Plusmed pM-KN10 User manual

1
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Model:
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pM-KN10
Oxygen Concentrator
Oksijen Konsantratörü

USER’S MANUAL FOR OXYGEN CONCENTRATOR
Contents
1Foreword…………………………………………………………3
2Symbols…..........…………………………………………………4
3Safety not�ce……...............………………………………………5
4Product �ntroduct�on…....................................……..…………8
5Operat�on cond�t�on………….....………………………………8
6Scope of appl�cat�on…………..........……………………………8
7Techn�cal parameter………........………..………………………9
8Structures and Funct�ons……………….....……………………10
9Operat�on �nstruct�ons…………..........................................…12
10 Alarms and safety dev�ces.........………....…………………16
11 Ma�ntenance…...........………………………..……………17
12 Troubleshoot�ng…….........................................……………19
13 EMC Declarat�on..…....................................…………………21
14 Accessor�es………………………………………………………25
15 Cond�t�on for transportat�on and storage................................26
16 Qual�ty warranty.....................................................................26
17 Contact us…………………………………………………………26

USER’S MANUAL FOR OXYGEN CONCENTRATOR
1 Foreword
Thank you for purchas�ng our products, hop�ng you w�ll be sat�sf�ed w�th
our products.
Th�s operat�on manual conta�ns funct�on, operat�on steps, bas�c trouble
solut�on and so on.
To ensure your eff�c�ent use of the oxygen concentrator, please have a
close read of th�s operat�on manual before operat�ng �t.
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
2 Symbols
The follow�ng table �s a l�st of symbols and def�n�t�ons that used w�th the PM-KN10 Oxygen
Concentrator.
Symbol
Descr�pt�on
Symbol
Descr�pt�on
Warn�ng – Descr�bes a
hazard or unsafe pract�ce
that can result �n severe
bod�ly �njury or death
Ind�cat�ng �ts conform�ty w�th the
Med�cal Dev�ces D�rect�ve
93/42/EEC.The 0197 �s the
number of the Not�f�ed Body.
Caut�on – Descr�bes a
hazard or unsafe pract�ce
that can result �n property
damage
“ON” (power)
Follow User’s Manual “OFF” (power)
CLASS II equ�pment Ser�al number
Author�sed Representat�ve �n
the European Commun�ty
Separate collect�on for electr�cal
and electron�c equ�pment
Type BF Appl�ed Part,
F-TYPE APPLIED PART
comply�ng w�th the spec�f�ed
requ�rements of th�s
standard to prov�de a
h�gher degree of protect�on
aga�nst electr�c shock than
that prov�ded by TYPE B
APPLIED PARTS.
The symbol of Type BF
Appl�ed Part w�ll be pasted
on the outlet of oxygen.
Var�ab�l�ty, rotat�onal adjustment.
To �dent�fy the control by means
of wh�ch a quant�ty �s controlled.
The controlled quant�ty
�ncreases/decreases by rotat�on
w�th the f�gure w�dth.
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
Date of manufacture
~
Alternat�ng current
Manufacturer F250V6.3
AH Type and rat�ng of fuse
Frag�le, handle w�th care
Keep dry
Th�s way up
Stack�ng l�m�t by number
No open flame; F�re, open
�gn�t�on source and smok�ng
proh�b�ted
No smok�ng
3 Safety not�ce
:Th�s un�t �s not a l�fe-support dev�ce , and �n certa�n c�rcumstances oxygen therapy can
be hazardous, �t �s suggested that �f any pat�ent who needs oxygen treatment, please follow
doctor’s adv�ce to choose the r�ght flow and per�od for oxygen before us�ng the oxygen
concentrator.
:The dev�ce was expected to use �n a health care env�ronment and only tra�ned
Med�cal staff can operate the dev�ce
:In the event of an alarm, you observe your oxygen concentrator not work�ng properly,
or �f you feel d�scomfort, consult your Equ�pment Prov�der and /or your phys�c�an
�mmed�ately.
:Use only voltage spec�f�ed on rat�ng label.
:Th�s dev�ce manufactures h�gh concentrat�on oxygen, wh�ch promotes rap�d burn�ng.
Keep oxygen concentrator far away from open flames and no smok�ng around the pat�ent.
:Do not leave a nasal oxygen cannula under bed cover�ngs or cha�r cush�ons. If the un�t
�s turned on w�thout use, the oxygen w�ll help the flammable mater�al get f�re .
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
:Use no lubr�cants, grease, or petroleum-based products on or near your oxygen
concentrator.
:Electr�cal shock hazard. Do not remove covers wh�le the un�t �s plugged �n. Only your
Equ�pment Prov�der or a qual�f�ed serv�ce techn�c�an should remove the covers or serv�ce
the un�t.
:Care should be taken to prevent the un�t from gett�ng wet or allow�ng water to enter
the un�t.
:Use of th�s equ�pment adjacent to or stacked w�th other equ�pment should be avo�ded
because �t could result �n �mproper operat�on. If such use �s necessary, th�s equ�pment and
the other equ�pment should be observed to ver�fy that they are operat�ng normally.
: Portable RF commun�cat�ons equ�pment (�nclud�ng per�pherals such as antenna
cables and external antennas) should be used no closer than 30 cm (12 �nches) to any part
