONS .........................................7
5.1 Unpacking the PURELAB Pulse................................7
5.2 Locating the PURELAB Pulse...................................7
5.3 Connecting up the PURELAB Pulse..........................9
5.4 Initial Controller Set Up...........................................12
5.5 Initial Start Up.........................................................16
6. OPERATION........................................................................ 17
6.1 Intermittent Mode....................................................17
6.2 Alarm Conditions.....................................................17
7. MAINTENANCE................................................................... 19
7.1 Replacing the LC140 Pre-treatment Cartridge.........20
7.2 Replacing the LC178 Conditioning Cartridge Pack..21
7.3 Replacing the Ultraviolet Lamp (LC105)..................22
7.4 Removing and Re-fitting the LC142 “Pulse” Module22
7.5 Cleaning the Inlet Strainer.......................................22
7.6 Cleaning the Re-Circulation Strainer.......................24
7.7 Replacement of LC143 Reverse Osmosis Cartridge24
8. SANITIZATION PROCEDURES.......................................... 25
8.1 Liquid sanitization ...................................................25
8.2 Tablet sanitization...................................................27
8.2.1 EfferSan™Sanitization Tablet - Safety Information 28
9. TROUBLE SHOOTING........................................................ 29
10. KEY TO CONTROL PANEL................................................ 30
10.1 Icons.......................................................................30
10.2 Alarm Conditions.....................................................30
10.3 Replacement Timers...............................................30
10.4 Low Level, Quality and Standby Alarms..................31
11. HEALTH AND SAFETY NOTES.......................................... 32
11.1 Electricity ................................................................32
11.2 Pressure .................................................................32
11.3 Ultra-Violet Light .....................................................32
11.4 Sanitization Chemicals............................................33

ELGA PURELAB Pulse 1/2 US Operator Manual
PURELAB Pulse 1/2 US MANU40563 Version 2 02/16 Page iii
11.5 Control of Substances Hazardous to Health (COSHH)33
12. TECHNICAL SPECIFICATIONS..........................................34
13. USEFUL CONTACT DETAILS.............................................38

ELGA PURELAB Pulse 1/2 US Operator Manual
PURELAB Pulse 1/2 US MANU40563 Version 2 02/16 Page 1
1. INTRODUCTION
1.1 Health & Safety
Please ensure you have read the Health & Safety notes in Section 11
before commencing.
1.2 Product Range
This Operator Manual has been prepared for the PURELAB Pulse
product models.
PURELAB Pulse 1 US
PURELAB Pulse 1 BP US (with boost pump)
PURELAB Pulse 2 US
PURELAB Pulse 2 BP US (with boost pump)
1.3 Use of this Manual
This manual contains full details on installation, commissioning and
operation of the PURELAB Pulse unit. If this unit is used contrary to the
instructions in this handbook, then the safety of the user may be
compromised.
1.4 Environment
The PURELAB Pulse should be installed on a flat, level surface, in a
clean, dry environment. The unit can also be wall mounted against a
vertical wall capable of supporting the weight for this we recommend the
use of the wall mounting kit.
1.5 Customer Support
Service support and consumable items are available from your local
supplier or distributor. Refer to customer service contact details shown at
the end of this publication.
PURELAB Pulse

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Page 2 PURELAB Pulse 1/2 US MANU40563 Version 2 02/16
2. CONSUMABLES AND ACCESSORIES
Consumable
Max.
Service Life*
Max.
Shelf Life
LC140 (Pre-treatment cartridge)
6 months
2 years
LC143 (Reverse Osmosis cartridge
module)
Typical life
2-3 years
2 years
LC178 (Conditioning Cartridge Pack)
6 months max.**
2 years
LC105 (UV lamp)
12 months
Indefinite
LC142 (Pulse module)
4-5 years
2 years
LC145 (POU Filter)
6 months
5 years
LC136*** (Composite Vent Filter)
6-months
2 years
LC123****(Pre-treatment Filter)
6-months
2 years
* Life is an estimate only, and will depend on the application
and feed water quality. Care should be taken to order the
correct consumable items.
** Replacement frequency of the LC178 Conditioning Cartridge
pack is affected by the feed water hardness and total water
usage. A guide to setting up water hardness settings can be
found in section 5.4 “Initial Controller Set Up”.
*** Required for reservoirs (LA611, LA612, LA613 and LA737).
**** Required for optional pre-treatment filter housing (LA518).
Accessory
Cat No
Installation kit
LA513
Installation kit (with saddle valve)
LA506
Pressure regulator valve (inlet)
LA512
Pre-treatment filter housing (non boost pump models)
LA518
Pre-filter (boost pump models fitted)
LA582
RO Boost Pump Kit
LA609
Wall mounting kit –Small Box Products
LA610
Wall mounting kit –Small Box Products (partitioned walls)
LA622
Docking vessel –DV25 (recommended)
LA737
25 liter reservoir
LA611
40 liter reservoir
LA612
75 liter reservoir
LA613
Wall mounting kit (25 & 40 liter reservoir)
LA591
Wall mounting kit (75 liter reservoir)
LA592
RS232 Printer kit
LA618
Flow upgrade kit –Pulse 1 to Pulse 2
LA605
Remote dispense valve
LA521
Chlorine test kit
TEST30679

