AS QC System M2 Series User manual

Operating instructions
(Translation)
Dispense heads of the series
- M2-Series

EN
AS Strömungstechnik GmbH
www.asstroemungstechnik.de
Version date: 09/2020
2
Legal notice
The operating instructions in German are
the original operating instructions.
Revision status: A 09/2020, creation
If you have questions about the products,
please contact AS Strömungstechnik
GmbH (manufacturer) directly.
Copyright, address of the manufacturer
© Copyright by
AS Strömungstechnik GmbH
Elly-Beinhorn-Str. 7
73760 Ostldern
Germany
[e-mail]
www.asstroemungstechnik.de
All rights reserved.
Printed in Germany
Legal notice

EN
AS Strömungstechnik GmbH
www.asstroemungstechnik.de
Version date: 09/2020
3
1 Contents
1 General information .............................................................................................. 4
1.1 Introduction ............................................................................................................. 4
1.2 Conventions ............................................................................................................ 4
1.3 Symbols and labels ................................................................................................. 5
1.4 Copyright protection ................................................................................................ 5
1.5 Guarantee and warranty ......................................................................................... 5
2 Safety ..................................................................................................................... 6
2.1 Intended use .......................................................................................................... 6
2.2 Improper use .......................................................................................................... 6
2.3 Responsibility of the user ....................................................................................... 6
2.4 General safety instructions ..................................................................................... 7
3 Setup/function ....................................................................................................... 7
3.1 Auxiliary tools ........................................................................................................ 10
4 Technicalspecications......................................................................................11
4.1 Dispense head MH2-D.../MH2-D-...-C2 .................................................................11
4.2 Ambient / operating temperature........................................................................... 13
4.3 Torques for dip tube closures................................................................................ 13
5 Assembly/commissioning.................................................................................. 14
5.1 Initial commissioning ............................................................................................. 14
5.2 Tests prior to assembly ......................................................................................... 16
5.3 Mounting the dispense head ................................................................................. 18
6 Operation ............................................................................................................. 22
6.1 Tests before each operation.................................................................................. 22
6.2 Tests during operation........................................................................................... 22
7 Troubleshooting .................................................................................................. 23
8 Disassembly ........................................................................................................ 24
8.1 Dismantling the dispense head ............................................................................. 24
9 Maintenance/disposal......................................................................................... 26
9.1 Cleaning the dispense head.................................................................................. 26
9.2 Dispense head maintenance................................................................................. 26
9.3 Returning dispense heads .................................................................................... 27
9.4 Dispense head disposal ........................................................................................ 27
Contents

EN
AS Strömungstechnik GmbH
www.asstroemungstechnik.de
Version date: 09/2020
4
1 General information
1.1 Introduction
These operating instructions are only valid
for the products mentioned in the title.
The gures shown are only exemplary
illustrations. Depending on the equipment
and conguration, the actual appearance
of the dispense head may vary.
These operating instructions convey im-
portant notes for the safe and efcient han-
dling of the products. They are part of the
products. The prerequisite for safe working
with the products is the compliance with all
specied safety instructions and directives.
The operating instructions refer to standard
versions. For special versions that are not
described in these operating instructions,
the basic information in these operating
instructions applies in conjunction with
additional special documentation.
The operating instructions are the basis for
all training courses that take place with the
products.
• Please read the operating instructions
carefully before using the products.
• Please read the safety instructions.
• Store the operating instructions in a
safe and accessible place during the
service life of the products.
• Pass the operating instructions to
any subsequent owner or user of the
products.
1.2 Conventions
In order to be able to optimally work with
the operating instructions, the following
clarications on typographical conventions
must be observed.
List
• Texts displayed in this way are bullet
points.
Handling instructions
1. Step 1 of the sequence of actions
2. Step 2 of the sequence of actions
3. Step 3 of the sequence of actions
The sequence of the work steps must be
adhered to.
Tip
» Indicates general information and
recommendations.
General information