of the PM-KN10 med�cal oxygen concentrator, �nclud�ng cables spec�f�ed by the
manufacturer. Otherw�se, degradat�on of the performance of th�s equ�pment could result.
:The oxygen concentrator should be set to use �n an env�ronment w�thout dust,
corrupt�on or tox�colog�cal harm gas.
:Do not place the oxygen concentrator �n surround�ngs where �ts a�rflow �s obstructed.
:Do not place �tems on top of the concentrator.
:Always place the concentrator on a hard surface. Never place the concentrator on a
surface such as bed or couch, where the concentrator may t�p or fall.
:NEVER leave the concentrator unattended when plugged �n.
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
:Ensure the bottom smooth exhaust�on dur�ng operat�ng, or else the oxygen
concentrator w�ll be over-heated.
:5 m�nutes are needed from oxygen concentrator from warm�ng up to reach regular
funct�on and nom�nal performance.
NOTE: If oxygen does not seem to flow, f�rst ver�fy that the flowmeter ball �s reg�ster�ng a flow.
Then, place the t�p of the cannula �nto a glass of water; �f bubbles come out of the cannula,
oxygen �s flow�ng. If bubbles do not appear, turn off the oxygen concentrator �mmed�ately
and refer to Troubleshoot�ng.
NOTE: There �s never a danger of deplet�ng the oxygen �n a room when you use your
oxygen concentrator.
Rad�o Frequency Interference
Most electron�c equ�pment �s �nfluenced by Rad�o Frequency Interference (RFI). When
there �s strong electromagnet�c �nterference, maybe the LCD w�ll be sl�ghtly affected, but
the oxygen concentrator �s st�ll runn�ng. ALWAYS exerc�se CAUTION w�th regard to the use
of portable commun�cat�ons equ�pment �n the area around such equ�pment.
Requ�rement of env�ronment protect�on
The mater�als used �n the system won’t create env�ronment hazard. The pack�ng mater�als
of the system are recyclable, and they must be collected and d�sposed accord�ng to the
related regulat�on �n the country or reg�on where the package of the system or �ts
accessor�es �s opened. The nasal oxygen tube �s made of med�cal PVC, and �f �t �s thrown
away, �t could not be b�o-degradable, so �t w�ll cause the pollut�on. Any mater�al of the
system, that may cause pollut�on �n the env�ronment, must be collected d�sposed str�ctly
compl�ed w�th the local rules and requ�rements.
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
Contra�nd�cat�on
None.
4 Product �ntroduct�on
PM-KN10 med�cal oxygen concentrator �s a dev�ce that extracts oxygen from atmospher�c
a�r. It w�ll typ�cally be an electr�cally-powered molecular s�eve (art�f�c�al zeol�te) used to
separate n�trogen from amb�ent a�r. It could be appl�ed w�dely �n the hosp�tals at all d�fferent
level, cl�n�cs, health centers and health care for the old person, mental workers and
students, etc.. Whether the user �s profess�onal or not, the users could operate the oxygen
concentrator by themselves after read�ng th�s user’s manual.The oxygen concentrator can
supply 1-2 pat�ents s�multaneously, w�th steady oxygen flow�ng out, safe and rel�able, low
cost, adjustable flow. The key parts of the concentrator adopt ant�-t�r�ng and ant�-ag�ng
des�gn, and the planned l�fe of the whole concentrator reaches up to 20,000 hours or 5
years, wh�chever comes f�rst.
5 Operat�on cond�t�ons and Env�ronment
Amb�ent temperature: 10℃-40℃
Relat�ve hum�d�ty: 30%-85%
A�r pressure: 700 hPa-1060 hPa
Alt�tude: Up to 2286m w�thout degradat�on; Consult your equ�pment prov�der for further
�nformat�on regard�ng to 2286m to 4000m
No corros�ve gas and strong magnet�c f�eld around.
6 Scope of appl�cat�on:
For Med�cal Use:
Med�cal oxygen suppl�ed by the concentrator �s benef�c�al to cure the d�sease or heart and
blood vessel system, chron�c pulmonary system, the bra�n and blood vessel system,
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
chron�c pulmonary tuberculos�s, etc.
For Health care:
Med�cal oxygen can be used for athlet�cs and �ntellectuals and bra�n workers, etc. to
el�m�nate fat�gue and also su�t for the departments of health care, sanator�um, healthy,
plateau m�l�tary camps and hotels and other places where need oxygen.
7 Techn�cal Parameters
Model PM-KN10
Rated
power(VA)
880
Operat�on
voltage (V/Hz)
AC230/50
Oxygen flow
(L/m�n)
0.5-10
Oxygen
concentrat�on
(%)
93%±3%
Outlet
pressure
(Mpa)
0.04—0.07
Alarm
Po
wer fa�lure; low&h�gh pressure ; low pur�ty; temperature
No�se(dB(A)) ≤52
Large LCD
d�splay
P
ressure d�g�tal(accuracy:0.001MPa);
a
ccumulat�ng t�m�ng(range:0-99999hours);
p
resent t�m�ng(accuracy:1 m�nute);
p
resett�ng t�m�ng(accuracy:1 m�nute)
t
emperature d�g�tal(accuracy:0.1);
Electr�cal
category:
Class II, Type BF
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
Net We�ght
(kg)
27
D�mens�on
(mm)
365(deep)*375(w�dth)*600(he�ght)
Lowpur�ty
alarm (OCSI)
W
hen oxygen pur�ty �s

