Domino DPX3500 User manual

DPX3500
DPX3500
Product Manual

Domino
DPX Fume Extraction Systems. Operator’s Reference Guide
This manual, Domino Part No. EPT076596, has been produced for use in the maintenance and operation of the
Domino DPX Fume Extraction Systems.
© Domino Printing Sciences plc. 2022.
All rights reserved. No part of this publication may be reproduced, stored on a retrieval system, or transmitted in
any form, or by any means, electronic, mechanical, photocopying, recording or otherwise, without the prior
permission of Domino UK.
BOFA International Ltd are the manufacturer of this product.
Domino UK and the manufacturer BOFA International Ltd has a policy of continuous product improvement. The
Company, therefore, reserves the right to modify the specification contained in this manual without notice.
For sales and service assistance, please contact your local Domino Distributor, or:
Domino UK
Bar Hill
Cambridge CB23 8TU
United Kingdom
Tel: [phone]
Fax: [phone]
Amendment Record
Amendment
Date
1First release
March 2022

EPT076596 Issue 1 –March 2022
3
Preface
This reference guide, Domino Part No. EPT076596, is for use in the operation and maintenance of DPX fume
extraction systems by operators and to reinforce and complement any training program available with the
product. It is not designed to replace any such training program.
This reference guide is the official authority for the operation and maintenance of the DPX fume extraction
systems. It is the source document for all translated versions. It is the “Original Instructions” for the purposes of
the Machinery Directive.
Only engineers trained and certified by Domino should carry out repairs. Genuine Domino parts must always be
used to ensure quality and performance.
Users of this equipment are warned that it is essential to read, understand and act according to the information
given in this manual. This part of the product manual also specifies a set of symbols which are used elsewhere in
the product manual to convey special warnings or requirements. It is, therefore, essential that users are also
familiar with these symbols and act accordingly.

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Contents
01
02
03
Overview of the extraction system (front)
Overview of the extraction system (back)
Overview of the display
1
01
Unpacking and unit placement
3
01
02
Fume capture methods
Interfacing
03
Connecting to power supply & exhaust orientation
4
01
02
Turning extractor on
Accessing the menu/settings/changing display units
03
Run controls
5
01
02
Important safety notes
Safety labels
2
01
02
Maintenance
Filter replacement
6
01
Maintenance protocol
8
01
DPX3500 specifications
9
01
USB connectivity
7
04
05
Setting the desired airflow
System Status of filters and pump/s
06
System alarms

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Overview
01
1
LCD touch screen control
Main filter
Main filter lever
Pre-filter
Lockable castors
Door latches

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Overview
02
1
USB connector
Signal cable port
On/Off switch
Mains cable
port
Exhaust outlet
Exhaust inlet

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Overview
03
1. Run Control: allows the operator to START/STOP the extraction
2. Access: Navigates to ‘Menu’ page
3. System Indication: visual indication of inlet condition. As well as Pre and Main filter conditions.
4. Filter Indication: visual indication of filter condition. Pressing will navigate to relevant ‘Filter Data’
page
5. Airflow level indication: visual indication of flow setpoint relative to maximum setpoint. Pressing
will navigate to ‘Airflow Setting’ page
6. Airflow Setpoint: visual indication of airflow setpoint. Pressing will navigate to ‘Airflow Setting’
page
7. Alarm Notifications bar: visual indication of alarm states. Will populate with active alarms. Pressing
will navigate to ‘Alarms’ page
8. Actual Flow: visual indication of system flow. Units will be configurable (m³/h or CFM)
9. Service Indication: required system service notification.
10. Blower Status: visual indication of blower status. Pressing will navigate to ‘Blower Diagnostics’ page
11. Temperature Status: visual indication of internal system temperature. Units will be configurable
(degrees °C or °F).
1