EN
AS Strömungstechnik GmbH
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Version date: 09/2020
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1.3 Symbols and labels
The following symbols are used in these
operating instructions to depict hazards
and notes:
DANGER
Indicates a hazard which, if not avoided,
will result in death or serious injury.
WARNING
Indicates a hazard which, if not avoided,
could result in death or serious injury.
CAUTION
Indicates a hazard which, if not avoided,
could result in minor or moderate injury.
NOTE
Designates a situation that can result in
material damage.
1.4 Copyright protection
Despite all care taken, data and character-
istics can change – even at short notice.
We therefore do not assume any liability
or guarantee for the topicality, correctness
and completeness of the information.
Figures, graphics and texts as well as the
design of these operating instructions are
subject to copyright protection and other
protective laws. Duplication – also in ex-
cerpts – requires the prior written consent
General information
of AS Strömungstechnik GmbH, if duplica-
tion is not legally permitted.
1.5 Guarantee and warranty
AS Strömungstechnik GmbH assumes no
liability for errors or damage that occurred
due to improper handling of the products.
Improper handling is in particular in the
event of non-compliance with the operating
instructions, incorrect handling, negli-
gence, unauthorized replacement of parts
and other interventions.
The customer is responsible for testing the
chemical resistance of the dispense heads
and their service life.
Dispense heads and other products which
have come into contact with media/chem-
icals (except ultra pure water) cannot be
taken back.
AS Strömungstechnik GmbH reserves the
right to make design changes due to fur-
ther development of AS products.
Our customer service is always available
even after the guarantee period has ex-
pired.

EN
AS Strömungstechnik GmbH
www.asstroemungstechnik.de
Version date: 09/2020
6
2 Safety
Please observe the following notes to pre-
vent malfunctioning, damage and injuries.
2.1 Intended use
The M2-Series dispense heads are de-
signed for the clean and safe dispensing/
withdrawal of neutral or inorganic liquid
chemicals from transport containers which
do not adversely affect the physical and
chemical properties of the materials and
substances of which the dispense head
used is composed.
The M2-Series conductive dispense heads
are designed for the clean and safe dis-
pensing/withdrawal of neutral or organic
liquid chemicals from transport containers
which do not adversely affect the physical
and chemical properties of the materials
and substances of which the dispense
head used is composed. They are electro-
statically safe in the sense of the Cenelec
Technical Report TR 50404: 2003 and
therefore applicable in zones 1 and 2 for
liquids of the entire explosion group IIA.
Dispense heads may be used only in con-
junction with AS dip tubes of the series
corresponding to the dispense head. Ob-
serve the operating instructions of the dip
tube.
The dispense heads are designed for use
with pump systems.
For lling and recirculation applications,
refer to the operating instructions for ll
heads of the corresponding series.
2.2 Improper use
Any use other than the one described in
the Section “intended use” is deemed to
be inappropriate use. The operator of the
products shall be solely responsible for any
resulting damage.
2.3 Responsibility of the user
Operator means any natural or legal per-
son who operates or controls the device or
makes it accessible to third parties for use
and who is responsible for the safety of the
user or third parties.
• In particular, observe the general
safety and occupational safety regula-
tions of the BG Chemie in Germany or
the responsible regional professional
association for chemistry and health
(e.g. OSHA in the United States), the
applicable technical rules for haz-
ardous substances, the Hazardous
Substances Ordinance, the CLP Or-
dinance, the company own standard
operating procedures (SOPs), as
well as the regulations of the ATEX
Directive, the technical guidelines
“Flammable liquids” and the explosion
protection guidelines of the BG Che-
mie in Germany or the responsible
regional association / authority for
applications in hazardous areas.
• These operating instructions do not
replace the company’s own standard
operating procedures (SOPs).
• Wear appropriate protective clothing
when handling chemical substances.
Safety

