Weinmann WM 24675, WM 24610, WM 24600, WM 23210, WM 23200 Service Manual

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Servicing and

repair instructions

SOMNO

smart

smart PAP-device WM

24900

SOMNO

smart

with

SOMNO

click

24950

SOMNO

smart

with

SOMNO

click

300

24975

SOMNO

set

Titration Device WM

23200

SOMNO

set

with

SOMNO

support

23210

SOMNO

soft

CPAP device with

softPAP

exhalation relief and

therapy monitoring WM

24600

SOMNO

soft

with

SOMNO

click

24610

SOMNO

soft

with

SOMNO

click

300

24675

Contents

Introduction

. . . . . . . . . . . . . . . . . . . . . . . . .

Overview

. . . . . . . . . . . . . . . . . . . . . . . . . . .

Description

. . . . . . . . . . . . . . . . . . . . . . . . . .

2.1

Purpose of

SOMNO

smart

. . . . . . . . .

2.2

Purpose of

SOMNO

set

. . . . . . . . . . . .

2.3

Uses SOMNO

soft

. . . . . . . . . . . . . . .

2.4

Function of

SOMNO

smart

. . . . . . . . .

2.5

Function of

SOMNO

set

. . . . . . . . . . . .

2.6

Functional description of SOMNO

soft

. .

Servicing

. . . . . . . . . . . . . . . . . . . . . . . . . .

3.1

Intervals

. . . . . . . . . . . . . . . . . . . . . .

3.2

Filter change

. . . . . . . . . . . . . . . . . . .

–

Coarse dust filter

–

Fine filter

3.3

Cleaning the device

. . . . . . . . . . . . . .

3.4

Resetting the service symbol

. . . . . . . . .

3.5

Disposal

. . . . . . . . . . . . . . . . . . . . .

Hygienic preparation

. . . . . . . . . . . . . . . . .

4.1

Cleaning and disinfecting after use

. . . .

4.2

Cleaning and disinfection after repair

. .

4.3

Cleaning and disinfecting on change of

patient

. . . . . . . . . . . . . . . . . . . . . . .

4.4

Cleaning and disinfecting the

SOMNO

click/SOMNOclick 300

after use. . . . . . . . . . . . . . . . . . . . . .14

4.5 Cleaning and disinfecting the

SOMNOclick/SOMNOclick 300 on

change of patient . . . . . . . . . . . . . . .14

5. Test the device . . . . . . . . . . . . . . . . . . . . . . 15

5.1 General. . . . . . . . . . . . . . . . . . . . . .15

5.2 Performing the check . . . . . . . . . . . . .15

– Checking the power cord

– Checking the housing

– Checking display

– Checking pressure and button functions

– Checking OP signal (SOMNOsmart 2

and SOMNOset)