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Safety Instructions
Important safety notes
Concerning symbols used on the extraction unit and referred
to within this manual.
Danger
Refers to an immediately impending danger. If the danger is
not avoided, it could result in death or severe (crippling)
injury. Please consult the manual when this symbol is
displayed.
Warning
Refers to a possibly dangerous situation. If not avoided, it
could result in death or severe injury. Please consult the
manual when this symbol is displayed.
Caution
Refers to a possibly harmful situation. If not avoided,
damage could be caused to the product or something in its
environment.
Important (Refer to manual)
Refers to handling tip and other particularly useful
information. This does not signify a dangerous or harmful
situation. Refer to manual when this symbol is displayed.
Electrical Safety
The unit has been designed to meet the Essential Health
and Safety Requirements of the Machinery Directive
2006/42/EC.
Warning
When working with the pump/motor housing open, Live
230/115 volt mains components are accessible. Ensure that
the rules and regulations for work on live components are
always observed.
Important
To reduce the risk of fire, electric shock or injury:
1. Always isolate the system from the mains power
supply before removing the pump/motor access
panel.
2. Use only as described in this manual.
3. Connect the system to a properly grounded outlet.
Dangers to eyes, breathing and skin
Once used, the filters within the DPX3500 system may
contain a mixture of particulates, some of which may be
sub-micron size. When the used filters are moved it may
agitate some of this particulate, which could get into the
breathing zone and eyes of the operative. Additionally,
depending on the materials being processed, the particulate
may be an irritant to the skin.
Caution: When changing used filters always wear a mask,
safety shoes, goggles and gloves as a minimum. User
must perform a risk assessment prior to any
maintenance.
Carbon selection
Please note that the media within the gas filter fitted in the
DPX3500 is capable of adsorbing a wide range of organic
compounds. However, it is the responsibility of the user to
ensure it is suitable for the particular application it is being
used on, based on the risk assessment performed by the
user.
Intended use
The Domino DPX3500 Laser Extraction System is designed
as a non-safety related system to extract particulates,
fumes and gases (extraction mixture) generated by a laser
process.
The Domino DPX3500 Laser Extraction System is exclusively
designed to be used in laser processes that:
- does not create burning or hot particles that do not safely
extinguish and cool down before they touch ignitable
ablations in the piping or in the filters.
- produces extraction mixtures that would not create a risk
to human health in the time taken for the process to be
stopped, by other means, after an undetected extraction
system fault
- is located in a well-ventilated area.
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The extraction base unit must also be placed in a well-
ventilated area.
The Domino DPX3500 Laser Extraction System creates a
volume regulated and monitored airflow away from the
laser process within the coding area of goods. It is intended
to keep the area of coding mostly free from accumulating
particulates to ensure high quality coding
For a sufficient capturing of particulates, fumes, and gases
at the laser process source the system must be adapted to
the individual laser process setup. For this the extraction
base unit can be combined with different hoses and nozzles
or fume extraction shrouds.
Inside the extraction base unit, the fumes are guided
through a pre and a main filter, those pre-treat the
extracted mixture of particulates and fumes up to a point
where they can be safely transported to a final treatment
without blocking the pipework. The filter load is monitored,
and the system is signalling the laser process to be stopped
if the set airflow range cannot be maintained for any reason.
To gain a good extraction mixture pre-treatment and
acceptable filter lifetime different filter types are offered
and can be used with the extraction base unit.
The extraction base unit keeps the extraction mixture in a
closed loop between suction entry and exhaust. This is only
opened to the environment for filter exchange.
In normal use the extraction keeps running for some time
after the laser process told it to stop - this removes the rest
of the extraction mixture from the pipework and the empty
space around the filters.
The exhaust is prepared to connect a pipe guiding the pre-
treated extraction mixture to its next destination. Only a
risk assessment based on the individual laser process
composition can decide how to handle the pre-treated
extraction mixture.
In many installations this will be a vent to atmosphere point
on the outside of the factory. This point must always have a
good natural ventilation and be away from other air intakes
and people meeting points.
Sometimes the by-products of a laser process and the pre-
treatment of the extraction mixture may fit good enough to
recirculate the air. To be able to check this the filter
performance of the System is known and documented so
that it can be used in an individual risk assessment.
Excluded use
The DPX3500 Laser Extraction System excludes the use
within a non-professional or domestic environment. The
DPX3500 Laser Extraction System is not a Health and Safety
product. For example, the extractor will not filter air for
human consumption. The extraction mixtures that the
system extracts may not create a risk to human health in the
time taken for the process to stop, by other means, after an
undetected extraction system fault. The Domino DPX3500
Laser Extraction System may not be used in laser processes
that create burning particles that do not safely extinguish
before they can ignite ablations in the piping or in the filters.
The DPX3500 Laser Extraction System excludes the use in a
factory environment which already contains high levels of
particulates and fumes.
The DPX3500 Laser Extraction System excludes the use as a
general-purpose vacuum cleaner.
The DPX3500 Laser Extraction System should not be used on
processes where sparks of flammable materials could make
their way into the extraction system or with explosive dust
and gases, without implementation of additional
precautions.
The DPX3500 Laser Extraction System must not be used on
wet applications or acidic fumes. For example, ablation by
laser of Polyvinyl Chloride (PVC).
Intended circle of users
The DPX3500 Laser Extraction System is intended for
professional use only. Only qualified and authorised
personnel shall operate the DPX3500 Laser Extraction
System. The DPX3500 Laser Extraction System must only be
maintained, serviced, and disposed of by authorised and
specifically trained personnel who are familiar with the
defined procedures. This special training is available via the
Domino Laser Academy (it is not a standard laser training).
Domino Technical Service
If a problem arises with your DPX3500 system, or if it
displays a fault code, please refer to the alarms guide within
section 5.06 of this manual. If the problem is still not
resolved, please contact your local Domino distributor or:
•Contact the helpline on:
Tel: [phone],
Fax: [phone]