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AS Strömungstechnik GmbH
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• Ensure that the dispense heads are
not used after the maximum period of
use has expired. The duration of use
depends on the chemicals used.
• Before using the products, check the
materials for their chemical resistance.
2.4 General safety instructions
• Always observe the safety data sheets
(SDS) of the chemicals used.
• Only use cleaned products. The prod-
ucts described in these operating
instructions have been cleaned in an
ultrasonic bath at the factory.
• Only use products for which the chem-
ical resistance of the components is
guaranteed.
3 Setup/function
In the M2-Series, the following dispense
heads are available:
Abbrevia-
tion
Description
MH2-D... Dispense head with/without
check valve
• Standard,
• electrically conductive.
MH2-D...-C2 Dispense head with/without
check valve
• Standard,
• electrically conductive
• special version for Clori-
ous2
Depending on the design, the dispense
head may look slightly different.
Setup/function

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Version date: 09/2020
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Nr. Object
1Liquid line connection
2Tightening nut
3Check valve (depending on model)
4Vent channel
5Liquid channel
6Retaining ring
- Code disk
(not displayed/optional)
Setup/function

EN
AS Strömungstechnik GmbH
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Version date: 09/2020
9
The dispense head is generally equipped
with:
• Liquid line connection to inlet of uid
pump line connection
• the tightening nut
• Standard connection to mating dip
tube
• the vent channel
The check valve ensures that there is no
ow back after transfer is complete and
there is no spill at disconnection. As soon
as the pump is activated, the check valve
opens. When the pump is switched off,
the negative pressure in the suction line is
reduced and the check valve closes.
To remove ammable or highly ammable
chemicals from a container, there is an
electrically conductive version of the dis-
pense head and the dip tube.
» The MOC of electrically conductive
plastic dispense heads and dip tubes
is always black in color due to the
carbon additive.
WARNING
Danger due to static charge.
Statically charged chemicals or dis-
pense heads, dip tubes, etc. can cause
sparks to arc creating an ignition
source.
• Ground the dip tube and dispense
head properly.
Setup/function

EN
AS Strömungstechnik GmbH
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Version date: 09/2020
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3.1 Auxiliary tools
The required auxiliary tools are listed be-
low. For further details, please refer to the
corresponding data sheet and our website.
Docking station (for wall mounting)
Series Item no. Note
QC2/M2 RDC-89740 incl. bottle
QC2/M2
conduc-
tive.
RDC -89740 -CD
without shelf
for accesso-
ries
Setup/function
Universal bung wrench
Series Item no. Note
QC2/M2 RDH-79005 PVDF
QC2/M2
conduc-
tive.
RDH-79003-CD electrically
conductive
Torque tool
The torque tool comes with torque wrench
and attachment.
Series Item no.
QC2/M2 DH-Z-2-0001-02
24mm
6 point socket

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AS Strömungstechnik GmbH
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Version date: 09/2020
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4 Technicalspecications
4.1 Dispense head MH2-D.../MH2-D-...-C2
Characteristic Value Figure
Dimensions See the corresponding
data sheet for the dispense
head.
The dispense heads shown here are only exemplary
representations. Depending on the equipment and conguration,
the actual dispense head may vary in appearance
Weight
Tightening torque
[Nm] M2-Series: 2.6
Flow rates
[l/min]
M2-Series:
• max. 2 (with check valve)
Period of use Depending on chemical
resistance
Standard: 2 years
Technicalspecications

EN
AS Strömungstechnik GmbH
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Version date: 09/2020
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Materials (Wetted components)
Characteristic Value
Housing variants Standard (natural): PE-HD, PVDF
Conductive: PP (black), PVDF (black)
O-ring variants Standard: FPM/FKM, EPDM
Connections
Characteristic Value
Connection vari-
ants liquid
Flare: 1/4“
Hose Connector: 1/4“
G-thread: 5/8“
» Further information on the dispense heads can be found in the corresponding data
sheets. Possible other versions are available on request.
Technicalspecications

