DEDAKJ DE-1LW User manual

USER MANAUL
In order to use this product safely, please read the user manual before use
HOME OXYGEN CONCENTRATOR
Model No.:DE-1LW

01
CONTENTS
Safety Precautions
Product Features
Key Technical Indexes
Operating Instructions
Cleaning, Care and Maintenance
Troubleshooting
Working Principle
02
03
04
05
10
13
15

02
Safety precautions
Pre-Installation
WARNING
This device is not medical instrument NOT INTENDED to be
life sustaining or life supporting.
● Upside down operation prohibited.
● If the power supply has unstable voltage, or is beyond
AC220±22(110±10)volt, please connect the voltage regulator before using
the machine.
● Please use standard socket with safety qualification and terminal board
with electrical safety certification.
● Don’t open the case non professionals.
Laying Place
● The machine should be located in a well-ventilated space and avoid
direct sunlight. The distance between the machine and the wall or other
objects should be no less than 10cm.
● Do not put other things or liquid vessel on the machine.
● Stacking sundries is prohibited on the back and bottom vent of the
machine, to prevent shutdown or decrease in oxygen concentration due to
high temperature cause by blocked exhaust.
Using
● WARNING: Oxygen is a combustion-supporting gas, so do not smoke
and keep away from combustion source while using the machine for fear
of fire accident.
● Do not switch on & off frequently. You can restart it after you have
switched it off for 3-5 minutes, considering its service life.
● Avoid oil or grease-like material for any part of the machine. So as not
to pollute the oxygen machine and cause fire.

03
Feature of DEDAKJ Home Oxygen Concentrator
Overview
The scope of product application: The DEDAKJ 1LW Oxygen Concentrator
is designed in accordance with standard of Home usage appliances, It
supplies a high concentration of oxygen.
Operating principle
This product uses AC220V/110V as power source, air as raw material and
adopts the pure oil-free air compressor and qualified molecular sieve
imported with original packaging, so as to generate high purity oxygen by
PSA at normal temperate and supply oxygen.
Function Feature
● Intelligent Control: LED display, timing function, easy to use and
simple to operate.
● Overheating protection: The pure oil-free air compressor with
overheat protector, will stop working automatically when the compressor's
working temperature is too high to protect the compressor and the whole
part of the product.
Accessory List
Oxygen concentrator
Remote control
Power cord
User Manual
Warranty card ( attached at the end of the manual)
Certificate of conformity (attached to the end of the manual)
Quick start manual

04
Key Technical Indexes
● Product Name: Home Oxygen concentrator
● Model: DE-1LW
● Oxygen Generation Method: PSA
● Rated Power: 120VA
● Rated Voltage: AC220±22V 50 ± 1Hz/AC110±10V 60Hz
● Oxygen Concentration: 30% -90%
● Oxygen Flow Rate: 1-7L / min adjustable
● Oxygen Pressure: 0.03-0.06MPa
● Carbon Dioxide: Pass the test according to the prescribed method
● Carbon Monoxide: Pass the test according to the prescribed method
● PH: Pass the test according to the prescribed method
● Morphological Identification: Colorless gas, odorless and tasteless,
combustion-support
● Operating Noise: ≤ 45dB (A)
● Dimension: 340 x 180 x310mm
● Net Weight: 6.0kg
● Classification: Class II
● Display Control: LED light display, intelligent chip control, infrared
remote control
● Safe Working Conditions:
Environmental Temperature : 5℃-40℃
Relative Humidity: ≤ 80
Atmospheric Pressure: 86kpa-106kpa
● When the temperature is lower than 5℃, the device should be placed at
normal working environmental temperature for more than four hours
before use.

05
Inspection
Check the appearance of the device and accessory list before use, check
the quantity as if consistent with the manual. Please contact with the
distributor or manufacture soon as if any defective.
Operating Instructions
Appearance schematic diagram
Led Display
Oxygen Outlet
Nebulizer Outlet
Knob
Humidifier Water Tank
Infrared receptor
ON/OFF Switch
Stall Key
Timing +
Timing -
Power Switch Inlet Filtration
Muffler
Fuse
Power Interface

06
Air Filter Inspection
Before switching the device ,Please check if the air filter is in place and
keep it clean.
Connect Power Cord
Plug the output power cable into power supply sock of the oxygen,and
plug the other end of the power cord into the main socket.
Filling the Humidifier Water Tank
Open silica gel plug at top and fill pure water to the
highest water level line.
(Cool boiled water, distilled water and so on) *Do not
exceed water level line.
Make sure to cover the rubber plug before using, align
the positioning groove at the bottom of water tank and
then the outlet, put the humidification water tank back
to the main body.
Grip the top handle of the humidification water
tank by hand, pull out the water tank after
pressing.
Preparation Work
Rubber plug
Max water level