– Checking function of humidifier

6. Troubleshooting . . . . . . . . . . . . . . . . . . . . . 20

7. Repair Information and Instructions . . . . . . . 22

7.1 General. . . . . . . . . . . . . . . . . . . . . .22

7.2 Opening the device . . . . . . . . . . . . . .23

7.3 Closing the device. . . . . . . . . . . . . . .24

7.4 Replace Displayboard . . . . . . . . . . . .25

7.5 Replacing the fascia film . . . . . . . . . . .26

7.6 Changing fuses on the Powerboard . . .26

7.7 Replacing the Powerboard . . . . . . . . .27

7.8 Replacing the Smartboard/Softboard . .30

7.9 Replacing battery on Smartboard or

Softboard. . . . . . . . . . . . . . . . . . . . .31

7.10 Replacing transformer . . . . . . . . . . . . .31

7.11 Replacing the oscillation generator

(SOMNOsmart 2 and SOMNOset only) .34

7.12 Replacing the microphone

(SOMNOsmart 2 and SOMNOset only) .35

7.13 Replacing Smartbox/Comfortbox . . . . .35

7.14 Replacing the fan. . . . . . . . . . . . . . . .36

7.15 Replacing lower part of housing . . . . . .41

7.16 Replacing upper part of housing. . . . . .42

8. Tools, testing equipment and disinfectants . . 44

8.1 Tools. . . . . . . . . . . . . . . . . . . . . . . .44

8.2 Testing equipment and fixtures . . . . . . .44

8.3 Disinfectant. . . . . . . . . . . . . . . . . . . .45

9. Spare parts . . . . . . . . . . . . . . . . . . . . . . . . 46

9.1 Spare parts list . . . . . . . . . . . . . . . . .46

9.2 Spare parts required for servicing . . . . .48

10. Technical data . . . . . . . . . . . . . . . . . . . . . . 50

10.1 Specifications . . . . . . . . . . . . . . . . .50

10.2 Pressure-Volume curve. . . . . . . . . . . . .51

10.3 Safety distances . . . . . . . . . . . . . . . .52

11. Repair and service record . . . . . . . . . . . . . . 53

The content and presentation are copyright protected and may only be used by authorised Weinmann Service Partners in the

course of their service operations. The content must not be reproduced or passed on to third parties. The complete documents

must be returned on termination of the cooperation with Weinmann.

Introduction 3

Introduction

For decades Weinmann has been developing,

manufacturing and marketing devices for sleep

apnoea therapy, inhalation therapy, oxygen

therapy and emergency medical care.

With its SOMNOcomfort and SOMNOvent S

and ST, and also SOMNOsmart 2, SOMNOset

and SOMNOsoft +, Weinmann offers a

graduated therapy concept from treatment of

sleep-related respiratory disorders to treatment of

global respiratory insufficiency.

The aim of these service and repair instructions is

to familiarize you, as a trained expert in the field,

with the function, technology, servicing and repair

of the SOMNOsmart 2, SOMNOset and

SOMNOsoft +. This will enable you to give your

customers proper instructions, eliminate faults

yourself, perform the tests specified in the operating

instructions, carry out any repairs and service the

device in accordance with these service and

repair instructions.

In the event of a guarantee claim, the devices must be

sent to Weinmann.

To enable us to process ex gratia requests or

warranty claims, please enclose the customer’s

proof of purchase (invoice) with the device.

Repairs or servicing work may be performed only

by Weinmann or by trained specialist staff.

You are responsible for repairs carried out yourself

and for their warranty!

Use only original Weinmann spare parts for repairs.

Please bear in mind:

Your customer trusts you and relies on your expert

capability, just as you rely on Weinmann.

Note:

For the following information, please consult the Operating Instructions for the individual devices:

• Safety instructions

• Preparing for use

• Operation

• Cleaning and disinfecting after use

• Guarantee

4 Overview

1. Overview

SOMNOsmart 2, SOMNOset and SOMNOsoft +

SOMNOsoft

1 hPa 1 cmH

1 Therapy device

5 Control panel

and display

7 Device outlet port

10 Adapter

6 Humidifier connection

11 Pressure measurement tube

13 Exhalation system

4 Ports

3 Power cord

Control panel and display SOMNOsmart 2

15 Cap

8 Stopper (2x)

14 Mask

12 Hose system

Control panel and display SOMNOset

2 Bacteria filter

9 Drying adapter

21 LC display

22 Humidifier

activated

23 Service symbol

18 Change filters

27 Humidifier button

(Levels 1-6)

26 Softstart button

24 On/Off button

20 Therapy pressure

19 Pressure rise/Pressure

drop and softPAP mode

activated

28 Humidifier

indicator

lamp

16 Softstart symbol

17 Total therapy time /

Daily therapy time

ini

21 LC display

22 Humidifier

activated

23 Service symbol

27 Humidifier button

(Levels 1-6)

26 Softstart button

24 On/Off

button

20 Therapy pressure

25 Set button

16 Softstart symbol

17 Total therapy time /

Daily therapy time

18 Change filters

28 Humidifier

indicator lamp

ini

19 Pressure rise/

Pressure drop

Control panel and display SOMNOsoft +

21 LC display

22 Humidifier

activated

23 Service symbol

20 Therapy pressure

16 Softstart symbol

19 softPAP mode

activated

27 Humidifier button

(Levels 1-6)