85%, the blue lamp �s on, when oxygen pur�ty �s
<
85%, red lamp �s on, �nd�cat�ng low pur�ty
A
ccuracy:±3%
Ma�ns Fuse F6.3AL/250V
8 Structures and Funct�ons
F�gure 1
F�gure 2
8.1 Ind�cat�ng Lamp
8.1.1 Total 8 �nd�cat�ng lamps and the�r �nd�cat�on for the model, such as PM-KN10 wh�ch �s
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
shown as F�gure 1, are as follows:
a. P.O.: power sw�tch (green lamp)
b. P.F.: power fa�lure(red lamp)
c. H.P.: h�gh pressure(red lamp)
d. L.P.: low pressure(yellow lamp)
e. H.T.: over heated temperature(red lamp)
f. H.O2: oxygen pur�ty �s

85%, (blue lamp)(Accuracy:±3%)
g. M.O2: no use
h. L.O2.:oxygen pur�ty �s < 85%,(red lamp)(Accuracy:±3%)
8.2 Power sw�tch
8.3 Oxygen flow meter
The locat�on of float �n the oxygen flow meter shows the outlet oxygen flow (L/m�n.).
8.4 Knob of oxygen flow meter sw�tch
It adjusts and controls the outlet oxygen flow.
Do not Sw�tch �t over-forced, or else �t �s easy to damage the valve core. Sw�tch �t
counterclockw�se to turn on, clockw�se to turn off.
8.5 Outlet for Atom�zat�on (opt�onal)
8.6 Intake a�r f�lter
Once need to replace, refer to 11.2
8.7 Storage cab�net(as shown �n F�gure 2 ○,7 )
It �s used for storage oxygen cannula
8.8 LCD d�splay( L�qu�d crystal d�splay )(as shown �n F�gure 1 ○,8）
a.. It can d�splay some status of dur�ng operat�on of the oxygen concentrator, refer to 7.on
page 9
b. When start�ng the oxygen concentrator, the LCD screen �s l�ghted, and �t w�ll return to
screen saver mode �n 15 m�nutes. But �f you press the r�ght key dur�ng work�ng, the screen
w�ll be l�ghted aga�n.
8.9 T�m�ng buttons(as shown �n F�gure 1 ○,9）
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
The two buttons are used for t�m�ng adjustment, and each press of the left button(△) w�ll
�ncrease t�m�ng by 10m�n, the max t�m�ng �s 40 hours. And each press of the r�ght button(▽)
w�ll decrease t�m�ng by 10m�n. When the r�ght button(▽) �s pressed to reduce t�m�ng t�ll “0”,
the oxygen concentrator w�ll turn off automat�cally.
8.10 Hum�d�f�er(as shown �n F�gure 1 ○,10）
Hum�d�f�er wh�ch �s used for hum�d�fy�ng oxygen and prevent�ng throat and nasal mucosa
st�mulated by dry oxygen and dry hard sputum d�ff�cult to sp�t out.
8.11 Knob of Atom�zer sw�tch (opt�onal) (as shown �n F�gure 1 ○,11 ）
8.12 Rat�ng label (as shown �n F�gure 2 ○,12 )
8.13 Appl�ance �nlet (as shown �n F�gure 2 ○,13 )
8.14 Holder(as shown �n F�gure 2 ○,14 )
9 Operat�on �nstruct�ons
:The plug �s the d�sconnect�on dev�ce of the oxygen concentrator, when the plug �s
pulled, there �s no power supply. In order to pull the plug eas�ly , be certa�n to place the un�t