EN
AS Strömungstechnik GmbH
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Version date: 09/2020
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4.2 Ambient / operating
temperature
Housing
material
Temperature
Environ-
ment
Operation
PE-HD, PP 20–40 °C
(68–104 °F)
20-40 °C
(68-104 °F)
PVDF 20-60 °C
(68-140 °F)
20-60 °C
(68-140 °F)
For applications outside the listed tempera-
ture ranges, please contact the technical
customer service of AS Strömungstechnik.
The chemical resistance of plastics and
elastomers can deteriorate due to heat at
temperatures higher than room tempera-
ture.
For dispense heads with built-in sensors
(e.g. limit switch, bubble sensor), also ob-
serve the temperature specications given
in the sensor data sheet. These may fur-
ther restrict the temperature ranges listed
here.
Technicalspecications
4.3 Torques for dip tube closures
QC2/M2
Closure type Torque
S type / V type
(3/4" plug) 5-6 Nm
T type / W type
(M42 plug). 6-8 Nm
T-Typ / W-Typ
S -Typ / V-Ty p

EN
AS Strömungstechnik GmbH
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Version date: 09/2020
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5 Assembly/commissioning
In the containers onto which the dispense
heads are mounted, there is already the
dip tube on which the dispense head is
mounted. The dip tube is possibly key-cod-
ed according to the liquid in the container
and is tightly closed by means of the clo-
sure. Depending on the closure, it can also
be closed with a tamper-proof cap. For the
assembly described below, it is assumed
that the closure is secured with a tam-
per-proof cap.
5.1 Initial commissioning
1. Make sure that the entire system is in
a clean environment.
NOTE
Contamination and debris can restrict
the functionality of the entire system and
lead to premature wear of o-rings and
seals and thus to leaks. Dust deposits
must be avoided in EX areas in par-
ticular, as there is an increased risk of
ignition.
2. Connect the suction line to the liquid
connection of the dispense head. The
following must be observed here:
• The suction line must be connect-
ed free of stress and load.
• The connecting couplings must
not be tightened too tight or too
loose. Both can lead to leaks.
Please use recommended torque
specications of the respective
manufacturer when tightening
nuts and screws.
Assembly/commissioning
• The screw connections must be
secured against unwinding.
When using are connections,
see also AS are and assembly
instructions.
• If the suction line is installed hor-
izontally, it should be supported
approx. 50 cm away from the
dispense head.
• The vibrations of the uid pump
must not be transmitted to the dis-
pense head via the suction line.
• The suction line should be as
short as possible. This results in
better suction performance.

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AS Strömungstechnik GmbH
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Version date: 09/2020
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Assembly/commissioning
3. Mount the dispense head on a con-
tainer lled with ultra pure water. For
assembly, see the section “Mounting
the dispense head”.
4. Perform a test run with ultra pure wa-
ter and check the following points:
• Tightness of the connections and
interfaces,
• Closing behavior of the valves;
the valves (check valve, plug
valve (turncock) or ball valve)
must seal completely,
• Ventilation of the container at
maximum ow rate.
If no pressure range is available/
measurable, visually check that
the ow rate is constant and that
the container does not inate or
collapse.
CAUTION
Danger due to leaks!
Exceeding the maximum ow rate can
lead to leakage.
• Take suitable protective measures
against exceeding the maximum ow
rate.
5. Check/test the chemical resistance
of the dispense head for the chemical
used.
» On our website you will nd a data-
base with some data on chemical
resistance, which can be used as a
guide.
Link: https://asstroemungstechnik.de/
de/chembank
6. Check whether the dispense head
shows any damage such as cracks or
discoloring.
7. Use the rst liters of product as
ushing chemistry to condition the
dispense head and connections.