26 Softstart button

24 On/Off

button

17 Total therapy time /

Daily therapy time

18 Change filters

28 Humidifier

indicator lamp

Overview 5

Dev

ce com

nat

ons

-A

31 Rating plate

30 Power connection

32 Carrying bag

35 SOMNOclick/

SOMNOclick 300

33 Power inverter

34 O

switching valve

29 Filter cover

6 Description

2. Description

Note:

SOMNOsmart 2, SOMNOset and SOMNOsoft + are of largely identical basic design. They differ only in

the software, display and fascia film. SOMNOsoft + has no oscillation generator and no microphone.

2.1 Purpose of SOMNOsmart 2

SOMNOsmart 2 is a smartPAP device for treating

sleep-related respiratory disorders.

SOMNOsmart 2 generates positive airway

pressure (PAP).

SOMNOsmart 2 is a self-regulating device. It

recognizes respiratory events and varies the

airway pressure accordingly.

While the patient is asleep, the airways are

braced by the air pressure generated.

Airway pressure is administered by means of a

mask.

SOMNOsmart 2 can be used for people aged

12 years or more.

SOMNOsmart 2 from software version 6.0; in gener-

al from device no. 10,000: The softPAP mode in-

creases patient comfort by means of a brief

pressure reduction during the transition from inha-

lation to exhalation.

Important!

SOMNOsmart 2 can reliably prevent closure of

the airways only if the upper and lower pressure

limits specific to the patient and prescribed by a

doctor have been determined, e.g. in a sleep

laboratory, and set accordingly.

SOMNOsmart 2 is not suitable for use as a life-

support system.

2.2 Purpose of SOMNOset

SOMNOset is a device for efficient adjustment to

CPAP patients. The device can work on a stand-

alone basis or in conjunction with the remote

control SOMNOadjust or an extended user

interface of the SOMNOsupport software. The

recorded data can also be visualized and

evaluated with the aid of SOMNOsupport.

SOMNOset permits titration without the patient

coming to a sleep laboratory. Titration can be

carried out in the patient's familiar surroundings.

SOMNOset generates positive airway pressure

(PAP).

SOMNOset may be operated as a self-regulating

device. In that case SOMNOset recognizes

respiratory events and varies the airway pressure

accordingly.

While the patient is asleep, the airways are

braced by the air pressure generated.

Airway pressure is administered by means of a

mask.

In the Autotitration mode the device determines,

during the titration night, a therapy pressure

(recommended titration pressure) that largely

prevents closure of the upper airways.

From the data recorded, the physician can

determine the required therapy pressure. This

pressure is set on the therapy device which is given

to the patient for long-term therapy following

titration.

SOMNOset can be used for people aged 12

years or more.

Important!

SOMNOset is not suitable for use as a life-support

system.

Description 7

2.3 Uses SOMNOsoft +

SOMNOsoft + is a CPAP device for treating sleep-

related respiratory disorders.

SOMNOsoft + generates positive airway pressure

(PAP).

The softPAP mode increases patient comfort by

means of a brief pressure reduction during the tran-

sition from inhalation to exhalation.

SOMNOsoft + recognises respiratory events. This

permits efficient therapy control.

During sleeping, the patient’s airways are braced

by the air pressure generated.

Airway pressure is administered by means of a

mask.

SOMNOsoft + can be used both in CPAP mode

and in softPAP mode for individuals aged 12 years

or more.

Important!

SOMNOsoft + can reliably prevent closure of the

airways only if the therapy pressure specific to the

patient and prescribed by a physician has been

determined, e.g. in a sleep laboratory.

SOMNOsoft + is not suitable for use as a life-sup-

port system.