07
Connect Oxygen Tube
Connect Oxygen Tube
Connect the large-diameter end of
“oxygen tube” with “oxygen outlet
mouth”and connect the other end
with oxygen inhaler. If there are too
many drops of water in the water trap
during or after oxygen inhalation,
open the water trap and pour it clean.
Inhaler Wearing
Wear oxygen inhaler as shown in the picture. When using the earhook
inhaler, adjust the position of the oxygen outlet and point it at the nostril. If
using the inhaler nasal, just align the two outlets with the nostril and
tighten the rubber ring.
1. Before using the atomization function, please knob the nuts of atomiza-
tion.
port and place the nut in the hand-held groove position.
2. Connect the atomization port to the bottom of the atomization cup
through.
catheter, the atomizing cup can be poured into liquid medicine or diluted
liquid medicine as needed.( The maximum capacity of atomization cup is
8ml. Do not exceed the maximum scale), wear a mask or mouth contain-
ing type as required.
Nebulizer Function Using Method( Liquid Medicine from the Doctor)
3. Then press the oxygen button of the machine, transfer to 2L stall
oxygen.
state, Change the oxygen generator function into atomization function
4. After atomization, the liquid is injected into the human respiratory tract
through the atomization device.
5. After do atomization for approximately 30-35 minutes, then finished
atomization, press the oxygen key to shut down, removed the atomization
device, and clean the atomization cup, after dried and put it in a cool dry
pla.
6. Finally, re-twist the nut back to the atomization port, and tighten.
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.

08
Starting Oxygen Concentrator
Turn on the power switch, press the oxygen key, the machine starts to
make oxygen, adjust the flow meter, and then you can inhale oxygen
(please see the operation instructions on the panel or remote control for
details).
3. Then press the oxygen button of the machine, transfer to 2L stall
oxygen.
state, Change the oxygen generator function into atomization function
4. After atomization, the liquid is injected into the human respiratory tract
through the atomization device.
5. After do atomization for approximately 30-35 minutes, then finished
atomization, press the oxygen key to shut down, removed the atomization
device, and clean the atomization cup, after dried and put it in a cool dry
pla.
6. Finally, re-twist the nut back to the atomization port, and tighten.
DE-1LW LED Screen Display Instruction
1. Negative ion display
2. Preset time
3. Oxygen flow rate
4. Oxygen concentration
5. Cumulative time
6. Cooling fan
7. Sleep display
8. Fault alarm display:
compressor, speed motor, cooling fan
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.

09
Oxygen Key
Press “oxygen key”, display is fully lit ,and machine is in oxygen and
negative ion working condition,while the water tank light show blue. At
same time, the screen displays preset time and accumulated time. Under
working state, press the "oxygen key" to enter the standby state, and the
fan will be turned off after a delay of 3 minutes.
Flow Regulation
Adjust the flow rate by pressing “flow regulation key”. Customer can
control the oxygen flow rate according to their need. There are 1-7 stall
points, it’s corresponding to l-7L / min flow, oxygen flow increases and
oxygen concentration decreases.Switch on in power off condition, the
default flow value is 1L ,restart on standby. The value of the flow file will
retain the setting of the flow file when the device is turned off.
Timing Plus, timing minus key
Press“timing +” key to increase the timing each 15 minutes by one-way
cycle setting, maximum setting is 180 minutes. After 3 seconds of inactivi-
ty, the timing will start to count down until the timing automatically shuts
down.When press "timing -" key, the time will be setting decreased as
each 15 minutes from total 180 minutes.
Note: When operate functional key, it will be different at the statue of
display“ 000”
1.In the highlighted state, press functional key will directly reflect operat-
ing result.
2.In the power saving state, press functional key once to activate highlight
mode , press it again , then it will reflect operating result.
Press any key each time , the buzzer sound once. It will be in power
saving mode after 1 minute without operation.
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.

10
Cleaning, Care and Maintenance
Press “sleep ” key while in working , the display switches to sleep mode
after the sleep display symbol flashing 3 times. After pressing any key or
touch any function key on the panel , display waked up again.
Sleep Display
This machine is designed with accumulated time function. Record the
usage time every 20 minutes. After one hour, the display will increase by
one hour.
Accumulation function
If cooling fan fails during use, the display will show a red fan icon, accom-
panied by a buzzer alarm and the machine will stop working.
Automatic fault detection function
For other function, please refer to Quick Start Manual
DE-1LW Remote control instrument
1. ON/OFF Oxygen
2. Stall Key
3. Timing Plus Key
4. Timing Minus Key
5. Negative ion display
6. Sleep display
Cleaning housing unit
The surface of the housing should be cleaning at least once every month.
Disconnect the power cord before you clean it. Wipe it with a clean, mild,
damp cloth soaked with disinfectant.Do not let the liquid penetrate into the
machine.
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.

11
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.