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Version date: 09/2020
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5.2 Tests prior to assembly
1. Use the label on the container to
check whether the desired chemical is
in the container.
» In addition, an electronic chemical
comparison should be carried out via
barcode or RFID.
2. Make sure that the container is placed
in a dust-free environment.
NOTE
Contamination and debris can limit the
functionality of the dispense head and
lead to premature wear of seals and
thus to leaks.
3. Carry out a visual inspection for the
following points:
• Contamination and adhesion of
chemical residues. The dispense
head must be clean.
• Make sure there is no damage
such as cracks, etc.
Assembly/commissioning
4. Check the connecting couplings. They
must not be too tight or too loose.
» Use the correct tightening torque that
matches the screw connection.
Please use recommended torque
specications of the respective man-
ufacturer when tightening nuts and
screws.
» The screw connections must be se-
cured against unwinding.
When using are connections,
see also AS are and assembly in-
structions.

EN
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Version date: 09/2020
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Assembly/commissioning
5. Check that the o-rings (1) and (2) are
in place and undamaged (e.g. Cracks,
tears, and residue are signs of dam-
age) and that the venting channel (3)
is clear of debris.
6. If a code disk is used check that the
code disk (5) is on the dispense head
and that the coding matches that of
the dip tube (6) and thus the chemical.
This means that only the correct three
pins (7) must be missing and the code
disk must not be bent.
» Do not change any coding on the dip
tube or the code disk if they do not
match. A list of the possible codings is
available on request.

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7. In the case of conductive dispense
heads, check whether a conductive
dip tube is installed and whether it is
grounded.
Follow the ATEX and OSHA instruc-
tions and regulations.
» For further information, please refer
to the operating instructions of the dip
tube.
Assembly/commissioning
5.3 Mounting the dispense head
WARNING
Hazard from chemicals!
Chemicals can cause irritation and
chemical burns.
• Observe the proper Standard Operat-
ing Procedures (SOP) when handling
hazardous substances.
• Observe the safety data sheets (SDS)
of the chemicals used.
• Wear the necessary personal pro-
tective equipment (PPE) (suitable
protective clothing, protective gloves,
respirator and safety goggles / face
shield).
1. If a tamper-proof cap is tted to the dip
tube closure of the container, remove
the blue seal on the original tam-
per-proof cap (1).

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2. Open the tamper-proof cap and
remove the red seal. Place both, if
available, in the docking station on the
system side (see Section 3.1).
WARNING
Inhalation of chemical gases!
Inhalation of chemical gases is a health
hazard.
• Open the container only while the
chemical gas is being extracted.
• Please observe the applicable thresh-
old limit values.
• Wear the necessary personal pro-
tective equipment (PPE) (suitable
protective clothing, protective gloves,
respirator and safety goggles / face
shield).
Assembly/commissioning
3. Slowly open the dip tube closure (2)
with the bung wrench (3) in case the
contents are under pressure. (See
Section 3.1)
» If the container is under pressure
when opened, it is drained via the ven-
tilation holes in the dip tube. You may
hear a hissing sound. In this case, do
not open the dip tube closure any fur-
ther, but wait until no more hissing can
be heard.
» Check whether a bung wrench with
a special chamber for neutralization
granulate can be used so that the
escaping gases can be additionally
neutralized when opening.
» If the chemical escapes when the
container is opened, the container has
been overlled by the chemical ller.
If this is the case, close the container
again immediately and contact the
chemical ller / manufacturer / sup-
plier.

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4. Remove the dispense head, if present,
from the system-side docking station.
5. Wet the o-ring (4) with ultra pure wa-
ter.
» Wetting with ultra pure water mini-
mizes sliding friction and protects the
o-ring from damage.
6. Make sure that electrically conductive
dispense heads are properly grounded
with a ground wire and terminal.
Assembly/commissioning
7. Insert the dispense head into the dip
tube.
8. If a code disk is used align the code
disk using the red or green orientation
pins (5) and (6).
» The orientation pin of the dip tube and
the code disk must be on top of each
other.