ELGA PURELAB Pulse 1/2 US Operator Manual
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3. PRODUCT AND PROCESS
DESCRIPTION
3.1 Product Description
The PURELAB Pulse water purification unit has been specifically
designed to provide a supply of high purity water suitable for general
laboratory use.
The PURELAB Pulse can be bench or wall mounted and an optional wall
mounting kit is available. A range of accessories are available to
complement the unit. (See Section 2 - Consumables and Accessories, for
detail).
Power Switch
ON/OFF
Mains
Power
Socket
Fuse
Feedwater Inlet
Connection
Removeable Cover
Control Panel
Door
Alternative Dispense
Tap Position
Sanitization Port
Removable
Cover
Dispense Tap
PURELAB Pulse

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Page 4 PURELAB Pulse 1/2 US MANU40563 Version 2 02/16
3.2 Process Description
The PURELAB Pulse process links three purification technologies,
Reverse Osmosis, Electro-Deionization and Photo Oxidation and
incorporates a re-circulation pump and an optional RO feed water boost
pump.
The unit is designed to operate from a good quality potable water supply,
and produces up to 10 or 20 liters per hour of purified reverse osmosis
grade water which is further purified and circulated through a reservoir.
A graphics screen displays the system status and provides control by
means of three function buttons.
The water is processed and treated by the PURELAB Pulse unit as
follows:
Potable water enters through a strainer and inlet solenoid valve,
at either regulated mains water pressure, or is pumped by
means of a feed water pump (optional), and passes through the
pre-treatment cartridge. The pre-treatment cartridge has been
designed to protect the reverse osmosis cartridges from
particulate/colloidal matter and excessive free chlorine, which
may be present in the incoming feedwater.
The pre-treated water then passes the sanitization port and
through one or two reverse osmosis cartridges, set up in series,
which split the flow into permeate and concentrate streams. The
permeate water is further purified whilst the waste concentrate
stream is passed to drain.
The permeate water then passes though a line cell which
measures the conductivity of the water.
The permeate water passes through the conditioning cartridge
which removes traces of hardness remaining in the water.
The permeate water is drawn into the main re-circulation stream
by the re-circulation pump together with water from the
reservoir and passes through the re-circulation purification loop.
This water is pumped directly through the UV chamber where it
is exposed to intense UV radiation to provide continuous
bacterial control by photo oxidation and to promote the
cleavage of organic molecules.
The water then passes through the Pulse electrical
ion-exchange module which removes inorganic and organic
impurities.
Waste water from the Pulse module is passed to the drain.
Finally the water is passed through a:
Water quality sensor which measures the resistivity of the
water.
Temperature sensor which provides accurate temperature
measurement.
The deionised water is either dispensed through a dispense
tap, or continues within the re-circulation circuit to the reservoir.
An optional point of use 0.2µm bacterial filter can be fitted to the
dispense tap for added protection.
During periods of non-use the unit will automatically operate in
intermittent re-circulation mode to maintain water purity with
maximum efficiency.
If the level of water in the reservoir is below 10% (or 40% on
start up) the re-circulation mode will be disabled until a level of
70% is reached. The re-circulation will restart automatically.
When the make-up starts, there is an initial 15 minute flush
period prior to water being passed to the recirculation circuit.

