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Savina
Instructions For Use Manual
132 pgs2.77 Mb0
Service Manual
365 pgs3.64 Mb1
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Dräger Savina Service Manual

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Page 1
5664.900 Savina
Test Certificates
Periodic Manufacturer’s
Service (PMS)
US Electrical Safety Test
Electr. Safety Test Form
Index Contents Navigation
Repair Instructions
Service Strategy
Maintenance Procedure
Service Mode
Error List Alarm Messages Repair Information/Error Events Repair Procedure
Technical Service Bulletins
TSBs
Conversions
List of Conversions
Drager
MEDICAL
Spare Parts Lists
US Spare Parts List
Software Download Software Versions
Schematics and Diagrams
Schematics and Diagrams
Function Descriptions
Function Description
Operating Instructions
US Operating Instructions
For information only:
English Instructions for Use French Instructions for Use Spanish Instructions for Use
Page 2
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Drager Medizintechnik GmbH
Manuals" and the "Spare Parts Lists".
Navigation Savina Version 2.0
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Drager Medizintechnik GmbH
Navigation Savina Version 2.0
Page 3
Page 4
Contents
Navigation
Navigation tips
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Periodic Manufacturer’s
Device in general
Replacement
Electrical safety test
Service (PMS)
of
wear and tear parts
15
20
21
Report:
Annex
Service Strategy
Items to be repaired/Repair
General notes
Maintenance
Procedure
locations
42
43
46
47
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Functional
tests
Place fully functional disposal.
Confirmation
Drager Medizintechnik GmbH
of
test
Savina Version 2.0
unit at user's/owner's
27
41
41
Replacing filter and sealing ring in 02 pressed gas inlet
com¬
49
02
pressure
Replacing the 02
reducer
pressure reducer
57
.
57
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Page 5
Contents
Adjusting the 02 pressure
Replacing the blower unit
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Replacing the internal rechargeable 67
Replacing the real-time clock on the Control PCB
Service Mode
reducer
.59
batteries
61
70
Test Step 0
Test Step 1 .80 Test Step 2
Test Step 3
.
.
80
80
81
Test Step 4
Test Step 5
Test Step 6
.
.
.
81
82
83
Test Step 7 Test Step 8
Test Step 9
. .
.
84 84
85
reserved.
Copyright
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only. use
internal For
D5664900TECIVZ.fm
General
Internal Service Mode
Entering the Internal Service Mode
List of test steps
.
Description of the test steps .80
Drager Medizintechnik GmbH
Savina Version 2.0
Test Step 10 .86
73
Test Step 11 .87
Test Step 12 .87
74
Test Step 13 .88
.
74
Test Step 14 .88
78
Test Step 15 .89
Page 5
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Contents
Test Step 16 .89
Test Step 17 .90 Test Step 18 .92
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Test Step 19 .94
Test Step 20 .96
Test Step 21 .96
Test Step 22 .98
Test Step 23 .98 Test Step 24 .99
Test Step 25 .99
Test Step 26 .100
Test Step 27 .100
Exiting Service Mode
.
107
Error List
Structure
of
error list
108
Software master processor
109
(MP) error group
Master processor
ror group 01
(MP) read-only memory er¬
112
Master processor 116
(MP) RAM error group 02
reserved.
Copyright
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only. use
internal For
D5664900TECIVZ.fm
PC Service Mode
Required equipment
.101
Entering the PC Service Mode
Drager Medizintechnik GmbH
Savina Version 2.0
101
.
102
Internal AD converter software (MP) error
group 03
Internal communication
software (MP) error
Page 6
117
Page 7
Contents
group 04
Watchdog
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Front processor 119
ROM front processor
RAM front processor
Internal AD converter
(MP) error group 05
(FP) software error group 10
(FP) error group 11 120
(FP) error group 12 123
software (FP) error
117
118
Software FP and MP error group 20
RTC error group 30
Power pack error group 40
Operating voltages error group 41
126
127
128
131
Blower error group 42
137
Cooling error group 43
138
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
group 13
Internal communication group 14
software (MP) error
Watchdog (FP) error group 15
Drager Medizintechnik GmbH
Savina Version 2.0
124
System relief error group 44
139
124
126
Loudspeaker
GoldCap error group 51
error group 50
140
141
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Contents
Auxiliary alarm error group 54
Airway pressure
60
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measurement
Expiratory flow measurement 145
Inspiratory flow measurement 146
02 concentration 63
measurement
error group
141
142
error group 61
error group 62
error group
147
Ambient pressure
ror group 66
measurement
with S6 er¬
152
02 supply pressure group 67
measurement
error
153
SiSW MP error group 98
SiSW FP error group 99
Alarm Messages
153
160
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Airway temperature
group 64
Ambient pressure
ror group 65
Drager Medizintechnik GmbH
measurement
measurement
Savina Version 2.0
Ventilation monitoring
error
with S7 er¬
151
151
Upper airway pressure
First pressure limit .
Second pressure limit (Paw high + 5 mbar)
Lower airway pressure limit
Minute volume .175
limit .168
.
.
168
168
170 172
Page 8
Page 9
Contents
MV low .175
MV high .177 Inspiratory tidal volume .179
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VTi low .179
VTi high .181
Oxygen concentration
.183
Fi02 low .183
Fi02 high .185
Fi02 limit values .187
Change in breathing cycle .188
Apnea .188
User functions
Standby activation
.199
.
Flow monitoring .200
02 monitoring .201
Mask ventilation (NIV) .203
Nebulization .204
Inspiration hold .205
199
Monitoring of sensors
Airway pressure sensors
Expiratory flow sensor
.206
.209
206
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Fail to Cycle .191
Apnea ventilation .193
High respiratory
ASB >4 seconds
frequency
.195
Inspiratory airway temperature
Drager Medizintechnik GmbH
Savina Version 2.0
.194
.197
Expiratory flow sensor faulty .
Expiratory flow sensor not positioned correctly .211 Inspiratory flow sensor
Oxygen sensors
Breathing-gas
.213
temperature
.
sensor at Y-piece .215
209
212
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Contents
Breathing-gas temperature sensor faulty .
Breathing-gas temperature sensor disconnected
Ambient pressure sensors
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Device internal temperature
Monitoring of actuators
.
sensors
.218
Expiratory valve .219 Monitoring of PEEP .221
Expiratory resistance
Gas supplies
.226
(PEEP high)
.
Air intake .226
.
215
216
217
219
223
Boot procedure
Testing of watchdogs
5-V voltage monitoring test
.
.
.
System relief .237
Timer .238
Settings
Boot sequence
.
.240
Memory .241
RTC battery .241
Data retention in EEPROM and RTC RAM .242
RAM .243
234
234 236
239
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Blower
.
Speed adaptation .229 No oxygen .231
Oxygen supply high .233
Monitoring of central system
Drager Medizintechnik GmbH
Savina Version 2.0
2
28
234
ROM .244
Operating voltages .246
Power pack
.
Charge state of internal battery .248
Status of internal battery .250
248
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Page 11
Contents
Power failure .252 Main switch .254
Ambient pressure
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Device internal temperature
.
.258
2
Device fan .259
Keypad . Loudspeaker
.
2
Auxiliary alarm .263
Device reset
Repair Information/Error
.
Events
2
56
260
62
65
Unit cannot be switched off .
Remedy 1 .272
Remedy 2 .272 Error when updating from SW 1.00 to 1.10 .273
SW 1.01 to 1.10 update procedure Possible errors during 02 calibration
Repair Procedure
Opening the unit
Opening the operator control panel
Removing the rear panel
.
.274
.
.
272
275
277
278
281
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Known errors
Reworking the cover of the 02 sensors
Warning message
"!!! No int. battery"
.
"Starting aid" for charging of internal battery
Drager Medizintechnik GmbH
Savina Version 2.0
.268
.
266
2
69
271
Power pack
Measuring the supply voltages
Motor Commutator
.285
PCB
285
287
Page 11
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Contents
View of the Motor Commutator
Pin assignment
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Fan
Pin assignment
02 Diaphragm
of
the Motor Commutator
of
the fan .289
PCB
Replacing the 02 Diaphragm PCB .290
Pin assignment of the 02 Diaphragm PCB .293
Bypass valve VI
PCB .287
PCB 288
289
290
295
Software Download
Required equipment
302
Download
Downloading
305
medical equipment software to PC ..
304
Downloading
Bootstrap
Required test equipment
.305
download
.311
310
Installation and use of the bootstrap download pro¬
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Expiratory valve V3
Replacing the EEPROM
Replacing the Control PCB
Drager Medizintechnik GmbH
Savina Version 2.0
gram .312
295
296
300
Software Versions
Overview of the different software (SW) versi¬ ons
Page 12
319
Page 13
Contents
Description
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Schematics
of
changes
and Diagrams
320
Function Description
General
Working principle
.
