evita_2_dura_service_plus_supplement_to_instruction.pdf
Page 1
D
Evita 2 dura
Service Plus
1-251-96
Supplement to
the Instructions for Use
of the Evita 2 dura
Page 2
Contents
Contents
For Your Safety and That of Your Patients................. 3
Intended Use.............................................................. 4
Operation.................................................................... 5
Switching on Service Plus............................................ 5
Diagnostic page: "Front".............................................. 6
Diagnostic page: "Electronic µ-PC".............................. 7
Diagnostic page: "Electronic Sensors"......................... 9
Diagnostic page: "Pneumatic µP"............................... 10
Diagnostic page: "Pneumatic Sensors".......................11
Diagnostic page: "Pneumatic Valves"..........................15
Diagnostic page: "Service Logbook"...........................17
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Page 3
For Your Safety and That of Your Patients
For Your Safety and That of Your
Patients
Strictly follow the Instructions for Use
Use of the apparatus requires full understanding and
strict observation of these Instructions and of the
Instructions for Use of the Evita 2 dura. The apparatus
must only be used for the purposes specified here.
Liability for proper function or damage
The liability for the proper function of the apparatus is
irrevocably transferred to the owner or operator if the
apparatus is incorrectly serviced or maintained by
persons not employed by Dräger Service or if it is
handled in a manner not conforming to its intended use.
Dräger cannot be held liable for damage caused by noncompliance with the recommendations given above.
The warranty and liability provisions of the terms of sale
and delivery of Dräger are likewise not modified by the
recommendations given above.
Dräger Medical AG & Co. KGaA
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Page 4
Intended Use
Intended Use
Evita 2 dura Service Plus
Machine diagnostics with device status display
Device status checking and fault analysis
Structured display:
– switching and operating states of actuators, e.g.
valves,
– calibration values/measured values of sensors,
– fault lists,
– test results,
– component types/data.
Only suitably qualified personnel, e.g. Dräger Service
technicians, may use Service Plus and carry out
repairs to the machine.
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Page 5
Operation
Switching on Service Plus
Operation
Switching on Service Plus
Precondition:
Evita 2 dura Software 3.n or higher.
The "Service Plus" option must be installed.
●
Press the »Calib./Config.« menu key
●
Press the »Ventilation« menu key
Display example:
●
Enter code number »4655«:
Select the digits one by one
= turn the rotary control and press to confirm.
●
Select the desired diagnostic page with the
»Select jj« menu key:
Front
Electronic
Pneumatic
Other
Example display (Front):
The messages are displayed in english.
●
To select the sub-groups of the diagnostic page:
Select the corresponding key on the diagnostic page
= turn the rotary control,
confirm = press the rotary control.
If only two sub-groups are proposed, no need to
confirm.
Press any of the other menu keys to quit the Service
Plus function.
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Page 6
Operation
Diagnostic page: "Front"
Diagnostic page: "Front"
This page is used to diagnose problems in the apparatus
front panel components and for RAM diagnostics.
Disconnect from the patient before use!
The key operating test may affect the ventilation setting.
Example display:
Display type
Make/type of screen
Keys pressed
Operating test for each individual key
of the front panel unit –
Only perform the key test in standby
mode with the machine
disconnected from the patient.
To perform the test:
●
Hold down the relevant key for
about 2 seconds:
1 = key pressed
0 = key not pressed
Sound detected Operating test of the loudspeaker in
the front panel
●
To test the speaker, trigger an
alarm.
As soon as the alarm is detected, the
message "yes" is displayed on the
screen.
For up to 10 seconds after the end of
the alarm, "yes" remains displayed in
order to detect even short tones.
yes = loudspeaker function OK
no
RAM
6
= loudspeaker faulty
ok = RAM test successful
Page 7
Operation
Diagnostic page: "Electronic µ-PC"
Diagnostic page: "Electronic µ-PC"
This page displays the characteristics of the electronic
section and electronic components.
Example display µ-PC:
5V
10 V
12 V
–15 V
24 V
Power pack voltage values measured on
the "CO2 Carrier" card
Column 1: Rated voltage in V
Column 2: Measured voltage in V
Column 3: Decimal AD-converter values
Gold Cap
Actual voltage of the gold cap capacitor
in V and as decimal AD-converter value
Piezo
Voltage across the piezo alarm unit
(redundant alarm signalling to the
loudspeaker) in V and as AD-converter
value
Power Sw
Voltage across the auxiliary contact of
the power switch in V and as decimal
AD-converter value. This voltage is used
as criterion for power failure.
Power switch on <0,100 V <164
Power switch off >0,312 V >512
Batt. ext.
Voltage of the externally connected DC
power source (option Evita 4 DC for
Evita 4 and Evita 2 dura) in V and as
decimal AD-converter value.
