DEHAS QualityReg 200 User manual

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
User manual
for
Pressure Reducer
“QualityReg”
D-QR-200- all types

DEHAS Medical Systems GmbH, Wesloer Straße 107-109 23568 Lübeck, Germany

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
2
Inhaltsverzeichnis
1. Introduction 3
1.1 Summary 3
1.2 General information 3
1.3 Defined use and abuse 4
1.4 Personnel requisition 4
2. For your safety 6
2.1 Summary 6
2.2 Used symbols 6
2.3 Essential information 6
3. Characterization 9
3.1 Summary 9
3.2 Summary pressure reducer D-QR-200 9
3.3 Characterization pressure regulator 13
3.4 Operating agents 14
3.5 Technical data 15
4. Operating 16
4.1 Summary 16
4.2 Assemble a pressure regulator 17
4.3 Operate the pressure regulator 19
4.4 Decommissioning 22
4.5 Expected useful life of the cylinder 24
5. Disturbance 25
5.1 Disturbances 25
6. Care and cleaning 26
6.1 Summary 26
6.2 Regularly maintenance work und visual testing 26
6.3 Regularly cleaning 27
7. Index 28

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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1. Introduction
1.1 Summary
Topic
This chapter includes
General information about this user manual
The defined use of the pressure regulator “QualityReg” D-QR-200 and
The manufactures’ demands on employees.
1.2 General information
Validity
This user manual is valid for all types of the pressure regulator “QualityReg”
D-QR-200.
Manufacturer
DEHAS Medical Systems GmbH
Wesloer Straße 107-109
23568 Lübeck
Deutschland / Germany
Fon: [phone]
Fax: [phone]
E-Mail: [email protected]
Web: www.dehas.de
Date of Issue
08/2022
Custody and integrity
This manual is part of the pressure reducer D-QR-200 and has to be visible depos-
ited for authorized persons.
It is never allowed to remove part of the manual. Missing manual or missing parts –
in particular the chapter „For your safety“– has to be replaced.
Copyright
This documentation includes copyrighted material. It is forbidden to photocopy, copy,
translate or store the whole documents, or parts of it without prior permission.
We reserve all rights in connection with this document.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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1. Introduction
1.3 Defined use and abuse
Change management
This documentation is not part of the change management from DEHAS.
Chances are possible without announcement.
Defined use
The pressure regulator of the D-QR-200 series are designed for use on compressed
gas cylinders for compressed and under pressure solute medical gas. They cut down
the particular cylinder pressure on a continuous flow as possible. The approved gases
are shown on the type label.
Abuse
The following operating conditions are classified as abuse:
Using the pressure regulator with gases that are not listed on the type label.
Using the pressure regulator for gases during the liquid phase.
Using the pressure regulator beyond the allowed technical limiting values
Manipulate the adjusted initial pressure or adjusted flow rate.
The inobservance and noncompliance of the local regulations and appointments.
Abuse
All further categories of usage, which are not listed above are classified as device
abuse.
1.4 Personnel requisition
Definition person in authority
A person is in authority, if he/she comes with an education as a medical-technical as-
sistant, got an technical briefing and education about the whole system and the coher-
ent hazards (compressed gas cylinder, medical gas, gas cylinder valve, pressure re-
ducer) and successfully completed trainings about „Supply with compressed gases“
particularly oxygen-gases and their hazards.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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1. Introduction
1.4 Personnel requisition
Tasks of persons in authority
Persons in authority have to recognize disturbances or rather abnormalities and - as
possible and allowed - correct them.
Tasks of the user
To fulfill the tasks the user has to meet following demands:
The user has to be briefed in using the pressure regulator by a person in authority.
He/ she have to read and to understand the whole manual.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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2. For your safety
2.1 Summary
Topic
This chapter includes
The meaning of the use symbols.
Essential information about the safe handling of the pressure regulator and
The safety installations of the pressure regulator –their function and details
Important information!
The following safety instructions shall be deemed to be additional to the effective local
accident prevention regulations.
Effective accident prevention regulations and laws have to be kept in all cases.
2.2 Used symbols
Danger!
This symbol points out that there is danger to life and health of persons.
The word „Danger to life” is used separately to adverts danger for life.
2.3 Essential safety information
Danger!
Adhere strictly the following safety instruction to avoid danger to life and
health:
Possible Hazard
Abatement measures
Danger to life!
Annotation:
If Oxygen encounter oil or grease it is possi-
ble, that the device catches fire caused bya
chemical reaction.
Keep all parts that encounter oxygen free
of oil and free of grease.
Danger to life!
Annotation:
Effluent gas in the ambient air could catch
fire. There is danger offire and explosion.
Smoking or open fire (e.g. candles)
around your oxygen device is strictly for-
bidden!