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Safety Instructions
Warning and Information labels
The following listing details labels used on your DPX3500 unit.
Goggles, Gloves & Mask Label
Meaning: Goggles, Gloves and Masks should be worn while
handling used filters and refer to the user manual.
Electrical Danger
Meaning: Removal of panels with this label attached will allow
access to potentially live components.
Warning Label
Meaning: Power should be isolated before the panel with this label
attached is opened/ removed.
Heavy item Label
Meaning: Best practice manual handling to be used when lifting
this item, refer to customer risk assessment.
Manufacturer address
Meaning: The address of which the product was manufactured, the
location of this symbol is found on the marking plate.
Fire Risk Warning
In the very rare event that a burning ember or spark is drawn into
the fume extraction unit, it may be possible that the particulate
within the filters will ignite.
Whilst any resultant fire would typically be retained within the
fume extraction unit, the damage to the extractor could be
significant. It is therefore essential to minimise the possibility of
this occurring by undertaking an appropriate Risk assessment to
determine:
a). Whether additional fire protection equipment should be
installed.
b). Appropriate maintenance procedures to prevent the risk of
build-up of debris which could potentially combust.
This unit should not be used on processes where sparks could
occur, with explosive dusts and gases, or with particulates which
can be pyrophoric (can spontaneously ignite), without
implementation of additional precautions.
It is essential that nozzles or other extraction/ fume capture
devices and hoses/pipework are cleaned regularly to prevent the
build-up of potentially ignitable debris.
Application environment
The DPX3500 Laser Extraction System is intended for a permanent
installation within a manufacturing site and in areas similar to
manufacturing sites.
The DPX3500 Laser Extraction System must be installed in areas
that comply with the following environmental conditions:
•Indoor and is not subjected to weathering
conditions.
•The installation room must be equipped with
suitable room ventilation to disperse any residual
exhaust gases.
02
2

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Marking plate Label:
Location: adjacent to the incoming supply.
Meaning: This label contains a variety of information about the
extraction unit, including.
•Manufacturer name, Address
•Extractor model
•Part number
•Unit serial number
•Operating voltage range
•Maximum current load
•Operating frequency
•Year of Manufacture
•Relevant approval markings/ logos
PLEASE NOTE: If the equipment is used in a manner not specified
by the manufacturer, the protection provided by the equipment
maybe compromised.
Before installation
Installation and service
Installation and de-installation of the DPX3500 Laser
Extraction System must be done by professionals.
Install the unit on a firm and level floor and keep the exhaust
outlet clear of obstructions. The rear of the DPX3500 Laser
Extraction System must not be closer than 100mm to a
vertical wall or surface. Do not install the unit in any
outdoor area, or any area that is subjected to weathering
conditions. Service of the DPX3500 Laser Extraction System
must be completed by professionals.
Inner transit packaging removal & unit placement
Before installation, check the extraction unit for damage.
All packaging must be removed before the unit is connected
to the power supply.
Please read all instructions in this manual before using
this extractor.
1. Move the unit to the location where it is going to be
installed and remove the outer packaging. This unit
should be installed in a sufficiently ventilated area.
2. With the unit in position lock the 2 front castors.
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3. Open the front door and insert the main filter onto the
shelf and lift into place by rotating the cam handle 180
degrees clockwise.
Caution
Due to the weight of the extractor suitable lifting equipment
should be used and with regard to appropriate safety
precautions. (See Appendix for product weight details)
Ensure that 500 mm space is available around any vented
panels on the extractor to ensure adequate airflow.
4. Insert the desired Pre-filter from the options provided by
Domino; F6, F8 or F9.
5. Check the filters are located in their correct position
before closing the door and securing the door latches.
Note: The unit will not operate correctly if the Main filter
has not been secured in place using the internal lever. (As
detailed below)