ELGA PURELAB Pulse 1/2 US Operator Manual
PURELAB Pulse 1/2 US MANU40563 Version 2 02/16 Page 5
After power off or conditioning cartridge exchange this time
period is increased to 1 hour.
Water quality
sensor
Outlet
Outlet
Drain
Drain
Reverse
Osmosis
LC143
Inlet
Inlet
Concentrate
Drain
Strainer
Solenoid
Boost Pump
(optional)
Portable Water
Inlet
Pre-treatment
LC140
Flow
Controller
Conditioning
Cartridge
LC178
Purified
Water
Reservoir /
Docking Vessel
Reverse
Osmosis
LC143
NRV
Dispense
Tap
Flow
Switch
Temp
Sensor
Water Quality
Sensor
Water Quality
Sensor
Outlet to
Reservoir
Pulse
Module
LC142
Strainer
Recirculation
Pump
NRV
NRV
UV
LC105
Solenoid
Process Flow - PURELAB Pulse

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4. CONTROLS
The PURELAB Pulse operates with a simple tactile membrane touch
pad control panel which has a graphics display window and three
program function control buttons.
Details of how to use the controls will be given in the appropriate
sections.
Control Button
Function
PROCESS
Turns the process ON/OFF.
The PURELAB Pulse control panel has a range of control icons as
follows:
Button
Icon
Description
LEFT
Menu
Scroll
RIGHT
Reset
Mute Alarm
Accept
Printer
Process button
Right hand
control button
Left hand
control button
Control Panel

ELGA PURELAB Pulse 1/2 US Operator Manual
PURELAB Pulse 1/2 US MANU40563 Version 2 02/16 Page 7
5. INSTALLATION INSTRUCTIONS
5.1 Unpacking the PURELAB Pulse
The following items should be supplied with your PURELAB Pulse
1. PURELAB Pulse unit
2. Conditioning cartridge pack LC178
3. By-pass block fitted in the unit
4. Installation kit (LA513 or LA506)
5. Operator manual
6. Mains lead
5.2 Locating the PURELAB Pulse
Before commencing with installation and operation of the PURELAB
Pulse unit, please read and observe the following points.
Environment
The unit should be installed on a flat, level surface, in a clean, dry
environment. The unit can also be wall mounted against a vertical
wall capable of supporting the weight (for this we recommend the
use of the wall mounting kit Part No LA 610).
CAUTION! If unit is to be wall mounted, ensure it is
mounted on a substantial brick or concrete
solid wall capable of supporting the operating
weight of the system. If mounting the unit on
the wall, use the wall mounting kit and follow
the instructions included in the kit.
Note: Refer to specifications for unit weights.
The unit is designed to operate safely under the following
conditions:
Indoor Use
Altitude up to 2000m
Temperature Range 5 - 40°C
Maximum Relative Humidity 80% @ 31°C decreasing
linearly to 50% @ 40°C Non-condensating
The unit is in Installation Category II, Pollution Degree 2, as per
IEC1010-1.
Rear mounting locations points
Unit Rear Mounting Points

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Electrical
The units can be connected universally to any electrical supply in
the range of 100 - 240V and 50 - 60Hz. The mains lead is supplied
with a molded plug on one end and a molded connector to the unit
on the other. The unit should be connected to an earth.
Drain
A semi rigid flexible connection to a sink or suitable drain capable
of handling at least 1 l/min is required. The drain point should have
a gravity fall below the level of the unit and any connections direct
to drain should have an air-break device fitted.
CAUTION! In common with other electrodeionisation
systems this unit produces small amounts of
hydrogen in the drain line. If this is allowed
to build up in a restricted environment this
could become a hazard.
Feed Water
The feed water should be of good quality and comply with
specifications provided. This should enter the unit via an 8mm
(5/16”) O/D semi rigid tube, and should be in the temperature
range 1 to 35°C.
CAUTION! Feedwater temperatures outside the range 1
to 35°C will cause damage to the PURELAB
Pulse unit.
For pressurized feeds, the minimum direct inlet pressure is 4.0 bar
(60 psi) and maximum inlet pressure is 6 bar (90 psi). Higher
feedwater pressures must be reduced using a pressure reducing
valve (Part No. LA 512).
Reservoir feeds to the PURELAB Pulse unit should be positioned
at the same height, or above the unit, to provide a positive flooded
inlet pressure.
PURELAB Pulse Unit Installed with Storage Reservoir / Docking Vessel
Feed Water Strainer
Mains power socket
Mains power lead
Fuse
ON/OFF
switch
Electrical Connections