Monitoring .337
Front view Savina
323
Principal components
Rear view of Savina
Identification
02
Valve PCB .328
Control PCB
of
.
PCBs
325
Electronics
328
330
Power pack
Control PCB Motor Commutation PCB .346
.
.339
.
336
3
36
338
340
343
reserved.
Copyright
27.08.01
only. use
internal For
D5664900TECIVZ.fm
Front Panel PCB
02
DiaphragmPCB
Pneumatic
.
diagram
.333
Savina tubing diagram
Drager Medizintechnik GmbH
Savina Version 2.0
02
331
Valve PCB
02
Diaphragm PCB .349
Fan .350
334
Operator Control Panel
Front Panel PCB .352
335
Display .353
.
348
.
351
Page 13
Page 14
Contents
Membrane keypad .
Control knob
.
Pneumatic system .
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Ventilation function .
02
mix . Pneumatic safety devices Nebulizer function .
02
calibration function .
Sensors .
.
353
353 354
358
359
360
360
361 361
reserved.
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internal For
D5664900TECIVZ.fm
Conversion
Instructions
List of Conversions
Drager Medizintechnik GmbH
Savina Version 2.0
363
Page 14
Page 15
Draser
File no.:
Edition
Manufacturer’s
Service (PMS)
Periodic
5664.900
08.2001
DragerService
Explanation of Symbols
—
1
o
/
n
For internal use only. Copyright reserved.
OK
Defect/error/fault
Spare parts used
Report
Accessories missing
SW 01 .n SW 02.n
Device in general
Composition of the inspection price: Basic unit with one expiratory valve. Additional expiratory valves must be charged separately.
Installation site:
Savina
Z = Check condition
F = Check function
D = Check for leaks
P = Enter value
Serial no.:
Date of delivery/ startup:
Invoice no. or delivery no.:
Other:
1.1
1.2
1.3
1.3.1
Software version
Enter software version of Savina.
Options as per rating plate
BIPAP/PCV+
Autoflow
Central alarm
NIV (mask ventilation, SW 02.n or later)
Operating hours
The operating hours can be read out under
"Config" in the Savina menu.
Total hours of operation
Enter total operating hours.
P
1.3.2
Service operating hours
Operating hours since last sen/ice.
15
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1.4
1.4.1
General condition
Accompanying documents
Z
1.4.2
1.4.2.1
1.4.2.2
1.4.3
1.4.3.1
1.4.3.2
Instructions for use and medical product logbook available according to operators.
Device rear panel
Dust filter set
Replace dust filter, if necessary. Dust filter must not be pressed together.
Ambient air filter
Replace ambient-air filter, if necessary.
Power pack
DC connection for external battery.
Connection has no visible damage.
Cooling air fan
Switch on the unit. Check condition and
functioning of cooling air fan. Switch off the
unit.
Z
Z
Z
Z
Z F
1.4.4
1.4.5
1.4.5.1
1.4.6
1.4.7
02
inlet block.
Inlet block is fitted with NIST, DIN or DISS connectors.
Check condition and tightness of inlet block. Z D
Inspiration block
Check condition of inspiration block.
Inspiratory socket
Check condition of inspiratory socket.
Nebulizer connection
The nebulizer connection is marked with a
nebulizer symbol.
Flow sensor mount (flow sensor)
The flow sensor can be inserted into its mount
and moved to the right and to the left without effort.
Z
Z
Z
Z F
1.4.7.1
Flow sensor
The flow sensor is undamaged.
Z
16
Page 17
1.4.8
Expiratory valve mount
1.4.9
1.4.9.1
Check locking function.
Expiratory valve(s)
Enter serial number of valves:
Valve 1:
Valve 2:
Valve 3:
Expiratory valve, complete
See also test item 2.1.
Z F
1.4.10
1.4.10.1
Inspect the following components. To do so, remove the respective expiratory valve:
Diaphragm, complete Non-return valve Flow sensor sleeve, complete Lip seal (for pressure measurement) Expiratory socket Water trap container
Valve 1:
Valve 2:
Valve 3:
Assemble each expiratory valve ready for use.
Savina front panel
Keypad, control knob, and display
Z
Z
Z
Keypad, control knob, and display are undamaged (for example, have no scratches
that could affect the view).
Z
Page 18
1.4.11
"Savina Mobil" trolley
1.4.11.1
1.4.11.2
1.4.12
Castors
Wheels, of which 2 locking. Check screw
fittings for secure seating to 25 Nm.
Trolley accessories
Check condition and function of the following accessories (if fitted):
Humidifier holder (optional)
Cylinder holder (optional)
"Multiple socket outlet" retrofit kit (option)
Battery pack (option, in trolley pedestal)
External battery connecting cable
Unit accessories
Check condition and function of the following accessories (if fitted):
Hinged arm (if fitted)
Z F
Z F
Z F
1.4.13
1.4.14
1.4.15
Temperature sensor (if fitted)
Compressed gas connecting tubes
Compressed gas connecting hoses comply
with national regulations.
For example, compressed gas connecting hoses with sealing rings, neutral color
for 02
NIST connectors, 3 m,
for 02
NIST connectors, 5 m,
Hose systems
Hose systems correspond to specifications in
the Instructions for Use/Operating
Instructions.
Adult test lung
Check condition and completeness of adult
test lung.
The adult test lung comprises the following
components: Face mask angle piece Catheter connector, ISO, size 7 Breathing bag, 2 L
Z
ZD
Z
Z
1
The breathing bag must not be overstretched.
18
Page 19
1.4.16
Drug nebulizer (white housing)
1.4.16.1
Additional note: The drug nebulizer, 84 05 000, (black housing), must not be used in Savina.
Condition test
Check the condition of the following components:
1 Patient connection 2 Nebulizer housing 3 Gasket 4 O ring 5 Nozzle 6 O ring 7 Atomizer 8 Container 9 Nebulizer hose
1.4.16.2
1.4.17
Z
Functional test
Fill nebulizer housing with water up to mark. Supply drug nebulizer with 2.0 bar ±
0.2 bar.
Test: Vapor must be produced.
Special accessories (if provided)
Check condition and function of the following special accessories (if available):
Resutator 2000
Child Resutator 2000
Unit options and configuration
— Not applicable —
the "3"
F
Z F
19
Page 20
2
2.1
.
Replacement of wear and tear parts
* Replace diaphragm, complete, 84 13 661, in
the expiratory valve.
2.2
2.3
2.4
Next replacement:_
Replace internal batteries (rechargeable), 18 41 416, (x2) every 2 years (see also chapter "Maintenance Procedure Replacing the internal rechargeable batteries").
Next replacement:_
* Replace batteries (rechargeable), 18 43 303,
(if fitted, x2) in Savina Mobile every 2 years.
Next replacement:_
* Replace
02 filter, 84 08 208, and sealing ring, M 09 257, in valve block, complete, every 6 years. (see also chapter "Maintenance Procedure Replacing filter and sealing ring in 02 compressed gas inlet").
2.5
2.6
2.7
Next replacement:_
* Replace 02 pressure reducer, 84 13 666, in
valve block, complete, every 6 years.
(see also chapter "Maintenance Procedure 02 pressure reducer").
Next replacement:_
* Replace real-time clock, 18 45 527, on
Control PCB, every 6 years. (see also chapter "Maintenance Procedure Replacing the real-time clock on the Control PCB").
Next replacement:_
Note: After changing the real-time clock re¬ enter the date and time.
* Replace the blower unit with the "motor
blower unit" spares set, 84 13 643, after 20000 hours' operation. (see also chapter "Maintenance Procedure Replacing the blower unit").
20
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Electrical safety test
See document" Electrical Safety Test in the USA/Canada".
Record measured values in the document "Electrical Safety Test Form Savina".
Page 22
22 23 24 25 26
Page 23
Page 24
Page 25
Page 26
Page 27
4.
4.1
Functional tests
Power pack
4.1.1
4.1.2
Connect mains power and 02 supply. Switch on the unit.
Testing the "electrical supply" display
The LEDs on the front of Savina show the following operating states:
Mains power supply: green External battery: off Internal battery: Green: Internal rechargeable batteries are
fully charged. Yellow: Internal rechargeable batteries are
being charged.
Testing the internal supply voltage
Cut mains power.
The unit continues to ventilate. Audible alarm
sounds and display message "!! Int. battery activated" appears.
The LEDs on the front of Savina show the following operating states:
Mains power supply: off External battery: off Internal battery: green
F
F
F
4.1.3
Testing the supply voltage failure alarm
Connect device to the mains power supply.
Remove the fuse for the internal rechargeable battery. The fuse is located on the rear panel of the unit.