2.4 Function of SOMNOsmart 2

SOMNOsmart 2 works on the principle of an

electrically powered flow generator delivering an

electronically controlled constant pressure level.

A radial fan draws in ambient air through a filter

and conveys it to the device outlet port. From here

the air flows through the hose system and the mask

to the patient.

An oscillation generator creates a slight sinusoidal

pneumatic oscillation in the air flow produced by

the device.

The airway and oscillation pressure is registered

via the pressure measurement tube in the mask.

The current oscillation pressure reading is

compared with an average value and the

preceding values. This evaluation of the oscillation

pressure makes it possible to identify any

significant change in airway resistance and hence

to increase or reduce the therapy pressure via the

flow generator.

The pressure present in the mask is shown in the LC

display. The microprocessor-controlled flow

generator regulates the pressure at the value

determined.

The device also records a respiratory flow signal

that can be output to a PSG system or read off with

the aid of SOMNOsupport. This makes it possible

to identify apnoea, hypopnoea and respiratory

flow limitations.

The exhalation system before the mask prevents

accumulation of CO

-enriched expired air in the

hose system.

Auto switch-on can be activated on the

SOMNOsmart 2. The device can then be

switched on by breathing into the mask. If there is

no pressure for about 5 seconds (e.g. because the

mask is taken off), the SOMNOsmart 2 switches

off automatically.

Following a power failure and resumption of the

power supply, the status of SOMNOsmart 2 is the

same as it was before the power failure. The

stored data remain preserved.

There are two functions designed to make it easier

to go to sleep: (soft-)start or start pressure function.

(Soft-)start function: When this is switched on, the

pressure is adjusted to the (soft-)start pressure set by

the physician. The pressure limits then gradually in-

crease to the set values. The time taken for this in-

crease is adjustable. This function is suitable for

patients who find the high pressure unpleasant

while they are awake.

Additional function from software version 6.0:

Start pressure function: The pressure remains at the

set value throughout the start period. At the end of

the start period, the pressure is reduced to the low-

er pressure limit. This function is suitable for

patients who find low pressure unpleasant while

they are awake, or who need high pressure quick-

ly after they have gone to sleep.

8 Description

In softPAP mode the respiratory flow curve is ana-

lysed continuously to ensure timely recognition of

the transition between inhalation and exhalation.

Before the transition to exhalation the therapy pres-

sure is reduced to make it easier to breathe out.

The size of this pressure reduction can be set in two

stages: “slight” (stage 1) and “normal” (stage 2).

This increases patient comfort. Before the next in-

halation phase, the pressure is raised to the thera-

py figure once again.

If apnoea or valid flow limitations occur while the

patient is sleeping, the softPAP mode is automati-

cally deactivated for the relevant period. If the res-

piratory frequency is too high, the softPAP mode is

also temporarily deactivated. However, the thera-

py pressure remains reduced during this period.

In full face mode the device supports therapy with

a full face mask. The event-related pressure adjust-

ment is modified accordingly.

2.5 Function of SOMNOset

SOMNOset works on the principle of an

electrically powered flow generator delivering an

electronically controlled constant pressure level.

A radial fan draws in ambient air through a filter

and conveys it to the device outlet port. From here

the air flows through the hose system and the mask

to the patient.

An oscillation generator creates a slight sinusoidal

pneumatic oscillation in the air flow produced by

the device.

The airway and oscillation pressure is registered

via the pressure measurement tube in the hose

system.

The current oscillation pressure reading is

compared with an average value and the

preceding values. This evaluation of the oscillation

pressure makes it possible to identify any

significant change in airway resistance and hence

to increase or reduce the therapy pressure via the

flow generator.

The pressure present in the mask is shown in the LC

display. The microprocessor-controlled flow

generator regulates the pressure at the value

determined.

The values determined are recorded. In

Autotitration mode, the recommended therapy

pressure is calculated at the end of the titration

night.

The device also records a respiratory flow signal

that can be output to a PSG system or read off with

the aid of SOMNOsupport. This makes it possible

to identify apnoea, hypopnoea and respiratory

flow limitations.

