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

...
Servicing and
repair instructions
SOMNO
smart PAP-device WM 24900
SOMNO
smart
SOMNO
2
with
smart
SOMNO
Titration Device WM 23200
SOMNO
set
with
SOMNO
CPAP device with
therapy monitoring WM 24600
SOMNO
soft
+
with
smart 2
SOMNO
2
with
WM 24975
SOMNO
softPAP
SOMNO
SOMNO
support
exhalation relief and
click
WM 24950 click 300
set
WM 23210
soft +
click
WM 24610
SOMNO
soft
+
with
SOMNO
click 300
WM 24675
Contents
Introduction
1.
Overview
2.
Description
2.1
2.2
2.3
2.4
2.5
2.6
3.
Servicing
3.1
3.2
3.3
3.4
3.5
4.
Hygienic preparation
4.1
4.2
4.3
4.4
4.5 Cleaning and disinfecting the
5. Test the device . . . . . . . . . . . . . . . . . . . . . . 15
5.1 General. . . . . . . . . . . . . . . . . . . . . .15
5.2 Performing the check . . . . . . . . . . . . .15
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
Purpose of Purpose of Uses SOMNO Function of Function of Functional description of SOMNO
Intervals Filter change
Coarse dust filter
Fine filter
Cleaning the device Resetting the service symbol Disposal
Cleaning and disinfecting after use Cleaning and disinfection after repair Cleaning and disinfecting on change of
patient Cleaning and disinfecting the
SOMNO
after use. . . . . . . . . . . . . . . . . . . . . .14
SOMNOclick/SOMNOclick 300 on
change of patient . . . . . . . . . . . . . . .14
– 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
SOMNO SOMNO
SOMNO SOMNO
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
click/SOMNOclick 300
smart 2
. . . . . . . . .
set
. . . . . . . . . . . .
soft
+
. . . . . . . . . . . . . . .
smart 2 set
. . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
. . . . . . . . .
soft
+
. . . . . . . . .
. . . .
. .
. .
10
10 10
11 12 12
13
13 13
13
3
4
6
6 6 7 7 8 9
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
7.10 Replacing transformer . . . . . . . . . . . . .31
7.11 Replacing the oscillation generator
7.12 Replacing the microphone
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
Softboard. . . . . . . . . . . . . . . . . . . . .31
(SOMNOsmart 2 and SOMNOset only) .34
(SOMNOsmart 2 and SOMNOset only) .35
© Copyright Weinmann GmbH & Co. KG. 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.
2

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
Introduction 3

1. Overview

SOMNOsmart 2, SOMNOset and SOMNOsoft +
15 Cap
14 Mask
13 Exhalation system
12 Hose system
11 Pressure measurement tube
6 Humidifier connection
8 Stopper (2x)
10 Adapter
9 Drying adapter
7 Device outlet port
5 Control panel
and display
Control panel and display SOMNOsmart 2
17 Total therapy time /
16 Softstart symbol
23 Service symbol
Daily therapy time
22 Humidifier
activated
21 LC display
18 Change filters
19 Pressure rise/Pressure
drop and softPAP mode activated
20 Therapy pressure
2 Bacteria filter
3 Power cord
1 Therapy device
4 Ports
24 On/Off button
28 Humidifier
indicator lamp
27 Humidifier button
(Levels 1-6)
26 Softstart button
Control panel and display SOMNOset
17 Total therapy time /
16 Softstart symbol
23 Service symbol
Daily therapy time
P
ini
22 Humidifier
activated
21 LC display
18 Change filters
19 Pressure rise/
Pressure drop
20 Therapy pressure
Control panel and display SOMNOsoft +
16 Softstart symbol
23 Service symbol
17 Total therapy time /
Daily therapy time
22 Humidifier
activated
20 Therapy pressure
21 LC display
18 Change filters
19 softPAP mode
activated
P
ini
24 On/Off
25 Set button
26 Softstart button
28 Humidifier
indicator lamp
SOMNOsoft
28 Humidifier
indicator lamp
27 Humidifier button
(Levels 1-6)
+
1 hPa 1 cmH2O
27 Humidifier button
(Levels 1-6)
24 On/Off
26 Softstart button
button
button
4 Overview
Device combinations
31 Rating plate
29 Filter cover
30 Power connection
33 Power inverter
R
LE
D
N
A
W
R
IN
C
E
-A
T
C
R
D
E
V
IN
C
-A
C
D
O
U
T
35 SOMNOclick/
32 Carrying bag
34 O2 switching valve
SOMNOclick 300
Overview 5

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.

2.2 Purpose of SOMNOset

SOMNOset is a device for efficient adjustment to CPAP patients. The device can work on a stand­alone 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.
SOMNOsmart 2 from software version 6.0; in gener­al from device no. 10,000: The softPAP mode in-
creases patient comfort by means of a brief pressure reduction during the transition from inha­lation 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.
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.
6 Description

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 tran­sition 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.

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.
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.
The exhalation system before the mask prevents accumulation of CO2-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 in­crease to the set values. The time taken for this in­crease 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 low­er pressure limit. This function is suitable for patients who find low pressure unpleasant while they are awake, or who need high pressure quick­ly after they have gone to sleep.
Description 7
In softPAP mode the respiratory flow curve is ana­lysed continuously to ensure timely recognition of the transition between inhalation and exhalation. Before the transition to exhalation the therapy pres­sure 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 in­halation phase, the pressure is raised to the thera­py figure once again.

2.5 Function of SOMNOset

If apnoea or valid flow limitations occur while the patient is sleeping, the softPAP mode is automati­cally deactivated for the relevant period. If the res­piratory frequency is too high, the softPAP mode is also temporarily deactivated. However, the thera­py pressure remains reduced during this period.
In full face mode the device supports therapy with a full face mask. The event-related pressure adjust­ment is modified accordingly.
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 CO2-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.
8 Description

2.6 Functional description of SOMNOsoft +

SOMNOsoft + works on the principle of an elec- trically 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 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 gener­ator regulates the pressure at the set value.
In softPAP mode the respiratory flow curve is ana­lysed 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 in­halation phase, the pressure is raised to the thera­py figure once again.
If apnoea or valid flow limitations occur while the patient is sleeping, the softPAP mode is automati­cally deactivated for the relevant period. If the res­piratory frequency is too high, the softPAP mode is also temporarily deactivated. However, the thera­py 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 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 5­minute steps between 0 and 30 minutes. The auto­matic 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 pres­sure for about 5 seconds (e.g. because the mask is taken off), SOMNOsoft + switches off automati­cally.
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.
Description 9

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.
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.
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.

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.
10 Servicing
87
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.
29
45
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.
46
45
After every service a test must be performed in accordance with Chapter “5. Test the device” on page 15.
Servicing 11

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.
23
26
P
ini
24

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.
23
SOMNOsoft
+
2426 2523
24
1 hPa 1 cmH2O
26
12 Servicing

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).
Hygienic preparation 13
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).
14 Hygienic preparation

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.

5.2 Performing the check

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.
5.2.1 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).
Test the device 15
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.
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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.
16 Test the device
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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.
Stopper
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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Test the device 17
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