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Installation
The DPX3500 has been designed to remove and filter fume
containing potentially hazardous particulate and gases
generated during manufacturing processes. Such hazardous
substances are captured within a multistage filtration
system after which the filtered air is returned to the
workplace.
Fume Capture Methods
The fume is normally captured by 1 of 3 methods.
•Flexible arm/ Nozzle
•Enclosures
•Cabinets
General Guidelines for a successful installation
•Keep hose run length to a minimum
•Avoid sharp bends / turns in the ductwork
•Avoid multiple bends / turns in the ductwork
•Position the capture device as close as possible to
the marking point. (If used on high speed lines,
position the capture device slightly downstream).
For all aluminium applications, it is strongly recommended
to use flexible hose- or solid pipework, the material of which
must withstand at least a maximum operating temperature
of 500 °C.
The inner diameter of the flexible hose or solid pipe must
not exceed 75 mm to ensure sufficient particle
transportation velocity. Smaller diameters will also ensure a
sufficient particle transportation velocity but will increase
pressure losses and result in reduced filter life.
Make sure that the solid pipe has a wall thickness of at least
1.5 mm. Check whether, due to the environmental
conditions on site, corrosion must be taken into account
when selecting the pipe material. The flexible metal hose kit
that fulfils all requirements is available as a genuine Domino
article.
All cleaning processes during maintenance of the extraction
system should be performed with a dry cloth.
Surfaces with minor residues in the form of fine particles can
be considered cleaned.
When planning a fixed piping system, please consider
inspection openings allowing for the cleaning process of the
piping according to your own risk assessment.
Installation Guidelines:
•The length of hose runs should be as short as
reasonably possible.
•Hoses should be kept as straight as possible with
the least number of bends required.
•Any surplus hose should be cut off and not coiled
up.
•Hoses should be free from any kinks and should
also be free from any obstruction.
•When connecting a hose to a unit where the hose is
the same diameter, they should be pushed
together as close as possible before tightening the
rubber boot coupling (see below):
•When connecting a hose with a smaller diameter to
a unit, it should sit just inside the inlet spigot before
tightening the rubber boot coupling (see below):
01
4
Extraction unit
Rubber boot
Airflow
direction
Extraction unit
Rubber boot
Airflow
direction
Hose
Hose

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Flexible Arm & Nozzle Extraction
The stay put arm should be mounted as close as possible to
the marking point it is recommended to use horseshoe clips.
Unscrew the push fit connector from the other side of the
flexible hose. Cut the flexible hose to suit the distance back
to the extractor connection and push onto the extractor
inlet.
Purge air should be kept to a minimum, where possible, to
prevent the fume being blown away from the nozzle.
High speed production lines may need bigger scoops or
nozzles both sides of the bottles because of the turbulence
caused by the speed of the bottles.
Moving products
For applications where the product to be marked is moving
past the stationary laser head the capture nozzle should be
positioned as close as possible to the marking area on the
side the product is moving towards.
Enclosures
The extraction hose and nozzle can be attached to the
enclosure surrounding the marking zone provided that the
extraction point is within 50-75mm of the marking point.
Cabinets
Cabinets normally have a 75mm 0r 100mm spigot for fume
extraction. For best performance use the same diameter
hose as the spigot and reduce at the extractor end if
necessary. Keep the hose run as short as possible.
Type of
contaminant
(as described
by HSG258
table 12)
Indicative duct
velocity (as
required by
HSG258 table
12)
Minimum
airflow
required
for 75mm²
hose kit
Minimum
airflow
required
for
100mm²
hose kit
Gases and non-
condensing
vapours
5 m/s
200 m³/h
200 m³/h
Condensing
vapours, fume,
and smoke
10 m/s
200 m³/h
290 m³/h
Low or medium
density, low
moisture
content dusts
(plastic dust,
sawdust), fine
dusts and mists
15 m/s
240 m³/h
430 m³/h
Connection to extraction unit
All ductwork should be installed and connected to the
extraction unit before the DPX3500 system is turned on.
Exhausting filtered air outside
Your DPX3500 extraction unit has an option to exhaust
through an outlet spigot. This provides a connection point
for exhaust pipework to be fitted. It is important to keep any
ducting to a minimum, in order to reduce back pressure
within the system.

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Guidelines for an effective installation
The extraction nozzle shall be installed downstream of the fume source, so as to ensure that the fumes are
transported in the direction of the extraction nozzle.
Incorrect nozzle position –fumes drawn
along with the product movement away
from the nozzle.
Correct nozzle position –fumes drawn
along with the product movement into the
nozzle.
Incorrect lens air –air too strong, and the
fumes are being blown away from the
extractor hose inlet.
Correct lens air –the fumes are being
drawn into the extractor hose inlet.