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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2. For your safety
Danger!
Possible Hazard
Abatement measures
Danger to life!
Annotation:
The pressure reducer could be damaged by
unauthorized changes or reconstructions so
that it doesn´t work intended. There is the
hazard of functional disorder, overdose, fire
or damage of the system cylinder –valve –
pressure regulator.
Without an approval from the manufac-
turer it is not allowed to do change or re-
construct the pressure regulator.
Danger to life!
Annotation:
If you use gases which are not listed at the
type label there is the hazard of functional
disorder, overdose, fire or damage of the
system cylinder –valve –pressure regula-
tor.
Use it only for gases, whose label is
shown at the pressure reducer.
Danger to life!
Annotation:
If a pressure reducer is connected to the
gas cylinder while transport it could be dam-
aged deformed or that it shear off. This
could cause functional disorder, overdose,
fire or damage of the system cylinder –
valve –pressure regulator.
Disassemble the pressure reducer before
you transport the gas cylinder.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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2. For your safety
Danger!
Possible Hazard
Abatement measures
Danger!
Annotation:
With faulty treatment and intended handling
is it possible that there are hazards for user
and other persons as well as damages of
the device mayappear.
Use and handle the device like described
in the user manual.
Danger!
Annotation:
With use fluid gases there is the hazard of
functional disorder, overdose, fire or dam-
age of the system cylinder –valve –pres-
sure regulator.
Do not use for fluid gases.
Danger!
Annotation:
With use beyond the allowed technical lim-
iting temperatures it is possible that there
is the hazard of functional disorder,over-
dose, fire or damage of the system cylinder
–valve –pressure regulator.
Do not use in ambient temperatures under
-20°C and over 60°C.
Danger!
Annotation:
A turning over gas cylinder is able to bring
forth functional disorder, overdose,fire or
damage of the system cylinder –valve –
pressure regulator and could catapult with
high speed and power prefabricated parts of
the system.
Assure gas cylinders always against tilting
over.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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3. Characterization
3.1 Summary
Topic
This chapter includes
An overview about the most important elements of the pressure regulator,
An functional description of the pressure regulator,
An overview about the operation agents and their function and
The technical data.
3.2 Summary pressure reducer D-QR-200
Pressure regulator with flow applications , no pressure outlet
( A Lbehind the order number add up an high pressure adapter that is
about 60 mm longer )
D-QR-O2-200-0/15 (Variable Flow / Outlet always 9/16" UNF)
D-QR-O2-200-4 (Fixed flow / Outlet always 9/16" UNF)
D-QR-O2-200-5 (Fixed flow / Outlet always 9/16" UNF)
D-QR-O2-200-6 (Fixed flow / Outlet always 9/16" UNF)
D-QR-O2-200-8 (Fixed flow / Outlet always 9/16" UNF)
L = long adapter
S = Hose connector on 9/16"
Example short adapter:
D-QR-O2-200-4
Druckminderer Sauerstoff G 3/4" kurzer Stutzen 200 Bar mit DIN Steckkupplung nach unten, 2ter Abgang nach hinten verschlossen
Example long adapter:
D-QR-O2-200-4-L
Druckminderer Sauerstoff G 3/4" langer Stutzen 200 Bar mit DIN Steckkupplung nach unten, 2ter Abgang nach hinten verschlossen

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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3. Characterization
Pressure regulator with pressure outlet
(1 or 2 outlets, could be assembled various
A Lbehind the order number add up an high pressure adapter that is about
60 mm longer )
D-QR-O2-200
U = Downgrade outlet
H = Reverse outlet
A = DIN standard connector
B = M 12 x 1 with RSV
C = 3/8 " outside without RSV
D = 9/16" UNF without RSV
E = Closed
L = Long adapter
Example short adapter
D-QR-O2-200-UA-HE
Druckminderer Sauerstoff G 3/4" kurzer Stutzen 200 Bar mit DIN Steckkupplung nach unten, 2ter Abgang nach hinten verschlossen
Example long adapter
D-QR-O2-200-UA-HE-L
Druckminderer Sauerstoff G 3/4" langer Stutzen 200 Bar mit DIN Steckkupplung nach unten, 2ter Abgang nach hinten verschlossen
All pressure regulator of this type are also available for AIR (compressed air).