Disconnect the device from the mains power supply.
Ventilation off. All LEDs are off. Audible alarm sounds.
Switch off the unit. Restore mains power. Re-insert fuse for internal rechargeable battery. Switch unit back on.
F
27
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4.1.4
Testing the external d.c. voltage supply
4.1.4.1
A
Battery operation simulation
Notice: Maximum test duration = 1 minute!
“Connect Charge tester (Evita), complete" to d.c. voltage input of Savina (use the two lower sockets).
Using "DC voltage source, 3-18 V" apply a
voltage of 14 V to the charge tester.
After 6
seconds, at the latest, the LEDs on the
front of Savina show the following operating
states: Mains power supply: green External battery: green Internal battery: Green: Internal rechargeable batteries are
fully charged. Yellow: Internal rechargeable batteries are
being charged.
Reduce the voltage from the DC source from
14 V to 11 V.
The LEDs on the front of Savina show the following operating states:
Mains power supply: green External battery: yellow Internal battery: Green: Internal rechargeable batteries are
fully charged. Yellow: Internal rechargeable batteries are
being charged.
F
F
28
Page 29
4.1.5
On-board electrical system simulation
4.2
Short-circuit the two upper sockets on the d.c.
voltage input of Savina using the "Cable for
charge tester".
Set the voltage from the d.c. source to 14 V and wait for the "External battery" LED to light up green.
Reduce the voltage from the DC source to
11 V.
The LEDs on the front of Savina show the following operating states:
Mains power supply: green External battery: green Internal battery: Green: Internal rechargeable batteries are
fully charged. Yellow: Internal rechargeable batteries are
being charged.
Remove the charge tester. Switch off the unit.
Tests in internal service mode
F
4.2.1
Switch on Savina and, at the same time, press and hold the backlighting dim-up/dim-down key and the "Config" key until the sen/ice mode is activated (see also chapter "Service Mode Entering the Internal Service Mode").
Checking the RS232 interface
Test Step 0 : call up this test step.
Connect PC to Savina using "RS232 extension" and "RS232 adapter, crossed". Start terminal program and adjust the
following:
COM 1 (or corresponding) Baud rate: 19200 Data bits: 8 Parity: None Stop bits: 1 Protocol: None
The settings on the PC must match those in the Medibus log of the Savina in the
"Configure" menu.
Carry out "Send Logbook" function in internal service mode.
Test value:
The content of the error log is displayed on the PC (terminal program).
F
29
Page 30
4.2.2
Testing the keys
4.2.3
4.2.4
Call up test steps 1 and 2 in sequence (as of SW 1.10)
Check the functioning of all keys.
Test value:
All keys should function properly.
Nebulizer flow test
Test Step 13: call up this test step.
Connect a flowmeter tube with an oxygen scale of up to 16 L/min to the nebulizer connection. Switch on the nebulizer valve.
Test value:
Nebulizer flow = 8 L/min to 14 L/min.
Comparing measurement functions of the
flow sensors
Test Step 14: call up this test step.
F
P
4.2.5
Connect (short-circuit) the inspiratory and the expiratory sockets using a ventilation hose. Set the "PRESSURE BYPASS" value to 40 mbar.
Test value:
The measured inspiratory and expiratory flows
must not differ by more than 13%.
Offset voltages of the airway pressure sensors
Call up test 19.
Test values:
"V_PAW_INSP" = 730 mV ±100 mV
"V_PAW_EXP" = 730 mV±100 mV
P
P
P
30
Page 31
4.2.6
Testing LEDs, 7-segment displays, and LC
display
4.2.7
Call up test step 25
Set "Test target" value to "LED”.
Test value:
All LEDs should be evenly lit.
Set "Test target" value to "LCD".
Test value:
The display shows no pixel errors.
Set "Test target" value to ”7-segment”.
Test value:
All 7-segment displays are lit evenly.
Plausibility test
Compare ambient pressure sensors.
Test Step 27: call up this test step.
02
supply pressure sensor with
F
F
F
Cut the
02
supply and relieve the pressure.
Test value:
The three displayed values must not differ by
more than 7%.
Switch off the unit. Cut the connection to the PC.
P
31
Page 32
4.3
Leak test, inspiration
A=" B=" C~
Test set-up:
Using the syringe build up a pressure of 40 mbar ±1 mbar at the inspiratory port.
Test value:
The volume injected via the syringe in 15
seconds must be < 25 mL.
D
32
Page 33
4.4
Leak test, expiration
Remove the flow sensor (Spirolog sensor (A)) and sleeve (B). Seal the outlet of the expiratory valve and use the syringe to build
up a pressure of 40 mbar +2 mbar.
Test set-up:
r
Drager
□
□
□
□ □ □□□□
Test value:
n
□
000
□□□□
©
□
□
D
(£3
n
CO
!
□□□
□
Pressure gauge —30 to 120 mbar
-1
Syringe
4.5
The volume injected via the syringe in 15
seconds must be < 25 mL.
Testing of "120 mbar valve D1”
Test set-up:
Increase the pressure until a flow rate of
120 L/min +5 L/min is achieved.
D
Test value:
The pressure at the inspiratory port must be
>100 mbar and <120 mbar.
P
33
Page 34
4.6
Testing "Emergency respiratory valve D2
(emergency air valve)"
A="
B="
c~
Test set-up:
<*>-
Flowmeter 10 to 120 L/min
Pressure gauge —30 to 120 mbar
0
□
□
CXI
□
0
w
0
□ □
□
□
□
CXI
CXICX1
□ □ □□□□
| * 3ZIJ
Length of hoses up to Y-piece:
1.2 m each
CXI ^
□□□□□
Z7
4.7
Switch off the unit. Through the test pressure regulator with injector set a flow of 60 L/min ±3 L/min.
Test value: The pressure at the Y-piece must be between —3 mbar and —6 mbar.
02 supply pressure monitoring
Switch on the unit.
Disconnect the
Set the
Audible alarm sounds and display message
"III No 02" appears.
Restore the 02 supply.
02 concentration to 50%.
02
supply.
P
F
34
Page 35
[HU
4.8
Flush flow "expiration pressure measurement R1"
The 02 concentration of the flush flow
corresponds to the set 02 concentration (select respective flowmeter tube).
Switch on the unit. Remove the expiratory
valve.
Test set-up:
Flowmeter 0 to 0.2 L/min
4.9
Test value:
The flush flow must be in the range
> 0.02 L/min and < 0.2 L/min.
Testing valves V8/V9 (emergency venting)
and tightness of "Emergency respiratory valve D2"
Connect unit to test lung and adjust the
following parameters:
Operating mode = IPPV, AutoFlow OFF, Pmax OFF, Vt = 0.5 L,
Tinsp = 5 s, f = 6 1
02 = 21%, PEEP= 5 mbar, Paw high = 10 mbar above peak pressure
Seal Spirolog sensor.
Test value (pressure curve shown on display):
Pressure build-up to "Paw-high limit", then drop to < 6 mbar.
P
/min,
F
4.10
Testing the "Backlighting11
Press the "Backlighting" key.
key
The backlighting comes on or goes off.
F
35
Page 36
Testing the contrast
4.13
Change the contrast in the "Config" menu.
The contrast of the display changes.
Testing the micro-filter detection
Remove the micro-filter The micro-filter is located on the rear panel of Savina behind the
filter cover.
Audible alarm sounds and display message
"III No ambient air filter" appears.
Fit micro-filter and cover.
Testing the Spirolog sensor detection
Remove the Spirolog sensor (flow sensor).
Audible alarm sounds and display message "III Flow Sensor?'1
Re-insert the Spirolog sensor.
appears.
F
F
F
4.14
4.14.1
4.14.2
Testing the temperature measurement
Test using AWT sensor dummy
Connect the AWT sensor dummy and switch
to "Test" and 34 °C.
Read out temperature value from "Values" menu of Savina.
Test value: Display = 34 °C il °C
Remove the AWT sensor dummy.
Testing of temperature sensor (if fitted)
Connect the temperature sensor and take a reference measurement at room temperature.
Test value:
Permissible deviation between display on Savina and hermometer: 2 °C
F
F
36
Page 37
4.15
4.15.1
Testing the ventilation
Testing ventilation and 02 mixing in IPPV
mode
Set the following values: Operating mode = IPPV, AutoFlow OFF, Pmax OFF, Vt = variable,
Tinsp.= 5 s, f = 6 1
02 = 40 vol%, PEEP = 5 mbar, Paw alarm limit = max
Test set-up:
/min,
37
Page 38
Test value:
Test 02 concentration using a separate 02
analyzer, e.g. Oxydig. The value indicated by Savina must be 40 vol.% il vol.%. Read out Vte from "Values" menu of Savina.