The exhalation system before the mask prevents

accumulation of CO

-enriched expired air in the

hose system.

To make it easier for the patient to go to sleep, an

automatic Softstart system is incorporated for the

APAP and CPAP modes. When this is switched on,

the pressure is reduced to the Softstart pressure set

by the physician. The therapy pressure then

gradually increases to the set value. The period for

the pressure rise can be set in 5-minute steps

between 0 and 30 minutes. The automatic

Softstart system can be locked out by the

physician.

Auto switch-on can be activated in APAP and

CPAP modes. The device can then be switched on

by breathing into the mask. If there is no pressure

for about 5 seconds (e.g. because the mask is

taken off), the SOMNOset switches off

automatically.

If the power supply is interrupted and then

restored, data recording starts afresh in all modes.

In that case, pressure adjustment and event

evaluation restart in the Autotitration and APAP

modes. In the Pressure Profile and CPAP modes,

titration or therapy are continued in the status that

was active before the interruption. The stored data

remain recorded despite the interruption.

Description 9

2.6 Functional description of SOMNOsoft +

SOMNOsoft + works on the principle of an elec-

trically powered flow generator delivering an elec-

tronically controlled constant pressure level.

A radial fan draws in ambient air through a filter

and conveys it to the device outlet port. From here

the air flows through the hose system and mask to

the patient.

The airway pressure is registered via the pressure

measurement tube in the mask.

The pressure present in the mask is shown in the LC

display. The microprocessor-controlled flow gener-

ator regulates the pressure at the set value.

In softPAP mode the respiratory flow curve is ana-

lysed continuously to ensure timely recognition of

the transition between inhalation and exhalation.

Before the transition to exhalation the therapy pres

sure is reduced to make it easier to breathe out.

The size of this pressure reduction can be set in two

stages: “slight” (stage 1) and “normal” (stage 2).

This increases patient comfort. Before the next in-

halation phase, the pressure is raised to the thera-

py figure once again.

If apnoea or valid flow limitations occur while the

patient is sleeping, the softPAP mode is automati-

cally deactivated for the relevant period. If the res-

piratory frequency is too high, the softPAP mode is

also temporarily deactivated. However, the thera-

py pressure remains reduced during this period.

The device also records a respiratory flow signal

that can be output to a PSG system or read off with

the aid of SOMNOsupport. SOMNOsoft + recog-

nises apnoea, hypopnoea and respiratory flow

limitations. This permits efficient therapy control.

The exhalation system in front of the mask prevents

accumulation of CO2-enriched expired air in the

tube system.

An automatic Softstart system is provided to enable

the patient to go to sleep more easily. When this

is switched on, the pressure is reduced to the Soft-

start pressure set by the physician. The therapy

pressure then gradually increases to the set value.

The period for the pressure rise can be set in 5-

minute steps between 0 and 30 minutes. The auto-

matic Softstart system can be locked out by the

physician.

Auto switch-on can be activated on the

SOMNOsoft + The device can then be switched

on by breathing into the mask. If there is no pres-

sure for about 5 seconds (e.g. because the mask

is taken off), SOMNOsoft + switches off automati-

cally.

Following a power failure and resumption of the

power supply, the status of SOMNOsoft + is the

same as it was before the power failure. The

stored data remain preserved.

10 Servicing

3. Servicing

3.1 Intervals

The two filters 45 and 46 need to be checked regularly for soiling.

• Coarse dust filter 45 must be changed every 6

months.

• Fine filter 46 must be changed at least every

250 operating hours.

• The pressure measurement tube 11 must be

changed at least every 6 months – and more

frequently if soiling is heavy.

For hygiene reasons we recommend:

• replacing the complete mask system every 6 to

12 months depending on soiling, and

• replacing the expiration system in accordance

with the relevant operating instructions.

See the section on “Cleaning” in the relevant

operating instructions.