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If the extraction equipment is incorrectly setup and not maintained frequently particle collections can build up,
forming lumps of debris. In high production rate applications and/or with some materials these lumps may be hot.
If the debris lumps get large enough, they may break free and enter the extraction unit, and if they are hot enough
there is a chance for it to ignite the dust within the pre filter. To prevent this ensure the guidelines for an effective
installation are followed and maintenance as per 8.01, within this manual is followed.
Incorrect –Part of the process equipment
is blocking the fume path, which may cause
a build up of debris.
Correct –All parts of the process
equipment are out of the fume path,
preventing the build up of debris.

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Installation
Remote Stop/Start feature
Is a mandatory feature that enables the extraction unit to be
remotely turned On / Off via an external signal. The voltage
required is detailed below.
- DC Voltage input –24VDC
Note: Care must be taken to ensure that the system is
correctly wired in order for the extraction unit to function
correctly.
Extractor controlled by a Domino laser controller:
•Ensure the install option "vacuum" is activated
within the laser software (see Domino laser product
manual).
•Ensure that the controller software version is 4.2.2.4. or
newer.
Extractor controlled by PLC:
•Ensure that the extractor is operating before the
laser system is activated.
•Ensure the extractor is operating a certain time
(recommended 3 minutes) after the laser has been
set into standby.
•Monitor the System OK feedback signal (Pin 1) of
the extractor that it behaves as illustrated in the
signal-time-diagram below.
DC Voltage input
This configuration requires Pin 5 (+) and Pin 2 (-) of the
connector (Refer to section 1for location) to be connected to a
known and tested DC power supply, of a laser controller or
PLC.
The operating voltage for this signal is between 12 & 24VDC.
Only voltages within this range should be connected. Voltages
connected outside of this range may cause irreversible damage
to the internal control PCB.
When the extractor is provided with the correct DC voltage the
motor will start and maintain the set flow rate (Refer to section
5for how to set the flow) when the DC voltage is removed the
motor will slow down and come to a stop.
The extractor will need to be turned on and be out of standby
mode (See section 5for turning the extractor on) in order for
this feature to operate.
The power supply unit which is used to provide the 12-24VDC
start stop voltage signal must be protected by double
insulation from mains voltage.
Filter warning & System Fail Signal
With this option the system will output a signal to alert the
user when the extractor has failed or when the filters are
blocked.
This feature will not directly stop the extractor from running
correctly, but if fitted this feature should be terminated
correctly before power is applied to the system.
Connection specification
System OK: Signal given between Pins 1 & 6.
Filters 85% blocked: Signal given between Pins 3 & 4.
The system will provide a volt free Open / Closed signal that
can be connected to an external interface, beacon or
warning device following the specification below.
•Maximum input voltage: 24V AC
•Maximum current load: 3A @ AC
OR
•Maximum input voltage: 24V DC
•Maximum input load: 3A @ DC
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EPT076596 Issue 1 –March 2022
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Pin configuration:
1: System OK output N/O
2: Start signal input GND
3: Filters 85% blocked output N/C
4: Filters 85% blocked COM
5: Start signal input 24VDC
6: System OK output COM
Internal connections of interface connection

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Installation
Connection to Power Supply
Please the specification in section 9.01 when
selecting the power supply outlet for the DPX3500 system,
ensure the power supply is suitable before connecting the
DPX3500 system.
Check the Integrity of the electrical power cable. If the
supply cord is damaged the extraction unit should not be
connected to the mains. The supply cord should only be
replaced by a Domino service engineer as an electrical
safety test may be required after replacement.
The DPX3500 system MUST be connected to a properly
earthed outlet.
The DPX3500 system is supplied with mandatory
interfacing please read section 4.02 before the power
connection is made as additional connections may be
required before power is connected to the extractor.
Connect the power cable to an isolated electrical supply.
The mains socket should be installed near the extractor it
should be easily accessible and able to be switched On or
Off. The cable run should be arranged so as not to create a
trip hazard.
Changing the exhaust orientation
The exhaust has two orientations it can be used in “vent to
air” and “Exhaust box”. To change from one orientation to
another; the four M5 bolts need to be removed and then the
following sequence of images are followed:
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EPT076596 Issue 1 –March 2022
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Off
Loading
Home screen
Operation
Turning extraction unit On
Use the mains switch on the rear of the extractor to power
up the unit. (Refer to section 1 for switch location) by
pressing the Green side / (I) of the switch.
The screen will now illuminate.
Power on cycle
Once the extraction unit has been turned on the below
sequence will appear on the screen.
01
5