ELGA PURELAB Pulse 1/2 US Operator Manual
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5.3 Connecting up the PURELAB Pulse
Once the PURELAB Pulse unit has been positioned either on a wall or
on a bench, it should be connected as follows:
Mains water inlet tube
RO drain
Pulse drain
Pump feed
Outlet to reservoir
Step 1 - Fitting Tubes
1. PUSH in collet on connector.
2. PULL out transit plug.
3. CUT a clean square end on an 8mm (5/16") OD
semi rigid drain tube.
4. PUSH tube into connector.
CAUTION! Do not restrict drain line.
CAUTION! If the water supply is at a pressure greater
than 6 bar (90 psi) fit a pressure regulator
(LA512).
Connector
Collet
Blanking
transit plug
Pull plug
Depress
collet
Clean square
cut end
Tube 8mm OD
Simply push in tube to attach
Tube in secured position
Fitting Tubes
Feed Water Inlet Connection
Feedwater Inlet Connections
Outlet to
reservoir
Pump feed
Drain
Drain
Recirculation and Drain Connections

PURELAB Pulse 1/2 US Operator Manual ELGA
Page 10 PURELAB Pulse 1/2 US MANU40563 Version 2 02/16
Step 2 - Connect Electrical Supply
1. PLUG mains lead into the socket on the left hand
side of the PURELAB Pulse unit.
2. PLUG mains lead into mains socket.
Step 3 - Connect High/Low Level Switch to Reservoir
1. INSERT jack plugs into the level control socket
located at the rear of unit and reservoir.
Mains power socket
Fuse
ON/OFF
switch
Mains power lead
Electrical Connections
Level control
Reservoir Level Connections

ELGA PURELAB Pulse 1/2 US Operator Manual
PURELAB Pulse 1/2 US MANU40563 Version 2 02/16 Page 11
Step 4 - Positioning Dispense Tap
The Dispense Tap may be fitted at a high level or a low level on
the PURELAB Pulse unit, to allow for easier access when wall
mounted.
To alter the location of the Dispense Tap:
1. Switch the PURELAB Pulse off at the power switch
at the top left hand side of the unit.
2. Ensure the water supply is turned off.
3. Dissipate pressure by opening the dispense tap.
4. Open the front door.
5. Remove the LC178 cartridge. (See Section 7.2).
6. Unscrew the two panel fixing screws located on the
right hand side of the door opening.
7. Remove side panel by sliding the panel to the rear.
Once unhooked, remove.
8. Remove screws holding dispense tap manifold.
9. Locate manifold in alternative position.
10. Replace panel.
11. Replace LC178 cartridge. (See Section 7.2).
12. Switch electrical power on.
13. Switch water supply on.
14. Press the process button.
15. Ensure correct operation of dispense tap.
Panel
fixing
screws
Manifold
screws
Slide back,
unhook and
remove side
panel
Removing side panel
Panel
fixing
screws
Manifold
screws
Replace
side panel
Replacing side panel
Positioning the Dispense Tap

PURELAB Pulse 1/2 US Operator Manual ELGA
Page 12 PURELAB Pulse 1/2 US MANU40563 Version 2 02/16
5.4 Initial Controller Set Up
The PURELAB Pulse control panel is fitted with three control
buttons. These are:
1. The PROCESS button, which switches the
purification process ON and OFF.
2. Two soft touch pad buttons, which are used to
control set-up and process control functions.
When the PURELAB Pulse unit is started for the first time after
installation the following steps should be followed to set up
system preferences:
Step 1 - Setting Up Menu Options
SWITCH the mains power on to initialize the controller hardware
set-up sequence.
Note: Always allow the initialization process to
complete. This is indicated by the
appearance of the MENU and
CALIBRATION icon on the control screen.
PRESS the MENU button to go to the next screen to activate the
set up menu sequence.
A series of set-up screens will now be displayed. Various control
icons are used to allow you to step through the set up instruction
process. These icons are:
a "scroll" icon indicated by an arrow
an "accept" icon indicated by a tick 
a "selection" icon indicated by a 
The screens and the order in which they appear are:
Step 2 –Auto / Manual Restart Screen
This allows the selection of the AUTO/MANUAL restart option. If
auto restart is selected the unit will automatically restart after a
power failure. In manual mode the unit will remain in standby.
Select the option required using the button and accept with
the button.
Step 3 - Audible Alarm Enabled/Disabled Screen
This display provides the option of either enabling the audible
alarm causing it to sound, or disabling the audible alarm causing
it to remain muted whilst it flashes the alarm icon. Select the
option required using the button and accept with the 
button.
Process button
Touch pad buttons
Menu
Start Up Screens
Auto Restart
Manual Restart
Auto / Manual Restart
Audible Alarm Enabled
Audible Alarm Disabled
Audible Alarm Enable / Disable