AD 1
Reference voltage 1 of the AD-converter
in V and as decimal AD-converter value.
AD 2
Reference voltage 2 of the AD-converter
in V and as decimal AD-converter value.
Tcpu[C]
Temperature inside the device,
measured on the "CO2 Carrier" card in
°C and as a voltage value at the ADconverter in V.
Tair[C]
Temperature of the breathing gas
measured with the temperature sensor
in the Y-piece of the hose system in °C
and as voltage value at the AD-converter
in V.
Pinsp[mbar]
Inspiration pressure measured with the
pressure sensor located on the expiratory side, expressed in mbar and as
voltage value at the AD-converter in V.
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Page 8
Operation
Diagnostic page: "Electronic µ-PC"
Pambient[mbar]
Ambient pressure/atmospheric pressure used as reference by Evita 2
dura, expressed in mbar and as voltage value at the AD-converter in V.
ILV in/out
Inputs/outputs defined for the
"Independent Lung Ventilation" (ILV)
option
EEPROM
Result of the EEPROM test of the
"CPU 68332" card.
RAM
Result of the RAM test of the "CPU
68332" card.
Service connector Plug-in connector available for
service purposes
yes/no
CAN components Detected internal communication
components:
11000000
Screen
Pneumatic system
"Communication" card
(interface expansion)
SW options
The enabled options are displayed.
Output format:
1_(options 0 to 7)_(options 8 to
15)_(options 16 to 23)_(options 24
to 31)
1 = Block 1 with 32 options
1 = Option available
0 = Option not available
The following options for Evita 2 dura
are displayed in block 1:
Option 5 = Ventilation Plus
Option 7 = SpO2 measurement
for Evita 2 dura
Option 8 = Capno Plus
Option 9 = DC power adapter for
Evita 2 dura
Option 10 = under preparation
Option 11 = Monitoring Plus
Option 12 = Service Plus
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Page 9
Operation
Diagnostic page: "Electronic Sensors"
Diagnostic page: "Electronic Sensors"
This page displays the electronic characteristics of the
sensors.
Example display:
Ambient press [mbar]
Pambient
Atmospheric pressure measured in
mbar – filtered value
Raw
Actual atmospheric pressure
(unprocessed "raw" value – Raw) in V
and mbar
P_Reference
Reference atmospheric pressure,
measured with the pressure sensor for
medical air after switching on the
apparatus.
PAir/O2
Pressure measured by the upstream
pressure sensors in the Air and O2
connectors during the last device check
Pinsp
Inspiratory pressure measured in mbar
on the "CPU" (electronic) card
Pediatric flow
under preparation
Flow/MV
FlowNTPD/S
Cal D/A
ZeroOffs
UFLlimit/UGnd
SpO2
Type/value of the SpO2 module:
SpO2 [%]
functional oxygen saturation in %,
measured with the optional SpO2
measurement for Evita 2 dura.
CO2
Type of the CO2 module
Head SN
Serial No. of the CO2 sensor
State
Status of the CO2 module
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Page 10
Operation
Diagnostic page: "Pneumatic µP"
Diagnostic page: "Pneumatic µP"
Example display: µP
Periphery of
processor
RAM
EEPROM
Fan
Status of the processor system on the
"Pneumatic Controller" card and of the
fan for purging O2 from inside the
device.
ADC
Uref5V
ADCref
DACref
10
Reference voltage values of the
"Pneumatic Controller" card.
Page 11
Operation
Diagnostic page: "Pneumatic Sensors"
Diagnostic page: "Pneumatic Sensors"
This page displays the characteristic data of the pressure
sensor, flow sensor and O2 sensor.
Example display for Pneumatic Sensors:
Pressure sensors Measured values in mbar and V and
calibration values in V for the
insp
inspiratory pressure sensor and
exp.
expiratory pressure sensor
oes
not used
aux
not used
Paw [ mbar]
Airway pressure Paw in mbar.
Calculated from the measured values
of the pressure sensor on the
inspiratory side and the pressure
sensor on the expiratory side
– with correction for hose resistance.
(PCB CPU)
Comparative value in mbar.
Output voltage of the pressure
sensor on the inspiratory side.
This value is also loaded on the
"CO2 Carrier" card.
R [mbar/L/S]
Inspiratory: hose resistance – from
the inspiratory port of the device to
the Y-piece, in mbar/L/s
Expiratory: hose resistance from
the Y-piece to the expiratory port of
the device in mbar/L/s
Upper line: measured by the safety
software during operation
Lower line: determined during the
device check
These values are measured with
different flows.
C [mL/mbar]
Inspiratory hose compliance in
mL/mbar,
determined during the device check.