12
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.
Use a small slotted screwdriver to pry off the fuse
holder cap
Spare Parts
Using
Replace a new fuse Put the fuse cap back to socket
Long-term Desposite process
Long-term Deposits
If oxygen concentrator is in unfrequency of use, please do these:
● Take out humidified water tank, pour water out,and put it back in place
● Cut off power supply, collect power cord.
● Keep oxygen concentrator storage in a normal temperature and dry
place without directly sunlight and pollution.
Please do as following if reuse the the oxygen concentrator
● Check if the electric is damaged.
● Check if the oxygen tube is disconnnected.
● Cleaning humidifier water tank.

13
Troubleshooting
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.
NO.
1
Phenomenon Cause analysis Solution
Odor in air.
2Water flows from the
oxygen outlet.
3
4
5
The machine lelse
"puff" sound every
several seconds
After startup, the
machine operates
well, the flowmeter
displays "0" or is
too small
After startup, there
is bubble in the
water tank,butthere
is no oxygen
getting out from the
oxygen outlet.
In the initial stage of using,
there is smell for the
connection tube and other
plastic parts. It is normal.
The water level of the
humidifier water tank is beyond
the highest water level, so the
airflow pressed the bubble into
the oxygen tube.
The machine has been
used for a long time, so that
the steam in the airflow
gathers on the tube wall.
lt is the sound of nitrogen
discharging which is normal
and is asign of fine working.
The flowmeter is off or the
value istoo small
The oxygen tube is twisted or
blocked.
The inner connection tube of
the machine is disconnected or
broken.
The silica gel stopper of the
humidifying water tank is not
properly positioned.
Turn up the oxygen flow.
Straighten the oxygen tube.
Disconnect the powercord and
contact professionals to repair it.
Remove the humidifying water
tank to plug the silica gel
stopper.
The humidifier water tank
hasn't been cleaned for a long
time or the water hasn't been
changed.
Clean the oxygen tube and
humidifier water tank.
Keep the water lower than the
highest water level.
pour the water in water tank.
And add water into the water
tank when there is no water
coming out from oxyhen outlet.
The odor that comes from
silicone tube and ABS rubber
parts is normal and non-toxic by
inspection.The odor will
disappear as time goes by.

14
If it still does not work as you have followed the solutions listed above,
do not disassemble the machine. Please consult the manufacturer for
assistance.
Cleaning water tank
To keep the water tank clean, the water used should be pure water,
distilled water or cold boiled water. we suggest to change water every day.
The water tank should be cleaned every week. First use mild detergent
and shake the tank to wash. Then use clean water to rinse it,
After cleaned the water tank, please remember to put water tank plastic
plug back to avoid leakage of oxygen from the water inlet, caused no
oxygen output from oxygen outlet mouth when the machine is in normal
working.
Air filter cleaning and replacement
The white air filter at the back of the machine can reduce noise, isolate
dust and purify the air. It should be cleaned around every ten days. First
use mild detergent to wash, and then rinse it with clean water. Pay special
attention that it must be dry to be positioned back, or the function of the
molecular sieve could be damaged, which will lead to decreased oxygen
concentration.
Cleaning oxygen Inhaler and atomizing components
Oxygen inhaler should be cleaned after use, and the nasal suction head
on the nasal inhaler should be cleaned and disinfected after use.
Soaking the inhaler in the solution of 5% potassium ferric acid for 5
minutes, cleaning with water, or wiped with alcohol. Oxygen tube as
consumable should be replaced regularly.
Fuse Replacement
After confirmed the power cord plug is out of power suppler outlet,using a
slotted screwdriver to pry off the fuse holder cap, take out the defective
glass fuse tube ,replace new one, put the cap back and tighten it.
NO.
6
Phenomenon Cause analysis Solution
After startup, the
in dicator light works,
but the machine does
not(the sound is
irregular).
Compressor malfunction.
The temperature is so high
that the self protection mode
of the oilfree compressor is
activated.
Separation valve mulfunction
The inner conection tube of
the machine is disconnected
or broken.
Disconnect the power cord and
contact professionals to repair
it.
lt is a normal case.When the
temperature lowers down, the
machine will restart automati-
cally.
Disconnect the power cord and
contact professionals to repair
it.
Disconnect the power cord and
contact professionals to repair
it.

15
Working Principle
The air comes into the compressor after compressed by air inlet filter unit,
and then it enters into molecular sieve tower to separate the oxygen and
nitrogen.The oxygen successfully goes through the molecular sieve tower
into the fine sieve tower.In contrast, the nitrogen is absorbed by the
molecular, then to be discharged into the atmosphere through the sepa-
rating valve. The oxygen concentration is enhanced in the fine sieve tower
and controlled flow size by flowmeter.Then the oxygen is humidified by
the humidifying water tank when it comes to it. Finally , the oxygen
reached the user through oxygen supply tube.

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