In order to increase the 02 concentration faster, set the frequency to f = 12 1/min and Tinsp = 2 s. As soon as the specified previously.
Set inspiratory Vt in mL
100
200
1000
*The measured expiratory Vt refers to the patient's lung conditions (BTPS).
02 concentration is reached, reset values as
Table 1: IPPV measured values
Measured expiratory Vt* in mL
96+15
960±130
192 ±26
02 concentration in vol.% (Oxidig)
40 ±2
40 ±2
40 ±2
P
4.15.2
4.15.2.1
Testing of pressure-controlled ventilation
Units with BIPAP option: continue with test step 4.15.2.1. All other units: continue with
test step 4.15.2.2.
Testing the pressure controlled ventilation in
BIPAP mode
Set the following values: BIPAP,
f = 6 1
/min, Paw = max, PEEP = variable, Pinsp = variable,
P
ASB = 0 mbar-
02 =80 vol.%,
Tinsp.= 5 s,
FlowAcc = 60 mbar/s
Test set-up:
As in test step 4.15.1.
38
Page 39
Test value:
Test 02 concentration using a separate 02
analyzer, e.g. Oxydig. The value indicated by Savina must be 80 vol.% il vol.%.
1
PEEP setpoint in
mbar
5
20
5
In order to increase the 02 concentration faster, set the frequency to f = 12 1/min and Tinsp = 2 s. As soon as the specified previously.
Set Pinsp in mbar
25
60
25
02 concentration is reached, reset values as
Table 2: BIPAP measured values
Actual PEEP in
5 ±2
20+2
5 ±2
mbar
25+2
60 ±2
25 ±2
Actual Pinsp in
mbar
02 concentration in vol.% (Oxidig)
80 ±3
80 +3
80 ±3
4.15.2.2
Continue with test step 4.15.3.
Testing the pressure controlled ventilation in
CPAP mode
Set the following values: CPAP,
Apnea ventilation ON,
f Apnea
Vt
Apnea =
Paw = variable, PEEP = variable, 02 =80 vol.%, FlowAcc = 60 mbar/s
Test set-up:
As in test step 4.15.1.
— ^ 1/min,
2000
mL.
39
Page 40
Test value:
PEEP setpoint in
mbar
5
20
5
4.15.3
Test 02 concentration using a separate 02
analyzer, e.g. Oxydig. The value indicated by Savina must be 80 vol.% ±1 vol.%.
Pmax setpoint in
Testing trigger characteristics in CPAP/ASB
mode
Set the following values: CPAP/ASB, Paw alarm limit high = 30 mbar, PEEP = 5 mbar, 02 = 40 vol%, ASB = 20 mbar,
Trigger = 3 L/min
mbar
30
55
30
Table 3: CPAP measured values
Actual PEEP in
mbar
5 ±2
20 ±2
5 ±2
Actual Pmax in
P
25+2
50 ±2
25 ±2
mbar
02 concentration in vol.% (Oxidig)
80 +3
80 ±3
80 ±3
Test set-up:
As in test step 4.15.1.
Test value:
Unit does not trigger an ASB breath.
Simulate breathing.
Test value:
Trigger LED must light up and ASB breath
must be triggered. ASB pressure 25 mbar ±3 mbar.
F
P
40
Page 41
4.16
Testing the optional central alarm (if available)
4.17
Activate alarm, e.g. by pulling power plug.
Test set-up:
Test value:
Contacts "3" and "5" close if an alarm occurs. Contacts "1" and "3" open.
Service hours counter and log entries
Switch off Savina.
F
Switch on Savina and, at the same time, press and hold the backlighting dim-up/dim-down key and the "Config" key until the sen/ice mode is activated (see also chapter "Service Mode Entering the Internal Service Mode").
Call up test 0:
Perform "DELETE LOGBOOK" function.
Call up test 3:
Perform "RESET SERVICE HOURS"
function.
5.
6.
Place fully functional unit at user’s/owner’s disposal.
Confirmation of test
Name:
Date:
Signature:
* These steps are regarded as repair work and
are therefore not included in the inspection service price.
41 42
Page 42
Page 43
8.1
Annex
List of service equipment for Test Certificate
Table 4: Test Equipment
Designation
Test lung
Patient adapter for Paw measurement
Oxydig
Pressure gauge, digital 100 mbar
VDE tester
RS232 adapter, crossed
RS232 extension
Test pressure regulator
Injector
Syringe, 50 mL
Flowmeter block
Flowmeter, 10-120 L/min
AWT sensor dummy
Order number
84 03 201
8290285
8304411
79 10 722
79 10 594
79 01 888
79 01 808
79 011 482
2M 06 912
79 01 541
79 01 161
79 00 718
79 00 405
Charge tester (Evita), complete
Cable for charge tester
Multimeter
DC voltage source, 3 -18 V
Thermometer
Fortesting castors on trolley:
Torque spanner
Special open-ended wrench, 17 mm
Special open-ended wrench, 41 mm
79 10 385
79 10 387
79 01 021
79 10 426
2M11 111
79 00 909
79 01 204
79 10 462
43
Page 44
O III >
11
CO
ro
Pneumatic
diagram
Page 45
135
III
CO CO
Tubing
diagram
4^ U1
Hose
Hose
2x1.5-Si
12x3-Si
r\o r\o to
XXX
CO CO CO
natural
3 sq-
natural
g §
Page 46
Service Strategy
Items to be repaired/Repair
locations
Service Strategy
Items to be repaired/Repair
What
Inspection
On-site repair
Workshop repair
locations
Test instructions/test
aids
Test Certificate, service documentation
Test Certificate, service documentation
Test Certificate, service
Repair
Minor repairs, battery replacement etc.
Minor repairs, e.g. changing a fuse, exchanging a module, calibration
Minor repairs, e.g. changing a
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Repair in Lubeck
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Service Strategy Savina Version 2.0
documentation
Test Certificate, service documentation, documentation
design
fuse, exchanging a module, calibration
Repair at component level
Page 46
Page 47
Service Strategy
General notes
General notes
A
Electrostatic discharge may damage the electronic components. When handling electrostatic sensitive devices use static-dissipative
The
02
batteries in accordance
mat and a wrist strap.
sensors and batteries are special waste items. Dispose of the
with local waste disposal regulations.
02
sensors and
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Service Strategy Savina Version 2.0
Page 47
Page 48
Maintenance Procedure
Maintenance
The maintenance the Test Certificate. For the maintenance
Procedure
procedure
described
here corresponds
intervals refer to the Test Certificate: "Replacement
wear and tear parts". The following maintenance
- Replacing filter and sealing ring in 02 compressed
- Replacing the 02 pressure
- Replacing the blower unit
- Replacing the internal rechargeable
reducer
batteries
- Replacing the real-time clock on the Control PCB
procedure
to
the maintenance
is
gas inlet
described:
procedure
set out in
of
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02
sensors,
Use/Operating
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microbial filter, diaphragm
Instructions".
Maintenance Procedure Savina Version 2.0
in
expiratory valve and dust filter see "Instructions for
Page 48
Page 49
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
Replacing
• Switch off the unit.
• Disconnect the
filter and sealing
02
compressed
ring in 02
gas supply.
• Open the unit (see "Removing the rear panel").
• Remove the micro-filter 1.
• Remove the drawer unit
2
compressed
gas inlet
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Fig.1
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:
Removing the micro-filter.
Maintenance Procedure Savina Version 2.0
Page 49
Page 50
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
• Remove the screws 3.
Fig-2:
Removal of valve block 1
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Maintenance Procedure Savina Version 2.0
Page 50
Page 51
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
Remove also the sealing ring from the NIST connector.
be lost during further disassembly.
• Remove NIST connector
Fig-3:
NIST connector
(if fitted) and sealing ring.
Otherwise the sealing ring could
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Maintenance Procedure Savina Version 2.0
Page 51
Page 52
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
• Remove inspiratory flow sensor from plug-in unit and push up.
Fig.4:
Removing the inspiratory flow sensor
• Remove large, transparent unit.
Plug-in unit
Inspiratory flow sensor
hose (which connects valve block to plug-in unit) from the plug-in
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Maintenance Procedure Savina Version 2.0
Page 52
Page 53
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
• Pull out the valve block a little and turn 90° counter-clockwise.
Fig.5:
Turning the valve block
Mark the hoses leading to the valve block.
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Before removing the hoses from the valve block, mark them and make a note of their
fitting positions.
Remove the hoses.
Drager Medizintechnik GmbH
Maintenance Procedure Savina Version 2.0
Page 53
Page 54
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
• Remove the connector of the 02 Valve PCB.
Fig-6:
• Remove the valve block.
Removal of valve block 2
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Maintenance Procedure Savina Version 2.0
Page 54
Page 55
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
• Remove the screws
Fig.7:
Removing the filter
4.