where all s�des are at least 30 cm away from walls, draper�es, furn�ture, or other
obstruct�ons. Do not place the un�t �n a conf�ned area.
:Do not turn on or off frequently. To restart the oxygen concentrator after turn�ng off, no
less than 5 m�nutes are necessary (namely, exhaust �nternal gas of the oxygen
concentrator completely, for �f a�r compressor turns on w�th pressure, �ts l�fe w�ll be
shortened)
9.1 If used w�th a hum�d�f�er, unscrew the flask from the hum�d�f�er �n clockw�se d�rect�on,
pour �n proper d�st�lled water or cold bo�led water w�th�n the scale between the max l�ne and
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
F�gure 3
the m�n l�ne(see 11.4), then re-connect the top cover to the hum�d�f�er bottle, as shown �n
F�gure 7. The hum�d�f�er used w�th PM-KN10 must comply w�th the general requ�rement of
the 93/42/EEC European D�rect�ve as appropr�ate.
9.2. connect the nasal oxygen canula to the hum�d�f�er outlet nozzle or to the concentrator
outlet �f a hum�d�f�er has not been prescr�bed. Then set the nasal oxygen cannula over
pat�ent’s ears, �nsert the nasal oxygen cannula �nto pat�ent’s nostr�ls to absorb oxygen; The
nasal oxygen canula should be l�m�ted to 20 meters long, �n order to ensure that the oxygen
flow rate rema�ns w�th�n spec�f�cat�on values. The best absorb�ng t�me for health care keeps
40-50 m�nutes per t�me, absorb�ng t�me for med�cal treatment shall be followed doctor’s
adv�ce, as shown �n F�gure 4.
F�gure 4
9.3. Insert the power plug plug �nto the electr�cal outlet of the correct voltage and frequency
as def�ned �n 7(Techn�cal Parameters), and the power connector connected w�th the
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
appl�ance �nlet of the oxygen concentrator, then set the I/O power sw�tch to the “I” pos�t�on to
turn the un�t on, at the same t�me the O.P. lamp w�ll l�ght(8.1a).
F�gure 5
9.4. To set the flow of supplemental oxygen, turn the knob of oxygen flow meter sw�tch left or
r�ght unt�l the ball �ns�de the flowmeter centers on the flow l�ne number recommended
oxygen absorb�ng flow.(counterclockw�se—on, clockw�se—off).
F�gure 6
Flow value:
10pos�t�on flow value from 0.5 ~ 10L/m�n on flowmeter as shown �n f�gure 6. The max�mum
recommended flow: 10L/m�n.
In compl�ance w�th the ISO 80601-2-69 standard, the flow suppl�ed �s equal to the flow set
on the flowmeter, accurate to w�th�n

10% or 200ml/m�n, wh�chever �s the larger of the two
The var�at�on of the max�mum recommended flow does not exceed

10% of the �nd�cated
value when a back pressure of 7kPa �s appl�ed to the output of the dev�ce. The max�mum
outlet pressure �s 70kPa
Oxygen Concentrat�on:
-at 2L/m�n: >90%
-at 10L/m�n:93%(