The following preventive maintenance measures must also be carried out:

1. Service after every 5000 operating hours

(service symbol 23 appears in display and

must be reset after every service).

2. Service after a maximum of 2 years (see

service label on back of device).

3. The parts exposed to the air flow must be

cleaned every 10,000 hours or 4 years.

4. Every 2 years the battery on the Smartboard or

Softboard must be replaced.

After every service, replace the service label 87

with one bearing the new data (see “9. Spare

parts” on page 46). Use a hole punch or nail

scissors (V-shaped notch) to mark the month. Affix

the new service label to the left of the filter cover.

3.2 Filter change

3.2.1 Coarse dust filter

1. To ensure that no water runs into the device 1

when changing the filters, disconnect the

humidifier 35 from the device. Also observe

the operating instructions supplied.

2. Slightly raise the rear of the device or push the

back of the device off the edge of the table a

little, so that you can reach under the filter

cover 29.

Servicing 11

3. Press with your thumb on the underside of the

filter cover 29 and lift the cover off.

4. Pull out the coarse dust filter 45 with your

finger.

5. You can wash a soiled coarse dust filter in

clean water and reuse it after drying

thoroughly.

6. Insert the clean coarse dust filter 45.

7. Insert the filter cover 29 in the opening in the

housing with its upper edge first.

8. Using a finger to press in the catch on the

underside of the cover, fit the cover so that it

clicks into place.

9. If appropriate, fit the humidifier. Observe the

section “3.4 Humidifier” in the operating

instructions.

3.2.2 Fine filter

1. Remove the coarse dust filter 45 as described

under “3.2.1 Coarse dust filter”.

2. Remove the fine filter 46.

The fine filter must be changed if it has turned dark

grey, and in any case after 250 operating hours.

In the latter case the filter change symbol

appears.

3. Insert the new filter and filter cover 29 in

reverse order.

4. To clear the filter change symbol, hold down

the on/off button 24 when switching on the

device until the symbol disappears from the

display.

If the fine filter is changed because of soiling

before 250 operating hours are reached, the hour

counter must be reset to zero:

5. To do so, hold down the On/Off button 24

when switching on the device. After about 3

seconds the filter change symbol lights up and

after another 3 seconds it disappears. Now

you can release the button.

3.3 Cleaning the device

The parts exposed to the air flow must be cleaned

and disinfected every 10,000 hours or every 4

years. This must be done as described in Chapter

“4.3 Cleaning and disinfecting on change of

patient” on page 13.

After every service a test must be performed in

accordance with Chapter “5. Test the device” on

page 15.

12 Servicing

3.4 Resetting the service symbol

After every service/repair the service hours counter must be reset to “0”, and the service symbol 23 in the

display must be cleared. A new service label (current year + 2 years) must also be affixed to the back of the

device.

1. To reset the service hours counter to “0” or to

switch off the service symbol, hold down the

Softstart button 26 with the device switched off

until A0/A1 or soft0/soft1/soft2

appears in the display.

2. Now press the On/Off button 24 as well until

an S (for “service key”) appears.

3. Now release both buttons.

4. Briefly pressing the On/Off button 24 clears

the service key. If you want set the service

symbol again, press the On/Off button 24

again.

3.5 Disposal

Do not dispose of the device with

domestic waste. To dispose of the device

properly, please contact a licensed,

certified electronic scrap disposal

merchant. This address is available from

your Environment Officer or from your

local authority.

ini

2426 2523

SOMNOsoft

1 hPa 1 cmH

Hygienic preparation 13

4. Hygienic preparation

4.1 Cleaning and disinfecting after use

Caution!

This point is described in Chapter 5 “Cleaning and Disinfection” of the SOMNOsmart 2, SOMNOset or

SOMNOsoft + operating instructions.

Hygienic preparation of the device after repairs and for a new patient is described below.

4.2 Cleaning and disinfection after repair

In the event of repairs the following work should be performed by the qualified dealer.

Caution!