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Remove the socket.
Before removing the filter and sealing ring, make a note of the fitting position.
1
Remove the filter and sealing ring.
Drager Medizintechnik GmbH
Maintenance Procedure Savina Version 2.0
Page 55
Page 56
Maintenance Procedure
Replacing filter and sealing ring in 02
compressed gas inlet
• Insert the new filter and sealing ring.
If the reducer".
02
pressure
• Assemble
_•
Make sure not to kink any hoses during assembly.
the unit.
reducer needs to be replaced as well, proceed with "Replacing the 02 pressure
• Perform the safety check and functional check as per the Test Certificate.
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Maintenance Procedure Savina Version 2.0
Page 56
Page 57
Maintenance Procedure
0
2
pressure
reducer
02
pressure reducer
Replacing the 02
• Remove the valve block (see "Replacing filter and sealing ring in 02 compressed
pressure reducer
gas inlet").
Follow the instructions given there from "Switch off the unit." to "Remove the valve block.").
Before removing the
position and, after removing it, the connector
reducer).
02
pressure
reducer from the valve block, make a note of its fitting
layout (see underside
of
pressure
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Maintenance Procedure
02
pressure reducer
• Remove the screws 1.
Fig.8:
Replacing the
02
pressure
reducer
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• Make a note of the fitting position.
• Remove the 02
• Make a note of the connector
• Fit the new 02
pressure
pressure
reducer.
reducer and O-rings.
layout.
• Continue with "Adjusting the 02 pressure
Drager Medizintechnik GmbH
Maintenance Procedure Savina Version 2.0
reducer".
Page 58
Page 59
Maintenance Procedure
02
pressure reducer
Adjusting
To adjust the pressure
ring in 02 compressed "Remove the valve block.").
• Connect the
• Connect the
the 02
02 02
pressure
reducer the valve block must be removed (see "Replacing filter and sealing
gas inlet". Follow the instructions given there from "Switch off the unit." to
reducer
Valve PCB to the Savina. pressure
supply.
• Connect pressure gauge, 0 to 6 bar (Use valid test equipment.
schematic)
to
the nebulizer outlet of the valve block.
02
Valve PCB connector
The illustration shows only a
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Fig-9:
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Pressure
reducer test set-up
Maintenance Procedure Savina Version 2.0
02
pressure supply
Nebulizer outlet
Page 59
Page 60
Maintenance Procedure
02
pressure reducer
• Switch on Savina and start service mode (see service mode, chapter "Entering the Internal
Service Mode").
• Select Test Step 13.
• Switch on the nebulizer valve.
To adjust the pressure adjustment
• Raise the pressure
• Adjust the pressure
• Push the pressure
reducer the control knob must be raised. After making the
the control knob must be pushed down again and secured with stop varnish.
reducer control knob.
on
the pressure
reducer control knob back down.
gauge with the pressure
reducer to 2 bar ±0.2 mbar.
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• Secure the control knob with stop varnish.
• Switch off Savina.
• Assemble
the unit.
• Perform the safety check and functional check as per the Test Certificate.
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Maintenance Procedure Savina Version 2.0
Page 60
Page 61
Maintenance Procedure
Replacing the blower unit
Replacing
• Open the unit fully (see "Opening the unit").
• Remove the connector
PCB").
the blower unit
for the return valve (X644) from the Control PCB (see "View, Control
• Fold away the backing plate on which the Control PCB is mounted (see "Folding away the
Control PCB").
• Remove the connector
1
from the Motor Commutator
PCB.
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Fig.10:
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Motor Commutator
PCB connector
Maintenance Procedure Savina Version 2.0
Page 61
Page 62
Maintenance Procedure
Replacing the blower unit
• Remove the screws 2 from the fan.
Fig.11:
Removing the fan.
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• Place the fan on the plate of the Control PCB
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Maintenance Procedure Savina Version 2.0
Page 62
Page 63
Maintenance Procedure
Replacing the blower unit
• Remove the micro-filter 3.
• Remove the drawer unit
Fig.12:
Removing the micro-filter.
4.
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Maintenance Procedure Savina Version 2.0
Page 63
Page 64
Maintenance Procedure
Replacing the blower unit
• Remove inspiratory flow sensor from plug-in unit.
Fig.13:
• Remove the fixing screws
Removing the inspiratory flow sensor
5
of the blower bracket.
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Fig.14:
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Slacken the blower bracket.
Maintenance Procedure Savina Version 2.0
Page 64
Page 65
Maintenance Procedure
Replacing the blower unit
When withdrawing the blower pay attention to the cable connections. connections and the Motor Commutator
must also be fed out. The removed cables are those of the Control PCB
PCB.
The cable
• Push the side panel away slightly and carefully withdraw the blower out of the unit towards the
rear.
• Remove the fixing screws 6 (screws are tighten to 1.2 Nm ±0.3 Nm).
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Fig.15:
Removing the blower unit.
• Remove the blower block.
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Maintenance Procedure Savina Version 2.0
Page 65
Page 66
Maintenance Procedure
Replacing the blower unit
• Remove the fixing screws
Fig.16:
• Remove the blower.
Removing the blower.
7.
• Install the new blower and seals.
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The screws in step "Remove the fixing screws 6 (screws are tighten to
1.2 Nm ±0.3 Nm)." are tightened with to a specific torque.
• Assemble
the unit.
• Perform the safety check and functional check as per the Test Certificate.
Drager Medizintechnik GmbH
Maintenance Procedure Savina Version 2.0
Page 66
Page 67
Maintenance Procedure
Replacing the internal rechargeable batteries
Replacing
the internal
rechargeable
• Open the unit (see "Removing the rear panel").
• Remove the fuse for the rechargeable
batteries by levering it out carefully with a screwdriver.
batteries
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Fig.17:
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Removing the fuse of the rechargeable
Maintenance Procedure Savina Version 2.0
batteries.
Page 67
Page 68
Maintenance Procedure
Replacing the internal rechargeable batteries
• Remove the screws 1 and the cover
Fig.18:
A
Removing the rechargeable
The rechargeable
batteries
in
accordance
batteries
2.
batteries, part 1
are special waste items. Dispose of the rechargeable
with local waste disposal
regulations.
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Reversing the power pack. Make a note of the connector when fitting the rechargeable
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the polarity of the rechargeable
Maintenance Procedure Savina Version 2.0
batteries.
batteries will damage the batteries
layout and ensure correct polarity
and
Page 68
Page 69
Maintenance Procedure
Replacing the internal rechargeable batteries
• Remove the rechargeable
Fig.19:
Removing the rechargeable
• Fit new rechargeable
A
Inadequate
voltage. The new rechargeable
batteries.
batteries.
batteries, part 2
batteries
are not sufficiently
charged.
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Connect the Savina for at least 10 hours to the mains supply (Savina does not
need to be switched
• Assemble
• Perform the safety check and functional check as per the Test Certificate.
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the unit.
Maintenance Procedure Savina Version 2.0
on).
Page 69
Page 70
Maintenance Procedure
Replacing the real-time clock on the Control PCB
Replacing
Read the following information before replacing the real-time clock (RTC):
A
Do not replace the EEPROM and the RTC on the Control PCB at the same time. Otherwise components, component
The unit must be off when replacing the RTC.
the real-time
the recorded
do it in sequence,
first before starting the next one.
clock on the Control PCB
operating
hours will be lost. If you need to replace both
that is, complete
Replace the RTC only with a brand-new
the replacement
RTC that has not been in use before.
Ensure the correct polarity. If the polarity of the RTC is reversed the RTC will be
of
one
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destroyed.
The RTC has a battery. Dispose of the old RTC according
regulations.
The RTC keeps information about operating hours and settings, e.g. alarms and configurations.
RTC.
Drager Medizintechnik GmbH
Remember
This information must be read out and written down before replacing the
Maintenance Procedure Savina Version 2.0
the installation
position of the RTC.
to
local waste disposal
Page 70
Page 71
Maintenance Procedure
Replacing the real-time clock on the Control PCB
• Read out and write down operating hours and settings, e.g. alarms and configurations.
• Switch off the unit.
• Open the unit (see "Opening the operator control panel").
• Remove the RTC (D19) from the Control PCB.
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Fig.20:
• Insert the brand-new
• Assemble
• Switch on the unit.
Removing the RTC
the unit.
RTC.
A device malfunction is generated.
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Maintenance Procedure Savina Version 2.0
Page 71
Page 72
Maintenance Procedure
Replacing the real-time clock on the Control PCB
• Adjust settings (as written down), time, and date on the unit.
• Switch unit off and on again.
The unit should not generate
any device malfunction.
Settings recently made should be available.