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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3. Characterization
Pressure regulator with pressure outlet and flow 0 -15
(1 or 2 outlets, could be assembled various
A Lbehind the order number add up an high pressure adapter that is about
60 mm longer )
D-QR-O2-200-15
U = Downgrade outlet


H = Reverse outlet


A = DIN standard connector


B = M 12 x 1 with RSV


C = 3/8 " outside without RSV


D = 9/16" UNF without RSV


E = Closed


0-15 = staged flow 0-15 Liter
(In dies case the outlet adapter is always 9/16" UNF with hose adapter)

L = Long adapter


Example short adapter
D-QR-O2-200-15-UA-HE
Druckminderer Sauerstoff G 3/4" kurzer Stutzen 200 Bar mit DIN Steckkupplung nach unten, 2ter Abgang nach hinten verschlossen und gestuftem Flow 0-15 Ltr./
Minute
Example long adapter
D-QR-O2-200-15-UA-HE-L
Other configurations and variations are available on request.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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3. Characterization
Illustration pressure regulator D-QR-x-200-x-x
Illustration pressure regulator D-QR-x-200-15-x-x
1
2
6
4
3
1
6
6
4
3
5
2
5
7
9

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3. Characterization
Element of the pressure regulator D-QR-x-200
The pressure regulator D-QR-x-200 consists in certain of the following parts:
Pos.
Notation
Exist in
type
Function
1
Manometer
all
Indicates the pressure of the connected oxy-
gen cylinder.
2
Pressure regulator
case
all
Contains the virtual pressure regulator.
3
Hose connector
all
Adapter of a 6 mm hose, a respiratory
mask or a nasal cannula.
4
Safety valve
all
Defend the pressure regulator from excess
pressure.
5
Pressure outlet
Have a look at the listed variants
6
Hand adapter
all
To connect the device with a gas cylinder
use a similar to the type of gas coded screw
thread and no tools.
7
Variable
metering unit
200-15
To adjust the variable flow rate.
3.3 Characterization pressure regulator
Functional description of the pressure regulator
The pressure regulator is attributed to be connected directly with the gas cylinder valve.
The cylinder pressure of at most 200 bar is to be reduced on a preferably constant ini-
tial pressure.
According to DIN-EN-ISO 13544 it is possible to connect the hose adapter with a res-
piratory mask or a nasal cannula. Thereby you have to pay attention to the compatibility
of the used accessories with the used standard interface.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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3. Characterization
3.4 Operating agents
Variable metering unit at type D-QR-x-200-15
With the Variable metering unit the flow rate is adjusted at exact defined values be-
tween 0 l/min and 15 l/min. No gas flow at position „0“.
Clockwise rotation: The flow becomes reduced respectively be-
comes zero.
Anti-clockwise rotation: The flow gets raised.
Hand adapter –all types
Screw-thread-connection for connect with the cylinder valve without using tools.
Clockwise rotation: The pressure regulator becomes bolted to-
gether with the cylinder valve.
Anti-clockwise rotation: The pressure regulator detaches oneself from
the cylinder valve.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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3. Characterization
3.5 Technical data
Pressure regulator D-QR-x-200-15-x-x
Data
Value
Max. pressure on the input side
200 bar
Max. pressure on the output side
See type label
Max. outlet pressure of the separate pres-
sure outlets:
4 bar – 5 bar
Flow accuracy
Either ±10 % or ±0,5 l/min (the higher value
is valid)
Screw thread cylinder adapter
Similar to the type of gas and national
standard.
Screw thread constant outlet
See list of variations
Screw thread variable outlet
9/16“UNF
Caliber hose connecter adapter
6 mm according to DIN-EN-ISO 13544
Weight ; depending on type
560 g to 830 g
Allowed temperature range
−20 – +60 °C
Type of gas
See type label