3%)
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
:It �s very �mportant to select only the prescr�bed level of oxygen. Change the flow
select�on only under the gu�dance of your phys�c�an.
9.5. When f�n�shed the absorb�ng, set the I/O power sw�tch to the “O” pos�t�on to turn off the
un�t, �f there �s d�scont�nuous use, please unplug the power plug, as shown �n F�gure 7.
Unplugthe power plug
F�gure 7
9.6. If the pat�ent needs t�m�ng oxygen absorb�ng, please refer to 8.9
Atom�zat�on operat�on methods(for opt�onal)
The atom�zat�on funct�on of the concentrator �s appl�cable to help to cure the sufferers of
chron�c pulmonary tuberculos�s and resp�ratory system, etc.
:Atom�zat�on treatment must be under adv�ce and suggest�on of your phys�c�an.
:Us�ng d�st�lled water to do the atom�zat�on for several seconds after each operat�on
may l�ghten the crystall�zat�on caused by med�cal solut�on.
:If atom�z�ng cannot work then open the cover of the bottle and add clean water �n
small amount. Rotate the wh�te ball wh�ch l�es �n the bottle w�th the gas resource connected
and select the proper angle to ga�n a better atom�zat�on.
a. Open the cover of med�cal cup, and add atom�zat�on remedy that needed, then close the
cover.
b. Connect the jo�nt of atom�zat�on nozzle (or mask) w�th the cover of med�cal cup, and then
15

USER’S MANUAL FOR OXYGEN CONCENTRATOR
connect the other end of atom�zer connect�on tube w�th the atom�zat�on outlet and turn on
atom�zer.
c. Turn on the power of oxygen concentrator, and shut up flow meter, then �t �s ready for
atom�zat�on treatment.
d. Do clean the atom�zat�on dev�ces followed by the �nstruct�ons of the atom�zat�on dev�ces.
10 Alarms-Safety dev�ces
10.1 Alarms
a. Power fa�lure alarm: In case of a loss of ma�ns power or when the power cord �s not
plugged �nto the wall outlet, an aud�ble alarm �s act�vated w�th red �nd�cator on(8.1.1b ). The
troubleshoot�ng �s referred to 12 .
b. low&h�gh pressure alarm: There �s a pressure sensor on the ma�n board to check the
system pressure, when the pressure �s lower than 0.1Mpa,there �s an aud�ble alarm w�th
yellow �nd�cator on(8.1.1d ) and the oxygen concentrator �s st�ll work�ng; When the pressure
�s h�gher than 0.23Mpa,there �s an aud�ble alarm w�th red �nd�cator on(8.1.1c ) and the
oxygen concentrator �s stopped. The troubleshoot�ng �s referred to 12 .
c. Low oxygen concentrat�on alarm(OCSI): The oxygen concentrat�on w�ll r�se to the
normal level �n f�ve m�nutes of operat�on. When oxygen pur�ty �s