The operating hours should have the same status as before replacement
• Perform the safety check and functional check as per the Test Certificate.
of
the RTC.
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Page 72
Page 73
Service Mode
General
Service Mode
General
The Service Mode is mainly intended for troubleshooting
and as a test aid for the Test Certificate.
The Service Mode allows you to call up different test steps. In these test steps, you can, for
example, read out the error list, and check measured in English. The functions of the test steps are described switched, we recommend Schematics
-Entering
and Diagrams section, "Pneumatic
the Internal Service Mode
to
have a pneumatics
diagram ready for better understanding
diagram").
values and keys. The displayed plain text is
in
the continuous
text. Since valves are
(see
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- List of test steps
- Description of the test steps
- Required equipment
- Entering the PC Service Mode
- Exiting Service Mode
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Service Mode Savina Version 2.0
Page 73
Page 74
Service Mode
Internal Service Mode
Internal Service
Mode
Entering the Internal Service Mode
1.
Switch on Savina and, at the same time, press and hold the backlighting dim-up/dim-down
key and the "Config" key until the service mode is activated.
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Fig.1
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:
Entering the internal Service Mode
Service Mode Savina Version 2.0
Page 74
Page 75
Service Mode
Internal Service Mode
The following screen page appears
Fig-2:
Internal Service Mode start screen page
on
the display:
The individual test steps can be selected and activated with the control knob as follows:
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1.
Press the control knob.
The "field" with the test step number becomes
reverse video.
2.
Turn the control knob.
The desired test step number can be set.
3.
Press the control knob.
The selected test step is activated.
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
dark. The test step number is displayed in
Page 75
Page 76
Service Mode
Internal Service Mode
Different settings can be made depending on the selected test step. The procedure is described in
the following example:
1.
Select test step 7. The following window appears:
Fig-3:
Test step 7
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The box with the "thicker" black frame is active. You can change the active box by turning the control knob. In this case the "Set blower revolution" box (blower speed) is active.
To change the blower speed:
1.
Press the control knob.
The box with the speed becomes dark. The speed is displayed in reverse video.
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
Page 76
Page 77
Service Mode
2.
Turn the control knob.
Internal Service Mode
The desired speed can now be set (if you do not wish to change the speed, use the "Alarm
Reset" key to exit the respective
3.
Press the control knob.
The blower turns at the set speed.
To exit the test step:
1.
Turn the control knob until the "Exit" box is activated.
2.
Press the control knob.
The start screen page appears.
To exit the internal service mode:
1.
Switch off Savina.
setting).
The blower has stopped turning.
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Service Mode
Internal Service Mode
List of test steps
Table 1: Test steps and description
Test step
Test Step 0 Test Step 1 Test Step 2 Test Step 3 Test Step 4 Test Step 5 Test Step 6 Test Step 7
Description
Reading out the error log (error list). Testing keys. Testing keys.
Displaying device and service operating hours.
Displaying battery and power pack voltages.
Switching valve block valves. Testing the Testing the pressure
02
pressure
supply. As of SW 1.10, reading out of SW options.
source (blower) and the inspiratory sensor.
reserved.
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Test Step 8 Test Step 9 Test Step 10 Test Step 11 Test Step 12 Test Step 13 Test Step 14
Drager Medizintechnik GmbH
Testing the Testing the expiratory valve. Testing the safety valve. Testing the emergency Testing the calibration valves for the airway pressure Testing the drug nebulizer valve. Testing the inspiratory and expiratory flow measurement.
Service Mode Savina Version 2.0
02
measurement
and the
02
air valves V8/V9.
mixer.
sensors.
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Service Mode
Internal Service Mode
Table 1: Test steps and description
Test step
Test Step 15
Test Step 16 Test Step 17 Test Step 18 Test Step 19 Test Step 20 Test Step 21 Test Step 22
Description
Setting the calibration classes for the bypass valve (VI) and of the expiratory valve (V3).
Displaying the internal device temperature. Displaying the internal, analog measured
— see Test Step 17 —
Displaying the external, analog measured Displaying the internal, analog measured
— see Test Step 20 —
Displaying and calibrating the offset and calibration voltage of the electronics
the
02
sensors.
(cont’d.)
values of the master processor.
values of the master processor.
values of the front processor.
for
reserved.
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Test Step 23 Test Step 24 Test Step 25
Test Step 26 Test Step 27
Drager Medizintechnik GmbH
Calibrating the offset voltage of the inspiratory and expiratory pressure
Displaying the calibration data of the
— Up to SW 1.01, not assigned display, 7-segment
— Up to SW 1.01, not assigned
Entering the ambient pressure.
Service Mode Savina Version 2.0
display, and LEDs.
— as of
— as of
02
sensors.
SW 1.10, display of actual status of
SW 1.10, setting factory default values.
sensors.
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Service Mode
Internal Service Mode
Description
Test Step 0
Test step 0 is used to read out the error log (error list). A list of error messages
messages messages
First occurrence
of the test steps
are visible at a time. Additional error messages
have the following structure:
Last occurrence
Error number
appears.
can be viewed by scrolling. The error
Number of errors
"Send Logbook" transmits the error log to a PC (for settings in the terminal program, see also"Entering For assignment
Test Step 1
the PC Service Mode"). "Delete Logbook" deletes the error log.
of
error numbers, see chapter "Error List".
5
error
reserved.
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Test steps 1 and 2 are used to test the keys on the front panel. The name of the key appears,
"Nebulizer", and "Not press." (not pressed).
This method can be used to test all keys.
Test Step 2
— see Test Step 1 —
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
"Pressed"
is
displayed as soon as the key is pressed.
e.g.
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Service Mode
Internal Service Mode
Test Step 3
Test step 3 is used to display the device operating hours and the service hours. The service hours can be reset to zero with the "Reset service hours" function. Operating hours and service hours are
not counted while the device is in standby.
Test Step 4
Test step 4 is used to display the operating voltages of the power pack (except for the +48 V for the
blower) and the voltage of the internal battery. Moreover, the status of the external AC supply ”ext.
AC-supply”, external DC supply ”ext. DC-supply” (on-board electrical system or external battery),
internal battery ”int. battery”, and the charge status of the internal battery ’’charge state" is
displayed.
Display +5 V
Range
+4.85 V to +5.53 V
Display
+24 V
Range
+22.8 V to +25.2 V
reserved.
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+15 V
-15 V
Status ”ext. AC-supply” ”OK” ”ext. AC-supply” ”NC” ”ext. DC-supply” ”OK”
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
+14.25 V to+15.75
-14.25 V to-15.75
Key: External AC voltage present. External AC voltage not present or faulty. External DC voltage present.
V
V
int. battery
20 V to 28 V
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Service Mode
Internal Service Mode
Status ”ext. DC-supply” ”NC” "int. battery" "OK" "int. battery" "NC" "int. battery" "CHARGING" "charge state"
Test Step 5
Test step 5 is used to read out the 02 supply pressure
Key: External AC voltage not present or faulty. Internal battery is present. Internal battery is not present or is faulty. Internal battery is present and is being charged.
0% to 100% internal battery capacity.
”02-supply
pressure” of the valve block and
to switch each valve on the valve block (V7.1 through V7.8) individually. The valve can be switched
on or off using the "Valve status" function. The respective
valve can be selected
using the "Valve"
function. The switching noise of the valves is clearly audible. To perform a more accurate test, it is
possible to connect a flowmeter tube to the valve block and to test each valve with the respective
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restrictor. The test values listed in the table apply to a supply pressure 2 bar ± 0.01 bar (with open valve).
Valve/restrictor V7.1/R5.1 V7.2/R5.2 V7.3/R5.3 V7.4/R5.4
Drager Medizintechnik GmbH
Restrictor value 30 L/min ±2 L/min 30 L/min ±2 L/min 30 L/min ±2 L/min 30 L/min ±2 L/min
Service Mode Savina Version 2.0
Valve/restrictor V7.5/R5.5 V7.6/R5.6 V7.7/R5.7 V7.8/R5.8
of
the valve block of
Restrictor value 12 L/min ±1 L/min 12 L/min ±1 L/min
3.9 L/min ±0.3 L/min
3.9 L/min ±0.3 L/min Page 82
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Service Mode
Internal Service Mode
Test Step 6
Up to SW 1.01 -> Test step 6 is used to display the 02 supply pressure 02
supply source (sensor S5). The pressure
"02-supply
must be between 2.7 bar and 6 bar.
pressure" of the
As of SW 1.10 -> Test step 6 shows the SW options available in Savina. A SW option can be deactivated
with ’’disable option”.
The option can only be reactivated
using the correct ’’release code”. The code must be
entered in the ’’Config.” menu with the unit set to ventilation mode.