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Page 12
Operation
Diagnostic page: "Pneumatic Sensors"
Flowsensor
Measured values from expiratory flow
measurement. All values are displayed
under BTPS conditions unless
otherwise specified.
BTPS
Body Temperature
Pressured, Saturated:
37 °C, atmospheric pressure + Insp.
pressure, 100 % rel. humidity.
All measured values and settings of
Evita 2 dura are based on BTPS.
NTPS
Normal Temperature and
Pressured, Saturated
20 °C, 1013 mbar, 100 % rel.
humidity.
Corresponds e.g. to the unprocessed
value of the measured expiratory flow.
NTPD
Normal Temperature and
Pressured, Dry
20 °C, 1013 mbar, dry
The mixer supplies e.g. the flow under
these conditions.
The setting of Evita 2 dura under
BTPS is converted to NTPD for the
mixer.
Flow Exp
[L/min]
Measured expiratory flow from NTPS
to BTPS.
Corresponds to the display value.
[L/min] NTPD/S Unprocessed measured value for
"Flow" under NTPD or NTPS
conditions.
[V]
Voltage values of Flow measurement
in V:
Uinop
Specified voltage values ≥0.1 V:
sensor OK if F0 and Fsig OK. If
voltage <0.1 V, the message "Flow
measurement inop" is displayed.
FO
4x amplified bridge voltage for Flow
measurement value.
Specified value in no-flow state =
4.04 V.
Fsig
2x amplified bridge voltage for Flow
measurement value.
Specified value in no-flow state =
2.02 V.
Cal D/A
Decimal value of the D/A conversion
for flow sensor calibration:
Specified value = 2200 to 3200.
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Page 13
Operation
Diagnostic page: "Pneumatic Sensors"
Switch
Microswitch for detecting the
position of the Flow Sensor:
on = Flow sensor in correct
operating position
off = Flow sensor not ready for
operation, replacement
position
NTPS → BTPS
Conversion factor,
From unprocessed "measured flow"
value under NTPS conditions to the
displayed "Flow" value under BTPS
conditions.
Permitted deviation from
"Quotient" = 5 %.
Quotient
Calculated conversion factor from
NTPS to BTPS
BTPS → NTPD
Conversion factor from Flow BTPS
to NTPD.
Mvinsp [ L/min ]
Inspiratory minute volume calculated
from the control signals of the mixer.
The measured expiratory minute
volume must not exceed this value
by more than 20 %. If the difference
is greater, the message "Flow
measurement inop" is displayed.
This deviation can be caused by the
following faults:
– Flow measurement is defective
– An unauthorised external flow is
being fed into the system (e.g. an
other medicament nebuliser than
described in the Instructions for
Use)
– The mixer is supplying an
excessive flow
O2 Sensor
Measurement and calibration values
for the inspiratory O2 measurement.
The output voltage of the O2 sensor
is amplified directly at the sensor.
FiO2 [ Vol.%]
Measured O2 concentration in % by
volume, pressure compensated.
V
Amplified sensor voltage at the input
of the "Pneumatic Controller" card.
The voltage is read off twice from
this card. See Cal(V) for the
permitted voltage range.
Pmean. O2 [mbar] Present average pressure in the
hose system in mbar. This value is
needed for pressure compensation
of the O2 measurement.
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Page 14
Operation
Diagnostic page: "Pneumatic Sensors"
Cal [V]
Amplified sensor voltage on calibration with
100 % O2 by volume.
Permitted range: 1.257 to 5.644 V
Voltage too low:
possible cause: O2 sensor worn
Voltage too high:
possible cause: O2 measurement defective
(O2 amplifier or Pneumatic Controller card)
P [mbar]
14
Atmospheric pressure taken into account in
mbar during O2 measurement calibration.
Page 15
Operation
Diagnostic page: "Pneumatic Valves"
Diagnostic page: "Pneumatic Valves"
This page displays the output states of the pilot valves,
the status of the HPSV (High Pressure Servo Valve), the
O2 setting and the PEEP setting.
Display example:
Valves
Actuation of the pneumatic pilot
valves
off = pilot valve de-energised
on = pilot valve activated
Y1.1 O2/Air changeover valve
off = switched to air
Y1.2 O2 measurement calibration
valve,
on = O2 measurement
calibration
Y1.3 Safety valve
on = Ventilation
off = Safety shutdown
activated
Y1.4 Nebuliser valve,
off = Medicament nebuliser off
Y6.1 Calibration valve for inspiratory
pressure sensor S6.1,
on = Calibration
Y6.2 Calibration valve for expiratory
pressure sensor S6.2,
on = Calibration
Yx.x for future operation
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Page 16
Operation
Diagnostic page: "Pneumatic Valves"
HPSV
O2
Air
Supply pressures and status reports of the
flow metering valve for O2 and Air.