Be sure to follow the disinfectant manufacturer’s

instructions (8.3, page 45). You are

recommended to wear suitable gloves (e.g.

household or disposable gloves) during

disinfection procedures.

• Wipe outside of device and power cord with

TERRALIN disinfectant.

• Clean hoses, cap and mask as described in the

operating instructions or replace with new parts

(depending on condition).

• Open device as described in 7.2.

• Replace the coarse dust filter and fine filter 45

+ 46 as described in Chapter 3.2.

• Clean the inside of the device and filter

housing with a vacuum cleaner. Thoroughly

clean any specially dirty parts.

• Close device as described in 7.3.

4.3 Cleaning and disinfecting on change of patient

When making the device hygienic for a new patient, the following steps must be carried out:

Caution!

Be sure to follow the disinfectant manufacturer’s

instructions (8.3, page 45). You are

recommended to wear suitable gloves (e.g.

household or disposable gloves) during

disinfection procedures.

• Wipe outside of device and power cord with

TERRALIN disinfectant. Dispose of hose and

mask system and carrying bag, and replace

with new parts.

• Open device as described in Chapter 7.2.

• Clean the inside of the device and filter

housing with a vacuum cleaner. Thoroughly

clean any specially dirty parts.

• Replace the coarse dust filter and fine filter 45

+ 46 as described in Chapter 3.2.

• Spray-disinfect device outlet 7, filter holder 44

and filter cover 29 twice with “MIKROZID

LIQUID”, taking care to wait for the prescribed

disinfection time in each case. At the

beginning of the disinfection time, also wipe

the accessible surfaces with a cloth moistened

with “MICROZID LIQUID”.

Caution!

No disinfectant residues must be left in the

pressure measurement stub of the device outlet

port 7; if necessary the pressure measurement

stub must be blown dry.

• Replace OPS delivery tube 61 (only

SOMNOsmart 2 and SOMNOset).

14 Hygienic preparation

• Open box 62/63 as described in Chapter

7.14.

• Replace both labyrinths 64 and 66, motor

frame 65, box damper insert 69 and cover

damper insert 68. Remove fan cap from fan.

• Spray-disinfect the box, fan and fan cap twice

with “MIKROZID LIQUID”, taking care to wait

for the prescribed disinfection time in each

case. At the beginning of the disinfection time,

also wipe the accessible surfaces with a cloth

moistened with “MICROZID LIQUID”.

• Spray-disinfect fan blade twice with

“MIKROZID LIQUID”. The fan blades must not

be exposed to any mechanical forces.

• Dip-disinfect connecting tube 59 mit

“GIGASEPT FF”.

• Close box 62/63 again as described in

Chapter 7.14.

• Alternatively, box 62/63 can be replaced by

an exchange box (see “7.13 Replacing

Smartbox/Comfortbox” on page 35).

• Close appliance as described in Chapter 7.3.

Wipe housing and power cord with TERRALIN

disinfectant.

• Set service symbol and clear it again, to reset

the service hours counter to “0” (see “3.4

Resetting the service symbol” on page 12).

• Test the device.

• Use SOMNOsupport to clear the patient data

stored in the device. Observe the relevant

operating instructions.

4.4 Cleaning and disinfecting the SOMNOclick/SOMNOclick 300

after use

This point is described in Chapter 4 “Cleaning and Disinfection” of the SOMNOclick or SOMNOclick 300

operating instructions.

4.5 Cleaning and disinfecting the SOMNOclick/SOMNOclick 300

on change of patient

When making the device hygienic for a new patient, the following steps must be carried out:

• For hygiene reasons we recommend replacing

the plastic parts after a maximum of 2 years’

use. The spare parts list can be found in the

SOMNOclick/SOMNOclick 300 operating

instructions (WM 16719).

• If plastic parts and heating element are badly

soiled or covered with lime scale, offer the

customer a new device, otherwise:

Proceed as described in Chapter “4. Hygienic

preparation” of the SOMNOclick/

SOMNOclick 300 operating instructions

(WM 16719).