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Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
Page 83
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jrq
M
A=1
Service Mode
Test Step 7
The
]_
02
supply pressure
must be disconnected
Internal Service Mode
in
order to be able to perform test step 7.
reserved.
The following measured
- "Flowinsp" -> measured
-"Pawinsp"
->
measured
- "Blower revolution" -> speed of the blower
values are displayed
value of the inspiratory flow sensor SI
value of the inspiratory pressure
in
test step 7:
sensor S4.1
The speed of the blower can be changed with "Set blower revolution".
The bypass valve (VI) can be set with "Pressure
pressure
is
built up. If the bypass valve is closed slightly, the corresponding
air flows out of the inspiratory socket. The pressure
The expiratory valve is "sealed" with 30 mbar.
Test Step 8
bypass". 0 means the bypass valve is open. No
sensor S4.1 (Pawinsp) indicates a pressure.
pressure
is
built up and
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Connect a hose system including breathing bag to the inspiratory socket and the expiratory socket to perform this test step.
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
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Service Mode
Internal Service Mode
Test step 8 is used to display the inspiratory flow "Flowinsp", the
"02 (sensor 2)" of the mixing chamber, and the
02
supply pressure.
02
concentration
In
addition, each valve of the
"02 (sensor 1)"
valve block can be switched individually. With "02 valve status" the valve (V7.1 through V7.8) can
be switched to "on", "off", or "pulsating" (100 ms "on", 200 ms "off). The respective selected using the "02 valve" function. The switching noise of the valves is clearly audible. The expiratory valve is "sealed" with 10 mbar.
Test Step 9
valve can be
Connect (short-circuit) the inspiratory socket and the expiratory socket with a ventilation
hose to perform this test step.
Test step 9 is used to display the expiratory flow "Flowexp" (S2), the expiratory pressure
(S4.1), and the inspiratory pressure
"Pawinsp" (S4.2). The expiratory pressure
"Pawexp"
can be adjusted
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(V3). The blower generates
a
constant flow of 10 L/min.
Trigger expiratory valve with > 5 mbar. The following measured
-’’Flowexp” = 10 L/min ±1 L/min
-’’Pawexp”
Drager Medizintechnik GmbH
=
’’Pawinsp” ±1.5 mbar
Service Mode Savina Version 2.0
values should be displayed:
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Service Mode
Internal Service Mode
Test Step 10
Test step 10 is used to display the expiratory pressure
pressure pressure
value = 102 mbar to 110 mbar).
Connect (short-circuit)
hose and connect an external pressure
"Pawinsp" (S4.2). The maximum permissible
measuring
device indicates the opening pressure
the inspiratory socket and the expiratory socket with a ventilation
measuring
device to perform this test step.
"Pawexp" (S4.1) and the inspiratory
pressure
of
is
105 mbar. The external
the safety valve D1 (Target
The blower delivers a flow 30 L/min; the expiratory valve is "sealed" with 120 mbar.
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Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
Page 86
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Service Mode
Internal Service Mode
Test Step 11
Test step 11 is used to test the emergency This test step is also used to display the expiratory pressure
pressure
V8/V9 off -> pressure V8/V9 on -> pressure
Connect (short-circuit)
hose and connect an external pressure
"Pawinsp" (S4.2).
reading approx. 94 mbar
reading maximum 5 mbar
the inspiratory socket and the expiratory socket with a ventilation
air valves V8/V9. The valves can be switched on or off.
measuring
device to perform this test step.
"Pawexp" (S4.1) and the inspiratory
A venting noise is clearly audible when the valves are switched to "on".
Test Step 12
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Connect (short-circuit) the inspiratory socket and the expiratory socket with a ventilation
hose to perform this test step.
Test step 12 is used to test the calibration valves (V6.1, V6.2) of the airway pressure
sensors (S4.1, S4.2). The valves can be switched on or off. In addition, the inspiratory flow "Flowinsp", the inspiratory pressure approximate
Drager Medizintechnik GmbH
values are displayed:
"Pawinsp", and the expiratory pressure
Service Mode Savina Version 2.0
"Pawexp" are displayed. The following
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Service Mode
Internal Service Mode
"Insp.cal valve" (V6.1)
on
off off
on
Test Step 13
"Exp.cal valve" V6.2 off
off on
on
"Flowinsp"
10 L/min
10 L/min 10 L/min
10 L/min
"Pawinsp" 0 mbar
±0.3 mbar approx. 40 mbar approx. 40 mbar
"Pawexp"
approx. 40 mbar
approx. 40 mbar
0 mbar
±0.3 mbar
0 mbar ±0.3 mbar
0 mbar
±0.3 mbar
Test step 13 is used to test the nebulizer valve (V5). The valve can be switched on or off. When the valve is switched on, 02 flows out of the nebulizer socket (8 L/min +5 L/min). The nebulizer is
powered with 02.
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Test Step 14
Connect (short-circuit)
hose to perform this test step.
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
the inspiratory socket and the expiratory socket with a ventilation
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Service Mode
Internal Service Mode
Test step 14 is used to check the correspondence
expiratory "Flowexp" flow measurement.
The bypass valve (VI) can be set with "Pressure
0 means the bypass valve is open. No pressure
corresponding
pressure
is
built up (the expiratory valve is "sealed" with 30 mbar and air flows.
Measured value: "Flowexp" = "Flowinsp" ±13% (from "Flowinsp")
Test Step 15
A
Incorrect calibration only be changed
valve VI
and
Expiratory valve V3").
classes
lead to ventilation
during repair (see maintenance
Test step 15 is used to set the calibration classes
between the inspiratory "Flowinsp" and the
is
built up. When the bypass valve is closed, a
errors. Calibration
procedure,
of
the bypass valve (VI) and of the expiratory
chapters
classes
"Bypass
bypass".
may
valve (V3). "Bypass valve cal. class" is used to set the calibration class of the bypass valve; "Exp. valve cal. class" is used to set the calibration class of the expiratory valve.
reserved.
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Test Step 16
Test step 16 is used to display the internal device temperature
Fahrenheit Control PCB. At normal ambient temperature, and 45 °C or 59 °F and 113 °F.
Drager Medizintechnik GmbH
(°F). The temperature
Service Mode Savina Version 2.0
is
measured
with a temperature
the internal device temperature
in
degree centigrade
sensor located on the
(°C) and
is
between 15 °C
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Service Mode
Internal Service Mode
Test Step 17
Test step 17 is used to display the measured
processor.
Designation
VFLOWTEMP
VTEMPAIR
A/D values
0409 ... 0512
0246 ... 0327
Voltage range
2.00 V... 2.50 V
1.20 V... 1.60 V
value of the internal A/D converter of the master
Remark
(at ambient temperature). of inspiratory gas, measured sensor (SI) assembly.
(at ambient temperature).
Temperature
at
Temperature of inspiratory gas. The temperature sensor (NTC) is located on the
inspiration block. The measurement
signal is processed
Diaphragm
PCB.
on the 02
TSI
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VCC+15V02MESS
VCC+15VMESS
Drager Medizintechnik GmbH
0593 ... 0634
Service Mode Savina Version 2.0
0573 ... 0655
2.90 V... 3.10 V
2.80 V... 3.20 V
Measurement
signal of the +15V supply voltage of the 02 Diaphragm sensors.
Measurement
voltage.
signal of the +15V supply
PCB/02
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Service Mode
Internal Service Mode
Designation
VCC+5VSMESS
V_ABS_PRESS_1
V_A B S_P R E S S_2
A/D values
0491 ... 0532
Voltage range
2.40 V... 2.60 V
Remark
Measurement voltage of the absolute pressure sensors generated the +15 V.
0798 ... 0880
3.90 V... 4.30 V
(at normal atmospheric
Measurement
pressure sensor S7. The sensor is
located on the 02 Valve PCB.
0798 ... 0880
3.90 V... 4.30 V
(at normal atmospheric
Measurement
pressure sensor S6. The sensor is
located on the 02 Valve PCB.
signal of the +5V supply
S6, S7. The voltage is
on the 02 Valve PCB from
pressure).
signal of the absolute
pressure).
signal of the absolute
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VFI022
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
0102 ... 0205
0.50 V... 1.00 V (if system is free from 02). Measurement
The measurement
signal of 02 sensor 2.
signal is processed
on the 02 Diaphragm
PCB.
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Service Mode
Internal Service Mode
Test Step 18
Test step 18 is used to display the measured
processor.
Designation
VFI021
V_02_PRESSURE
VREF02
A/D values
0102 ... 0205
0164 ... 0246
0593 ... 0634
Voltage range
0.50 V... 1.00 V (if system is free from 02).
0.80 V... 1.20 V
2.90 V... 3.10 V
value of the internal A/D converter of the master
Remark
Measurement
The measurement on the 02 Diaphragm
(02 depends
disconnect
pressure, measured
on the 02 Valve PCB.