Pressure:
The absolute pressures for Air and O2 are
displayed in bar.
Absolute pressure = Rel. supply pressure +
atmospheric pressure.
Measurement range of the supply pressure
sensors =
0 to 7 bar
Sensitivity: 1.58 V / bar ±8 mV
Offset voltage = 300 mV ±30 mV
Status:
Status messages from the relevant "HPSVController" card for O2 and Air.
0 = No error
2 = Supply pressure less than 2 bar
absolute, failure of the pressure supply.
1.3 to 15 = Error on the HPSV
Controller card or in the HPSV
cartridge.
The settings for Flow and Fi O2, and the
Setting
measured Fi O2 value are displayed.
FiO2
Flow
Measured
FiO2
PEEP
Values for the PEEP/PIP valve Y4.1
Setting
PEEP setting in mbar
Measured
Measured PEEP during airway pressure
measurement, in mbar
Cal. values Calibration values for actuating the
PEEP/PIP valve.
On replacing the valve or card:
●
16
Carry out calibration by DrägerService.
Page 17
Operation
Diagnostic page: "Service Logbook"
Diagnostic page: "Service Logbook"
This page displays the error code number list, containing
all the recorded software and hardware error messages.
Example display:
Structure of the error code number list
The error code number list records all the device failures
(software and hardware) signalled by the safety software.
The following information is recorded:
Code, count, first occurrence, last occurrence.
The error messages are stored in order of their
occurrence. The entries are sorted by code. If an error
message has already occurred, a new line is not created:
instead, only the date of last occurrence is amended, and
the count is incremented by 1.
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Page 18
Operation
Diagnostic page: "Service Logbook"
Structure of the error code numbers:
LL
= Reference to the components, card or software
NN = Type of error
MMM = Explanation
LL
NN
MMM
00
XX
XXX
01
XX
XXX
02
01
to
61
71
001
to
999
001
002
003
to
006
007
008
009
010
011
012
013
014
015
016
017
018
019
020
72
03
18
XX
021
000
to
006
007
to
070
XXX
Meaning
Normal monitoring. Only
recorded in the user logbook.
Settings. Only recorded in the
user logbook.
Errors detected by the safety
software.
Loudspeaker not detected.
Flow measurement defective.
Gold cap capacitor.
BOOT test error.
Auxiliary alarm triggered.
Current across piezo alarm
generator too high.
Current across piezo alarm
generator too low.
Nebuliser valve monitoring
defective.
"Loudspeaker" monitoring
circuit reports an error.
"Loudspeaker" monitoring
circuit reports an error.
+15 V too low.
+10 V too low.
A/D conversion for O2
measurement defective.
Actuation of the O2/Air
changeover valve defective.
Incorrect nebuliser gas.
Cold start detection defective.
Hardware initialisation
defective.
Quartz times differ.
Errors detected by the
ventilation software.
Errors detected by the
ventilation software.
Front panel components.
Page 19
Operation
Diagnostic page: "Service Logbook"
LL
NN
MMM
04
XX
XXX
01
XX
01
02
Meaning
Electronic system components.
Components not mounted on
the cards.
Power adapter
Pneumatic components
Fan
Reset-up line
Reset-down line
Disable line
O2/Air changeover valve.
06
XX
XXX
XXX
XXX
001
002
003
001
to
004
XX
07
08
09
10
11
12
13
14
15
XX
XX
XX
XX
XX
XXX
XX
98
XX
XX
XXX
XXX
XXX
XXX
XXX
XXX
XXX
001
XXX
XXX
16
XX
XXX
17
XX
XXX
"Front panel" card
18
XX
XXX
"Pneumatic Motherboard" card
19
XX
XXX
"Electronic Motherboard" card
05
04
Extension box
Components not yet
implemented.
Software error
Future expansion
Other
"Pneumatic Controller" card
"HPSV Controller Air" card
"HPSV Controller O2" card
"CPU 68332" card
BOOT error
"CO2 Carrier" card
"Communication" card
(option)
"Paediatric Flow" card
(in preparation)
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Page 20
These Instructions for Use apply only to
Evita 2 dura with the option
"Service Plus"
with Serial No.:
If no Serial No. has been filled in by
Dräger these Instructions for Use are
provided for general information only and
are not intended for use with any specific
machine or device.
ç
Directive 93/42/EEC
concerning Medical Devices
Dräger Medical AG & Co. KGaA
Germany
z Moislinger Allee 53 – 55
D-23542 Lübeck
y +49 451 8 82 - 0
x 26 80 70
FAX +49 451 8 82-20 80
! http://www.draeger.com
90 28 729 - GA 5664.803 en
Dräger Medical AG & Co. KGaA
2nd edition - July 2001
Subject to alteration