Test the device 15

5. Test the device

5.1 General

Important

A test is required after every service or repair.

Please enter the following figures in your service

record sheet (see Page 53):

For SOMNOsmart 2: operating hours, humidifier

level, Softstart time and Softstart initial pressure,

and the patient’s pressure limits and pressure rise

rate as shown in the patient pass.

For SOMNOset: operating hours, humidifier level,

Softstart time and Softstart initial pressure, and the

patient’s pressure limits and pressure rise rate as

shown in the patient pass, and also the mode.

For SOMNOsoft +: operating hours, humidifier

level, Softstart time and Softstart initial pressure,

CPAP pressure and mode.

If the test reveals faults or deviations from the

specified values, the device must not be used

again until the faults are rectified.

To find out what may be causing the faults and

how to remedy the malfunction, see Chapter „6.

Troubleshooting“ on page 20.

5.2 Performing the check

5.2.1 Checking the power cord

1. Check the power cord 3.

Make sure that

– the insulation is sound,

– the cable is undamaged,

– there are no loose connections.

2. If necessary, change the power cord 3.

5.2.2 Checking the housing

Check the general condition of the housing.

– If the housing is damaged or faulty, replace

the relevant side of the device (see „7.15

Replacing lower part of housing“ on

page 41 or „7.16 Replacing upper part of

housing“ on page 42).

16 Test the device

5.2.3 Checking display

1. Check that the fascia film of the control panel

5 is flat all over and firmly in place. If it is not,

replace the fascia film (see “7.5 Replacing the

fascia film” on page 26).

2. Now fix up the power supply by connecting

one end of the power cord 3 to the device and

the other to the wall socket.

3. Press the On/Off button 24. The LC display 21

appears.

4. Briefly open and close the device outlet port.

The LC display changes.

5. Switch off the device with button 24. The day’s

therapy duration appears briefly in the LC

display 21. Then only “0” is left showing on the

LC display 21.

5.2.4 Checking pressure and button functions

1. Assemble the device ready for use with hose

system 12, mask 14 and power cord 3

attached.

Note:

If the SOMNOset is in Autotitration or Pressure

Profile mode, switch to APAP or CPAP.

2. With the device switched off, press the

Softstart button 26 repeatedly until the current

auto switch-on setting (A0 or A1) appears in the

display.

Note:

if the exhalation relief setting (soft0/soft1/

soft2) appears in the display, first press the

humidifier button 27 to switch to the auto

switch-on setting.

3. If necessary, press the On/Off button 24 to

change the setting to A1.

– The device will now be switched on

automatically as soon as breathing through

the mask starts (pressure > 0.5 hPa),

– When the mask is removed, the device must

switch off after 5 seconds.

4. The day’s therapy duration appears briefly in

the LC display 21. After that, only “0” is left

showing on the LC display 21.

5. Press the On/Off button 24 to switch the

device on. For 3 seconds the display shows

the total use time 17.

6. Close the opening of the mask, e.g. with your

thumb or hand, and hold it closed.

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Test the device 17

7. If Softstart is switched on, switch it off by

pressing button 26. The radial fan delivers air

through the hose system to the mask, and the

current pressure in hPa is shown in the LC

display 21.

8. Compare the pressure shown in the LC

display 21 with the prescribed minimum

pressure limit. After approx. 1 minute the

difference must be not more than ± 0.2 hPa.

9. Use a pressure gauge to check the set pressure

at the connection stub of the mask.

– To do so, remove one stopper.

– Connect a pressure gauge to the open

connection stub.

Compare the reading with the figure shown on

the LC display 21. After approx. 1 minute the

difference must be not more than ± 0.4 hPa.

10. Press button 26 to switch on Softstart. The

Softstart symbol 16 appears and the LC

display 21 shows the Softstart time. At the

same time the pressure is reduced to the initial

Softstart pressure.

The Softstart function can be locked out by the

physician. In that case the Softstart initial

pressure shown in the display is “– –”.

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