Reference
signal of 02 sensor 1.
signal is processed
PCB.
on
supply pressure,
02 supply). 02 supply
at
S5. S5 is located
voltage for V TEMP AIR
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VPAWREG
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
0123 ... 0184
0.60 V... 0.90 V
and V TEMP 02. The reference voltage is generated
Diaphragm
voltage.
Measurement
PCB from the battery
signal of control pressure
on
the 02
sensor S4.3. The sensor is only available in the first lot of units.
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Service Mode
Internal Service Mode
Designation
VTEMPAWT
VTEMPAWT
VFLOW
VFLOWNULL
VFLOWINOP
A/D values
1023
0716 ... 0818
0004 ... 0012
0822 ... 0831
0102 ... 0246
Voltage range
5.00 V
3.50 V... 4.00 V
0.02 V... 0.06 V (with flow exp. = 0). Flow signal of
4.02 V... 4.06 V (with flow exp. = 0). Signal of expiratory
0.50 V... 1.20 V Signal of expiratory flow sensor S2.
Remark
(without external AWT sensor). Measurement
The measurement
signal of AWT sensor.
signal is processed
on the Control PCB (temperature
hybrid). (with external AWT sensor, at ambient
temperature).
expiratory flow sensor S2.
flow sensor S2.
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Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
Page 93
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Service Mode
Internal Service Mode
Test Step 19
Test step 19 is used to display the measured
processor.
Designation
VFLOW
V_FLOW_INSP
VPAWINSP
VPAWEXP
VFI021
A/D values
0016 ... 0049
0246 ... 0491
0491 ... 0737
0491 ... 0737
0410 ... 0819
Voltage range
0.020 V ... 0.060 V
0.300 V... 0.600 V
0.600 V ... 0.900 V Measurement
0.600 V ... 0.900 V Measurement
0.500 V... 1.000 V (if system is free from 02).
value of the external A/D converter of the master
Remark
(with flow exp. = 0). Flow signal of
expiratory flow sensor S2.
(with flow insp. = 0). Flow signal of inspiratory flow sensor SI.
pressure
pressure
signal of the inspiratory
sensor S4.2.
signal of the expiratory
sensor S4.1.
reserved.
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VREF02
Drager Medizintechnik GmbH
2375 ... 2539
Service Mode Savina Version 2.0
Measurement
The measurement
located on the 02 Diaphragm
2.900 V... 3.100 V
Reference and V TEMP 02. The reference voltage is generated
Diaphragm
voltage.
signal of 02 sensor 1.
electronics
voltage for V TEMP AIR
are
PCB.
on
the 02
PCB from the battery
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Service Mode
Internal Service Mode
Designation
VTEMP02
V_TSI_GND
A/D values
0983 ... 1310
0000 ... 0004
Voltage range
1.200 V... 1.600 V
0.000 V... 0.005 V
Remark
Temperature temperature the 02 Diaphragm
Ground pick-up of inspiratory flow sensor SI.
of
02 sensors.
measurement
PCB.
is
The
located on
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Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
Page 95
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Service Mode
Internal Service Mode
Test Step 20
Test step 20 is used to display the measured
processor.
Designation
VPAWINSP
VPAWEXP
VFLOW
VFLOWINSP
V_AKKU_MESS
A/D values
0123 ... 0184
0123 ... 0184
0004 ... 0012
0061 ... 0123
0681 ... 0953
Voltage range
0,60 V... 0,90 V
0,60 V... 0,90 V
0,02 V... 0,06 V (with flow exp. = 0). Flow signal of
0,30 V... 0,60 V
3,33 V... 4,66 V
value of the internal A/D converter of the front
Remark
Measurement pressure sensor S4.2.
Measurement pressure sensor S4.1.
expiratory flow sensor S2.
(with flow insp. = 0). Flow signal of inspiratory flow sensor SI.
Measurement
signal of the inspiratory
signal of the expiratory
signal of internal battery
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VCC+15VMESS
VCC-15VMESS
VCC+5VMESS
Test Step 21
Drager Medizintechnik GmbH
voltage.
0573 ... 0655
2,80 V... 3,20 V
Measurement
voltage.
0573 ... 0655
2,80 V... 3,20 V
Measurement
voltage.
0501 ... 0542
2,45 V... 2,65 V
Measurement
voltage.
signal of the +15V supply
signal of the -15V supply
signal of the +15V supply
Service Mode Savina Version 2.0
Page 96
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Service Mode
Internal Service Mode
Test step 21 is used to display the measured
processor.
Designation
VCC+24VMESS
VOP+15VMESS
VOP-15VMESS
SNGDM
VGOLDCAP
A/D values
0655 ... 0737
0573 ... 0655
0573 ... 0655 0002 ... 0010
0921 ... 1003
Voltage range
3,20 V... 3,60 V
2,80 V... 3,20 V
2,80 V... 3,20 V 0,01 V... 0,05 V
4,50 V... 4,90 V
value of the internal A/D converter of the front
Remark
Measurement
voltage.
Measurement
signal of the +24V supply
signal of the +15V supply
voltage for the control electronics
bypass and expiratory valves. see VOP+15V Connected
(charged).
MESS
ground on Control PCB.
Voltage of Gold-Cap
capacitor. Voltage is through-connected
of
the
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IPIEZOJVIESS
VTEMPINT
V_SYNC_PIEZO
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
0000 ... 0008 0184 ... 0246
0000 ... 1023
0,00 V... 0,04 V
0,90 V... 1,20 V
0,00 V... 5,00 V
via contacts of ON/OFF switch. The capacitor is located on the Control PCB.
Measurement
(at ambient temperature).
signal of alarm generator.
Measurement
signal for internal device temperature,
measured
(runs cyclically, due to silencing).
Measurement tone of alarm generator.
at
Control PCB.
signal for intermittent
Page 97
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Service Mode
Internal Service Mode
Test Step 22
Test step 22 is used to display the "Measured the electronics the measurement
for the
To calibrate the measurement calibration.
02
sensors.
electronics
In
"Calibrate 02 sensors".
offset voltage" and the "Calibrated offset voltage" of
addition, this test step can be used to calibrate the offset of
electronics,
remove the 02
sensors.
Refit 02
sensors after
Select "Start" to start calibration. "Running" is displayed. Calibration is finished as soon as the message
Test Step 23
Test step 23 is used to display the offset voltages of the inspiratory pressure
"Start" reappears.
sensor (S4.1) and
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expiratory pressure
Activate "Calibrate" to start calibration.
switch to ambient air.
sensor (S4.2). This test step is also used to calibrate the offset voltage.
It is
Value after calibration: —75 mV to +75 mV
Drager Medizintechnik GmbH
Service Mode Savina Version 2.0
clearly audible when the respective
valves (V6.1/V6.2)
Page 98
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Service Mode
Internal Service Mode
Test Step 24
Test step 24 is used to display the following calibration data of the
"Cal.const" "Offset voltage" "Pressure" "Temperature"
Test Step 25
Up to SW 1.01 -> not assigned.
02
sensors
Calibration constant
Electronics offset voltage Pressure
Temperature
at
which calibration was carried out
at
which calibration was carried out
(S3.1, S3.2):
As of SW 1.10 -> Test step 25 is used to test the LC display, the LEDs, and the 7-segment displays. The following tests can be called up with ’’Test target”:
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-’’LED”: All LEDs can be switched on and off (LEDs for indication of voltage supply are not triggered, they come on depending
-’’LCD”: The display is switched to ’’dark” for 5 seconds,
-”7-segment”:
Drager Medizintechnik GmbH
7-segment
Service Mode Savina Version 2.0
displays, including decimal point, can be switched on and off.
on voltage supply and charge state of the battery).
then to ’’bright” for 5 seconds.
Page 99
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Service Mode
Internal Service Mode
Test Step 26
Up to SW 1.01 -> not assigned.
As of SW 1.10 -> Test step 26 is used to set all values to factory default settings. Adjustment can
be done with "Set factory settings”.
Test Step 27
Before adjusting the ambient pressure,
Test step 27 is used to set the ambient pressure The ambient pressure
must be measured
values are displayed (after calibration -> enter and confirm ambient pressure):
disconnect
for calibration of pressure
with an external barometer.
the
02
supply.
sensors S6, S7, and S5.
The following measured
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Measured value S7 -> "Ambient pressure Measured value S6 -> "Ambient pressure Measured value S5 -> "02 supply pressure"
The measured
Drager Medizintechnik GmbH
values are kept even after the unit is switched off (stored in the EEPROM).
Service Mode Savina Version 2.0
(S7)" ambient pressure (S6)" ambient pressure
ambient pressure entered ±20 mbar
entered ±2 mbar entered ±2 mbar
Page 100
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