ELGA PURELAB Pulse 1/2 US Operator Manual
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Step 4 - Water Hardness Screen
This screen is used to instruct the controller of the inlet supply
water hardness. Three setting options are available. These low,
medium or high settings are shown as:
Display Settings
Feedwater Hardness
Low water hardness
Low
<150ppm CaCO3
<8.4°dH
<15°F
Medium water hardness
Medium
150-250ppm CaCO3
8.4-14.0°dH
15-25°F
High water hardness
High
250-350ppm CaCO3
14-19.7°dH
25-35°F
PRESS the button to set water hardness by moving the solid
cursor to your desired position setting. Press the icon
button to accept your preferred water hardness choice.
Step 5 - Water Purity Unit Setting
This screen enables the preferred water purity unit of measure
to either, M.cm or µS/cm. Once selected, all future water
purity measurements will be displayed with your unit of choice.
Select the option required using the button and accept with
the button.
Step 6 - Purity Alarm Setting
This screen will enable the setting of the value at which you want
the water purity alarm to activate.
If the M.cm water purity alarm unit setting was chosen, then the
following water purity alarm choices will be displayed.
10 M.cm 
5 M.cm 
1 M.cm 
If the µS/cm water purity alarm unit setting was chosen, then the
following water purity alarm choices will be displayed.
0.1 µS/cm 
0.2 µS/cm 
1.0 µS/cm 
Select the alarm setting required using the button and accept
with the button.
Note: To reset any of the set-up parameters,
restart from the set up MENU and follow
instructions from step 1.
Low
Medium
Hard
Water Hardness
MegaOhm
MicroSiemen
Water Purity Settings
MegaOhm
MicroSiemen
Purity Alarm Setting

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Page 14 PURELAB Pulse 1/2 US MANU40563 Version 2 02/16
Setting Up Display and Replacement Timers
Turn the unit off at the power inlet module. To enter the
replacement timer set up, press the left hand touch pad button
and at the same time turn the power on.
A graphic of the conditioning cartridge and clock graphic is
displayed with the water hardness setting on the display.
CAUTION! Before re-setting any of the cartridge timers,
ensure that the appropriate new cartridges
have been installed and secured correctly in
the PURELAB Pulse.
Step 1 - Conditioning Cartridge Timer
Setting this screen will cause the conditioning cartridge timer to
reset to a preset value determined by inlet water hardness.
Press to jump to the next consumable or to initiate reset.
Press to reset timer or press to abort reset.
Press to jump to the next consumable.
Water Hardness Default Replacement Settings in Hours
PURELAB Pulse 1
PURELAB Pulse 2
Soft
3600
1800
Average
2200
1100
Hard
1600
800
Follow the instructions to replace the conditioning cartridge Section 7.2
Step 2 - UV Lamp Replacement Timer
Setting this screen will cause the UV Lamp timer to reset to the
preset value of 8760 hours (1 year).
Press to jump to the next consumable or to initiate reset.
Press to reset timer or press to abort reset.
Press to jump to the next consumable.
Step 3 - Pre-treatment Cartridge Replacement Timer
Setting this screen will cause the Pre-treatment cartridge timer
to reset to the preset value of 4380 hours (6 months).
Press to jump to the next consumable or to initiate reset.
Press to reset timer or press to abort reset.
Press to jump to the next consumable.
Conditioning Cartridge Timer
Pre-treatment Cartridge Timer
UV Lamp Replacement Timer