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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4. Operating
4.1 Summary
Topic
This chapter includes all information to connect the pressure regulator to gas cylinder
valve and to handle it.
Danger!
Adhere strictly the following safety instruction to avoid danger to life and
health:
Possible Hazard
Abatement measures
Danger to life!
Annotation:
If the gas cylinder valve is opened to fast
there is the hazard of functional disorder,
overdose, fire or damage of the system cyl-
inder –valve –pressure regulator.
Always open the valve of the gas cylinder
slowly!
Danger to life!
Annotation:
If accessories are used that are not ade-
quate to the gas and the pressure range it is
possible that a fire arises out of a possible
reaction.
Accessories hast to adequate for the used
gas and for the existing pressure range
(up to 200 bar).
If there are any doubts about the ade-
quacy of the accessories contact our
medical device consultants (call number
and fax number are listed on the back).
Danger to life!
Annotation:
If there is used an adapter between gas cyl-
inder valve and pressure regulator the risk
to apply the wrong gas to the patient is prev-
alent.
It is not allowed to use an adapter be-
tween gas cylinder valve and pressure
regulator.
Danger to life!
Annotation:
If the contact surface orthe joints and gas-
kets on the gas cylinder valve / pressure
regulator are damaged or missing the risk
of uncontrolled escape of gas is prevalent.
Check the contact surfaces for damage
before you assemble the pressure regu-
lator.
Do not assemble the pressure regulator
if contact surfaces or joints and gaskets
are damaged or missing.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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4. Operating
4.2 Assemble a pressure regulator
Connecting a pressure regulator with an gas cylinder valve
Act in the following way to connect a pressure regulator to a gas cylinder valve:
Step
Activity
Illustration
1
Make sure, that the flow be at-
tuned to zero.
Turn the hand adapter respec-
tively the variable metering unit
clock wise.
2
Make sure, that the gas cylinder:
stands vertical and
Is protected against falling over.
3
Remove when indicated the cap on the gas cylinder valve.
4
Screw the hand adapter of the pressure regulator with the screw threat of the
gas cylinder valve.
The hand adapter has to be turned clockwise.
Never use tools to screw the hand adapter!
5
Attract the hand adapter hand tight.
Never use tools to screw the hand adapter!
The pressure regulator is connected.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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4. Operating
Connecting the pressure outlet
Act in the following way to connect e.g. an airpack the pressure outlet of the pressure
regulator:
Step
Activity
1
Make sure, that:
The pressure regulator is connected and
The gas cylinder valve is closed.
2
Remove when indicated the cap on the pressure outlet of the pressure regula-
tor.
3
Screw the pressure adapter of the device that should be connected with the
continuous outlet.
Never use tools to screw the continuous outlet!
The continuous outlet is connected.
If you open the gas cylinder valve, the continuous pressure of 5 bar is availa-
ble instantly.
Monitor the manometer during the withdrawal of gas. If the pressure isn´t within
the green range anymore finish the withdrawal of gas. Close the gas cylinder
valve, disassemble the pressure regulator and let the gas cylinder fill respec-
tively change the gas cylinder against a filled one.
Connect the hose with the hose connector
Act in the following way to connect a hose with the hose connector:
Step
Activity
1
Make sure, that the pressure regulator is connected to a gas cylinder valve.
2
Make sure, that the knurled nut of the hose connector is tightened.
3
Put the end of the hose on the hose connector so that it surrounds the whole
hose connector.
The hose is connected to the hose connector.

DEHAS Medical Systems GmbH, Wesloer Straße 107-109, 23568 Lübeck, Germany
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4. Operating
4.3 Operate the pressure regulator
Danger!
Adhere strictly the following safety instruction to avoid danger to life and
health:
Possible Hazard
Abatement measures
Danger to life!
Annotation:
If you adjust a dose that is too high, it is pos-
sible that a fire arises out of a possible
chemical reaction or your health could be at
risk.
Make sure that you adjust exclusively the
flow value as prescribed by your attending
doctor.
Danger!
Annotation:
Is there a fluctuating indication of the ma-
nometer or of the volume meter after the
opening and adjusting of the flow, the risk of
a too low ora too high dose is prevalent.
Do not use the system gas cylinder –gas
cylinder valve –pressure regulator if it is
not possible to adjust or metering the flow
exactly.
Close the gas cylinder valve and let the
systems check by a service technician.