85%, the blue lamp
(8.1.1f ) �s on, when oxygen pur�ty �s <85%, red lamp �s on for aud�ble alarm, �nd�cat�ng low
pur�ty(8.1.1h). Refer to the troubleshoot�ng . Or call your suppl�er to serv�ce the dev�ce.
d. Temperature alarm: There �s a temperature sensor on the ma�n board to check the
�nternal temperature, when the temperature �s h�gher than 50°C �n the oxygen concentrator,
there �s an aud�ble alarm w�th red �nd�cator on(see H.T. on the lamp) and the oxygen
concentrator w�ll be stopped. The troubleshoot�ng �s referred to 12 .
10.2 Safety dev�ces
a. Compressor motor:
Thermal safety �s ensured by a thermal sw�tch s�tuated �n the motor w�nd�ng(145±5℃).
b. Safety valve:
Th�s �s f�tted on the compressor outlet and �s cal�brated to 2.5 bar(250kPa).
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
11 Ma�ntenance
:D�sconnect the power cord from the electr�cal outlet before you clean the cab�net.
:Do not operate the concentrator w�thout the f�lters �nstalled, or wh�le f�lters are wet.
These act�ons could permanently damage the concentrator.
NOTE: If legally b�nd�ng regulat�ons govern the �nstallat�on, serv�ce and/or the operat�on of
the product, �t �s the respons�b�l�ty for the operator to observe and follow these regulat�ons.
NOTE: Mod�fy�ng the product �s not perm�tted.
11.1. Clean the whole body: In the cond�t�on of power off, make a clean for the outs�de
body by soft towel w�th l�ttle m�ld household cleaner, and then w�pe �t up w�th dry towel,
once or tw�ce per month.
F�gure 8
11.2. Clean a�r f�lter: It �s a cr�t�cal step for da�ly ma�ntenance to clean �ntake a�r f�lter an
�nterval about 300 hours.
Deta�l steps: remove the two �ntake a�r f�lters on both s�des of the body, clean them w�th m�ld
household cleaner and clean �t w�th clean water completely, get r�de of extra water and dry
up naturally, f�nally set back after dry up, as shown �n F�gure 9.
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
A�r f�lter
F�gure 9
11.3. Clean secondary f�lter
Clean secondary f�lter an �nterval about 800 hours, open the top cover and take out storage
case，Rotate the a�r f�lter w�th counterclockw�se d�rect�on as F�gure 10,take down the f�lter
cloth, then clean �t w�th detergent, and then clean �t out w�th clean water completely, get r�d
of the extra water, and dry �t naturally, f�nally set back after dry up.
F�gure 10
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USER’S MANUAL FOR OXYGEN CONCENTRATOR
11.4. Clean the hum�d�f�er (�f the hum�d�f�er �s prescr�bed by a phys�c�an)
Da�ly:
- Empty the water from the hum�d�f�er.
- R�nse the hum�d�f�er flask under runn�ng water.
- F�ll hum�d�f�er up to the mask w�th d�st�lled water.
Regularly:
- D�s�nfect the hum�d�f�er parts by �mmers�ng them �n a d�s�nfectant solut�on(�n general, we
recommend us�ng water conta�n�ng a small amount of chlor�ne bleach).
- R�nse and dry.
- Check that the hum�d�f�er l�d seal �s �n good cond�t�on.
11.5. Clean Oxygen tub�ng and nasal cannula
Follow the manufacturer’s �nstruct�ons
11.6. Replacement of fuse tube
Remove the cover of fuse, wh�ch �s �n the appl�ance �nlet, d�smantle the fuse tube off by
small screwdr�ver. Close the cover of fuse after fuse tube �s replaced.
The other fuse tube �s located at the �ntake of �nternal power l�ne; the method of
replacement �s the same w�th that above.
F�gure 11
12 Troubleshoot�ng
If your concentrator fa�ls to operate properly, please refer to the troubleshoot�ng chart on the
follow�ng pages for probable causes and solut�ons. If problems w�th the equ�pment cont�nue,
19

USER’S MANUAL FOR OXYGEN CONCENTRATOR
please contact your Equ�pment Prov�der.
NOTE: If the un�t has not been used for an extended t�me per�od, �t needs to operate for
several m�nutes before power fa�lure alarm can become act�vated.
No.
Trouble Causes Solut�on
1
No
operat�on afte
r
po
wer connected an
d
t
he P.F. lamp �s l�gh
t
w
�th aud�ble alarm.
1
. No connect�on betw
een
c�rcu�t of oxyge
n
concentrator and power
2
. C�rcu�t of fuse protecto
r
broken.
3
. There �s no power supply.
1
. Check out whether sw�tch
,
plug, power l�ne �n goo
d
connect�on.
2
. Replace the fuse protecto
r
and f�nd the cause
2
No
oxygen out or t�n
y
ou
ttake flow
1
. Folded �ns�de oxygen tube
,
no smooth outtake
2
. F�lter clogged, no smoot
h
�ntake
3
. The cover of dampen bottl
e
leak�ng
1
. Connect the oxygen tub
e
aga�n
2
. Clean the f�lter
3
. Take off the cover, screw well
the cover, block the outtak
e
by thumb after turn�ng on
,
and there w�ll some sound
from the hum�d�f�er after
5
second around (the safet
y
valve of hum�d�f�er turns on)
3
No
exhaust sound
1
. A�r controller cannot work
2
. Electr�cal control boar
d
cannot work
1
.Have a�r control valve replaced
2
.Have electr�c control boar
d
re
placed
4
T
oo no�sy exhaust�on
1
. The jo�nt of exhaust�
on
muffler fallen off
2
. Exhaust�on muffler broken
1
.Connect the jo�nt well
2
.Have the muffler replaced
20